10-Q

I

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
	THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

OR

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
	SECURITIES EXCHANGE ACT OF 1934

For transition period from          to          

Commission File Number 000-10537

(Exact name of Registrant as specified in its charter)

Delaware	36-3143493
(State or other jurisdiction	(I.R.S. Employer Identification Number)
of incorporation or organization)

37 South River Street, Aurora, Illinois     60507

(Address of principal executive offices) (Zip Code)

(630) 892-0202

(Registrant’s telephone number, including area code)

Not applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	OSBC	The Nasdaq Stock Market

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒        No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of ‘‘large accelerated filer,’’ ‘‘accelerated filer,’’ ‘‘smaller reporting company,’’ and ‘‘emerging growth company’’ in Rule 12b–2 of the Exchange Act.

Large accelerated filer☐Accelerated filer☒

Non-accelerated filer☐Smaller reporting company☐Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Exchange Act Rule 12b-2).

Yes ☐        No ☒

As of May 3, 2024, the Registrant has 44,845,629 shares of common stock outstanding at $1.00 par value per share.

OLD SECOND BANCORP, INC.

Form 10-Q Quarterly Report

Table of Contents

	PART I
		Page Number
Item 1.	Financial Statements	4
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	38
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	58
Item 4.	Controls and Procedures	59
	PART II
Item 1.	Legal Proceedings	60
Item 1.A.	Risk Factors	60
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	60
Item 3.	Defaults Upon Senior Securities	60
Item 4.	Mine Safety Disclosure	61
Item 5.	Other Information	61
Item 6.	Exhibits	62
	Signatures	63

2

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This report and other publicly available documents of the Company contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, including, but not limited to, management’s expectations regarding future plans, strategies and financial performance, including regulatory developments, industry and economic trends and estimates and assumptions underlying accounting policies.  Forward-looking statements are based on our current beliefs, expectations and assumptions and on information currently available and, can be identified by the use of words such as “expects,” “intends,” “believes,” “may,” “will,” “would,” “could,” “should,” “plan,” “anticipate,” “estimate,” “possible,” “likely” or the negative thereof as well as other similar words and expressions of the future. Forward-looking statements are subject to risks, uncertainties and assumptions that are difficult to predict as to timing, extent, likelihood and degree of occurrence, which could cause our actual results to differ materially from those anticipated in or by such statements. Potential risks and uncertainties include, but are not limited to, the following:

● our ability to execute our growth strategy;

● negative economic conditions that adversely affect the economy, real estate values, the job market and other factors nationally and in our market area, in each case that may affect our liquidity and the performance of our loan portfolio;

● risks with respect to our ability to successfully expand and integrate businesses and operations that we acquire, as well our ability to identify and complete future mergers or acquisitions;

● the financial success and viability of the borrowers of our commercial loans;

● changes in U.S. monetary policy, the level and volatility of interest rates, the capital markets and other market conditions that may affect, among other things, our liquidity and the value of our assets and liabilities;

● competitive pressures from other financial service businesses and from nontraditional financial technology (“FinTech”) companies;

● any negative perception of our reputation or financial strength;

● our ability to raise additional capital on acceptable terms when needed;

● our ability to raise cost-effective funding to support business plans when needed:

● our ability to use technology to provide products and services that will satisfy customer demands and create efficiencies in operations;

● adverse effects on our information technology systems resulting from system failures, human error or cyberattacks;

● adverse effects of failures by our vendors to provide agreed upon services in the manner and at the cost agreed, particularly our information technology vendors and those vendors performing a service on the Company’s behalf;

● the impact of any claims or legal actions, including any effect on our reputation;

● losses incurred in connection with repurchases and indemnification payments related to mortgages;

● the soundness of other financial institutions and other counter-party risk;

● changes in accounting standards, rules and interpretations and the related impact on our financial statements;

● our ability to receive dividends from our subsidiaries;

● a decrease in our regulatory capital ratios or negative changes in our capital position;

● adverse federal or state tax assessments, or changes in tax laws or policies;

● risks associated with actual or potential litigation or investigations by customers, regulatory agencies or others;

● legislative or regulatory changes, particularly changes in regulation of financial services companies;

● increased costs of compliance, heightened regulatory capital requirements and other risks associated with changes in regulation and the current regulatory environment;

● risks associated with complex and changing regulatory environments, including, among others, with respect to data privacy, artificial intelligence, information security, climate change or other environmental, social and governance matters, and labor matters, relating to our operations;

● the adverse effects of events beyond our control that may have a destabilizing effect on financial markets and the economy, such as epidemics and pandemics, war or terrorist activities, such as the war in Ukraine, the Middle East conflict, and the conflict between China and Taiwan, essential utility outages, deterioration in the global economy, instability in the credit markets, disruptions in our customers’ supply chains or disruption in transportation;

● changes in trade policy and any related tariffs; and

● each of the factors and risks under the heading “Risk Factors” in our 2023 Annual Report on Form 10-K and in subsequent filings we make with the SEC.

Because the Company’s ability to predict results or the actual effect of future plans or strategies is inherently uncertain, there can be no assurances that future actual results will correspond to any forward-looking statements and you should not rely on any forward-looking statements.  Additionally, all statements in this Form 10-Q, including forward-looking statements, speak only as of the date they are made, and the Company undertakes no obligation to update any statement in light of new information or future events, except as required by applicable law.

3

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Balance Sheets

(In thousands, except share data)

	(unaudited)
	March 31,		December 31,
	2024		2023
Assets
Cash and due from banks	$	48,841	$	55,534
Interest earning deposits with financial institutions		49,253		44,611
Cash and cash equivalents		98,094		100,145
Securities available-for-sale, at fair value		1,168,797		1,192,829
Federal Home Loan Bank Chicago (“FHLBC”) and Federal Reserve Bank Chicago (“FRBC”) stock		28,518		33,355
Loans held-for-sale		1,072		1,322
Loans		3,969,411		4,042,953
Less: allowance for credit losses on loans		44,113		44,264
Net loans		3,925,298		3,998,689
Premises and equipment, net		81,290		79,310
Other real estate owned		5,123		5,123
Mortgage servicing rights, at fair value		10,564		10,344
Goodwill		86,478		86,478
Core deposit intangible		10,637		11,217
Bank-owned life insurance (“BOLI”)		110,490		109,318
Deferred tax assets, net		31,699		31,077
Other assets		58,012		63,592
Total assets	$	5,616,072	$	5,722,799
Liabilities
Deposits:
Noninterest bearing demand	$	1,799,927	$	1,834,891
Interest bearing:
Savings, NOW, and money market		2,221,696		2,207,949
Time		586,652		527,906
Total deposits		4,608,275		4,570,746
Securities sold under repurchase agreements		33,546		26,470
Other short-term borrowings		220,000		405,000
Junior subordinated debentures		25,773		25,773
Subordinated debentures		59,403		59,382
Other liabilities		72,916		58,147
Total liabilities		5,019,913		5,145,518
Stockholders’ Equity
Common stock		44,908		44,705
Additional paid-in capital		203,129		202,223
Retained earnings		412,388		393,311
Accumulated other comprehensive loss		(63,361)		(62,781)
Treasury stock		(905)		(177)
Total stockholders’ equity		596,159		577,281
Total liabilities and stockholders’ equity	$	5,616,072	$	5,722,799

	March 31, 2024		December 31, 2023
	Common		Common
	Stock		Stock
Par value	$	1.00	$	1.00
Shares authorized		60,000,000		60,000,000
Shares issued		44,907,619		44,705,150
Shares outstanding		44,845,629		44,697,917
Treasury shares		61,990		7,233

See accompanying notes to consolidated financial statements.

4

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Income

(In thousands, except per share data)

	(unaudited)
	Three Months Ended March 31,
	2024		2023
Interest and dividend income
Loans, including fees	$	62,673	$	57,210
Loans held-for-sale		14		12
Securities:
Taxable		8,092		10,735
Tax exempt		1,306		1,337
Dividends from FHLBC and FRBC stock		635		280
Interest bearing deposits with financial institutions		610		585
Total interest and dividend income		73,330		70,159
Interest expense
Savings, NOW, and money market deposits		4,037		1,149
Time deposits		4,041		664
Securities sold under repurchase agreements		86		9
Other short-term borrowings		4,557		2,345
Junior subordinated debentures		280		279
Subordinated debentures		546		546
Senior notes		-		994
Notes payable and other borrowings		-		87
Total interest expense		13,547		6,073
Net interest and dividend income		59,783		64,086
Provision for credit losses		3,500		3,501
Net interest and dividend income after provision for credit losses		56,283		60,585
Noninterest income
Wealth management		2,561		2,270
Service charges on deposits		2,415		2,424
Secondary mortgage fees		50		59
Mortgage servicing rights mark to market gain (loss)		94		(525)
Mortgage servicing income		488		516
Net gain on sales of mortgage loans		314		306
Securities gains (losses), net		1		(1,675)
Change in cash surrender value of BOLI		1,172		242
Card related income		2,376		2,244
Other income		1,030		1,489
Total noninterest income		10,501		7,350
Noninterest expense
Salaries and employee benefits		24,312		22,248
Occupancy, furniture and equipment		3,927		3,475
Computer and data processing		2,255		1,774
FDIC insurance		667		584
Net teller & bill paying		521		502
General bank insurance		309		305
Amortization of core deposit intangible		580		624
Advertising expense		192		142
Card related expense		1,277		1,216
Legal fees		226		319
Consulting & management fees		336		790
Other real estate expense, net		46		306
Other expense		3,593		3,637
Total noninterest expense		38,241		35,922
Income before income taxes		28,543		32,013
Provision for income taxes		7,231		8,406
Net income	$	21,312	$	23,607
Basic earnings per share	$	0.48	$	0.53
Diluted earnings per share		0.47		0.52
Dividends declared per share		0.05		0.05

See accompanying notes to consolidated financial statements.

5

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Comprehensive Income (Loss)

(In thousands)

	(unaudited)
	Three Months Ended March 31,
	2024		2023
Net Income	$	21,312	$	23,607
Unrealized holding (losses) gains on available-for-sale securities arising during the period		(876)		16,210
Related tax benefit (expense)		245		(4,536)
Holding (losses) gains, after tax, on available-for-sale securities		(631)		11,674
Less: Reclassification adjustment for the net gains (losses) realized during the period
Net realized gains (losses)		1		(1,675)
Related tax benefit		-		471
Net realized gains (losses) after tax		1		(1,204)
Other comprehensive (loss) income on available-for-sale securities		(632)		12,878
Changes in fair value of derivatives used for cash flow hedges		52		1,602
Related tax expense		-		(456)
Other comprehensive income on cash flow hedges		52		1,146
Total other comprehensive (loss) income		(580)		14,024
Total comprehensive income	$	20,732	$	37,631

	Accumulated		Accumulated		Total
	Unrealized Gain		Unrealized Gain		Accumulated Other
	(Loss) on Securities		(Loss) on Derivative		Comprehensive
(unaudited)	Available-for -Sale		Instruments		Income/(Loss)
For the Three Months Ended
Balance, January 1, 2023	$	(88,892)	$	(4,232)	$	(93,124)
Other comprehensive income, net of tax		12,878		1,146		14,024
Balance, March 31, 2023	$	(76,014)	$	(3,086)	$	(79,100)
Balance, January 1, 2024	$	(60,590)	$	(2,191)	$	(62,781)
Other comprehensive (loss) income, net of tax		(632)		52		(580)
Balance, March 31, 2024	$	(61,222)	$	(2,139)	$	(63,361)

See accompanying notes to consolidated financial statements.

6

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

(In thousands)

	(unaudited)
	Three Months Ended March 31,
	2024		2023
Cash flows from operating activities
Net income	$	21,312	$	23,607
Adjustments to reconcile net income to net cash provided by operating activities:
Net premium / discount amortization on securities		821		799
Securities (gains) losses, net		(1)		1,675
Provision for credit losses		3,500		3,501
Originations of loans held-for-sale		(9,103)		(10,206)
Proceeds from sales of loans held-for-sale		9,536		9,957
Net gains on sales of mortgage loans		(314)		(306)
Mortgage servicing rights mark to market (gain) loss		(94)		525
Net accretion of discount on loans and unfunded commitments		(157)		(1,180)
Net change in cash surrender value of BOLI		(1,172)		(242)
Net losses on sale of other real estate owned		-		28
Provision for other real estate owned valuation losses		-		269
Depreciation of fixed assets and amortization of leasehold improvements		1,350		1,046
Net gains on disposal and transfer of fixed assets		-		(434)
Amortization of core deposit intangibles		580		624
Change in current income taxes receivable		4,825		7,043
Deferred tax (benefit) expense		(375)		1,442
Change in accrued interest receivable and other assets		1,543		2,635
Accretion of purchase accounting adjustment on time deposits		(78)		(367)
Change in accrued interest payable and other liabilities		14,059		(6,344)
Stock based compensation		1,058		932
Net cash provided by operating activities		47,290		35,004
Cash flows from investing activities
Proceeds from maturities and calls, including pay down of securities available-for-sale		32,665		37,718
Proceeds from sales of securities available-for-sale		5,331		66,170
Purchases of securities available-for-sale		(15,661)		(4,186)
Proceeds from redemptions (purchases) of FHLBC/FRBC stock		4,837		(9,675)
Net change in loans		70,048		(132,445)
Proceeds from sales of other real estate owned, net of participations and improvements		-		300
Proceeds from disposition of premises and equipment		-		756
Net purchases of premises and equipment		(3,330)		(1,560)
Net cash provided by (used in) investing activities		93,890		(42,922)
Cash flows from financing activities
Net change in deposits		37,607		(213,136)
Net change in securities sold under repurchase agreements		7,076		(4,259)
Net change in other short-term borrowings		(185,000)		225,000
Repayment of term note		-		(9,000)
Vesting of restricted stock		99		-
Dividends paid on common stock		(2,237)		(2,237)
Purchase of treasury stock		(776)		(605)
Net cash (used in) provided by financing activities		(143,231)		(4,237)
Net change in cash and cash equivalents		(2,051)		(12,155)
Cash and cash equivalents at beginning of period		100,145		115,177
Cash and cash equivalents at end of period	$	98,094	$	103,022

See accompanying notes to consolidated financial statements.

7

Old Second Bancorp, Inc. and Subsidiaries

Consolidated Statements of Changes in

Stockholders’ Equity

(In thousands)

							Accumulated
			Additional				Other				Total
(unaudited)	Common		Paid-In		Retained		Comprehensive		Treasury		Stockholders’
	Stock		Capital		Earnings		(Loss) Income		Stock		Equity
For the Three Months Ended
Balance, January 1, 2023	$	44,705	$	202,276	$	310,512	$	(93,124)	$	(3,228)	$	461,141
Net income						23,607						23,607
Other comprehensive income, net of tax								14,024				14,024
Dividends declared on common stock, ($0.05 per share)						(2,229)						(2,229)
Vesting of restricted stock				(3,087)						3,087		-
Stock based compensation				932								932
Purchase of treasury stock from taxes withheld on stock awards										(605)		(605)
Balance, March 31, 2023	$	44,705	$	200,121	$	331,890	$	(79,100)	$	(746)	$	496,870
Balance, January 1, 2024	$	44,705	$	202,223	$	393,311	$	(62,781)	$	(177)	$	577,281
Net income						21,312						21,312
Other comprehensive loss, net of tax								(580)				(580)
Dividends declared on common stock, ($0.05 per share)						(2,235)						(2,235)
Vesting of restricted stock		203		(152)						48		99
Stock based compensation				1,058								1,058
Purchase of treasury stock from taxes withheld on stock awards										(776)		(776)
Balance, March 31, 2024	$	44,908	$	203,129	$	412,388	$	(63,361)	$	(905)	$	596,159

8

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 1 – Basis of Presentation and Changes in Significant Accounting Policies

The accounting policies followed in the preparation of the interim consolidated financial statements are consistent with those used in the preparation of the annual financial information.  The interim consolidated financial statements reflect all normal and recurring adjustments that are necessary, in the opinion of management, for a fair statement of results for the interim period presented.  Results for the period ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.  These interim consolidated financial statements and accompanying notes are unaudited and should be read in conjunction with the audited financial statements and notes included in Old Second Bancorp, Inc.’s (the “Company”) annual report on Form 10-K for the year ended December 31, 2023.  Unless otherwise indicated, dollar amounts in the tables contained in the notes to the consolidated financial statements are in thousands.  Certain items in prior periods have been reclassified to conform to the current presentation.

The Company’s consolidated financial statements are prepared in accordance with United States generally accepted accounting principles (“GAAP”) and follow general practices within the banking industry.  Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes.  These estimates, assumptions, and judgments are based on information available as of the date of the consolidated financial statements.  Future changes in information may affect these estimates, assumptions, and judgments, which, in turn, may affect amounts reported in the consolidated financial statements.

Recent Accounting Pronouncements

The following is a summary of recent accounting pronouncements that have impacted or could potentially affect the Company:  

ASU 2023-06 – On October 9, 2023, the FASB issued ASU 2023-06 “Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative.” The amendments in the ASU modify the disclosure or presentation requirements of a variety of Topics in the Codification. Certain of the amendments represent clarifications to, or technical corrections of, the current requirements. Each amendment in the ASU will only become effective if the SEC removes the related disclosure or presentation requirement from its existing regulations by June 30, 2027. The amendments in this ASU are not expected to have a material impact on the financial statements of the Company.

ASU 2023-09 – On December 14, 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. The amendments require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation, and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate). The amendments require that all entities disclose on an annual basis the following information about income taxes paid: (1) The amount of income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes, and (2) The amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than 5 percent of total income taxes paid (net of refunds received). The amendments also require that all entities disclose the following information: (1) Income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign, and (2) Income tax expense (or benefit) from continuing operations disaggregated by federal (national), state, and foreign. The ASU is effective for public business entities for annual periods beginning after December 15, 2024.  Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments should be applied on a prospective basis. Retrospective application is permitted.  The Company will adopt this ASU for the reporting period beginning January 1, 2025, and does not expect the amendments to have a material impact to the financial statements of the Company.

ASU 2024-01 – On March 21, 2024, the FASB issued ASU 2024-01 “Compensation - Stock Compensation (Topic 718) - Scope Application of Profits Interest and Similar Awards” which clarifies how an entity determines whether a profits interest or similar award is within the scope of Topic 718, or is not a share-based payment arrangement and therefore within the scope of other guidance. ASU 2024-01 provides an illustrative example with multiple fact patterns and also amends certain language in the “Scope” and “Scope Exceptions” sections of Topic 718 to improve its clarity and operability without changing the guidance. Entities can apply the amendments either retrospectively to all prior periods presented in the financial statements or prospectively to profits interest and similar awards granted or modified on or after the date of adoption. If prospective application is elected, an entity must disclose the nature of and reason for the change in accounting principle. ASU 2024-01 is effective January 1, 2025, including interim periods, and is not expected to have a material impact the financial statements of the Company.

9

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

ASU 2024-02 – On March 29, 2024, the FASB issued ASU 2024-02 “Codification Improvements” amends the Codification to remove references to various concept statements and impacts a variety of topics in the Codification. The amendments apply to all reporting entities within the scope of the affected accounting guidance, but in most instances the references removed are extraneous and not required to understand or apply the guidance. Generally, the amendments in ASU 2024-02 are not intended to result in significant accounting changes for most entities. ASU 2024-02 is effective January 1, 2025 and is not expected to have a material impact the financial statements of the Company.

Change in Significant Accounting Policies

Significant accounting policies are presented in Note 1 to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.  These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the consolidated financial statements and how those values are determined.  During the first quarter of 2024, the Company had no changes to significant accounting policies or estimates.

Subsequent Events

On April 16, 2024, our Board of Directors declared a cash dividend of $0.05 per share of common stock payable on May 6, 2024, to stockholders of record as of April 26, 2024; dividends of $2.2 million were paid to stockholders on May 6, 2024.

10

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 2 – Securities

Investment Portfolio Management

Our investment portfolio serves the liquidity needs and income objectives of the Company.  While the portfolio serves as an important component of the overall liquidity management at the Bank, portions of the portfolio also serve as income producing assets.  The size and composition of the portfolio reflects liquidity needs, loan demand and interest income objectives.  Portfolio size and composition will be adjusted from time to time.  While a significant portion of the portfolio consists of readily marketable securities to address liquidity, other parts of the portfolio may reflect funds invested pending future loan demand or to maximize interest income without undue interest rate risk.

Investments are comprised of debt securities and non-marketable equity investments.  Securities available-for-sale are carried at fair value.  Unrealized gains and losses, net of tax, on securities available-for-sale are reported as a separate component of equity.  This balance sheet component changes as interest rates and market conditions change.  Unrealized gains and losses are not included in the calculation of regulatory capital.  

Federal Home Loan Bank of Chicago (“FHLBC”) and Federal Reserve Bank of Chicago (“FRBC”) stock are considered nonmarketable equity investments.  FHLBC stock was recorded at $13.6 million at March 31, 2024 and $18.5 million at December 31, 2023.  FRBC stock was recorded at $14.9 million at March 31, 2024 and December 31, 2023.

The following tables summarize the amortized cost and fair value of the securities portfolio at March 31, 2024, and December 31, 2023, and the corresponding amounts of gross unrealized gains and losses:

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
March 31, 2024	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,712	$	-	$	(3,712)	$	171,000
U.S. government agencies		59,829		-		(2,850)		56,979
U.S. government agencies mortgage-backed		114,061		-		(12,986)		101,075
States and political subdivisions		233,343		682		(11,283)		222,742
Collateralized mortgage obligations		431,084		272		(51,753)		379,603
Asset-backed securities		69,666		37		(2,996)		66,707
Collateralized loan obligations		171,131		52		(492)		170,691
Total securities available-for-sale	$	1,253,826	$	1,043	$	(86,072)	$	1,168,797

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
December 31, 2023	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,602	$	-	$	(5,028)	$	169,574
U.S. government agencies		60,011		-		(3,052)		56,959
U.S. government agencies mortgage-backed		118,492		-		(12,122)		106,370
States and political subdivisions		236,072		1,325		(10,332)		227,065
Collateralized mortgage obligations		442,987		421		(50,864)		392,544
Asset-backed securities		71,616		42		(3,222)		68,436
Collateralized loan obligations		173,201		30		(1,350)		171,881
Total securities available-for-sale	$	1,276,981	$	1,818	$	(85,970)	$	1,192,829

¹ Excludes accrued interest receivable of $6.3 million and $6.6 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

11

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The fair value, amortized cost and weighted average yield of debt securities at March 31, 2024, by contractual maturity, are listed in the table below.  Securities not due at a single maturity date are shown separately.

			Weighted
	Amortized		Average		Fair
Securities available-for-sale	Cost		Yield		Value
Due in one year or less	$	197,825	1.05	%	$	193,861
Due after one year through five years		53,675	1.92			50,940
Due after five years through ten years		56,283	2.77			51,681
Due after ten years		160,101	3.11			154,239
		467,884	2.06			450,721
Mortgage-backed and collateralized mortgage obligations		545,145	2.43			480,678
Asset-backed securities		69,666	4.06			66,707
Collateralized loan obligations		171,131	6.84			170,691
Total securities available-for-sale	$	1,253,826	2.99	%	$	1,168,797

At March 31, 2024, the Company had no securities issued from any one originator, other than the U.S. Government and its agencies, which individually amounted to over 10% of the Company’s stockholders’ equity.

Securities with unrealized losses with no corresponding allowance for credit losses at March 31, 2024 and December 31, 2023, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows (in thousands except for number of securities):

	Less than 12 months					12 months or more
March 31, 2024	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized		Fair		Number of	Unrealized		Fair		Number of	Unrealized		Fair
Securities available-for-sale	Securities	Losses		Value		Securities	Losses		Value		Securities	Losses		Value
U.S. Treasuries	-	$	-	$	-	4	$	3,712	$	171,000	4	$	3,712	$	171,000
U.S. government agencies	-		-		-	9		2,850		56,979	9		2,850		56,979
U.S. government agencies mortgage-backed	-		-		-	128		12,986		101,075	128		12,986		101,075
States and political subdivisions	20		299		63,127	35		10,984		126,955	55		11,283		190,082
Collateralized mortgage obligations	-		-		-	144		51,753		364,263	144		51,753		364,263
Asset-backed securities	-		-		-	18		2,996		60,864	18		2,996		60,864
Collateralized loan obligations	2		7		10,396	15		485		99,070	17		492		109,466
Total securities available-for-sale	22	$	306	$	73,523	353	$	85,766	$	980,206	375	$	86,072	$	1,053,729

	Less than 12 months					12 months or more
December 31, 2023	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized			Fair	Number of	Unrealized			Fair	Number of	Unrealized			Fair
Securities available-for-sale	Securities	Losses			Value	Securities	Losses			Value	Securities	Losses			Value
U.S. Treasuries	-	$	-	$	-	4	$	5,028	$	169,574	4	$	5,028	$	169,574
U.S. government agencies	-		-		-	9		3,052		56,959	9		3,052		56,959
U.S. government agencies mortgage-backed	-		-		-	128		12,122		106,370	128		12,122		106,370
States and political subdivisions	12		137		27,974	25		10,195		106,138	37		10,332		134,112
Collateralized mortgage obligations	2		8		734	143		50,856		376,236	145		50,864		376,970
Asset-backed securities	-		-		-	19		3,222		63,941	19		3,222		63,941
Collateralized loan obligations	-		-		-	25		1,350		150,902	25		1,350		150,902
Total securities available-for-sale	14	$	145	$	28,708	353	$	85,825	$	1,030,120	367	$	85,970	$	1,058,828

Each quarter, we perform an analysis to determine if any of the unrealized losses on securities available-for-sale are comprised of credit losses as compared to unrealized losses due to market interest rate adjustments.  Our assessment includes a review of the unrealized loss for each security issuance held; the financial condition and near-term prospects of the issuer, including external credit ratings and recent downgrades; and our ability and intent to hold the security for a period of time sufficient for a recovery in value. We also consider the extent to which the securities are issued by the federal government or its agencies, and any guarantee of issued amounts by those agencies.  The portfolio continues to consist of a mix of fixed and floating-rate, high quality securities, largely rated AA (or better), displaying an overall effective duration of approximately 3.0 years.  No credit losses were determined to be present as of March 31, 2024, as there was no credit quality deterioration noted.  Therefore, no provision for credit losses on securities was recognized for the first quarter of 2024.

12

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The following table presents net realized losses on securities available-for-sale for three months ended:

		Three Months Ended
		March 31,
Securities available-for-sale	2024			2023
Proceeds from sales of securities	$	5,331		$	66,170
Gross realized gains on securities	$	1		$	-
Gross realized losses on securities		-			(1,675)
Net realized gains (losses)	$	1		$	(1,675)
Income tax benefit on net realized losses	$	-		$	471
Effective tax rate applied		0.0	%		28.1	%

As of March 31, 2024, securities valued at $804.9 million were pledged for borrowings, and for other purposes, a decrease from $810.2 million of securities pledged at year-end 2023.  

Note 3 – Loans and Allowance for Credit Losses on Loans

Major segments of loans were as follows:

	March 31, 2024		December 31, 2023
Commercial	$	796,552	$	841,697
Leases		425,615		398,223
Commercial real estate – investor		1,018,382		1,034,424
Commercial real estate – owner occupied		782,603		796,538
Construction		169,174		165,380
Residential real estate – investor		51,522		52,595
Residential real estate – owner occupied		220,223		226,248
Multifamily		387,479		401,696
HELOC		98,762		103,237
Other 1		19,099		22,915
Total loans		3,969,411		4,042,953
Allowance for credit losses on loans		(44,113)		(44,264)
Net loans 2	$	3,925,298	$	3,998,689

¹ The “Other” segment includes consumer loans and overdrafts in this table and in subsequent tables within Note 3 – Loans and Allowance for Credit Losses on Loans.

² Excludes accrued interest receivable of $19.4 million and $20.5 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

It is the policy of the Company to review each prospective credit prior to making a loan in order to determine if an adequate level of security or collateral has been obtained.  The type of collateral, when required, will vary from liquid assets to real estate.  The Company seeks to assure access to collateral, in the event of borrower default, through adherence to lending laws, the Company’s lending standards and credit monitoring procedures.  Although the Bank makes loans primarily within its market area, there are no significant concentrations of loans where the customers’ ability to honor loan terms is dependent upon a single economic sector.  The real estate related categories listed above represent 68.7% and 68.8% of the portfolio at March 31, 2024, and December 31, 2023, respectively, and include a mix of owner occupied and non-owner occupied commercial real estate, residential, construction and multifamily loans.  

13

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The following tables represent the activity in the allowance for credit losses for loans, or the ACL, for the three months ended March 31, 2024 and 2023:

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2024
Commercial	$	3,998	$	2,326	$	15	$	73	$	6,382
Leases		2,952		(33)		-		40		2,959
Commercial real estate – investor		17,105		(902)		16		83		16,270
Commercial real estate – owner occupied		12,280		2,580		3,887		19		10,992
Construction		1,038		59		-		-		1,097
Residential real estate – investor		669		(35)		-		2		636
Residential real estate – owner occupied		1,821		(169)		-		8		1,660
Multifamily		2,728		(135)		-		-		2,593
HELOC		1,656		(165)		-		17		1,508
Other		17		18		70		51		16
Total	$	44,264	$	3,544	$	3,988	$	293	$	44,113

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2023
Commercial	$	11,968	$	(581)	$	27	$	151	$	11,511
Leases		2,865		774		882		9		2,766
Commercial real estate – investor		10,674		4,569		-		17		15,260
Commercial real estate – owner occupied		15,001		573		-		2		15,576
Construction		1,546		(501)		-		-		1,045
Residential real estate – investor		768		(41)		-		19		746
Residential real estate – owner occupied		2,046		(334)		-		10		1,722
Multifamily		2,453		212		-		-		2,665
HELOC		1,806		(47)		-		29		1,788
Other		353		28		113		45		313
Total	$	49,480	$	4,652	$	1,022	$	282	$	53,392

14

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

At March 31, 2024, our allowance for credit losses (“ACL”) on loans totaled $44.1 million, and our ACL on unfunded commitments, included in other liabilities, totaled $2.7 million.  During the first three months of 2024, we recorded net provision expense of $3.5 million based on historical loss rate updates driven by higher charge offs in commercial real estate-investor, downward risk rating migration, and our assessment of estimated future credit losses. The ACL on loans excludes $2.7 million, $2.7 million and $3.8 million of allowance for unfunded commitments as of March 31, 2024, December 31, 2023, and March 31, 2023, respectively, recorded within other liabilities.  

Generally, the Bank considers a loan to be collateral dependent when, based on current information and events, it is probable that foreclosure could be initiated. Additionally, the Bank will review all loans meeting the criteria for individual analysis, to determine if repayment or satisfaction of the loan is expected through the sale of collateral. This will generally be the case for credits with high loan-to-values. Exceptions to this policy would include loans with guarantors or sponsors that have the means and willingness to support the obligation. Non-accruing loans with an outstanding balance of $500,000 or more are assessed on an individual loan level basis. When a financial asset is deemed collateral-dependent, the level of credit loss is measured by the difference between amortized cost of the financial asset and the fair value of collateral adjusted for estimated cost to sell. The Company had $59.3 million and $63.1 million of collateral dependent loans secured by real estate or business assets as of March 31, 2024, and December 31, 2023, respectively.

The following tables present the collateral dependent loans and the related ACL allocated by segment of loans as of March 31, 2024 and December 31, 2023:

			Accounts								ACL
March 31, 2024	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	-	$	-	$	571	$	1,354	$	1,925	$	1,356
Leases		-		-		-		-		-		-
Commercial real estate – investor		16,128		-		-		-		16,128		3,569
Commercial real estate – owner occupied		30,847		-		-		-		30,847		1,239
Construction		7,119		-		-		-		7,119		-
Residential real estate – investor		409		-		-		-		409		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,373		-		-		-		1,373		-
HELOC		39		-		-		-		39		-
Total	$	57,421	$	-	$	571	$	1,354	$	59,346	$	6,164
			Accounts								ACL
December 31, 2023	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	837	$	797	$	-	$	-	$	1,634	$	2
Leases		-		-		321		-		321		320
Commercial real estate – investor		15,735		-		-		-		15,735		3,656
Commercial real estate – owner occupied		34,894		-		-		-		34,894		3,900
Construction		7,162		-		-		-		7,162		-
Residential real estate – investor		422		-		-		-		422		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,402		-		-		-		1,402		-
HELOC		39		-		-		-		39		-
Total	$	61,997	$	797	$	321	$	-	$	63,115	$	7,878

15

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Aged analysis of past due loans by segments of loans was as follows:

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
March 31, 2024	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	12,429	$	703	$	822	$	13,954	$	782,598	$	796,552	$	748
Leases		1,108		-		401		1,509		424,106		425,615		-
Commercial real estate – investor		434		-		4,966		5,400		1,012,982		1,018,382		-
Commercial real estate – owner occupied		971		3,776		22,899		27,646		754,957		782,603		-
Construction		4,220		-		7,119		11,339		157,835		169,174		-
Residential real estate – investor		-		54		249		303		51,219		51,522		-
Residential real estate – owner occupied		656		233		2,086		2,975		217,248		220,223		-
Multifamily		-		304		534		838		386,641		387,479		-
HELOC		177		237		268		682		98,080		98,762		41
Other		-		-		-		-		19,099		19,099		-
Total	$	19,995	$	5,307	$	39,344	$	64,646	$	3,904,765	$	3,969,411	$	789

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
December 31, 2023	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	982	$	-	$	1,228	$	2,210	$	839,487	$	841,697	$	1,155
Leases		599		-		347		946		397,277		398,223		-
Commercial real estate – investor		1,209		-		6,087		7,296		1,027,128		1,034,424		-
Commercial real estate – owner occupied		2,103		3,726		15,645		21,474		775,064		796,538		-
Construction		2,540		307		7,161		10,008		155,372		165,380		-
Residential real estate – investor		540		579		168		1,287		51,308		52,595		-
Residential real estate – owner occupied		553		125		1,944		2,622		223,626		226,248		-
Multifamily		1,085		-		233		1,318		400,378		401,696		-
HELOC		565		1,396		269		2,230		101,007		103,237		41
Other		-		1		-		1		22,914		22,915		-
Total	$	10,176	$	6,134	$	33,082	$	49,392	$	3,993,561	$	4,042,953	$	1,196

The table presents all nonaccrual loans as of March 31, 2024, and December 31, 2023:

Nonaccrual loan detail	March 31, 2024		With no ACL		December 31, 2023		With no ACL
Commercial	$	1,998	$	644	$	870	$	870
Leases		595		595		639		318
Commercial real estate – investor		16,128		8,568		16,572		8,926
Commercial real estate – owner occupied		30,897		8,271		34,946		8,429
Construction		7,119		7,119		7,162		7,162
Residential real estate – investor		1,299		1,299		1,331		1,331
Residential real estate – owner occupied		3,031		3,031		3,078		3,078
Multifamily		1,959		1,959		1,775		1,775
HELOC		1,298		1,298		1,210		1,210
Other		-		-		-		-
Total	$	64,324	$	32,784	$	67,583	$	33,099

The Company recognized $34,000 of interest on nonaccrual loans during the three months ended March 31, 2024.

16

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Credit Quality Indicators

The Company categorizes loans into credit risk categories based on current financial information, overall debt service coverage, comparison to industry averages, historical payment experience, and current economic trends.  This analysis includes loans with outstanding balances or commitments greater than $50,000 and excludes homogeneous loans such as home equity lines of credit and residential mortgages.  Loans with a classified risk rating are reviewed quarterly regardless of size or loan type.  The Company uses the following definitions for classified risk ratings:

Special Mention.  Loans classified as special mention have a potential weakness that deserves management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan at some future date.

Substandard. Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any.  Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt.  They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected.  The substandard credit quality indicator includes both potential problem loans that are currently performing and nonperforming loans.

Doubtful.  Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

Credits that are not covered by the definitions above are pass credits, which are not considered to be adversely rated.

17

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Credit quality indicators by loan segment and loan origination date at March 31, 2024 were as follows:

	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	10,284	$	313,611	$	125,215	$	28,810	$	10,497	$	19,834	$	252,098	$		$	760,349
Special Mention		-		-		3,598		3,064		111		-		14,187		-		20,960
Substandard		-		-		4,703		178		-		-		10,362		-		15,243
Total commercial		10,284		313,611		133,516		32,052		10,608		19,834		276,647		-		796,552
Leases
Pass		61,834		205,567	$	100,256		36,105		12,450		7,094		-		-		423,306
Special Mention		-		308		380		1,015		-		11		-		-		1,714
Substandard		-		-		392		203		-		-		-		-		595
Total leases		61,834		205,875		101,028		37,323		12,450		7,105		-		-		425,615
Commercial real estate – investor
Pass		46,126		200,397		341,405		170,710		94,342		101,984		20,264		-		975,228
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		1,648		4,128		2,796		5,286		17,065		12,231		-		43,154
Total commercial real estate – investor		46,126		202,045		345,533		173,506		99,628		119,049		32,495		-		1,018,382
Commercial real estate – owner occupied
Pass		7,877		137,719		151,782		185,939		85,511		124,527		1,828		-		695,183
Special Mention		-		1,638		18,249		1,452		3,104		1,710		-		-		26,153
Substandard		-		-		14,647		15,732		13,419		17,469		-		-		61,267
Total commercial real estate – owner occupied		7,877		139,357		184,678		203,123		102,034		143,706		1,828		-		782,603
Construction
Pass		10,236		42,569		77,717		26,818		95		1,747		2,525		-		161,707
Special Mention		-		-		348		-		-		-		-		-		348
Substandard		-		-		7,119		-		-		-		-		-		7,119
Total construction		10,236		42,569		85,184		26,818		95		1,747		2,525		-		169,174
Residential real estate – investor
Pass		1,101		4,925		14,269		8,516		6,137		13,704		1,506		-		50,158
Special Mention		-		-		-		65		-		-		-		-		65
Substandard		-		-		378		-		-		921		-		-		1,299
Total residential real estate – investor		1,101		4,925		14,647		8,581		6,137		14,625		1,506		-		51,522
Residential real estate – owner occupied
Pass		1,397		31,591		40,203		39,818		24,764		78,480		802		-		217,055
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		189		2,979		-		-		3,168
Total residential real estate – owner occupied		1,397		31,591		40,203		39,818		24,953		81,459		802		-		220,223
Multifamily
Pass		1,240		75,556		71,322		117,695		51,661		51,998		566		-		370,038
Special Mention		-		-		164		13,374		311		1,633		-		-		15,482
Substandard		-		-		976		-		214		769		-		-		1,959
Total multifamily		1,240		75,556		72,462		131,069		52,186		54,400		566		-		387,479
HELOC
Pass		725		2,678		2,534		449		1,545		4,297		84,886		-		97,114
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		25		-		41		292		1,290		-		1,648
Total HELOC		725		2,678		2,559		449		1,586		4,589		86,176		-		98,762
Other
Pass		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Total loans
Pass		142,395		1,017,967		926,304		615,889		287,129		403,809		375,744		-		3,769,237
Special Mention		-		1,946		22,739		18,970		3,526		3,354		14,187		-		64,722
Substandard		-		1,648		32,368		18,909		19,149		39,495		23,883		-		135,452
Total loans	$	142,395	$	1,021,561	$	981,411	$	653,768	$	309,804	$	446,658	$	413,814	$	-	$	3,969,411

18

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Credit quality indicators by loan segment and loan origination date at December 31, 2023, were as follows:

	2023		2022		2021		2020		2019		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	318,569	$	136,668	$	35,901	$	11,983	$	18,390	$	3,426	$	298,931	$	1,408	$	825,276
Special Mention		-		2,737		707		171		-		-		4,392		-		8,007
Substandard		-		2,099		146		-		199		-		5,970		-		8,414
Total commercial		318,569		141,504		36,754		12,154		18,589		3,426		309,293		1,408		841,697
Leases
Pass		219,163		113,074	$	42,275		14,663		6,975		1,255		-		-		397,405
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		407		203		-		208		-		-		-		818
Total leases		219,163		113,481		42,478		14,663		7,183		1,255		-		-		398,223
Commercial real estate – investor
Pass		159,654		367,512		218,084		108,384		54,322		63,281		8,122		-		979,359
Special Mention		-		-		11,267		-		-		-		-		-		11,267
Substandard		-		-		838		5,327		15,658		9,648		12,327		-		43,798
Total commercial real estate – investor		159,654		367,512		230,189		113,711		69,980		72,929		20,449		-		1,034,424
Commercial real estate – owner occupied
Pass		124,059		134,383		177,553		103,109		42,839		91,062		33,243		-		706,248
Special Mention		1,650		17,415		9,585		3,128		218		3,681		-		-		35,677
Substandard		-		14,630		18,817		4,571		14,809		1,786		-		-		54,613
Total commercial real estate – owner occupied		125,709		166,428		205,955		110,808		57,866		96,529		33,243		-		796,538
Construction
Pass		42,808		66,513		32,942		100		1,593		1,083		3,186		-		148,225
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		9,993		-		7,162		-		-		17,155
Total construction		42,808		66,513		32,942		10,093		1,593		8,245		3,186		-		165,380
Residential real estate – investor
Pass		5,062		14,434		9,027		6,227		6,508		8,469		1,471		-		51,198
Special Mention		-		-		66		-		-		-		-		-		66
Substandard		-		390		-		-		408		533		-		-		1,331
Total residential real estate – investor		5,062		14,824		9,093		6,227		6,916		9,002		1,471		-		52,595
Residential real estate – owner occupied
Pass		32,574		41,528		40,335		25,322		14,233		68,277		763		-		223,032
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		191		685		2,340		-		-		3,216
Total residential real estate – owner occupied		32,574		41,528		40,335		25,513		14,918		70,617		763		-		226,248
Multifamily
Pass		55,310		79,060		123,834		72,539		12,231		40,825		562		-		384,361
Special Mention		-		168		13,425		322		1,645		-		-		-		15,560
Substandard		-		1,009		-		-		-		766		-		-		1,775
Total multifamily		55,310		80,237		137,259		72,861		13,876		41,591		562		-		401,696
HELOC
Pass		2,735		2,679		490		1,757		1,756		2,995		89,161		-		101,573
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		25		1		41		24		184		1,389		-		1,664
Total HELOC		2,735		2,704		491		1,798		1,780		3,179		90,550		-		103,237
Other
Pass		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Total loans
Pass		963,994		958,129		682,010		344,237		158,932		280,746		450,136		1,408		3,839,592
Special Mention		1,650		20,320		35,050		3,621		1,863		3,681		4,392		-		70,577
Substandard		-		18,560		20,005		20,123		31,991		22,419		19,686		-		132,784
Total loans	$	965,644	$	997,009	$	737,065	$	367,981	$	192,786	$	306,846	$	474,214	$	1,408	$	4,042,953

19

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The gross charge-offs activity by loan type and year of origination for the three months ended March 31, 2024 were as follows:

Three months ended March 31, 2024	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial	$	-		-		-		-		-		15	$	-	$	-	$	15
Commercial real estate – investor		-		-		-		-		16		-		-		-		16
Commercial real estate – owner occupied		-				-		3,853		-		34		-		-		3,887
Other		-		-		-		-		-		70		-		-		70
Total	$	-	$	-	$	-	$	3,853	$	16	$	119		-		-	$	3,988

The Company had $378,000 and $170,000 in residential real estate loans in the process of foreclosure as of March 31, 2024 and December 31, 2023, respectively.  

There were six loans modified during the three-month period ending March 31, 2024, totaling $18.6 million in aggregate, which were experiencing financial difficulty.  There were three loans modified during the three-month period ending March 31, 2023, totaling $2.8 million in aggregate, which were experiencing financial difficulty. There were no modified loans experiencing financial difficulty in payment default as of March 31, 2024 and March 31, 2023.

The following tables present the amortized costs basis of loans at March 31, 2024, and March 31, 2023 that were both experiencing financial difficulty and modified during the period ended March 31, 2024, and March 31, 2023, by class and by type of modification.  The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below.

March 31, 2024	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	247	$	-	$	-	$	247	0.0%
Commercial real estate – investor		-		-		1,958		1,958	0.2%
Commercial real estate – owner occupied		12,244		3,309		854		16,407	2.1%
Total	$	12,491	$	3,309	$	2,812	$	18,612	0.5%

March 31, 2023	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	-	$	979	$	-	$	979	0.1%
Commercial real estate – investor		-		-		1,774		1,774	0.2%
HELOC		20		-		-		20	0.0%
Total	$	20	$	979	$	1,774	$	2,773	0.1%

¹ Payment modifications are either contractual delays in payment or a modification of the payment amount.

20

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The Company closely monitors the performance of loan modifications to borrowers experiencing financial difficulty. The following tables present the performance of loans that have been modified as of March 31, 2024 and March 31, 2023.

March 31, 2024	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	247	$	247
Commercial real estate – investor		-		-		-		-		1,958		1,958
Commercial real estate – owner occupied		-		-		-		-		16,407		16,407
Total	$	-	$	-	$	-	$	-	$	18,612	$	18,612

March 31, 2023	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	979	$	979
Commercial real estate – investor		-		-		-		-		1,774		1,774
HELOC		-		-		-		-		20		20
Total	$	-	$	-	$	-	$	-	$	2,773	$	2,773

The following tables summarize the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the period ended March 31, 2024, and March 31, 2023. The Company had two loans that had a payment modification as of March 31, 2024. One changed to a single payment at maturity and the other had a reduction of monthly payment until maturity; the financial impact of these modifications is immaterial. As of March 31, 2023, there was one loan that had a payment modification to a single payment at maturity.

March 31, 2024	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		-	%		-
Commercial real estate – investor		24.00		-			-
Commercial real estate – owner occupied		5.24		0.15			-
Total		7.20		0.15	%		-

March 31, 2023	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		5.00	%		-
Commercial real estate – investor		8.00		-			7.00
HELOC		24.00		-			-
Total		6.71		5.00	%		7.00

21

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 4 – Other Real Estate Owned

Details related to the activity in the other real estate owned (“OREO”) portfolio, net of valuation reserve, for the periods presented are itemized in the following table:

	Three Months Ended
	March 31,
Other real estate owned	2024		2023
Balance at beginning of period	$	5,123	$	1,561
Property additions, net of acquisition adjustments		-		291
Less:
Proceeds from property disposals, net of participation purchase and gains/losses		-		328
Period valuation write-down		-		269
Balance at end of period	$	5,123	$	1,255

Activity in the valuation allowance was as follows:

	Three Months Ended
	March 31,
	2024		2023
Balance at beginning of period	$	118	$	856
Provision for unrealized losses		-		269
Reductions taken on sales		-		(272)
Balance at end of period	$	118	$	853

Expenses related to OREO, net of lease revenue includes:

	Three Months Ended
	March 31,
	2024		2023
Gain on sales, net	$	-	$	28
Provision for unrealized losses		-		269
Operating expenses		113		9
Less:
Lease revenue		67		-
Net OREO expense	$	46	$	306

Note 5 – Deposits

Major classifications of deposits were as follows:

	March 31, 2024		December 31, 2023
Noninterest bearing demand	$	1,799,927	$	1,834,891
Savings		955,528		971,334
NOW accounts		569,814		565,375
Money market accounts		696,354		671,240
Certificates of deposit of less than $100,000		289,962		266,035
Certificates of deposit of $100,000 through $250,000		205,638		180,289
Certificates of deposit of more than $250,000		91,052		81,582
Total deposits	$	4,608,275	$	4,570,746

22

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 6 – Borrowings

The following table is a summary of borrowings as of March 31, 2024 and December 31, 2023.  Junior subordinated debentures are discussed in more detail in Note 7.

	March 31, 2024		December 31, 2023
Securities sold under repurchase agreements	$	33,546	$	26,470
Other short-term borrowings		220,000		405,000
Junior subordinated debentures1		25,773		25,773
Subordinated debentures		59,403		59,382
Total borrowings	$	338,722	$	516,625

¹ See Note 7: Junior Subordinated Debentures.

The Company enters into deposit sweep transactions where the transaction amounts are secured by pledged securities.  These transactions consistently mature overnight from the transaction date and are governed by sweep repurchase agreements.  All sweep repurchase agreements are treated as financings secured by U.S. government agencies and collateralized mortgage-backed securities, and had a carrying amount of $33.5 million at March 31, 2024, and $26.5 million at December 31, 2023.  The fair value of the pledged collateral was $45.2 million at March 31, 2024, and $45.7 million at December 31, 2023.  At March 31, 2024, there were no customers with secured balances exceeding 10% of stockholders’ equity.

The Company’s borrowings at the FHLBC require the Bank to be a member and invest in the stock of the FHLBC.  Total borrowings are generally limited to the lower of 35% of total assets or 60% of the book value of certain mortgage loans.  As of March 31, 2024, the Bank had $220.0 million in short-term advances outstanding under the FHLBC, and $405.0 million in short-term advances as of December 31, 2023. FHLBC stock held at March 31, 2024 was valued at $13.6 million, and any potential FHLBC advances were collateralized by loans and securities with a principal balance of $1.44 billion, which carried a FHLBC-calculated combined collateral value of $998.9 billion.  The Company had excess collateral of $778.9 million available to secure borrowings at March 31, 2024.

In the second quarter of 2021, we issued $60.0 million in aggregate principal amount of our 3.50% Fixed-to-Floating Rate Subordinated Notes due April 15, 2031 (the “Notes”). The Company used the net proceeds from the offering for general corporate purposes.  The Notes bear interest at a fixed annual rate of 3.50%, from and including the date of issuance to but excluding April 15, 2026, payable semi-annually in arrears.  From and including April 15, 2026 to, but excluding the maturity date or early redemption date, the interest rate will reset quarterly to an interest rate per annum equal to three-month Term Secured Overnight Financing Rate (“SOFR”) (as defined by the Note) plus 273 basis points, payable quarterly in arrears. As of March 31, 2024 and December 31, 2023, we had $59.4 million of subordinated debentures outstanding, net of deferred issuance cost.

The Company issued senior notes in December 2016 with a ten-year maturity, and terms included interest payable semiannually at 5.75% for five years.  Beginning December 31, 2021, the senior debt began to pay interest at a floating rate, with interest payable quarterly at three month LIBOR plus 385 basis points. The notes were redeemable, in whole or in part, at the option of the Company, beginning with the interest payment date on December 31, 2021, and on any floating rate interest payment date thereafter, at a redemption price equal to 100% of the principal amount of the notes plus accrued and unpaid interest.  On June 30, 2023, we redeemed all of the $45.0 million senior notes, at which point the interest rate was 9.39%.  Upon redemption, the related deferred debt issuance costs of $362,000 was also recorded as interest expense, resulting in an effective cost of this debt issuance of 12.85% for the second quarter of 2023.

On February 24, 2020, the Company originated a $20.0 million three-year term note with a correspondent bank. The term note was issued at one-month LIBOR plus 175 basis points, and required principal payments quarterly and interest payments monthly.  This note was included within Notes payable and other borrowings on the Consolidated Balance Sheets, and the remaining $9.0 million balance of the note was paid off on February 24, 2023.  The Company also has an undrawn line of credit of $30.0 million with a correspondent bank to be used for short-term funding needs; advances under this line can be outstanding up to 360 days from the date of issuance.  This line of credit has not been utilized since early 2019.

23

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 7 – Junior Subordinated Debentures

The Company issued $25.0 million of cumulative trust preferred securities through a private placement completed by an unconsolidated subsidiary, Old Second Capital Trust II, in April 2007.  These trust preferred securities mature in 30 years, but subject to regulatory approval, can be called in whole or in part on a quarterly basis commencing June 15, 2017.  The quarterly cash distributions on the securities were fixed at 6.77% through June 15, 2017, and now have a floating rate of 150 basis points over three-month SOFR.  Upon conversion to a floating rate, a cash flow hedge was initiated which resulted in the total interest rate paid on the debt of 4.37% and 4.39% for the quarters ended March 31, 2024 and March 31, 2023, respectively.  The Company issued a $25.8 million subordinated debenture to Old Second Capital Trust II in return for the aggregate net proceeds of this trust preferred offering.  The interest rate and payment frequency on the debenture are equivalent to the cash distribution basis on the trust preferred securities.  

The junior subordinated debentures issued by the Company are disclosed on the Consolidated Balance Sheets, and the related interest expense for each issuance is included in the Consolidated Statements of Income.  As of March 31, 2024 and December 31, 2023, the remaining unamortized debt issuance costs related to the junior subordinated debentures were less than $1,000 and are included as a reduction to the balance of the junior subordinated debentures on the Consolidated Balance Sheets.  The remaining deferred issuance costs on the junior subordinated debentures related to the issuance of Old Second Capital Trust II will be amortized to interest expense over the remainder of the 30-year term of the notes and are included in the Consolidated Statements of Income.

Note 8 – Equity Compensation Plans

Stock-based awards are outstanding under the Company’s 2019 Equity Incentive Plan, as amended and restated (the “2019 Plan”).  The 2019 Plan was originally approved at the May 2019 annual stockholders’ meeting and authorized 600,000 shares, and at the May 2021 annual stockholders’ meeting, the Company obtained stockholder approval to increase the number of shares of common stock authorized for issuance under the 2019 Plan by 1,200,000 shares, from 600,000 shares to 1,800,000 shares.  Following the approval of the 2019 Plan, no further awards will be granted under any other prior plan.  

The 2019 Plan authorizes the granting of qualified stock options, non-qualified stock options, restricted stock, restricted stock units, and stock appreciation rights (“SARs”).  Awards may be granted to selected directors, officers, employees or eligible service providers under the 2019 Plan at the discretion of the Compensation Committee of the Company’s Board of Directors.  As of March 31, 2024, 712,201 shares remained available for issuance under the 2019 Plan.  The Company has granted only restricted stock units under the 2019 Equity Plan.

Generally, restricted stock units granted under the 2019 Plan vest three years from the grant date, but the Compensation Committee of the Company’s Board of Directors has discretionary authority to change the terms of particular awards including the vesting schedule.

Under the 2019 Plan, unless otherwise provided in an award agreement, upon the occurrence of a change in control, all equity awards then held by the participant will become fully exercisable immediately if, and all stock awards and cash incentive awards will become fully earned and vested immediately if, (i) the 2019 Plan is not an obligation of the successor entity following a change in control or (ii) the 2019 Plan is an obligation of the successor entity following a change in control and the participant incurs a termination of service without cause or for good reason following the change in control.  Notwithstanding the immediately preceding sentence, if the vesting of an award is conditioned upon the achievement of performance measures, then such vesting will generally be subject to the following: if, at the time of the change in control, the performance measures are less than 50% attained (pro rata based upon the time of the period through the change in control), the award will become vested and exercisable on a fractional basis with the numerator being equal to the percentage of attainment and the denominator being 50%; and if, at the time of the change in control, the performance measures are at least 50% attained (pro rata based upon the time of the period through the change in control), the award will become fully earned and vested immediately upon the change in control.

Awards of restricted stock under the 2019 Plan generally entitle holders to voting and dividend rights upon grant and are subject to forfeiture until certain restrictions have lapsed including employment for a specific period.  Awards of restricted stock units under the 2019 Plan are also subject to forfeiture until certain restrictions have lapsed including employment for a specific period, but do not entitle holders to voting rights until the restricted period ends and shares are transferred in connection with the units.

24

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

There were 338,235 and 230,399 restricted stock units issued under the 2019 Plan during the three months ended March 31, 2024 and March 31, 2023, respectively.  Compensation expense is recognized over the vesting period of the restricted stock units based on the market value of the award on the issue date.  Total compensation cost that has been recorded for the 2019 Plan was $1.2 million for the three months ended March 31, 2024 and $948,000 for the three months ended March 31, 2023.

A summary of changes in the Company’s unvested restricted awards for the three months ended March 31, 2024, is as follows:

	March 31, 2024
		Weighted
	Restricted	Average
	Stock Shares	Grant Date
	and Units	Fair Value
Unvested at January 1	709,237	$	14.26
Granted	338,235		13.44
Vested	(204,969)		11.32
Forfeited	(3,000)		12.35
Unvested at March 31	839,503	$	14.65

Total unrecognized compensation cost of restricted awards was $6.9 million as of March 31, 2024, which is expected to be recognized over a weighted-average period of 2.19 years.  

Note 9 – Earnings Per Share

The earnings per share, both basic and diluted, are as follows:

	Three Months Ended March 31,
	2024		2023
Basic earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Net income	$	21,312	$	23,607
Basic earnings per share	$	0.48	$	0.53
Diluted earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Dilutive effect of unvested restricted awards 1		765,325		697,480
Diluted average common shares outstanding		45,523,884		45,316,598
Net Income	$	21,312	$	23,607
Diluted earnings per share	$	0.47	$	0.52
1 Includes the common stock equivalents for restricted share rights that are dilutive.

25

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Note 10 – Regulatory & Capital Matters

The Bank is subject to the risk-based capital regulatory guidelines, which include the methodology for calculating the risk-weighted Bank assets, developed by the Office of the Comptroller of the Currency (the “OCC”) and the other bank regulatory agencies.  In connection with the current risk-based capital regulatory guidelines, the Bank’s Board of Directors has established an internal guideline requiring the Bank to maintain a Tier 1 leverage capital ratio at or above eight percent (8%) and a total risk-based capital ratio at or above twelve percent (12%).  At March 31, 2024, the Bank exceeded those thresholds.

At March 31, 2024, the Bank’s Tier 1 capital leverage ratio was 10.89%, an increase of 48 basis points from December 31, 2023, and is above the 8.00% objective.  The Bank’s total capital ratio was 14.03%, an increase of 79 basis points from December 31, 2023, and also above the objective of 12.00%.

Bank holding companies are generally required to maintain minimum levels of capital in accordance with capital guidelines implemented by the Board of Governors of the Federal Reserve System.  The general bank and holding company capital adequacy guidelines are shown in the accompanying table, as are the capital ratios of the Company and the Bank, as of March 31, 2024 and December 31, 2023.

The Basel III Rules are applicable to all banking organizations that are subject to minimum capital requirements, including federal and state banks and savings and loan associations, as well as to bank and savings and loan holding companies, other than “small bank holding companies,” which are generally holding companies with consolidated assets of less than $3.0 billion.  A detailed discussion of the Basel III Rules is included in Part I, Item 1 of the Company’s Form 10-K for the year ended December 31, 2023, under the heading “Supervision and Regulation.”

At March 31, 2024 and December 31, 2023, the Company, on a consolidated basis, exceeded the minimum thresholds to be considered “well capitalized” under current regulatory defined capital ratios.

26

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Capital levels and industry defined regulatory minimum required levels are as follows:

					Minimum Capital				Well Capitalized
					Adequacy with Capital				Under Prompt Corrective
	Actual				Conservation Buffer, if applicable1				Action Provisions2
	Amount		Ratio		Amount		Ratio		Amount		Ratio
March 31, 2024
Common equity tier 1 capital to risk weighted assets
Consolidated	$	566,730	12.02	%	$	330,042	7.00	%		N/A	N/A
Old Second Bank		614,947	13.06			329,604	7.00		$	306,061	6.50	%
Total capital to risk weighted assets
Consolidated		697,211	14.79			494,977	10.50			N/A	N/A
Old Second Bank		660,429	14.03			494,263	10.50			470,726	10.00
Tier 1 capital to risk weighted assets
Consolidated		591,730	12.55			400,773	8.50			N/A	N/A
Old Second Bank		614,947	13.06			400,233	8.50			376,690	8.00
Tier 1 capital to average assets
Consolidated		591,730	10.47			226,067	4.00			N/A	N/A
Old Second Bank		614,947	10.89			225,876	4.00			282,345	5.00
December 31, 2023
Common equity tier 1 capital to risk weighted assets
Consolidated	$	547,721	11.37	%	$	337,207	7.00	%		N/A	N/A
Old Second Bank		592,413	12.32			336,598	7.00		$	312,556	6.50	%
Total capital to risk weighted assets
Consolidated		677,076	14.06			505,640	10.50			N/A	N/A
Old Second Bank		636,768	13.24			504,990	10.50			480,943	10.00
Tier 1 capital to risk weighted assets
Consolidated		572,721	11.89			409,430	8.50			N/A	N/A
Old Second Bank		592,413	12.32			408,727	8.50			384,684	8.00
Tier 1 capital to average assets
Consolidated		572,721	10.06			227,722	4.00			N/A	N/A
Old Second Bank		592,413	10.41			227,632	4.00			284,540	5.00

¹ Amounts are shown inclusive of a capital conservation buffer of 2.50%.

² The prompt corrective action provisions are only applicable at the Bank level. The Bank exceeded the general minimum regulatory requirements to be considered “well capitalized.”

As part of its response to the impact of the COVID-19 pandemic, in the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule that provided banking organizations that adopted the Current Expected Credit Losses (“CECL”) methodology during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five-year transition in total). In connection with our adoption of CECL on January 1, 2020, we elected to utilize the five-year CECL transition.  As of March 31, 2024, the capital measures of the Company exclude $951,000, which is the modified CECL transition adjustment.

27

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Dividend Restrictions

In addition to the above requirements, banking regulations and capital guidelines generally limit the amount of dividends that may be paid by a bank without prior regulatory approval.  Under these regulations, the amount of dividends that may be paid in any calendar year is limited to the current year’s profits, combined with the retained profit of the previous two years, subject to the capital requirements described above.  As of March 31, 2024, the Bank had capacity to pay dividends of $93.7 million to the Company without prior regulatory approval.  Pursuant to the Basel III rules, the Bank must keep a capital conservation buffer of 2.50% above the regulatory minimum capital requirements, which must consist entirely of Common Equity Tier 1 capital in order to avoid additional limitations on capital distributions and certain other payments.

Note 11 – Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.  The fair value hierarchy established by the Company also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.  Three levels of inputs that may be used to measure fair value are:

Level 1:  Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company has the ability to access as of the measurement date.

Level 2:  Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data.

Level 3:  Significant unobservable inputs that reflect a company’s own view about the assumptions that market participants would use in pricing an asset or liability.

There were no transfers between levels at March 31, 2024, however the Company reclassified one states and political subdivisions security to an asset-backed security in all periods presented. During the three-month period ended March 31, 2023, $14.9 million of asset-backed securities and $6.8 million of collateralized mortgage obligations were transferred to Level 2 from Level 3.

The majority of securities available-for-sale are valued by external pricing services or dealer market participants and are classified in Level 2 of the fair value hierarchy.  Both market and income valuation approaches are utilized.  Quarterly, the Company evaluates the methodologies used by the external pricing services or dealer market participants to develop the fair values to determine whether the results of the valuations are representative of an exit price in the Company’s principal markets and an appropriate representation of fair value.  The Company uses the following methods and significant assumptions to estimate fair value:

● Government-sponsored agency debt securities are primarily priced using available market information through processes such as benchmark spreads, market valuations of like securities, like securities groupings and matrix pricing.

● Other government-sponsored agency securities, Mortgage Backed Securities (“MBS”) and some of the actively traded real estate mortgage investment conduits and collateralized mortgage obligations are priced using available market information including benchmark yields, prepayment speeds, spreads, volatility of similar securities and trade date.

● State and political subdivisions are largely grouped by characteristics (e.g., geographical data and source of revenue in trade dissemination systems).  Because some securities are not traded daily and due to other grouping limitations, active market quotes are often obtained using benchmarking for like securities.

● Auction rate securities are priced using market spreads, cash flows, prepayment speeds, and loss analytics.  Therefore, the valuations of auction rate asset-backed securities are considered Level 2 valuations.

● Asset-backed collateralized loan obligations were priced using data from a pricing matrix supported by our bond accounting service provider and are therefore considered Level 2 valuations.

● Annually every security holding is priced by a pricing service independent of the regular and recurring pricing services used.  The independent service provides a measurement to indicate if the price assigned by the regular service is within or outside of a reasonable range.  Management reviews this report and applies judgment in adjusting calculations at year end related to securities pricing.

28

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

● Residential mortgage loans available for sale in the secondary market are carried at fair market value.  The fair value of loans held-for-sale is determined using quoted secondary market prices.

● Lending related commitments to fund certain residential mortgage loans, e.g., residential mortgage loans with locked interest rates to be sold in the secondary market and forward commitments for the future delivery of mortgage loans to third party investors, as well as forward commitments for future delivery of MBS, are considered derivatives.  Fair values are estimated based on observable changes in mortgage interest rates including prices for MBS from the date of the commitment and do not typically involve significant judgments by management.

● The fair value of mortgage servicing rights is based on a valuation model that calculates the present value of estimated net servicing income.  The valuation model incorporates assumptions that market participants would use in estimating future net servicing income to derive the resultant value.  The Company is able to compare the valuation model inputs, such as the discount rate, prepayment speeds, weighted average delinquency and foreclosure/bankruptcy rates to widely available published industry data for reasonableness.

● Interest rate swap positions, both assets and liabilities, are based on valuation pricing models using an income approach reflecting readily observable market parameters such as interest rate yield curves.

● The fair value of individually evaluated loans with specific allocations of the allowance for credit losses is essentially based on recent real estate appraisals or the fair value of the collateralized asset.  These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach.  Adjustments are made in the appraisal process by the appraisers to reflect differences between the available comparable sales and income data.  Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value.

● Nonrecurring adjustments to certain commercial and residential real estate properties classified as other real estate owned (“OREO”) are measured at fair value, less costs to sell.  Fair values are based on third party appraisals of the property, resulting in a Level 3 classification, or an executed pending sales contract.  In cases where the carrying amount exceeds the fair value, less costs to sell, a valuation loss is recognized.

Assets and Liabilities Measured at Fair Value on a Recurring Basis:

The tables below present the balance of assets and liabilities at March 31, 2024 and December 31, 2023, respectively, measured by the Company at fair value on a recurring basis:

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	171,000	$	-	$	-	$	171,000
U.S. government agencies		-		56,979		-		56,979
U.S. government agencies mortgage-backed		-		101,075		-		101,075
States and political subdivisions		-		209,839		12,903		222,742
Collateralized mortgage obligations		-		379,603		-		379,603
Asset-backed securities		-		64,222		2,485		66,707
Collateralized loan obligations		-		170,691		-		170,691
Loans held-for-sale		-		1,072		-		1,072
Mortgage servicing rights		-		-		10,564		10,564
Interest rate swap agreements, including risk participation agreement		-		6,001		-		6,001
Mortgage banking derivatives		-		49		-		49
Total	$	171,000	$	989,531	$	25,952	$	1,186,483
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,917	$	-	$	8,917
Total	$	-	$	8,917	$	-	$	8,917

29

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	169,574	$	-	$	-	$	169,574
U.S. government agencies		-		56,959		-		56,959
U.S. government agencies mortgage-backed		-		106,370		-		106,370
States and political subdivisions		-		214,006		13,059		227,065
Collateralized mortgage obligations		-		392,544		-		392,544
Asset-backed securities		-		66,166		2,270		68,436
Collateralized loan obligations		-		171,881		-		171,881
Loans held-for-sale		-		1,322		-		1,322
Mortgage servicing rights		-		-		10,344		10,344
Interest rate swap agreements		-		5,391		-		5,391
Mortgage banking derivatives		-		(10)		-		(10)
Total	$	169,574	$	1,014,629	$	25,673	$	1,209,876
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,324	$	-	$	8,324
Total	$	-	$	8,324	$	-	$	8,324

The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are as follows:

		Three Months Ended March 31, 2024
	Securities available-for-sale
			States and		Mortgage
	Asset-backed		Political		Servicing
	Securities		Subdivisions		Rights
Beginning balance January 1, 2024	$	2,270	$	13,059	$	10,344
Transfers out of Level 3		-		-		-
Total gains or losses
Included in earnings		-		(33)		172
Included in other comprehensive income		(29)		(89)		-
Purchases, issuances, sales, and settlements
Purchases		259		-		-
Issuances		-		-		126
Settlements		(15)		(34)		(78)
Ending balance March 31, 2024	$	2,485	$	12,903	$	10,564

30

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

		Three Months Ended March 31, 2023
		Securities available-for-sale
			Collateralized		States and		Mortgage
	Asset-backed		Mortgage		Political		Servicing
	Securities		Obligations		Subdivisions		Rights
Beginning balance January 1, 2023	$	16,741	$	6,770	$	12,501	$	11,189
Transfers into Level 3		-		-		-		-
Transfers out of Level 3		(14,885)		(6,764)		-		-
Total gains or losses
Included in earnings		(11)		-		(34)		(471)
Included in other comprehensive income		219		(6)		430		-
Purchases, issuances, sales, and settlements
Purchases		406		-		-		-
Issuances		-		-		-		120
Settlements		(355)		-		(33)		(54)
Ending balance March 31, 2023	$	2,115	$	-	$	12,864	$	10,784

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as of March 31, 2024:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	12,903	Discounted Cash Flow	Discount Rate	3.2 – 3.7%	3.5	%
				Liquidity Premium	0.5 – 0.5%	0.5	%
Asset-backed securities	$	2,485	Discounted Cash Flow	Discount Rate	5.5 - 5.5%	5.5	%
Mortgage servicing rights	$	10,564	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.2 – 31.5%	6.1	%

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as December 31, 2023:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	13,059	Discounted Cash Flow	Discount Rate	3.2– 5.4%	4.7	%
				Liquidity Premium	0.5 - 0.5%	0.5	%
Asset-backed securities	$	2,270	Discounted Cash Flow	Discount Rate	5.6 - 5.6%	5.6	%
Mortgage servicing rights	$	10,344	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.1 - 33.0%	6.6	%

31

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis:

The Company may be required, from time to time, to measure certain other assets at fair value on a nonrecurring basis in accordance with GAAP.  These assets consist of individually evaluated loans and OREO.  For assets measured at fair value on a nonrecurring basis at March 31, 2024 and December 31, 2023, respectively, the following tables provide the level of valuation assumptions used to determine each valuation and the carrying value of the related assets:

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	53,182	$	53,182
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	58,305	$	58,305

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $59.3 million and a valuation allowance of $6.2 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $4.9 million for the three months ended March 31, 2024.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at March 31, 2024, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	66,180	$	66,180
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	71,303	$	71,303

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $77.3 million and a valuation allowance of $11.1 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $6.5 million for the year December 31, 2023.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at December 31, 2023, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

The Company has estimated the fair values of these assets based primarily on Level 3 inputs.  OREO and individually evaluated loans are generally valued using the fair value of collateral provided by third party appraisals.  These valuations include assumptions related to cash flow projections, discount rates, and recent comparable sales.  The numerical ranges of unobservable inputs for these valuation assumptions are not meaningful.

Note 12 – Fair Values of Financial Instruments

The estimated fair values approximate carrying amount for all items except those described in the following table.  Securities available-for-sale fair values are based upon market prices or dealer quotes, and if no such information is available, on the rate and term of the security.  The carrying value of FHLBC stock approximates fair value as the stock is nonmarketable and can only be sold to the FHLBC or another member institution at par. At March 31, 2024 and December 31, 2023, the fair values of loans are estimated on an exit price basis incorporating discounts for credit, liquidity and marketability factors.  The fair value of time deposits was estimated using discounted future cash flows at current rates offered for deposits of similar remaining maturities.  The fair values of borrowings were estimated based on interest rates available to the Company for debt with similar terms and remaining maturities.  The fair value of off balance sheet volume was not considered material.

32

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The carrying amount and estimated fair values of financial instruments were as follows:

	March 31, 2024
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	48,841	$	48,841	$	48,841	$	-	$	-
Interest earning deposits with financial institutions		49,253		49,253		49,253		-		-
Securities available-for-sale		1,168,797		1,168,797		171,000		982,409		15,388
FHLBC and FRBC stock		28,518		28,518		-		28,518		-
Loans held-for-sale		1,072		1,072		-		1,072		-
Net loans		3,925,298		3,841,563		-		-		3,841,563
Mortgage servicing rights		10,564		10,564						10,564
Interest rate swap agreements		5,947		5,947		-		5,947		-
Interest rate lock commitments and forward contracts		49		49		-		49		-
Interest receivable on securities and loans		25,735		25,735		-		25,735		-
Financial liabilities:
Noninterest bearing deposits	$	1,799,927	$	1,799,927	$	1,799,927	$	-	$	-
Interest bearing deposits		2,808,348		2,798,825		-		2,798,825		-
Securities sold under repurchase agreements		33,546		33,546		-		33,546		-
Other short-term borrowings		220,000		220,000		-		220,000		-
Junior subordinated debentures		25,773		20,619		-		20,619		-
Subordinated debentures		59,403		49,797		-		49,797		-
Interest rate swap agreements		8,917		8,917		-		8,917		-
Interest payable on deposits and borrowings		3,617		3,617		-		3,617		-

33

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

	December 31, 2023
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	55,534	$	55,534	$	55,534	$	-	$	-
Interest earning deposits with financial institutions		44,611		44,611		44,611		-		-
Securities available-for-sale		1,192,829		1,192,829		169,574		1,007,926		15,329
FHLBC and FRBC stock		33,355		33,355		-		33,355		-
Loans held-for-sale		1,322		1,322		-		1,322		-
Net loans		3,998,689		3,876,381		-		-		3,876,381
Mortgage servicing rights		10,344		10,344						10,344
Interest rate swap agreements		5,302		5,302		-		5,302		-
Interest rate lock commitments and forward contracts		(10)		(10)		-		(10)		-
Interest receivable on securities and loans		27,159		27,159		-		27,159		-
Financial liabilities:
Noninterest bearing deposits	$	1,834,891	$	1,834,891	$	1,834,891	$	-	$	-
Interest bearing deposits		2,735,855		2,726,223		-		2,726,223		-
Securities sold under repurchase agreements		26,470		26,470		-		26,470		-
Junior subordinated debentures		405,000		405,000		-		405,000		-
Subordinated debentures		25,773		20,361		-		20,361		-
Senior notes		59,382		47,982				47,982
Interest rate swap agreements		8,234		8,324		-		8,324		-
Interest payable on deposits and borrowings		2,962		2,962		-		2,962		-

Note 13 – Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk

Risk Management Objective of Using Derivatives

The Company is exposed to certain risk arising from both its business operations and economic conditions.  The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments.  Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates.  The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s loan portfolio.  

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. The aggregate fair value of the swaps is recorded in other assets or other liabilities with changes in fair value recorded in other comprehensive income, net of tax. The amount included in other comprehensive income would be reclassified to current earnings should all or a portion of the hedge no longer be considered effective. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in accumulated other comprehensive income and subsequently reclassified into interest income or interest expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest income or expense as interest payments are received on the variable rate loan pools or paid on the Company’s fixed-rate borrowings.

34

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Interest rate swaps with notional amounts totaling $300.0 million as of March 31, 2024, and December 31, 2023, were designated as cash flow hedges of certain variable rate commercial and commercial real estate loan pools. Each of these hedges were executed to pay variable and receive fixed rate cash flows. Each of these hedges was determined to be effective during all periods presented and the Company expects the hedges to remain effective during the remaining terms of the swaps.

An interest rate swap with a notional amount of $25.8 million as of March 31, 2024 and December 31, 2023, is designated as a cash flow hedge of junior subordinated debentures and was executed to pay fixed and receive variable rate cash flows. The hedge was determined to be effective during all periods presented and the Company expects the hedge to remain effective during the remaining terms of the swap.

During the next twelve months, the Company estimates that an additional $5.5 million will be reclassified as an increase to interest income and an additional $609,000 will be reclassified as an increase to interest expense.

Non-designated Hedges

Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. The notional amounts of interest rate swaps with its loan customers as of March 31, 2024 and December 31, 2023 were $107.0 million and $104.8 million, respectively. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings.

At March 31, 2024 and December 31, 2023, the Company had $6.6 million and $7.3 million of cash collateral pledged with two correspondent financial institutions, respectively. The Company held $5.7 million and $4.1 million of cash pledged from one correspondent financial institution to support the interest rate swap activity during the periods presented, respectively. No investment securities were required to be pledged to any correspondent financial institution during 2024 through March 31, 2024, or during 2023. The Company offsets derivative assets and liabilities that are subject to a master netting arrangement.

The Company also grants mortgage loan interest rate lock commitments to borrowers, subject to normal loan underwriting standards. The interest rate risk associated with these loan interest rate lock commitments is managed with contracts for future deliveries of loans as well as selling forward mortgage-backed securities contracts. Loan interest rate lock commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The notional amount of these commitments at March 31, 2024 and December 31, 2023 was $9.5 million and $8.4 million, respectively. Commitments to originate residential mortgage loans held-for-sale and forward commitments to sell residential mortgage loans or forward MBS contracts are considered derivative instruments and changes in the fair value are recorded to mortgage banking revenue. Fair values are estimated based on observable changes in mortgage interest rates including mortgage-backed securities prices from the date of the commitment.

35

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of March 31, 2024 and December 31, 2023.

Fair Value of Derivative Instruments

			March 31, 2024
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	3,361	Other Liabilities	6,331
Total derivatives designated as hedging instruments				3,361		6,331
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	16	106,958	Other Assets	2,586	Other Liabilities	2,586
Interest rate lock commitments and forward contracts	38	9,487	Other Assets	49	Other Liabilities	-
Other contracts	4	46,687	Other Assets	54	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,689		2,586
			December 31, 2023
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	2,576	Other Liabilities	5,598
Total derivatives designated as hedging instruments				2,576		5,598
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	17	104,777	Other Assets	2,726	Other Liabilities	2,726
Interest rate lock commitments and forward contracts	24	8,375	Other Assets	(10)	Other Liabilities	-
Other contracts	4	44,790	Other Assets	89	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,805		2,726

Disclosure of the Effect of Fair Value and Cash Flow Hedge Accounting

The fair value and cash flow hedge accounting related to derivatives covered under ASC Subtopic 815-20 impacted Accumulated Other Comprehensive Income (“AOCI”) and the Income Statement.  The loss recognized in AOCI on derivatives totaled $2.1 million as of March 31, 2024, and $3.1 million as of March 31, 2023.  The amount of the loss reclassified from AOCI to net interest income on the income statement was $1.6 million for the three months ended March 31, 2024 and $1.0 million for the three months ended March 31, 2023.  

Credit-risk-related Contingent Features

For derivative transactions involving counterparties who are lending customers of the Company, the derivative credit exposure is managed through the normal credit review and monitoring process, which may include collateralization, financial covenants and/or financial guarantees of affiliated parties.  Agreements with such customers require that losses associated with derivative transactions receive payment priority from any funds recovered should a customer default and ultimate disposition of collateral or guarantees occur.

Credit exposure to broker/dealer counterparties is managed through agreements with each derivative counterparty that require collateralization of fair value gains owed by such counterparties.  Some small degree of credit exposure exists due to timing differences between when a gain may occur and the subsequent point in time that collateral is delivered to secure that gain.  This is monitored by the Company and procedures are in place to minimize this exposure.  Such agreements also require the Company to collateralize counterparties in circumstances wherein the fair value of the derivatives result in loss to the Company.

36

Old Second Bancorp, Inc. and Subsidiaries

Notes to Consolidated Financial Statements

(Dollar amounts in thousands, except per share data, unaudited)

Other provisions of such agreements include the definition of certain events that may lead to the declaration of default and/or the early termination of the derivative transaction(s):

● If the Company either defaults or is capable of being declared in default on any of its indebtedness (exclusive of deposit obligations), then the Company could also be declared in default on its derivative obligations.

● If a merger occurs that materially changes the Company's creditworthiness in an adverse manner.

● If certain specified adverse regulatory actions occur, such as the issuance of a Cease and Desist Order, or citations for actions considered Unsafe and Unsound or that may lead to the termination of deposit insurance coverage by the FDIC.

The Bank also issues letters of credit, which are conditional commitments that guarantee the performance of a customer to a third party.  The credit risk involved and collateral obtained in issuing letters of credit are essentially the same as that involved in extending loan commitments to our customers.  In addition to customer related commitments, the Company is responsible for letters of credit commitments that relate to properties held in OREO.  The following table represents the Company’s contractual commitments due to letters of credit as of March 31, 2024, and December 31, 2023.

The following table is a summary of letter of credit commitments:

	March 31, 2024						December 31, 2023
	Fixed		Variable		Total		Fixed		Variable		Total
Letters of credit:
Borrower:
Financial standby	$	229	$	17,276	$	17,505	$	173	$	16,621	$	16,794
Performance standby		562		12,344		12,906		562		13,689		14,251
		791		29,620		30,411		735		30,310		31,045
Non-borrower:
Performance standby		-		67		67		-		67		67
Total letters of credit	$	791	$	29,687	$	30,478	$	735	$	30,377	$	31,112
Unused loan commitments:	$	148,769	$	629,544	$	778,313	$	140,305	$	694,960	$	835,265

As of March 31, 2024, the Company evaluated current market conditions, including any impacts related to market interest rate changes and unused line of credit utilization trends during the first quarter of 2024, and based on that analysis under the CECL methodology, the Company determined credit losses related to unfunded commitments totaled $2.7 million.  The resultant decrease in the ACL for unfunded commitments of $44,000 for the first quarter of 2024, compared to the prior quarter end, is primarily related adjustments to historical benchmark assumptions, such as the funding rates and the period used to forecast those rates within the ACL calculation.  The Company will continue to assess the credit risk at least quarterly, and adjust the allowance for unfunded commitments, which is carried within other liabilities on our Consolidated Balance Sheets, as needed, with the appropriate offsetting entry to the provision for credit losses on our Consolidated Statements of Income.

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Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

The following discussion provides additional information regarding our operations for the three months ended March 31, 2024, compared to the three months ended March 31, 2023, and our financial condition at March 31, 2024, compared to December 31, 2023.  This discussion should be read in conjunction with our consolidated financial statements as well as the financial and statistical data appearing elsewhere in this report and our Form 10-K for the year ended December 31, 2023.  The results of operations for the three months ended March 31, 2024, are not necessarily indicative of future results.  Dollar amounts presented in the following tables are in thousands, except per share data, and March 31, 2024 and 2023 amounts are unaudited.

In this report, unless the context suggests otherwise, references to the “Company,” “we,” “us,” and “our” mean the combined business of Old Second Bancorp, Inc. and its subsidiary bank, Old Second National Bank (the “Bank”).

We have made, and will continue to make, various forward-looking statements with respect to financial and business matters. Comments regarding our business that are not historical facts are considered forward-looking statements that involve inherent risks and uncertainties. Actual results may differ materially from those contained in these forward-looking statements. For additional information regarding our cautionary disclosures, see the “Cautionary Note Regarding Forward-Looking Statements” on page 3 of this report.

Business Overview

The Company is a bank holding company headquartered in Aurora, Illinois. Through our wholly-owned subsidiary bank, Old Second National Bank, a national banking organization also headquartered in Aurora, Illinois, we offer a wide range of financial services through our 48 banking centers located in Cook, DeKalb, DuPage, Kane, Kendall, LaSalle and Will counties in Illinois.  These banking centers offer access to a full range of traditional retail and commercial banking services including treasury management operations as well as fiduciary and wealth management services.  We focus our business on establishing and maintaining relationships with our clients while maintaining a commitment to provide for the financial services needs of the communities in which we operate.  We emphasize relationships with individual customers as well as small to medium-sized businesses throughout our market area.  We also have extensive wealth management services, which includes a registered investment advisory platform in addition to trust administration and trust services related to personal and corporate trusts and employee benefit plan administration services.

Our results of operations depend generally on net interest income, which is the difference between interest income from interest-earning assets and interest expense on interest-bearing liabilities. Net interest income is affected by regulatory, economic and competitive factors that influence interest rates, loan demand and deposit flows. In addition, we are subject to interest rate risk to the degree that our interest-earning assets mature or reprice at different times, or at different speeds, than our interest-bearing liabilities. Our results of operations are also affected by noninterest income, such as service charges, wealth management fees, loan fees, gains from the sale of newly originated loans, gains or losses on investments and certain other noninterest related items. Our principal operating expenses, aside from interest expense, consist of compensation and employee benefits, occupancy costs, professional fees, data processing expenses and provision for credit losses.

We are significantly impacted by prevailing economic conditions, including federal monetary and fiscal policies, and federal regulations of financial institutions. Deposit balances are influenced by numerous factors such as competing investments, the level of income and the personal rate of savings within our market areas. Factors influencing lending activities include the demand for housing and the interest rate pricing competition from other lending institutions.

As of March 31, 2024, all of our capital ratios were in excess of all regulatory requirements. While we believe that we have sufficient capital to withstand an extended economic recession, our reported and regulatory capital ratios could be adversely impacted by credit losses.

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Financial Overview

Net income for the first quarter of 2024 was $21.3 million, or $0.47 per diluted share, compared to $23.6 million, or $0.52 per diluted share, for the first quarter of 2023. The decrease was primarily due to a reduction in net interest and dividend income from contraction in our securities portfolio as well as higher market rates and increased short-term borrowing, which resulted in a $7.5 million increase to interest expense. Partially offsetting these changes was growth in loan related income due to higher market interest rates in the first quarter of 2024 compared to the like quarter in 2023.  Noninterest income increased in the first quarter of 2024, compared to the like quarter of 2023, as a result of a reduction in net losses on security sales, growth in mortgage banking revenues, and an increase in the cash surrender value of BOLI.  An increase was also noted in noninterest expense for the current quarter, primarily due to higher salaries and employee benefits. Adjusted net income, a non-GAAP financial measure that excludes certain nonrecurring items, as applicable, was $21.3 million for the first quarter of 2024, compared to $19.1 million for the fourth quarter of 2023, and $23.4 million for the first quarter of 2023. See the discussion entitled “Non-GAAP Financial Measures” on page 40, as well as the table below, which provides a reconciliation of this non-GAAP measure to the most comparable GAAP equivalents.

	Quarters Ended
	March 31,		December 31,		March 31,
	2024		2023		2023
Net Income
Income before income taxes (GAAP)	$	28,543	$	24,938	$	32,013
Pre-tax income adjustments:
Litigation related expenses		-		1,200		-
Losses/(gains) on branch sales, net		-		19		(306)
Adjusted net income before taxes		28,543		26,157		31,707
Taxes on adjusted net income		7,231		7,041		8,326
Adjusted net income (non-GAAP)	$	21,312	$	19,116	$	23,381
Basic earnings per share (GAAP)	$	0.48	$	0.40	$	0.53
Diluted earnings per share (GAAP)		0.47		0.40		0.52
Adjusted basic earnings per share (non-GAAP)		0.48		0.43		0.52
Adjusted diluted earnings per share (non-GAAP)		0.47		0.42		0.52

The following provides an overview of some of the factors impacting our financial performance for the three month period ended March 31, 2024, compared to the like period ended March 31, 2023:

● Net interest and dividend income was $59.8 million for the first quarter of 2024, compared to $64.1 million for the first quarter of 2023. The reduction in interest and dividend income in the first quarter of 2024 was primarily due to higher borrowing costs, partially offset by higher loan yields.

● We recorded a net provision for credit losses of $3.5 million in the first quarter of 2024, driven by a $3.5 million increase in the allowance for credit losses on loans based on increased historical loss rate updates given current quarter charge-offs, our assessment of nonperforming loan metrics and trends, downward risk rating migration, and estimated future credit losses, net of a reversal of $44,000 in our allowance for unfunded commitments based on an adjustment of historical benchmark assumptions, such as funding rates and the period used to forecast those rates, within the ACL calculation.  We recorded a net provision for credit loss of $3.5 million in the first quarter of 2023.

● Noninterest income was $10.5 million for the first quarter of 2024, compared to $7.4 million for the first quarter of 2023.  Contributing to the increase were security gains of $1,000 due to strategic sales in the first quarter of 2024, compared to losses on the sale of securities of $1.7 million in the first quarter of 2023.  Also contributing to the growth in noninterest income was a $291,000 increase in wealth management income, a $590,000 increase in mortgage banking revenue and a $930,000 increase in the cash surrender value of BOLI. These increases were partially offset by a decrease of $459,000 in other income primarily due to a one-time vendor credit received in the first quarter of 2023; no like credit was received in 2024.

39

● Noninterest expense was $38.2 million for the first quarter of 2024, compared to $35.9 million for the first quarter of 2023, an increase of $2.3 million, or 6.5%.  Contributing to the increase in noninterest expense in the first quarter of 2024 was higher salaries and employee benefits as well as increases in occupancy furniture and equipment and computer and data processing expenses. Partially offsetting the increase in noninterest expense was a reduction in consulting & management fees and as well as OREO valuation reserve expense, which is included in other real estate expense, net.

● We had a provision for income tax expense of $7.2 million for the first quarter of 2024, compared to a provision for income tax expense of $8.4 million for the first quarter of 2023. The effective tax rate for these two periods was 25.3% and 26.3%, respectively.

● Our community-focused banking franchise experienced a decrease of $73.5 million in total loans in the first quarter of 2024, compared to the year ended December 31, 2023, and a decrease of $33.9 million in total loans compared to the first quarter of 2023.  We believe we are positioned for loan growth in 2024, though likely at a slower pace than in recent years, as we continue to serve our customers’ needs in a competitive economic environment. We continue to seek to provide value to our customers and the communities in which we operate, by executing on growth opportunities in our local markets and developing new banking relationships, while seeking to ensure the safety and soundness of our Bank, our customers, and our employees.

● Nonaccrual loans decreased $3.3 million as of March 31, 2024, compared to December 31, 2023, but increased $763,000 compared to March 31, 2023. The reduction in nonaccrual loans in the first quarter of 2024, compared to the prior quarter, was primarily due to a $3.9 million partial charge-off on a large healthcare loan.  The increase in nonaccrual loans year over year is due to various downgrades in the last twelve months, primarily related to CRE-Owner Occupied and CRE-Investor portfolios, the majority of which are office and healthcare loans. Nonperforming loans as a percent of total loans was 1.6% as of March 31, 2024, compared to 1.7% as of December 31, 2023, and 1.6% as of March 31, 2023.  Classified assets increased to $140.6 million as of March 31, 2024, which is $2.7 million, or 1.9% more than December 31, 2023, and $14.0 million, or 11.1%, more than March 31, 2023.

Critical Accounting Estimates

Our consolidated financial statements are prepared based on the application of accounting policies in accordance with generally accepted accounting principles (“GAAP”) and follow general practices within the banking industry.  These policies require the reliance on estimates and assumptions, which may prove inaccurate or are subject to variations.  These estimates, assumptions, and judgments are based on information available as of the date of the consolidated financial statements.  Future changes in information may affect these estimates, assumptions, and judgments, which, in turn, may affect amounts reported in the consolidated financial statements.  Changes in underlying factors, assumptions, or estimates could have a material impact on our future financial condition and results of operations.  

Of the significant accounting policies used in the preparation of our consolidated financial statements, we have identified certain items as critical accounting policies based on the associated estimates, assumptions, judgments and complexity. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Estimates” in our Annual Report on Form 10-K for the year ended December 31, 2023. There have been no material changes to our critical accounting policies or the estimates made pursuant to those policies during the most recent quarter from those disclosed in our 2023 Annual Report in Form 10-K.

Non-GAAP Financial Measures

This report contains references to financial measures that are not defined in GAAP. Such non-GAAP financial measures include the presentation of net interest income and net interest margin on a tax equivalent (“TE”) basis, adjusted net income, adjusted basic and diluted earnings per share, our adjusted efficiency ratio, and our tangible common equity to tangible assets ratio.  Management believes that the presentation of these non-GAAP financial measures (a) provides important supplemental information that contributes to a proper understanding of our operating performance, (b) enables a more complete understanding of factors and trends affecting our business, and (c) allows investors to evaluate our performance in a manner similar to management, the financial services industry, bank stock analysts, and bank regulators. Management uses non-GAAP measures as follows: in the preparation of our operating budgets, monthly financial performance reporting, and in our presentation of our performance to investors.  However, we acknowledge that these non-GAAP financial measures have a number of limitations. Limitations associated with non-GAAP financial measures include the risk that persons might disagree as to the appropriateness of items comprising these measures and that different companies might calculate these measures differently.  These measures should not be considered an alternative to our GAAP results.  A reconciliation of non-GAAP financial measures to the most directly comparable GAAP financial measures is presented below or alongside the first instance where each non-GAAP financial measure is used.

40

Results of Operations

Overview

Three months ended March 31, 2024 and 2023

Our income before taxes was $28.5 million in the first quarter of 2024 compared to $32.0 million in the first quarter of 2023.  This decrease in pretax income was primarily due to a $4.3 million decrease in net interest and dividend income. Income before taxes was positively impacted by a $3.2 million increase in noninterest income, primarily due to $1,000 of security gains, net, in the first quarter of 2024 compared to $1.7 million of security losses, net, in the first quarter of 2023 as well as a $590,000 increase in mortgage banking income. Income before taxes was negatively impacted by a $2.3 million increase in noninterest expense primarily due to a $2.1 million increase in salary and employee benefits expense in the first quarter of 2024. Our net income was $21.3 million, or $0.47 per diluted share, for the first quarter of 2024, compared to net income of $23.6 million, or $0.52 per diluted share, for the first quarter of 2023. The Bank remains well positioned to navigate uncertain macroeconomics; we have mitigated interest rate risk, controlled expenses in an inflationary environment, and actively managed daily liquidity.  Furthermore, we continue to possess strong liquidity metrics and an outsized securities portfolio for funding needs.

Net interest and dividend income was $59.8 million in the first quarter of 2024, compared to $64.1 million in the first quarter of 2023.  The $4.3 million decrease was driven by an increase in interest expense in the first quarter of 2024, compared to the first quarter of 2023, primarily due to a rise in deposit interest rates and borrowing costs. Decreases in our securities portfolio also contributed to the decrease in net interest and dividend income during the first quarter of 2024. Partially offsetting the decrease during the first quarter of 2024 compared to the like quarter a year ago was growth in our loan related income due to the effect of higher market interest rates on our loan portfolios.

Net Interest Income

Net interest income, which is our primary source of earnings, is the difference between interest income earned on interest-earning assets, such as loans and investment securities, as well as accretion income on purchased loans, and interest incurred on interest-bearing liabilities, such as deposits and borrowings.  Net interest income depends upon the relative mix of interest-earning assets and interest-bearing liabilities, the ratio of interest-earning assets to total assets and of interest-bearing liabilities to total funding sources, and movements in market interest rates.  Our net interest income can be significantly influenced by a variety of factors, including overall loan demand, economic conditions, credit risk, the amount of nonearning assets including nonperforming loans and OREO, the amounts of and rates at which assets and liabilities reprice, variances in prepayment of loans and securities, early withdrawal of deposits, exercise of call options on borrowings or securities, a general rise or decline in interest rates, changes in the slope of the yield-curve, and balance sheet growth or contraction.

Three months ended March 31, 2024 and 2023

The increased yield of six basis points on interest earning assets compared to the linked period was driven by repricing within the existing loan portfolios, and, to a lesser extent, the growth in the average balance of loans over the quarter. In addition, rates paid on FHLB dividends increased quarter over linked quarter. Changes in the market interest rate environment impact earning assets at varying intervals depending on the repricing timeline of loans, as well as the securities maturity, paydown and purchase activities.

The year over year increase of 42 basis points on interest earning assets was primarily driven by significant increases to benchmark interest rates over the past twelve months, primarily impacting variable rate loans. This increase was partially offset by the reduction in securities available for sale income during the quarter ended March 31, 2024, compared to the prior quarter and year over year quarter, as both security volumes and rates decreased.  

Average balances of interest-bearing deposit accounts have increased steadily since the fourth quarter of 2023 through the first quarter of 2024, from $2.74 billion to $2.76 billion, as time deposits increased due to CD rate specials, partially offset by reductions in other deposit categories as customers sought higher yielding products. We have continued to control the cost of funds over the periods reflected, with the average rate of overall interest-bearing deposits increasing to 118 basis points for the quarter ended March 31, 2024, from 89 basis points for the quarter ended December 31, 2023, and from 25 basis points for the quarter ended March 31, 2023. A 24 basis point increase in the cost of money market funds for the quarter ended March 31, 2024 compared to prior linked quarter, and a 110 basis point increase compared to the prior year like quarter were both due to select deposit account exception pricing, and drove a significant portion of the overall increase.  Average rates paid on time deposits for the quarter ended March 31, 2024 increased by 65 basis points and 229 basis points in the quarter over linked quarter and year over year quarters, respectively, primarily due to CD rate specials we offered.

41

Borrowing costs decreased in the first quarter of 2024, compared to the fourth quarter of 2023, primarily due to the $58.5 million decrease in average other short-term borrowings stemming from a decrease in average FHLB advances over the prior quarter. The increase of $131.4 million year over year of average FHLB advances was based on daily liquidity needs, and was the primary driver of the $2.2 million increase to interest expense due to other short-term borrowings. Subordinated and junior subordinated debt interest expense were essentially flat over each of the periods presented. Senior notes had the most significant interest expense decrease year over year, as we redeemed all of the $45.0 million senior notes, net of deferred issuance costs, in June 2023, resulting in senior notes having no balance after that time. In February 2023, we paid off the remaining balance of $9.0 million on the original $20.0 million term note issued in 2020, resulting in notes payable and other borrowings having no balance after that time.

Our net interest margin (GAAP) decreased four basis points to 4.55% for the first quarter of 2024, compared to 4.59% for the fourth quarter of 2023, and decreased 17 basis points compared to 4.72% for the first quarter of 2023.  Our net interest margin (TE) decreased four basis points to 4.58% for the first quarter of 2024, compared to 4.62% for the fourth quarter of 2023, and decreased 16 basis points compared to 4.74% for the first quarter of 2023.  The decrease in the first quarter of 2024, compared to the prior quarter, is driven by higher interest expense due to the current interest rate environment and its effect on interest bearing deposits. The decrease in the first quarter of 2024, compared to the prior year like quarter, is primarily due to an increase in market interest rates, and the related increase in costs of interest-bearing liabilities. See the discussion entitled “Non-GAAP Financial Measures” and the table on page 46 that provides a reconciliation of each non-GAAP measure to the most comparable GAAP equivalent.

42

Analysis of Average Balances,
Tax Equivalent Income / Expense and Rates
(Dollars in thousands - unaudited)
	Quarters Ended
	March 31, 2024						December 31, 2023						March 31, 2023
	Average			Income /		Rate	Average			Income /		Rate	Average			Income /		Rate
	Balance			Expense		%	Balance			Expense		%	Balance			Expense		%
Assets
Interest earning deposits with financial institutions	$	48,088		$	610	5.10	$	47,865		$	616	5.11	$	49,310		$	585	4.81
Securities:
Taxable		1,016,112			8,092	3.20		1,027,366			8,329	3.22		1,330,295			10,735	3.27
Non-taxable (TE)1		166,776			1,653	3.99		164,655			1,674	4.03		173,324			1,693	3.96
Total securities (TE)1		1,182,888			9,745	3.31		1,192,021			10,003	3.33		1,503,619			12,428	3.35
FHLBC and FRBC Stock		31,800			635	8.03		34,371			647	7.47		24,905			280	4.56
Loans and loans held-for-sale1, 2		4,019,377			62,698	6.27		4,016,480			62,793	6.20		3,932,492			57,228	5.90
Total interest earning assets		5,282,153			73,688	5.61		5,290,737			74,059	5.55		5,510,326			70,521	5.19
Cash and due from banks		54,533			-	-		57,723			-	-		55,140			-	-
Allowance for credit losses on loans		(44,295)			-	-		(50,023)			-	-		(49,398)			-	-
Other noninterest bearing assets		384,332			-	-		396,297			-	-		382,579			-	-
Total assets	$	5,676,723					$	5,694,734					$	5,898,647
Liabilities and Stockholders' Equity
NOW accounts	$	553,844		$	829	0.60	$	563,603		$	595	0.42	$	601,030		$	242	0.16
Money market accounts		689,996			2,575	1.50		692,720			2,200	1.26		833,823			828	0.40
Savings accounts		958,645			633	0.27		985,614			517	0.21		1,126,040			79	0.03
Time deposits		558,463			4,041	2.91		497,472			2,833	2.26		434,655			664	0.62
Interest bearing deposits		2,760,948			8,078	1.18		2,739,409			6,145	0.89		2,995,548			1,813	0.25
Securities sold under repurchase agreements		30,061			86	1.15		28,526			51	0.71		31,080			9	0.12
Other short-term borrowings		332,198			4,557	5.52		390,652			5,429	5.51		200,833			2,345	4.74
Junior subordinated debentures		25,773			280	4.37		25,773			290	4.46		25,773			279	4.39
Subordinated debentures		59,393			546	3.70		59,372			546	3.65		59,308			546	3.73
Senior notes		-			-	-		-			-	-		44,599			994	9.04
Notes payable and other borrowings		-			-	-		-			-	-		5,400			87	6.53
Total interest bearing liabilities		3,208,373			13,547	1.70		3,243,732			12,461	1.52		3,362,541			6,073	0.73
Noninterest bearing deposits		1,819,476			-	-		1,838,325			-	-		2,002,801			-	-
Other liabilities		60,024			-	-		63,971			-	-		51,279			-	-
Stockholders' equity		588,850			-	-		548,706			-	-		482,026			-	-
Total liabilities and stockholders' equity	$	5,676,723					$	5,694,734					$	5,898,647
Net interest income (GAAP)				$	59,783					$	61,235					$	64,086
Net interest margin (GAAP)						4.55						4.59						4.72
Net interest income (TE)1				$	60,141					$	61,598					$	64,448
Net interest margin (TE)1						4.58						4.62						4.74
Interest bearing liabilities to earning assets		60.74	%					61.31	%					61.02	%

¹ Represents a non-GAAP financial measure. See the discussion entitled “Reconciliation of Tax-Equivalent Non-GAAP Financial Measures” below that provides a reconciliation of each non-GAAP measure to the most comparable GAAP equivalent. Tax equivalent basis is calculated using a marginal tax rate of 21% in 2024 and 2023.

² Interest income from loans is shown on a tax equivalent basis, which is a non-GAAP financial measure, as discussed in the table on page 44, and includes loan fee expense of $867,000 for the first quarter of 2024, $922,000 for the fourth quarter of 2023, and $730,000 for the first quarter of 2023.  Nonaccrual loans are included in the above-stated average balances.

43

Reconciliation of Tax-Equivalent (TE) Non-GAAP Financial Measures

Net interest and dividend income (TE) and net interest income (TE) to average interest earning assets are non-GAAP measures that have been adjusted on a TE basis using a marginal rate of 21% for 2024 and 2023 to compare returns more appropriately on tax-exempt loans and securities to other earning assets.  The table below provides a reconciliation of each non-GAAP (TE) measure to the GAAP equivalent for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
Net Interest Margin	2024			2023			2023
Interest income (GAAP)	$	73,330		$	73,696		$	70,159
Taxable-equivalent adjustment:
Loans		11			11			6
Securities		347			352			356
Interest and dividend income (TE)		73,688			74,059			70,521
Interest expense (GAAP)		13,547			12,461			6,073
Net interest income (TE)	$	60,141		$	61,598		$	64,448
Net interest income (GAAP)	$	59,783		$	61,235		$	64,086
Average interest earning assets	$	5,282,153		$	5,290,737		$	5,510,326
Net interest margin (TE)		4.58	%		4.62	%		4.74	%
Net interest margin (GAAP)		4.55	%		4.59	%		4.72	%

Noninterest Income

Three months ended March 31, 2024 and 2023

The following table details the major components of noninterest income for the periods presented:

							First Quarter 2024
Noninterest Income	Three Months Ended						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Wealth management	$	2,561	$	2,600	$	2,270	(1.5)	12.8
Service charges on deposits		2,415		2,527		2,424	(4.4)	(0.4)
Residential mortgage banking revenue
Secondary mortgage fees		50		58		59	(13.8)	(15.3)
MSRs mark to market gain (loss)		94		(1,277)		(525)	107.4	117.9
Mortgage servicing income		488		495		516	(1.4)	(5.4)
Net gain on sales of mortgage loans		314		366		306	(14.2)	2.6
Total residential mortgage banking revenue		946		(358)		356	364.2	165.7
Securities gains (losses), net		1		(2)		(1,675)	150.0	100.1
Change in cash surrender value of BOLI		1,172		541		242	116.6	384.3
Card related income		2,376		2,511		2,244	(5.4)	5.9
Other income		1,030		910		1,489	13.2	(30.8)
Total noninterest income	$	10,501	$	8,729	$	7,350	20.3	42.9

Noninterest income increased $1.8 million, or 20.3%, in the first quarter of 2024, compared to the fourth quarter of 2023, and increased $3.2 million, or 42.9%, compared to the first quarter of 2023.  The increase from the fourth quarter of 2023 was primarily driven by a $1.3 million increase in residential mortgage banking revenue primarily due to MSRs mark to market gains, and a $631,000 increase in the cash surrender value of BOLI, both of which were due to market interest rate changes in the first quarter, as well as a $120,000 increase in other income, partially offset by a $39,000 decrease in wealth management income, a $112,000 decrease in service charges on deposits, and a $135,000 decrease in card related income.

44

The increase in noninterest income of $3.2 million in the first quarter of 2024, compared to the first quarter of 2023, is primarily due to a $291,000 increase in wealth management income primarily due to an increase in advisory fees, a $590,000 increase in mortgage banking revenue mainly due to a $619,000 increase in MSRs mark to market gain, $1,000 of realized gains on sales of securities in the first quarter of 2024 compared to realized losses on the sale of securities of $1.7 million in the first quarter of 2023, a $930,000 increase in the cash surrender value of BOLI, and a $132,000 increase in card related income. These increases were partially offset by a $459,000 decrease in other income, as the 2023 period included a one-time credit from a software vendor of $457,000.

Noninterest Expense

Three months ended March 31, 2024 and 2023

The following table details the major components of noninterest expense for the periods presented:

										First Quarter 2024
Noninterest Expense	Three Months Ended									Percent Change From
(Dollars in thousands)	March 31,			December 31,			March 31,			December 31,	March 31,
	2024			2023			2023			2023	2023
Salaries	$	17,647		$	16,738		$	16,087		5.4	9.7
Officers' incentive		2,148			1,450			1,827		48.1	17.6
Benefits and other		4,517			3,217			4,334		40.4	4.2
Total salaries and employee benefits		24,312			21,405			22,248		13.6	9.3
Occupancy, furniture and equipment expense		3,927			3,817			3,475		2.9	13.0
Computer and data processing		2,255			2,291			1,774		(1.6)	27.1
FDIC insurance		667			583			584		14.4	14.2
Net teller & bill paying		521			564			502		(7.6)	3.8
General bank insurance		309			301			305		2.7	1.3
Amortization of core deposit intangible asset		580			603			624		(3.8)	(7.1)
Advertising expense		192			383			142		(49.9)	35.2
Card related expense		1,277			1,338			1,216		(4.6)	5.0
Legal fees		226			228			319		(0.9)	(29.2)
Consulting & management fees		336			556			790		(39.6)	(57.5)
Other real estate owned expense, net		46			218			306		(78.9)	(85.0)
Other expense		3,593			4,739			3,637		(24.2)	(1.2)
Total noninterest expense	$	38,241		$	37,026		$	35,922		3.3	6.5
Efficiency ratio (GAAP)1		53.59	%		50.82	%		47.52	%
Adjusted efficiency ratio (non-GAAP)2		53.09	%		48.76	%		47.66	%

¹ The efficiency ratio shown in the table above is a GAAP financial measure calculated as noninterest expense, excluding amortization of core deposits and OREO expenses, divided by the sum of net interest income and total noninterest income less net gains or losses on securities, and mark to market gains or losses on MSRs.

² The adjusted efficiency ratio shown in the table above is a non-GAAP financial measure calculated as noninterest expense, excluding amortization of core deposits, OREO expenses, litigation expense, and net gains on branch sales, divided by the sum of net interest income on a fully tax equivalent basis, total noninterest income less net gains or losses on securities, mark to market gains or losses on MSRs, and includes a tax equivalent adjustment on the change in cash surrender value of BOLI.  See the discussion entitled “Non-GAAP Financial Measures” above and the table on page 46 that provides a reconciliation of this non-GAAP financial measure to the most comparable GAAP equivalent.

45

Noninterest expense for the first quarter of 2024 increased $1.2 million, or 3.3%, compared to the fourth quarter of 2023, and increased $2.3 million, or 6.5%, compared to the first quarter of 2023.  The increase in the first quarter of 2024 compared to the fourth quarter of 2023 was attributable to a $2.9 million increase in salaries and employee benefits, with increases reflected primarily in salaries due to annual merit increases, restricted stock expense and officers’ incentives due to annual payout true-ups, payroll taxes related to these annual payouts, and deferred executive compensation due to changes in market interest rates.  Also contributing to the noninterest expense increase in the first quarter of 2024 was a $110,000 increase in occupancy, furniture and equipment and an $84,000 increase in FDIC insurance.  Partially offsetting the increase in noninterest expense in the first quarter of 2024 compared to the fourth quarter of 2023 was a $191,000 decrease in advertising expense, a $61,000 decrease in card related expense, a $220,000 decrease in consulting & management fees, a $172,000 decrease in OREO related expense, and a $1.1 million decrease in other expense due to a $1.2 million litigation expense recorded in the fourth quarter of 2023 for a pending overdraft fee compliance claim.

The year over year increase in noninterest expense is primarily attributable to a $2.1 million increase in salaries and employee benefits, driven by increases in annual base salary rates, restricted stock expense, officers’ incentives, and deferred employee compensation due to market interest rate changes.  Also contributing to the increase was a $452,000 increase in occupancy, furniture and equipment, primarily due to branch remodeling and offset by net gains on sales of branches in 2023, and a $481,000 increase in computer and data processing partially due to core processor credits received in 2023. Partially offsetting the increase in noninterest expense in the first quarter of 2024, compared to the first quarter of 2023, was a $93,000 decrease in legal fees, a $454,000 decrease in consulting & management fees, and a $260,000 decrease in OREO related expenses.

Reconciliation of Adjusted Efficiency Ratio Non-GAAP Financial Measures

	GAAP									Non-GAAP
		Three Months Ended									Three Months Ended
	March 31,			December 31,			March 31,			March 31,			December 31,			March 31,
	2024			2023			2023			2024			2023			2023
Efficiency Ratio / Adjusted Efficiency Ratio
Noninterest expense	$	38,241		$	37,026		$	35,922		$	38,241		$	37,026		$	35,922
Less amortization of core deposit		580			603			624			580			603			624
Less other real estate expense, net		46			218			306			46			218			306
Less litigation related expense		N/A			N/A			N/A			-			1,200			-
Less losses/(gains) on branch sales, net		N/A			N/A			N/A			-			19			(306)
Noninterest expense less adjustments	$	37,615		$	36,205		$	34,992		$	37,615		$	34,986		$	35,298
Net interest income	$	59,783		$	61,235		$	64,086		$	59,783		$	61,235		$	64,086
Taxable-equivalent adjustment:
Loans		N/A			N/A			N/A			11			11			6
Securities		N/A			N/A			N/A			347			352			356
Net interest income including adjustments		59,783			61,235			64,086			60,141			61,598			64,448
Noninterest income		10,501			8,729			7,350			10,501			8,729			7,350
Less securities gains (losses)		1			(2)			(1,675)			1			(2)			(1,675)
Less MSRs mark to market gains (losses)		94			(1,277)			(525)			94			(1,277)			(525)
Taxable-equivalent adjustment:
Change in cash surrender value of BOLI		N/A			N/A			N/A			311			144			64
Noninterest income (excluding) / including adjustments		10,406			10,008			9,550			10,717			10,152			9,614
Net interest income including adjustments plus noninterest income (excluding) / including adjustments	$	70,189		$	71,243		$	73,636		$	70,858		$	71,750		$	74,062
Efficiency ratio / Adjusted efficiency ratio		53.59	%		50.82	%		47.52	%		53.09	%		48.76	%		47.66	%

N/A - not applicable

46

Income Taxes

We recorded income tax expense of $7.2 million for the first quarter of 2024 on $28.5 million of pretax income, compared to income tax expense of $6.7 million on $24.9 million of pretax income in the fourth quarter of 2023, and income tax expense of $8.4 million on $32.0 million of pretax income in the first quarter of 2023. Our effective tax rate was 25.3% in the first quarter of 2024, 26.9% for the fourth quarter of 2023, and 26.3% for the first quarter of 2023.  The slight reduction in the effective tax rate for the first quarter of 2024 reflects the impact of credits to tax expense related to vested stock awards in the first quarter 2024, which occurs annually each February; these stock awards were larger in the first quarter of 2024 than the like 2023 period.

Income tax expense reflected all relevant statutory tax rates and GAAP accounting.  There were no significant changes in our ability to utilize our deferred tax assets during the quarter ended March 31, 2024.  We had no valuation reserve on the deferred tax assets as of March 31, 2024.

Financial Condition

Total assets decreased $106.7 million to $5.62 billion at March 31, 2024, from $5.72 billion at December 31, 2023, due primarily to the decrease of $24.0 million in securities available-for-sale, the decrease of $73.5 million in total loans, and the $5.6 million decrease in other assets.  The decrease in securities available-for-sale was primarily due to paydowns and strategic sales. These decreases were partially offset by increases in premises and equipment of $2.0 million and BOLI of $1.2 million. We continue to actively assess potential investment opportunities to utilize our excess liquidity. Total deposits were $4.61 billion at March 31, 2024, an increase of $37.5 million from December 31, 2023, primarily due to seasonal tax refunds, as well as deposit rate specials.

							March 31, 2024
Securities	As of						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Securities available-for-sale, at fair value
U.S. Treasuries	$	171,000	$	169,574	$	214,734	0.8	(20.4)
U.S. government agencies		56,979		56,959		56,703	0.0	0.5
U.S. government agencies mortgage-backed		101,075		106,370		121,938	(5.0)	(17.1)
States and political subdivisions		222,742		227,065		231,391	(1.9)	(3.7)
Corporate bonds		-		-		9,762	N/M	(100.0)
Collateralized mortgage obligations		379,603		392,544		454,106	(3.3)	(16.4)
Asset-backed securities		66,707		68,436		191,868	(2.5)	(65.2)
Collateralized loan obligations		170,691		171,881		174,566	(0.7)	(2.2)
Total securities	$	1,168,797	$	1,192,829	$	1,455,068	(2.0)	(19.7)

N/M – Not meaningful.

47

Securities available-for-sale decreased $24.0 million as of March 31, 2024 compared to December 31, 2023, and decreased $286.3 million compared to March 31, 2023. The decrease in the portfolio during the first quarter of 2024 was driven by paydowns totaling $30.7 million, securities sales totaling $5.3 million, and maturities totaling $2.0 million, partially offset by $15.7 million in purchases. We continue to seek to position the portfolio in higher credit quality, shorter duration securities with an appropriate mix of fixed- and floating-rate exposures.

							March 31, 2024
Loans	As of						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Commercial	$	796,552	$	841,697	$	851,737	(5.4)	(6.5)
Leases		425,615		398,223		285,831	6.9	48.9
Commercial real estate – investor		1,018,382		1,034,424		1,056,787	(1.6)	(3.6)
Commercial real estate – owner occupied		782,603		796,538		870,115	(1.7)	(10.1)
Construction		169,174		165,380		174,683	2.3	(3.2)
Residential real estate – investor		51,522		52,595		56,720	(2.0)	(9.2)
Residential real estate – owner occupied		220,223		226,248		217,855	(2.7)	1.1
Multifamily		387,479		401,696		358,991	(3.5)	7.9
HELOC		98,762		103,237		104,941	(4.3)	(5.9)
Other 1		19,099		22,915		25,694	(16.7)	(25.7)
Total loans	$	3,969,411	$	4,042,953	$	4,003,354	(1.8)	(0.8)

¹ The “Other” segment includes consumer loans and overdrafts.

Total loans were $3.97 billion as of March 31, 2024, a decrease of $73.5 million from December 31, 2023.  The decrease in total loans in the first three months of 2024, compared to December 31, 2023, was due primarily to paydowns, net of originations, within commercial of $45.1 million, commercial real estate – investor of $16.0 million and multifamily of $14.2 million offset by net increases in leases of $27.4 million from December 31, 2023.  Total loans decreased $33.9 million from March 31, 2023 to March 31, 2024, primarily due to paydowns, net of originations, within commercial of $55.2 million, commercial real estate - investor of $38.4 million, and commercial real estate – owner occupied of $87.5 million, offset by net increases in leases of $139.8 million and multifamily of $28.5 million.  As required by CECL, the balance (or amortized cost basis) of purchased credit deteriorated loans, or PCD loans (discussed below) is carried on a gross basis (rather than net of the associated credit loss estimate), and the expected credit losses for PCD loans are estimated and separately recognized as part of the allowance for credit losses, or ACL.  

The quality of our loan portfolio is impacted not only by our credit decisions but also by the economic health of the communities in which we operate.  Since we are located in a corridor with significant open space and undeveloped real estate, real estate lending (including commercial real estate, construction, residential, multifamily, and HELOCs) has been and continues to be a sizeable portion of our portfolio. These categories comprised 68.7% of the portfolio as of March 31, 2024, compared to 68.8% of the portfolio as of December 31, 2023.  At March 31, 2024, our outstanding commercial real estate loans and undrawn commercial real estate commitments, excluding owner occupied real estate were equal to 268.8% of our Tier 1 capital plus allowance for credit losses, a decrease from 286.9% at December 31, 2023.  We continue to oversee and seek to manage our loan portfolio in accordance with interagency guidance on risk management.

Asset Quality

Nonperforming loans consist of nonaccrual loans and loans 90 days or greater past due. Nonperforming loans decreased by $3.7 million to $65.1 million at March 31, 2024 from $68.8 million at December 31, 2023 and increased $586,000 from $64.5 million at March 31, 2023. Purchased credit deteriorated loans, or PCD loans, are purchased loans that, as of the date of acquisition, we determined had experienced a more-than-insignificant deterioration in credit quality since origination.  PCD loans and their related deferred loan costs are included in our nonperforming loan disclosures, if such loans otherwise meet the definition of a nonperforming loan.  Management continues to carefully monitor loans considered to be in a classified status.  Nonperforming loans as a percent of total loans were 1.6% as of March 31, 2024, 1.7% as of December 31, 2023, and 1.6% as of March 31, 2023.  The distribution of our nonperforming loans is shown in the following table.

48

							March 31, 2024
Nonperforming Loans	As of						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Commercial	$	2,746	$	2,025	$	2,811	35.6	(2.3)
Leases		595		639		856	(6.9)	(30.5)
Commercial real estate – investor		16,128		16,572		30,397	(2.7)	(46.9)
Commercial real estate – owner occupied		30,897		34,946		19,691	(11.6)	56.9
Construction		7,119		7,162		241	(0.6)	N/M
Residential real estate – investor		1,299		1,331		1,555	(2.4)	(16.5)
Residential real estate – owner occupied		3,031		3,078		4,038	(1.5)	(24.9)
Multifamily		1,959		1,775		2,495	10.4	(21.5)
HELOC		1,339		1,251		2,441	7.0	(45.1)
Other 1		-		-		2	-	(100.0)
Total nonperforming loans	$	65,113	$	68,779	$	64,527	(5.3)	0.9

¹ The “Other” segment includes consumer loans and overdrafts.

N/M – Not meaningful.

The components of our nonperforming assets are shown in the following table.

										March 31, 2024
Nonperforming Assets	As of									Percent Change From
(Dollars in thousands)	March 31,			December 31,			March 31,			December 31,	March 31,
	2024			2023			2023			2023	2023
Nonaccrual loans	$	64,324		$	67,583		$	63,561		(4.8)	1.2
Loans past due 90 days or more and still accruing interest		789			1,196			966		(34.0)	(18.3)
Total nonperforming loans		65,113			68,779			64,527		(5.3)	0.9
Other real estate owned		5,123			5,123			1,255		-	308.2
Total nonperforming assets	$	70,236		$	73,902		$	65,782		(5.0)	6.8
30-89 days past due loans and still accruing interest	$	21,183		$	13,668		$	24,770
Nonaccrual loans to total loans		1.6	%		1.7	%		1.6	%
Nonperforming loans to total loans		1.6	%		1.7	%		1.6	%
Nonperforming assets to total loans plus OREO		1.8	%		1.8	%		1.6	%
Allowance for credit losses	$	44,113		$	44,264		$	53,392
Allowance for credit losses to total loans		1.1	%		1.1	%		1.3	%
Allowance for credit losses to nonaccrual loans		68.6	%		65.5	%		84.0	%

49

Loan charge-offs, net of recoveries, for the first quarter of 2024, prior linked quarter and year over year quarter are shown in the following table.

Loan Charge–offs, Net of Recoveries	Three Months Ended
(Dollars in thousands)	March 31,		% of	December 31,		% of	March 31,		% of
	2024		Total1	2023		Total1	2023		Total1
Commercial	$	(58)	(1.6)	$	71	0.5	$	(124)	(16.8)
Leases		(40)	(1.1)		(8)	(0.1)		873	118.0
Commercial real estate – investor		(67)	(1.8)		4,951	32.0		(17)	(2.3)
Commercial real estate – owner occupied		3,868	104.7		10,443	67.5		(2)	(0.3)
Residential real estate – investor		(2)	(0.1)		(3)	-		(19)	(2.6)
Residential real estate – owner occupied		(8)	(0.2)		(8)	(0.1)		(10)	(1.4)
HELOC		(17)	(0.5)		(17)	(0.1)		(29)	(3.9)
Other 2		19	0.6		31	0.3		68	9.3
Net charge–offs	$	3,695	100.0	$	15,460	100.0	$	740	100.0

¹ Represents the percentage of net charge-offs attributable to each category of loans.

² The “Other” segment includes consumer and overdrafts.

Net charge-offs of $3.7 million were recorded for the first quarter of 2024, compared to net charge-offs of $15.5 million for the fourth quarter of 2023, and net charge-offs of $740,000 for the first quarter of 2023, reflecting continuing management attention to credit quality and remediation efforts.  The net charge-offs for the first quarter of 2024 were primarily due to a $3.9 million charge off of a commercial real estate – owner occupied loan. The commercial real estate – owner occupied credit had a reported reserve allocation of $3.9 million prior to the first quarter of 2024 charge-off. We have continued our conservative loan valuations and aggressive recovery efforts on prior charge-offs.  

Classified loans include nonaccrual loans and all other loans considered substandard. Classified assets include both classified loans and OREO.  Loans classified as substandard are inadequately protected by either the current net worth and ability to meet payment obligations of the obligor, or by the collateral pledged to secure the loan, if any.  These loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt and carry the distinct possibility that we will sustain some loss if deficiencies remain uncorrected.

The following table shows classified assets by segment for the following periods.

							March 31, 2024
Classified Assets	As of						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Commercial	$	15,243	$	8,414	$	22,662	81.2	(32.7)
Leases		595		818		906	(27.3)	(34.3)
Commercial real estate – investor		43,154		43,798		52,615	(1.5)	(18.0)
Commercial real estate – owner occupied		61,267		54,613		37,545	12.2	63.2
Construction		7,119		17,155		241	(58.5)	N/M
Residential real estate – investor		1,299		1,331		1,702	(2.4)	(23.7)
Residential real estate – owner occupied		3,168		3,216		3,618	(1.5)	(12.4)
Multifamily		1,959		1,775		3,348	10.4	(41.5)
HELOC		1,648		1,664		2,635	(1.0)	(37.5)
Other 1		-		-		2	-	(100.0)
Total classified loans		135,452		132,784		125,274	2.0	8.1
Other real estate owned		5,123		5,123		1,255	N/M	308.2
Total classified assets	$	140,575	$	137,907	$	126,529	1.9	11.1

¹ The “Other” segment includes consumer loans and overdrafts.

N/M - Not meaningful

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Total classified loans and classified assets increased $2.7 million as of March 31, 2024 from December 31, 2023. The increase since December 31, 2023 is due to the additions of $15.9 million, the majority of which consisted of three relationships totaling $14.7 million. Commercial loans were the majority of the additions, consisting of seven loans totaling $11.6 million and one relationship in commercial real estate – owner occupied totaling $3.3 million. The additions are offset by $13.2 million of outflows, most driven by $6.3 million of loan rating upgrades, and a $3.9 million partial charge off. The increase from March 31, 2023 is primarily due to additions to commercial real estate – owner occupied. Management monitors a ratio of classified assets to the sum of Bank Tier 1 capital and the ACL on loans as another measure of overall change in loan related asset quality, which is referred to as the “classified assets ratio.” The classified assets ratio was 21.33% for the period ended March 31, 2024, compared to 21.66% as of December 31, 2023, and 20.04% as of March 31, 2023.  

Allowance for Credit Losses on Loans

The provision for credit losses, which includes a provision for losses on unfunded commitments, is a charge to earnings to maintain the allowance for credit losses (“ACL”) at a level consistent with management’s assessment of expected losses in the loan portfolio at the balance sheet date.

At March 31, 2024, our ACL on loans totaled $44.1 million, and our ACL on unfunded commitments, included in other liabilities, totaled $2.7 million. In the first quarter of 2024, we recorded provision expense on loans of $3.5 million, based on historical loss rates, our assessment of nonperforming loan metrics and trends, downward risk rating migrations, and estimated future credit losses, and a $44,000 reversal of provision on unfunded commitments, primarily due to an adjustment of historical benchmark assumptions, such as funding rates and the period used to forecast those rates, within the ACL calculation.  These adjustments resulted in a $3.5 million net impact to the provision for credit losses for the first quarter of 2024.  

Management estimates the amount of provision required on a quarterly basis and records the appropriate provision expense, or release of expense, to maintain an adequate reserve for all potential and estimated credit losses on loans, leases and unfunded commitments.  The ACL on loans totaled $44.1 million as of March 31, 2024, $44.3 million as of December 31, 2023, and $53.4 million as of March 31, 2023.  Our ACL on loans to total loans was 1.1% as of March 31, 2024, compared to 1.1% as of December 31, 2023 and 1.3% as of March 31, 2023.  See Item 7 – Critical Accounting Estimates in the Management Discussion and Analysis in our 2023 Annual Report in Form 10-K for discussion of our ACL methodology on loans. Allocations of the ACL may be made for specific loans, but the entire allowance is available for any loan that, in our judgment, should be charged-off.

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Below is a reconciliation of the activity in the allowance for credit losses on loans for the periods indicated (dollars in thousands):

		Three Months Ended
	March 31,			December 31,			March 31,
	2024			2023			2023
Allowance at beginning of period	$	44,264		$	51,729		$	49,480
Charge–offs:
Commercial		15			458			27
Leases		-			-			882
Commercial real estate – investor		16			4,971			-
Commercial real estate – owner occupied		3,887			10,455			-
Construction		-			-			-
Residential real estate – investor		-			-			-
Residential real estate – owner occupied		-			-			-
Multifamily		-			-			-
HELOC		-			-			-
Other 1		70			67			113
Total charge–offs		3,988			15,951			1,022
Recoveries:
Commercial		73			387			151
Leases		40			8			9
Commercial real estate – investor		83			20			17
Commercial real estate – owner occupied		19			12			2
Construction		-			-			-
Residential real estate – investor		2			3			19
Residential real estate – owner occupied		8			8			10
Multifamily		-			-			-
HELOC		17			17			29
Other 1		51			36			45
Total recoveries		293			491			282
Net charge-offs		3,695			15,460			740
Provision for credit losses on loans		3,544			7,995			4,652
Allowance at end of period	$	44,113		$	44,264		$	53,392
Average total loans (exclusive of loans held–for–sale)	$	4,018,631		$	4,014,771		$	3,931,679
Net charge–offs to average loans		0.37	%		1.53	%		0.08	%
Allowance at period end to average loans		1.10	%		1.10	%		1.36	%

¹ The “Other” segment includes consumer loans and overdrafts.

The coverage ratio of the ACL on loans to nonperforming loans was 67.8% as of March 31, 2024, which was an increase from the coverage ratio of 64.4% as of December 31, 2023 and a decrease from 82.7% as of March 31, 2023.  When measured as a percentage of average loans, our total ACL on loans was 1.10% at March 31, 2024, 1.10% at December 31, 2023, and 1.36% at March 31, 2023.

In management’s judgment, an adequate ACL has been established to encompass the current lifetime expected credit losses at March 31, 2024, and general changes in lending policy, procedures and staffing, as well as other external factors.  However, there can be no assurance that actual losses will not exceed the estimated amounts in the future, based on unforeseen economic events, changes in business climates and the condition of collateral at the time of default and repossession.  Continued volatility in the economic environment stemming from the impacts of and response to inflation, potential recession, and the war in Ukraine and the conflict in the Middle East, and the associated effects on our customers, or other factors, such as changes in business climates and the condition of collateral at the time of default or repossession, may revise our current expectations of future credit losses in future reporting periods.

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Other Real Estate Owned

As of March 31, 2024, OREO totaled $5.1 million, reflecting no change from December 31, 2023, and an increase of $3.9 million from $1.3 million at March 31, 2023. There were no property additions or disposals in the OREO portfolio in the first quarter of 2024. No valuation adjustments occurred in the first quarter of 2024 or in the fourth quarter of 2023. In the first quarter of 2023, we recorded two write-downs totaling $273,000 as well as a write-up for $4,000, totaling a net $269,000 increase in valuation reserve.

							March 31, 2024
OREO	Three Months Ended						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Balance at beginning of period	$	5,123	$	407	$	1,561	N/M	228.2
Property additions, net of acquisition adjustments		-		4,894		291	(100.0)	(100.0)
Less:
Proceeds from property disposals, net of participation purchase and of gains/losses		-		178		328	(100.0)	(100.0)
Period valuation write-down		-		-		269	-	(100.0)
Balance at end of period	$	5,123	$	5,123	$	1,255	-	308.2

N/M - Not meaningful

In management’s judgment, the property valuation allowance as established presents OREO at current estimates of fair value less estimated costs to sell; however, there can be no assurance that additional losses will not be incurred on disposals or upon updates to valuations in the future.

OREO Properties by Type
(Dollars in thousands)	March 31, 2024				December 31, 2023				March 31, 2023
		Amount	% of Total			Amount	% of Total			Amount	% of Total
Single family residence	$	-	-	%	$	-	-	%	$	291	23	%
Lots (single family and commercial)		-	-			-	-			767	61
Vacant land		197	4			197	4			197	16
Multi-family		-	-			-	-			-	-
Commercial property		4,926	96			4,926	96			-	-
Total other real estate owned	$	5,123	100	%	$	5,123	100	%	$	1,255	100	%

Deposits and Borrowings

							March 31, 2024
Deposits	As of						Percent Change From
(Dollars in thousands)	March 31,		December 31,		March 31,		December 31,	March 31,
	2024		2023		2023		2023	2023
Noninterest bearing demand	$	1,799,927	$	1,834,891	$	1,950,144	(1.9)	(7.7)
Savings		955,528		971,334		1,108,610	(1.6)	(13.8)
NOW accounts		569,814		565,375		608,260	0.8	(6.3)
Money market accounts		696,354		671,240		799,300	3.7	(12.9)
Certificates of deposit of less than $100,000		289,962		266,035		238,257	9.0	21.7
Certificates of deposit of $100,000 through $250,000		205,638		180,289		147,887	14.1	39.1
Certificates of deposit of more than $250,000		91,052		81,582		44,762	11.6	103.4
Total deposits	$	4,608,275	$	4,570,746	$	4,897,220	0.8	(5.9)

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Total deposits were $4.61 billion at March 31, 2024, which reflects a $37.5 million increase from total deposits of $4.57 billion at December 31, 2023, and a decrease of $288.9 million from total deposits of $4.90 billion at March 31, 2023.  The increase in deposits at March 31, 2024, compared to December 31, 2023, was primarily due to increases in time deposits of $58.7 million and money market and NOW accounts of $29.6 million, partially offset by decreases in noninterest bearing deposits of $35.0 million and savings accounts of $15.8 million. The decrease in deposits at March 31, 2024, compared to March 31, 2023, was primarily due to decreases in noninterest bearing deposits of $150.2 million, savings accounts of $153.1 million, and money market accounts of $102.9 million, partially offset by an increase in time deposits of $155.7 million.  Total quarterly average deposits decreased $417.9 million, or 8.4%, in the year over year period, driven by declines in our average demand deposits of $183.3 million, and savings, NOW and money markets combined of $358.4 million, partially offset by an increase in average time deposits of $123.8 million year over year. In general, the bulk of the decline in deposits year over year can be characterized as rate sensitive with significant flows and transfers into investing activities.

The following table presents estimated insured and uninsured deposits at March 31, 2024 and December 31, 2023 by deposit type, as well as the weighted average rates for each year to date ending period.

(Dollars in thousands)	March 31, 2024								December 31, 2023
	Total Deposits		Insured Deposits		Uninsured Deposits		Average Rate Paid		Total Deposits		Insured Deposits		Uninsured Deposits		Average Rate Paid
Noninterest bearing demand	$	1,799,927	$	1,181,856	$	618,069	-	%	$	1,834,891	$	1,137,089	$	697,802	-	%
Savings		955,528		891,407		64,121	0.27			971,334		905,163		66,171	0.11
NOW accounts		569,814		416,195		153,620	0.60			565,375		414,005		151,370	0.27
Money market accounts		696,354		470,759		225,595	1.50			671,240		473,006		198,234	0.80
Time deposits		586,652		501,928		84,724	2.91			527,906		452,000		75,906	1.45
Total	$	4,608,275	$	3,462,145	$	1,146,129	0.71	%	$	4,570,746	$	3,381,263	$	1,189,483	0.32	%
Collateralized public funds	$	246,464	$	14,980	$	231,484			$	247,202	$	15,211	$	231,991

Deposits increased 0.8% for the three months ended March 31, 2024, which reflects that our efforts on retaining and acquiring new deposits have been effective. Competitive rate pressures have eased, however, there is a continued remix into our time deposits and interest bearing accounts, drawn by higher rates. Overall, our deposit level remains stable as we continue to monitor customer relationships and liquidity closely.

In addition to deposits, we used other liquidity sources for our funding needs in all periods presented, such as repurchase agreements and other short-term borrowings with the FHLBC. Securities sold under repurchase agreements totaled $33.5 million at March 31, 2024, a $7.1 million, or 26.7%, increase from $26.5 million at December 31, 2023, and an increase of $5.6 million, or 20.2%, from March 31, 2023. The outstanding balance of our short-term FHLBC borrowings was $220.0 million as of March 31, 2024, $405.0 million as of December 31, 2023, and $315.0 million as of March 31, 2023.

We are also indebted on $25.8 million of junior subordinated debentures, net of deferred issuance costs, as of March 31, 2024, which are related to the trust preferred securities issued by its statutory trust subsidiary, Old Second Capital Trust II (“Trust II”). The Trust II issuance converted from fixed to floating rate at three month LIBOR, which is now three month Term SOFR, plus 150 basis points beginning June 15, 2017.  Upon conversion to a floating rate, we initiated a cash flow hedge which resulted in the total interest rate paid on this debt of 4.37% as of March 31, 2024, as compared to 6.77%, which was the rate paid during the period prior to the June 15, 2017 rate reset.

In the second quarter of 2021, we entered into Subordinated Note Purchase Agreements with certain qualified institutional buyers pursuant to which we issued $60.0 million in aggregate principal amount of our 3.50% Fixed-to-Floating Rate Subordinated Notes due April 15, 2031 (the “Notes”).  We sold the Notes to eligible purchasers in a private offering, and the proceeds of this issuance were used for general corporate purposes. The Notes bear interest at a fixed annual rate of 3.50% through April 14, 2026, payable semi-annually in arrears.  As of April 15, 2026 forward, the interest rate on the Notes will generally reset quarterly to a rate equal to three-month Term SOFR (as defined by the Note) plus 273 basis points, payable quarterly in arrears.  The Notes have a stated maturity of April 15, 2031, and are redeemable, in whole are in part, on April 15, 2026, or any interest payment date thereafter, and at any time upon the occurrence of certain events. As of March 31, 2024, we had $59.4 million of subordinated debentures outstanding, net of deferred issuance costs.

In December 2016, we completed a $45.0 million senior note issuance. The notes had a ten-year term, and included interest payable semiannually at 5.75% for five years. Beginning December 31, 2021, the interest became payable quarterly at three month LIBOR plus 385 basis points. On June 30, 2023, the senior notes were redeemed in full.  The remaining balance of deferred debt issuance costs of $362,000 related to these senior notes was recognized as interest expense as of June 30, 2023.

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On February 24, 2023, we paid off the remaining $9.0 million balance in notes payable and other borrowings, resulting in no balance in this line item as of March 31, 2024, December 31, 2023, and March 31, 2023. The balance in notes payable was related to a $20.0 million term note originated with a correspondent bank in the first quarter of 2020, to facilitate the redemption of our Old Second Capital Trust I trust preferred securities and related junior subordinated debentures, completed on March 2, 2020.

Capital

As of March 31, 2024, total stockholders’ equity was $596.2 million, which was an increase of $18.9 million from $577.3 million as of December 31, 2023.  This increase was largely attributable to net income of $21.3 million in the first three months of 2024, partially offset by $2.2 million of dividends paid to our common stockholders. In addition, total stockholders’ equity as of March 31, 2024 increased over December 31, 2023, due to a reduction in unrealized net losses on available-for-sale securities, which contributed to the overall decrease in accumulated other comprehensive loss of $580,000 in the first three months of 2024, due to changes in market interest rates.  Total stockholders’ equity as of March 31, 2024 increased $99.3 million compared to March 31, 2023 due to net income year over year and the decrease in accumulated other comprehensive loss of $15.7 million year over year.

The following table shows the regulatory capital ratios and the current well capitalized regulatory requirements for the Company and the Bank as of the dates indicated:

	Minimum Capital		Well Capitalized
	Adequacy with		Under Prompt
	Capital Conservation		Corrective Action		March 31,		December 31,		March 31,
	Buffer, if applicable1		Provisions2		2024		2023		2023
The Company
Common equity tier 1 capital ratio	7.00	%	N/A		12.02	%	11.37	%	9.91	%
Total risk-based capital ratio	10.50		N/A		14.79		14.06		12.79
Tier 1 risk-based capital ratio	8.50		N/A		12.55		11.89		10.43
Tier 1 leverage ratio	4.00		N/A		10.47		10.06		8.56
The Bank
Common equity tier 1 capital ratio	7.00	%	6.50	%	13.06	%	12.32	%	11.98	%
Total risk-based capital ratio	10.50		10.00		14.03		13.24		13.10
Tier 1 risk-based capital ratio	8.50		8.00		13.06		12.32		11.98
Tier 1 leverage ratio	4.00		5.00		10.89		10.41		9.83

¹ Amounts are shown inclusive of a capital conservation buffer of 2.50%.

² The prompt corrective action provisions are only applicable at the Bank level.

As part of its response to the impact of the COVID-19 pandemic, in the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule that provided banking organizations that adopted CECL during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five-year transition in total). In connection with our adoption of CECL on January 1, 2020, we elected to utilize the five-year CECL transition.  As of March 31, 2024, our capital measures exclude $951,000, which is the modified CECL transition adjustment.

As of March 31, 2024, the Company, on a consolidated basis, exceeded the minimum capital ratios to be deemed “well capitalized” and met the capital conservation buffer requirements.  In addition to the above regulatory ratios, our GAAP common equity to total assets ratio, which is used as a performance measurement for capital analysis and peer comparisons, increased from 10.09% at December 31, 2023, to 10.62% at March 31, 2024. Our GAAP tangible common equity to tangible assets ratio was 9.04% at March 31, 2024, compared to 8.53% as of December 31, 2023.  Our non-GAAP tangible common equity to tangible assets ratio, which management also considers a valuable performance measurement for capital analysis, increased from 8.56% at December 31, 2023, to 9.08% at March 31, 2024, primarily due to an increase in tangible common equity in the first quarter of 2024.  The increase in tangible common equity was primarily due to an increase in retained earnings of $19.1 million.

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Reconciliation of Tangible Common Equity to Tangible Assets Ratio Non-GAAP Measure

	March 31, 2024						December 31, 2023
Tangible common equity	GAAP			Non-GAAP			GAAP			Non-GAAP
(Dollars in thousands)
Total Equity	$	596,159		$	596,159		$	577,281		$	577,281
Less: Goodwill and intangible assets		97,115			97,115			97,695			97,695
Add: Limitation of exclusion of core deposit intangible (80%)		N/A			2,127			N/A			2,243
Adjusted goodwill and intangible assets		97,115			94,988			97,695			95,452
Tangible common equity	$	499,044		$	501,171		$	479,586		$	481,829
Tangible assets
Total assets	$	5,616,072		$	5,616,072		$	5,722,799		$	5,722,799
Less: Adjusted goodwill and intangible assets		97,115			94,988			97,695			95,452
Tangible assets	$	5,518,957		$	5,521,084		$	5,625,104		$	5,627,347
Common equity to total assets		10.62	%		10.62	%		10.09	%		10.09	%
Tangible common equity to tangible assets		9.04	%		9.08	%		8.53	%		8.56	%

The non-GAAP intangible asset exclusion reflects the 80% core deposit limitation per Basel III guidelines within risk-based capital calculations, and is useful for us when reviewing risk-based capital ratios and equity performance metrics.

Liquidity

Liquidity is our ability to fund operations, to meet depositor withdrawals, to provide for customers’ credit needs, and to meet maturing obligations and existing commitments.  Our liquidity principally depends on our cash flows from operating activities, investment in and maturity of assets, changes in balances of deposits and borrowings, and our ability to borrow funds. In the first quarter of 2024, we experienced a decrease in loans, while deposits trended up as the rates offered on our deposit products remain competitive to peers.  We managed the change in our funding through borrowing from the Federal Home Loan Bank of Chicago (“FHLBC”) and sales of securities, which resulted in minimal losses and mitigated our interest rate risk profile.  The bank failures that occurred in 2023 exemplify the potentially serious results of the unexpected inability of insured depository institutions to obtain needed liquidity to satisfy deposit withdrawal requests, including how quickly such requests can accelerate once uninsured depositors lose confidence in an institution’s ability to satisfy its obligations to depositors. We seek to ensure our funding needs are met by maintaining a level of liquidity through asset and liability management. We monitor our borrowing capacity at the FHLBC as part of our liquidity management process as supervised by our Asset and Liability Committee (“ALCO”) and reviewed by our Board of Directors.  In addition, our senior management team monitors cash balances daily to ensure we have adequate liquidity to meet our operational and financing needs.  As of March 31, 2024, our cash on hand liquidity totaled $98.1 million, a decrease of $2.1 million over cash balances held as of December 31, 2023.  

Net cash inflows from operating activities were $47.3 million during the first three months of 2024, compared with net cash inflows of $35.0 million in the same period of 2023.  Proceeds from sales of loans held-for-sale, net of funds used to originate loans held-for-sale, were a source of inflows for the first three months of 2024 compared to a source of outflows for the like period of 2023.  Interest paid, net of interest received, combined with changes in other assets and liabilities were a source of inflows for the three months ended March 31, 2024 and source of outflows for the like period of 2023. The management of investing and financing activities, as well as market conditions, determines the level and the stability of net interest cash flows.  Management’s policy is to mitigate the impact of changes in market interest rates to the extent possible, as part of the balance sheet management process.

Net cash inflows from investing activities were $93.9 million in the three months ended March 31, 2024, compared to net cash outflows of $42.9 million in the same period in 2023.  In the first three months of 2024, securities transactions accounted for net inflows of $22.3 million, and the principal change on loans accounted for net inflows of $70.0 million.  In the first three months of 2023, securities transactions accounted for net inflows of $99.7 million, and principal on loans funded, net of paydowns, accounted for net outflows of $132.4 million.  

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Net cash outflows from financing activities in the three months ended March 31, 2024, were $143.2 million, compared with net cash outflows of $4.2 million in the three months ended March 31, 2023.  Net deposit inflows in the first three months of 2024 were $37.6 million compared to net deposit outflows of $213.1 million in the first three months of 2023.  Other short-term borrowings had $185.0 million of net cash outflows in the first three months of 2024, compared to net cash inflows of $225.0 million for other short-term borrowings in the first three months of 2023.  Changes in securities sold under repurchase agreements accounted for inflows of $7.1 million and outflows of $4.3 million for the three months ended March 31, 2024 and 2023, respectively.  Dividends paid on our common stock totaled $2.2 million for both the three months ended March 31, 2024 and 2023.  Vesting of restricted stock accounted for inflows of $99,000 in the three months ended March 31, 2024, compared to no cash flows from vestings of restricted stock in the same period of 2023. The purchase of treasury stock in the first three months of 2024 due to shares acquired with equity award vestings resulted in outflows of $776,000, compared to cash outflows of $605,000 in the first three months of 2023 related to shares acquired from equity award vestings.

Cash and cash equivalents for the three months ended March 31, 2024, totaled $98.1 million, as compared to $100.1 million as of December 31, 2023 and $103.0 million as of March 31, 2023.  The decrease in cash and cash equivalents for the three months ended March 31, 2024 was mainly attributable to the decrease in FHLB advances during the period, partially offset by the decrease in our loan portfolio, sales of securities, and the increase in customer deposits during the first three months of 2024. The year over year decrease is driven by decreased FHLB advances and increased customer use of deposits, partially offset by a decline in loans and sales of securities. In addition to cash and cash equivalents on hand or held as deposits with other financial institutions, we rely on funding sources from customer deposits, cash flows from securities available-for-sale and loans, and a line of credit with the FHLBC to meet potential liquidity needs.  These sources of liquidity are immediately available to satisfy any funding requirements due to depositor or borrower demands through the ordinary course of our business.  Additional sources of funding include a $30.0 million undrawn line of credit held by the Company with a third party financial institution, as well as unpledged securities available-for-sale.    

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Risk

As part of our normal operations, we are subject to interest-rate risk on the assets we invest in (primarily loans and securities) and the liabilities we fund (primarily customer deposits and borrowed funds).  Fluctuations in interest rates may result in changes in the fair market values of our financial instruments, cash flows, and net interest income.  Like most financial institutions, we have an exposure to changes in both short-term and long-term interest rates. A financial institution’s ability to be relatively unaffected by changes in interest rates is a good indicator of its capability to perform in a volatile rate environment.  We mitigate the impact of interest rate volatility to the Bank by managing our rate sensitivity under various scenarios.

The Federal Reserve Board (“FRB”) held rates unchanged in the first quarter of 2024, which was widely expected by market participants.  The timing of rate cuts and implied Federal Funds Rate for 2024 have shifted, with a current outlook for higher rates for a longer time given an increase in the latest Consumer Price Index (“CPI”) data and continued economic activity.  The FRB continued to shrink its balance sheet, ending 2023 at $7.7 trillion, down from a peak of $8.7 trillion in March 2023.

We manage interest rate risk within guidelines established by policy which are intended to limit the amount of rate exposure.  In practice, we seek to manage our interest rate risk exposure within our guidelines so that such exposure does not pose a material risk to our future earnings.  We manage various market risks in the normal course of our operations, including credit, liquidity risk, and interest-rate risk.  Other types of market risk, such as foreign currency exchange risk and commodity price risk, do not arise in the normal course of our business activities and operations.  In addition, since we do not hold a trading portfolio, we are not exposed to significant market risk from trading activities.  Our interest rate risk exposures at March 31, 2024 and December 31, 2023 are outlined in the table below.

Our net income can be significantly influenced by a variety of external factors, including: overall economic conditions, policies and actions of regulatory authorities, the amounts of and rates at which assets and liabilities reprice, variances in prepayment of loans and securities other than those that are assumed, early withdrawal of deposits, exercise of call options on borrowings or securities, competition, a general rise or decline in interest rates, changes in the slope of the yield-curve, changes in historical relationships between indices (such as SOFR and Prime), and balance sheet growth or contraction.  Our asset-liability committee seeks to manage interest rate risk under a variety of rate environments by structuring our on-balance sheet and off-balance sheet positions, which includes interest rate swap derivatives as discussed in Note 19 of our consolidated financial statements found in in our Annual Report on Form 10-K for the year ended December 31, 2023.  We seek to monitor and manage interest rate risk within approved policy guidelines and limits.  Asset and liability modeling and tracking is performed and presented to the asset-liability committee and the Board of Directors no less than quarterly. The presentations discuss our current and historical interest rate risk posture, shifts in the balance sheet composition, and the impact of interest rate movements on earnings and equity.  Our current balance sheet is a moderately asset sensitive profile, as our variable rate assets reprice faster than our longer duration, low beta deposit base. The market events of failed liquidity management at other banks have been discussed and reviewed by the asset-liability committee. The committee concluded that we continue to have a strong liquidity position and no new liquidity risks were identified.  Prudently, we added new measures to assess liquidity risk and enhanced our reports to segment deposits by insured, uninsured, collateralized deposits; and monitor the bank’s funding sources and uses on a regular basis.

We also have a Risk Committee, chaired by our Chief Risk Officer, which reports no less than quarterly to senior management as well as our Board of Directors regarding compliance with risk tolerance limits, key risk factor changes, both internally and externally, due to portfolio changes as well as market conditions. Our enterprise risk management framework is governed by this committee, with input being provided by line of business managers, senior management and the Board.

We use simulation analysis to quantify the impact of various rate scenarios on our net interest income. Specific cash flows, repricing characteristics, and embedded options of the assets and liabilities held by us are incorporated into the simulation model. Earnings at risk are calculated by comparing the net interest income of a stable interest rate environment to the net interest income of a different interest rate environment in order to determine the percentage change. As of March 31, 2024, our net interest income profile remained sensitive to earnings gains (in both dollars and percentage) should interest rates rise.  Our profile is slightly more asset sensitive compared to December 31, 2023, due to a decrease in operating borrowings from principal return on Assets, mild increase in funding, and cashflow from earnings.

58

The following table summarizes the effect on annual income before income taxes based upon an immediate increase or decrease in interest rates of 0.5%, 1.0%, and 2.0%, with no change in the slope of the yield curve.  

	Analysis of Net Interest Income Sensitivity
	Immediate Changes in Rates
(Dollars in thousands)		(2.0)	%		(1.0)	%		(0.5)	%		0.5	%		1.0	%		2.0	%
March 31, 2024
Dollar change	$	(39,454)		$	(19,666)		$	(9,736)		$	10,024		$	20,139		$	38,549
Percent change		(15.4)	%		(7.7)	%		(3.8)	%		3.9	%		7.9	%		15.1	%
December 31, 2023
Dollar change	$	(36,337)		$	(18,117)		$	(8,982)		$	9,354		$	18,818		$	36,453
Percent change		(14.7)	%		(7.3)	%		(3.6)	%		3.8	%		7.6	%		14.7	%

The amounts and assumptions used in the simulation model should not be viewed as indicative of expected actual results.  Actual results will differ from simulated results due to timing, magnitude, balance sheet composition and frequency of interest rate changes as well as changes in market conditions and management strategies.  The above results do not take into account any management action to mitigate potential risk.

Effects of Inflation

In management’s opinion, although changes in interest rates affect our financial condition to a far greater degree than changes in the inflation rate, we monitor both.  The annual US inflation rate for March 2024 was 3.5%, up from 3.4% quarter-over-quarter, while Core CPI continued to decline to 3.8%.  Management believes the inflation rate will continue to trend down, albeit at a much slower rate than 2023.  The downside risks of high inflation put upwards pressure to our expenses, which could impact our profits.  Furthermore, higher costs of living weaken the financial condition of our borrowers which could affect our credit profile.  Inflation has declined to a comfortable level and has minimal direct impact to our results.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Chief Executive Officer and Chief Financial Officer have evaluated the effectiveness of the design and operation of the Company’s disclosure controls and procedures, as defined in Rule 13a-15(e) promulgated under the Securities and Exchange Act of 1934, as amended, as of March 31, 2024.  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that as of March 31, 2024, the Company’s internal controls were effective to ensure that information required to be disclosed by the Company in reports that it files or submits under the Securities and Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified.

There were no changes in the Company’s internal controls over financial reporting during the quarter ended March 31, 2024, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

The design of any system of controls and procedures is based in part upon certain assumptions about the likelihood of future events. There can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions, regardless of how remote.

59

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

The Company and its subsidiaries, from time to time, are involved in collection suits in the ordinary course of business against its debtors and are defendants in legal actions arising from normal business activities.  Management, after consultation with legal counsel, believes that the ultimate liabilities, if any, resulting from these actions will not have a material adverse effect on the financial position of the Bank or on the consolidated financial position of the Company.

Item 1.A.  Risk Factors

Investing in shares of our common stock involves certain risks, including those identified and described in Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, as well as cautionary statements contained in this Quarterly Report, on Form 10-Q, including those under the caption “Cautionary Note Regarding Forward-Looking Statements.”

There have been no material changes to the risk factors previously disclosed in the Company’s (i) Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds

Stock Repurchases

In December 2023, our board of directors authorized the repurchase of up to 2,234,896 shares of our common stock (the “Repurchase Program”). The Company received notice of non-objection in January 2024 from the Federal Reserve Bank of Chicago for the Repurchase Program. Under the Repurchase Program, repurchases may be made through December 31, 2024, will not exceed $17.50 per share, and the aggregate value of share repurchases will not exceed $39.1 million. We may make repurchases under the Repurchase Program from time to time through open market purchases, trading plans established in accordance with SEC rules, privately negotiated transactions, or by other means.

The actual means and timing of any repurchases, quantity of purchased shares and prices will be, subject to certain limitations, at the discretion of management and will depend on a number of factors, including, without limitation, market prices of our common stock, general market and economic conditions, and applicable legal and regulatory requirements.   Repurchases under the Repurchase Program may be initiated, discontinued, suspended or restarted at any time provided that repurchases under the Repurchase Program after December 31, 2024, would require Federal Reserve non-objection or approval.  We are not obligated to repurchase any shares under the Repurchase Program.    

The following table presents our stock repurchases for the quarter ended March 31, 2024.

				Total Number of	Maximum Number
	Total			Shares Purchased	of Shares that May
	Number of		Average	as Part of Publicly	Yet Be
	Shares		Price Paid	Announced Plans	Purchased Under
	Purchased (a)		per Share (b)	or Programs (c)1	the Plans or Programs (d)
January 1, 2024 - January 31, 2024	-	$	-	-	2,234,896
February 1, 2024 - February 29, 2024	-		-	-	2,234,896
March 1, 2024 - March 31, 2024	-		-	-	2,234,896
Total	-	$	-	-	2,234,896

¹ We announced our Repurchase Program, which will expire on December 31, 2024 unless further extended as described above, in our Current Report on Form 8-K filed on January 3, 2024, and 2,234,896 shares remained available for repurchase under the Repurchase Program as of March 31, 2024.

Item 3.  Defaults Upon Senior Securities

None.

60

Item 4.  Mine Safety Disclosures

Not applicable.

Item 5.  Other Information

Trading Plans

During the three months ended March 31, 2024, no director or “officer” of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

61

Item 6.  Exhibits

Exhibits:

10.1	Employment Agreement between Mr. Gary Collins and Old Second Bancorp, Inc. dated March 20, 2024 (incorporated by reference to Exhibit 10.1 to the Form 8-K filed with the SEC on March 26, 2024).
31.1	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a).
31.2	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a).
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) Consolidated Balance Sheets at March 31, 2024 and December 31, 2023; (ii) Consolidated Statements of Income for the three months ended March 31, 2024 and 2023; (iii) Consolidated Statements of Comprehensive Income (Loss) for the three months ended March 31, 2024 and 2023; (iv) Consolidated Statements of Cash Flows for the three months ended March 31, 2024 and 2023; (v) Consolidated Statements of Stockholders’ Equity for the three months ended March 31, 2024 and 2023; and (vi) Notes to Consolidated Financial Statements, tagged as blocks of text and in detail.
104	Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document).

62

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	OLD SECOND BANCORP, INC.
		BY:	/s/ James L. Eccher
			James L. Eccher
			Chairman and Chief Executive Officer
			(principal executive officer)
		BY:	/s/ Bradley S. Adams
			Bradley S. Adams
			Executive Vice President, Chief Operating Officer and Chief Financial Officer
			(principal financial and accounting officer)
DATE: May 9, 2024

63

EX-31.1

Exhibit 31.1

I, James L. Eccher, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Old Second Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purpose in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:   May 9, 2024	/s/ James L. Eccher
	James L. Eccher
	Chairman and Chief Executive Officer

1

EX-31.2

Exhibit 31.2

I, Bradley S. Adams, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Old Second Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purpose in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:     May 9, 2024	/s/ Bradley S. Adams
	Bradley S. Adams
	Executive Vice President, Chief Operating Officer and Chief Financial Officer

1

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Old Second Bancorp, Inc. (the “Company”) on Form 10-Q, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James L. Eccher, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Ay 13
May 9, 2024	/s/ James L. Eccher
	James L. Eccher
	Chairman and Chief Executive Officer (principal executive officer)

1

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Old Second Bancorp, Inc. (the “Company”) on Form 10-Q, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Bradley S. Adams, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

May 9, 2024	/s/ Bradley S. Adams
	Bradley S. Adams
	Executive Vice President, Chief Operating Officer and Chief Financial Officer (principal financial and accounting officer)

1

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	May 03, 2024
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2024
Entity File Number	000-10537
Entity Registrant Name	OLD SECOND BANCORP INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3143493
Entity Address, Address Line One	37 South River Street
Entity Address, City or Town	Aurora
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60507
City Area Code	630
Local Phone Number	892-0202
Title of 12(b) Security	Common Stock
Trading Symbol	OSBC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		44,845,629
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000357173
Amendment Flag	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets
Cash and due from banks	$ 48,841	$ 55,534
Interest earning deposits with financial institutions	49,253	44,611
Cash and cash equivalents	98,094	100,145
Securities available-for-sale, at fair value	1,168,797	1,192,829
Federal Home Loan Bank Chicago ("FHLBC") and Federal Reserve Bank Chicago ("FRBC") stock	28,518	33,355
Loans held-for-sale	1,072	1,322
Total Loans	3,969,411	4,042,953
Less: allowance for credit losses on loans	44,113	44,264
Net loans	3,925,298	3,998,689
Premises and equipment, net	81,290	79,310
Other real estate owned	5,123	5,123
Mortgage servicing rights, at fair value	10,564	10,344
Goodwill	86,478	86,478
Core deposit intangible	10,637	11,217
Bank-owned life insurance ("BOLI")	110,490	109,318
Deferred tax assets, net	31,699	31,077
Other assets	58,012	63,592
Total assets	5,616,072	5,722,799
Deposits:
Noninterest bearing demand	1,799,927	1,834,891
Interest bearing:
Savings, NOW, and money market	2,221,696	2,207,949
Time	586,652	527,906
Total deposits	4,608,275	4,570,746
Securities sold under repurchase agreements	33,546	26,470
Other short-term borrowings	220,000	405,000
Junior subordinated debentures	25,773	25,773
Subordinated debentures	59,403	59,382
Other liabilities	72,916	58,147
Total liabilities	5,019,913	5,145,518
Stockholders' Equity
Common stock	44,908	44,705
Additional paid-in capital	203,129	202,223
Retained earnings	412,388	393,311
Accumulated other comprehensive loss	(63,361)	(62,781)
Treasury stock	(905)	(177)
Total stockholders' equity	596,159	577,281
Total liabilities and stockholders' equity	$ 5,616,072	$ 5,722,799

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Consolidated Balance Sheets
Common stock, Par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, Shares authorized	60,000,000	60,000,000
Common stock, Shares issued	44,907,619	44,705,150
Common stock, Shares outstanding	44,845,629	44,697,917
Treasury stock, Shares	61,990	7,233

XML

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest and dividend income
Loans, including fees	$ 62,673	$ 57,210
Loans held-for-sale	14	12
Securities:
Taxable	8,092	10,735
Tax exempt	1,306	1,337
Dividends from FHLBC and FRBC stock	635	280
Interest bearing deposits with financial institutions	610	585
Total interest and dividend income	73,330	70,159
Interest expense
Savings, NOW, and money market deposits	4,037	1,149
Time deposits	4,041	664
Securities sold under repurchase agreements	86	9
Other short-term borrowings	4,557	2,345
Junior subordinated debentures	280	279
Subordinated debentures	546	546
Senior notes		994
Notes payable and other borrowings		87
Total interest expense	13,547	6,073
Net interest and dividend income	59,783	64,086
Provision for credit losses	3,500	3,501
Net interest and dividend income after provision for credit losses	56,283	60,585
Noninterest income
Mortgage servicing rights mark to market gain (loss)	94	(525)
Net gain on sales of mortgage loans	314	306
Securities gains (losses), net	1	(1,675)
Change in cash surrender value of BOLI	1,172	242
Card related income	2,376	2,244
Other income	1,030	1,489
Total noninterest income	10,501	7,350
Noninterest expense
Salaries and employee benefits	24,312	22,248
Occupancy, furniture and equipment	3,927	3,475
Computer and data processing	2,255	1,774
FDIC insurance	667	584
Net teller & bill paying	521	502
General bank insurance	309	305
Amortization of core deposit intangible	580	624
Advertising expense	192	142
Card related expense	1,277	1,216
Legal fees	226	319
Consulting & management fees	336	790
Other real estate expense, net	46	306
Other expense	3,593	3,637
Total noninterest expense	38,241	35,922
Income before income taxes	28,543	32,013
Provision for income taxes	7,231	8,406
Net income	$ 21,312	$ 23,607
Basic earnings per share	$ 0.48	$ 0.53
Diluted earnings per share	0.47	0.52
Dividends declared per share	$ 0.05	$ 0.05
Wealth management
Noninterest income
Service charges on deposits	$ 2,561	$ 2,270
Service charges on deposits
Noninterest income
Service charges on deposits	2,415	2,424
Secondary mortgage fees
Noninterest income
Service charges on deposits	50	59
Mortgage servicing income
Noninterest income
Service charges on deposits	$ 488	$ 516

XML

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Consolidated Statements of Comprehensive Income (Loss)
Net Income (Loss)	$ 21,312	$ 23,607
Unrealized holding (losses) gains on available-for-sale securities arising during the period	(876)	16,210
Related tax benefit (expense)	245	(4,536)
Holding (losses) gains, after tax, on available-for-sale securities	(631)	11,674
Reclassification adjustment for the net gains (losses) realized during the period
Net realized gains (losses)	1	(1,675)
Related tax benefit		471
Net realized gains (losses) after tax	1	(1,204)
Other comprehensive (loss) income on available-for-sale securities	(632)	12,878
Changes in fair value of derivatives used for cash flow hedges	52	1,602
Related tax expense		(456)
Other comprehensive income on cash flow hedges	52	1,146
Total other comprehensive (loss) income	(580)	14,024
Total comprehensive income	$ 20,732	$ 37,631

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net income	$ 21,312	$ 23,607
Adjustments to reconcile net income to net cash provided by operating activities:
Net premium / discount amortization on securities	821	799
Securities (gains) losses, net	(1)	1,675
Provision for credit losses	3,500	3,501
Originations of loans held-for-sale	(9,103)	(10,206)
Proceeds from sales of loans held-for-sale	9,536	9,957
Net gains on sales of mortgage loans	(314)	(306)
Mortgage servicing rights mark to market (gain) loss	(94)	525
Net accretion of discount on loans and unfunded commitments	(157)	(1,180)
Net change in cash surrender value of BOLI	(1,172)	(242)
Net losses on sale of other real estate owned		28
Provision for other real estate owned valuation losses		269
Depreciation of fixed assets and amortization of leasehold improvements	1,350	1,046
Net gains on disposal and transfer of fixed assets		(434)
Amortization of core deposit intangibles	580	624
Change in current income taxes receivable	4,825	7,043
Deferred tax (benefit) expense	(375)	1,442
Change in accrued interest receivable and other assets	1,543	2,635
Accretion of purchase accounting adjustment on time deposits	(78)	(367)
Change in accrued interest payable and other liabilities	14,059	(6,344)
Stock based compensation	1,058	932
Net cash provided by operating activities	47,290	35,004
Cash flows from investing activities
Proceeds from maturities and calls, including pay down of securities available-for-sale	32,665	37,718
Proceeds from sales of securities available-for-sale	5,331	66,170
Purchases of securities available-for-sale	(15,661)	(4,186)
Proceeds from redemptions (purchases) of FHLBC/FRBC stock	4,837	(9,675)
Net change in loans	70,048	(132,445)
Proceeds from sales of other real estate owned, net of participations and improvements		300
Proceeds from disposition of premises and equipment		756
Net purchases of premises and equipment	(3,330)	(1,560)
Net cash provided by (used in) investing activities	93,890	(42,922)
Cash flows from financing activities
Net change in deposits	37,607	(213,136)
Net change in securities sold under repurchase agreements	7,076	(4,259)
Net change in other short-term borrowings	(185,000)	225,000
Repayment of term note		(9,000)
Vesting of restricted stock	99
Dividends paid on common stock	(2,237)	(2,237)
Purchase of treasury stock	(776)	(605)
Net cash (used in) provided by financing activities	(143,231)	(4,237)
Net change in cash and cash equivalents	(2,051)	(12,155)
Cash and cash equivalents at beginning of period	100,145	115,177
Cash and cash equivalents at end of period	$ 98,094	$ 103,022

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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at Dec. 31, 2022	$ 44,705	$ 202,276	$ 310,512	$ (93,124)	$ (3,228)	$ 461,141
Increase (Decrease) in Stockholders' Equity
Net income			23,607			23,607
Other comprehensive income loss, net of tax				14,024		14,024
Dividends declared on common stock			(2,229)			(2,229)
Vesting of restricted stock		(3,087)			3,087
Stock based compensation		932				932
Purchase of treasury stock from taxes withheld on stock awards					(605)	(605)
Balance at Mar. 31, 2023	44,705	200,121	331,890	(79,100)	(746)	496,870
Balance at Dec. 31, 2023	44,705	202,223	393,311	(62,781)	(177)	577,281
Increase (Decrease) in Stockholders' Equity
Net income			21,312			21,312
Other comprehensive income loss, net of tax				(580)		(580)
Dividends declared on common stock			(2,235)			(2,235)
Vesting of restricted stock	203	(152)			48	99
Stock based compensation		1,058				1,058
Purchase of treasury stock from taxes withheld on stock awards					(776)	(776)
Balance at Mar. 31, 2024	$ 44,908	$ 203,129	$ 412,388	$ (63,361)	$ (905)	$ 596,159

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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	$ 577,281	$ 461,141
Other comprehensive (loss) income, net of tax	(580)	14,024
Balance	$ 596,159	$ 496,870
Dividend declared and paid (per share)	$ 0.05	$ 0.05
Total Accumulated Other Comprehensive Income/(Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	$ (62,781)	$ (93,124)
Other comprehensive (loss) income, net of tax	(580)	14,024
Balance	(63,361)	(79,100)
Accumulated Unrealized Gain (Loss) on Securities Available-for-Sale
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(60,590)	(88,892)
Other comprehensive (loss) income, net of tax	(632)	12,878
Balance	(61,222)	(76,014)
Accumulated Unrealized Gain (Loss) on Derivative Instruments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(2,191)	(4,232)
Other comprehensive (loss) income, net of tax	52	1,146
Balance	$ (2,139)	$ (3,086)

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Basis of Presentation and Changes in Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Basis of Presentation and Changes in Significant Accounting Policies

Summary of Significant Accounting Policies

Note 1 – Basis of Presentation and Changes in Significant Accounting Policies

The accounting policies followed in the preparation of the interim consolidated financial statements are consistent with those used in the preparation of the annual financial information.  The interim consolidated financial statements reflect all normal and recurring adjustments that are necessary, in the opinion of management, for a fair statement of results for the interim period presented.  Results for the period ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.  These interim consolidated financial statements and accompanying notes are unaudited and should be read in conjunction with the audited financial statements and notes included in Old Second Bancorp, Inc.’s (the “Company”) annual report on Form 10-K for the year ended December 31, 2023.  Unless otherwise indicated, dollar amounts in the tables contained in the notes to the consolidated financial statements are in thousands.  Certain items in prior periods have been reclassified to conform to the current presentation.

The Company’s consolidated financial statements are prepared in accordance with United States generally accepted accounting principles (“GAAP”) and follow general practices within the banking industry.  Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes.  These estimates, assumptions, and judgments are based on information available as of the date of the consolidated financial statements.  Future changes in information may affect these estimates, assumptions, and judgments, which, in turn, may affect amounts reported in the consolidated financial statements.

Recent Accounting Pronouncements

The following is a summary of recent accounting pronouncements that have impacted or could potentially affect the Company:  

ASU 2023-06 – On October 9, 2023, the FASB issued ASU 2023-06 “Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative.” The amendments in the ASU modify the disclosure or presentation requirements of a variety of Topics in the Codification. Certain of the amendments represent clarifications to, or technical corrections of, the current requirements. Each amendment in the ASU will only become effective if the SEC removes the related disclosure or presentation requirement from its existing regulations by June 30, 2027. The amendments in this ASU are not expected to have a material impact on the financial statements of the Company.

ASU 2023-09 – On December 14, 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. The amendments require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation, and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate). The amendments require that all entities disclose on an annual basis the following information about income taxes paid: (1) The amount of income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes, and (2) The amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than 5 percent of total income taxes paid (net of refunds received). The amendments also require that all entities disclose the following information: (1) Income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign, and (2) Income tax expense (or benefit) from continuing operations disaggregated by federal (national), state, and foreign. The ASU is effective for public business entities for annual periods beginning after December 15, 2024.  Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments should be applied on a prospective basis. Retrospective application is permitted.  The Company will adopt this ASU for the reporting period beginning January 1, 2025, and does not expect the amendments to have a material impact to the financial statements of the Company.

ASU 2024-01 – On March 21, 2024, the FASB issued ASU 2024-01 “Compensation - Stock Compensation (Topic 718) - Scope Application of Profits Interest and Similar Awards” which clarifies how an entity determines whether a profits interest or similar award is within the scope of Topic 718, or is not a share-based payment arrangement and therefore within the scope of other guidance. ASU 2024-01 provides an illustrative example with multiple fact patterns and also amends certain language in the “Scope” and “Scope Exceptions” sections of Topic 718 to improve its clarity and operability without changing the guidance. Entities can apply the amendments either retrospectively to all prior periods presented in the financial statements or prospectively to profits interest and similar awards granted or modified on or after the date of adoption. If prospective application is elected, an entity must disclose the nature of and reason for the change in accounting principle. ASU 2024-01 is effective January 1, 2025, including interim periods, and is not expected to have a material impact the financial statements of the Company.

ASU 2024-02 – On March 29, 2024, the FASB issued ASU 2024-02 “Codification Improvements” amends the Codification to remove references to various concept statements and impacts a variety of topics in the Codification. The amendments apply to all reporting entities within the scope of the affected accounting guidance, but in most instances the references removed are extraneous and not required to understand or apply the guidance. Generally, the amendments in ASU 2024-02 are not intended to result in significant accounting changes for most entities. ASU 2024-02 is effective January 1, 2025 and is not expected to have a material impact the financial statements of the Company.

Change in Significant Accounting Policies

Significant accounting policies are presented in Note 1 to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.  These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the consolidated financial statements and how those values are determined.  During the first quarter of 2024, the Company had no changes to significant accounting policies or estimates.

Subsequent Events

On April 16, 2024, our Board of Directors declared a cash dividend of $0.05 per share of common stock payable on May 6, 2024, to stockholders of record as of April 26, 2024; dividends of $2.2 million were paid to stockholders on May 6, 2024.

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Securities

3 Months Ended

Mar. 31, 2024

Securities

Securities

Note 2 – Securities

Investment Portfolio Management

Our investment portfolio serves the liquidity needs and income objectives of the Company.  While the portfolio serves as an important component of the overall liquidity management at the Bank, portions of the portfolio also serve as income producing assets.  The size and composition of the portfolio reflects liquidity needs, loan demand and interest income objectives.  Portfolio size and composition will be adjusted from time to time.  While a significant portion of the portfolio consists of readily marketable securities to address liquidity, other parts of the portfolio may reflect funds invested pending future loan demand or to maximize interest income without undue interest rate risk.

Investments are comprised of debt securities and non-marketable equity investments.  Securities available-for-sale are carried at fair value.  Unrealized gains and losses, net of tax, on securities available-for-sale are reported as a separate component of equity.  This balance sheet component changes as interest rates and market conditions change.  Unrealized gains and losses are not included in the calculation of regulatory capital.  

Federal Home Loan Bank of Chicago (“FHLBC”) and Federal Reserve Bank of Chicago (“FRBC”) stock are considered nonmarketable equity investments.  FHLBC stock was recorded at $13.6 million at March 31, 2024 and $18.5 million at December 31, 2023.  FRBC stock was recorded at $14.9 million at March 31, 2024 and December 31, 2023.

The following tables summarize the amortized cost and fair value of the securities portfolio at March 31, 2024, and December 31, 2023, and the corresponding amounts of gross unrealized gains and losses:

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
March 31, 2024	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,712	$	-	$	(3,712)	$	171,000
U.S. government agencies		59,829		-		(2,850)		56,979
U.S. government agencies mortgage-backed		114,061		-		(12,986)		101,075
States and political subdivisions		233,343		682		(11,283)		222,742
Collateralized mortgage obligations		431,084		272		(51,753)		379,603
Asset-backed securities		69,666		37		(2,996)		66,707
Collateralized loan obligations		171,131		52		(492)		170,691
Total securities available-for-sale	$	1,253,826	$	1,043	$	(86,072)	$	1,168,797

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
December 31, 2023	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,602	$	-	$	(5,028)	$	169,574
U.S. government agencies		60,011		-		(3,052)		56,959
U.S. government agencies mortgage-backed		118,492		-		(12,122)		106,370
States and political subdivisions		236,072		1,325		(10,332)		227,065
Collateralized mortgage obligations		442,987		421		(50,864)		392,544
Asset-backed securities		71,616		42		(3,222)		68,436
Collateralized loan obligations		173,201		30		(1,350)		171,881
Total securities available-for-sale	$	1,276,981	$	1,818	$	(85,970)	$	1,192,829

¹ Excludes accrued interest receivable of $6.3 million and $6.6 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

The fair value, amortized cost and weighted average yield of debt securities at March 31, 2024, by contractual maturity, are listed in the table below.  Securities not due at a single maturity date are shown separately.

			Weighted
	Amortized		Average		Fair
Securities available-for-sale	Cost		Yield		Value
Due in one year or less	$	197,825	1.05	%	$	193,861
Due after one year through five years		53,675	1.92			50,940
Due after five years through ten years		56,283	2.77			51,681
Due after ten years		160,101	3.11			154,239
		467,884	2.06			450,721
Mortgage-backed and collateralized mortgage obligations		545,145	2.43			480,678
Asset-backed securities		69,666	4.06			66,707
Collateralized loan obligations		171,131	6.84			170,691
Total securities available-for-sale	$	1,253,826	2.99	%	$	1,168,797

At March 31, 2024, the Company had no securities issued from any one originator, other than the U.S. Government and its agencies, which individually amounted to over 10% of the Company’s stockholders’ equity.

Securities with unrealized losses with no corresponding allowance for credit losses at March 31, 2024 and December 31, 2023, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows (in thousands except for number of securities):

	Less than 12 months					12 months or more
March 31, 2024	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized		Fair		Number of	Unrealized		Fair		Number of	Unrealized		Fair
Securities available-for-sale	Securities	Losses		Value		Securities	Losses		Value		Securities	Losses		Value
U.S. Treasuries	-	$	-	$	-	4	$	3,712	$	171,000	4	$	3,712	$	171,000
U.S. government agencies	-		-		-	9		2,850		56,979	9		2,850		56,979
U.S. government agencies mortgage-backed	-		-		-	128		12,986		101,075	128		12,986		101,075
States and political subdivisions	20		299		63,127	35		10,984		126,955	55		11,283		190,082
Collateralized mortgage obligations	-		-		-	144		51,753		364,263	144		51,753		364,263
Asset-backed securities	-		-		-	18		2,996		60,864	18		2,996		60,864
Collateralized loan obligations	2		7		10,396	15		485		99,070	17		492		109,466
Total securities available-for-sale	22	$	306	$	73,523	353	$	85,766	$	980,206	375	$	86,072	$	1,053,729

	Less than 12 months					12 months or more
December 31, 2023	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized			Fair	Number of	Unrealized			Fair	Number of	Unrealized			Fair
Securities available-for-sale	Securities	Losses			Value	Securities	Losses			Value	Securities	Losses			Value
U.S. Treasuries	-	$	-	$	-	4	$	5,028	$	169,574	4	$	5,028	$	169,574
U.S. government agencies	-		-		-	9		3,052		56,959	9		3,052		56,959
U.S. government agencies mortgage-backed	-		-		-	128		12,122		106,370	128		12,122		106,370
States and political subdivisions	12		137		27,974	25		10,195		106,138	37		10,332		134,112
Collateralized mortgage obligations	2		8		734	143		50,856		376,236	145		50,864		376,970
Asset-backed securities	-		-		-	19		3,222		63,941	19		3,222		63,941
Collateralized loan obligations	-		-		-	25		1,350		150,902	25		1,350		150,902
Total securities available-for-sale	14	$	145	$	28,708	353	$	85,825	$	1,030,120	367	$	85,970	$	1,058,828

Each quarter, we perform an analysis to determine if any of the unrealized losses on securities available-for-sale are comprised of credit losses as compared to unrealized losses due to market interest rate adjustments.  Our assessment includes a review of the unrealized loss for each security issuance held; the financial condition and near-term prospects of the issuer, including external credit ratings and recent downgrades; and our ability and intent to hold the security for a period of time sufficient for a recovery in value. We also consider the extent to which the securities are issued by the federal government or its agencies, and any guarantee of issued amounts by those agencies.  The portfolio continues to consist of a mix of fixed and floating-rate, high quality securities, largely rated AA (or better), displaying an overall effective duration of approximately 3.0 years.  No credit losses were determined to be present as of March 31, 2024, as there was no credit quality deterioration noted.  Therefore, no provision for credit losses on securities was recognized for the first quarter of 2024.

The following table presents net realized losses on securities available-for-sale for three months ended:

		Three Months Ended
		March 31,
Securities available-for-sale	2024			2023
Proceeds from sales of securities	$	5,331		$	66,170
Gross realized gains on securities	$	1		$	-
Gross realized losses on securities		-			(1,675)
Net realized gains (losses)	$	1		$	(1,675)
Income tax benefit on net realized losses	$	-		$	471
Effective tax rate applied		0.0	%		28.1	%

As of March 31, 2024, securities valued at $804.9 million were pledged for borrowings, and for other purposes, a decrease from $810.2 million of securities pledged at year-end 2023.  

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Loans and Allowance for Credit Losses on Loans

3 Months Ended

Mar. 31, 2024

Loans and Allowance for Credit Losses on Loans

Loans and Allowance for Credit Losses on Loans

Note 3 – Loans and Allowance for Credit Losses on Loans

Major segments of loans were as follows:

	March 31, 2024		December 31, 2023
Commercial	$	796,552	$	841,697
Leases		425,615		398,223
Commercial real estate – investor		1,018,382		1,034,424
Commercial real estate – owner occupied		782,603		796,538
Construction		169,174		165,380
Residential real estate – investor		51,522		52,595
Residential real estate – owner occupied		220,223		226,248
Multifamily		387,479		401,696
HELOC		98,762		103,237
Other 1		19,099		22,915
Total loans		3,969,411		4,042,953
Allowance for credit losses on loans		(44,113)		(44,264)
Net loans 2	$	3,925,298	$	3,998,689

¹ The “Other” segment includes consumer loans and overdrafts in this table and in subsequent tables within Note 3 – Loans and Allowance for Credit Losses on Loans.

² Excludes accrued interest receivable of $19.4 million and $20.5 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

It is the policy of the Company to review each prospective credit prior to making a loan in order to determine if an adequate level of security or collateral has been obtained.  The type of collateral, when required, will vary from liquid assets to real estate.  The Company seeks to assure access to collateral, in the event of borrower default, through adherence to lending laws, the Company’s lending standards and credit monitoring procedures.  Although the Bank makes loans primarily within its market area, there are no significant concentrations of loans where the customers’ ability to honor loan terms is dependent upon a single economic sector.  The real estate related categories listed above represent 68.7% and 68.8% of the portfolio at March 31, 2024, and December 31, 2023, respectively, and include a mix of owner occupied and non-owner occupied commercial real estate, residential, construction and multifamily loans.  

The following tables represent the activity in the allowance for credit losses for loans, or the ACL, for the three months ended March 31, 2024 and 2023:

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2024
Commercial	$	3,998	$	2,326	$	15	$	73	$	6,382
Leases		2,952		(33)		-		40		2,959
Commercial real estate – investor		17,105		(902)		16		83		16,270
Commercial real estate – owner occupied		12,280		2,580		3,887		19		10,992
Construction		1,038		59		-		-		1,097
Residential real estate – investor		669		(35)		-		2		636
Residential real estate – owner occupied		1,821		(169)		-		8		1,660
Multifamily		2,728		(135)		-		-		2,593
HELOC		1,656		(165)		-		17		1,508
Other		17		18		70		51		16
Total	$	44,264	$	3,544	$	3,988	$	293	$	44,113

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2023
Commercial	$	11,968	$	(581)	$	27	$	151	$	11,511
Leases		2,865		774		882		9		2,766
Commercial real estate – investor		10,674		4,569		-		17		15,260
Commercial real estate – owner occupied		15,001		573		-		2		15,576
Construction		1,546		(501)		-		-		1,045
Residential real estate – investor		768		(41)		-		19		746
Residential real estate – owner occupied		2,046		(334)		-		10		1,722
Multifamily		2,453		212		-		-		2,665
HELOC		1,806		(47)		-		29		1,788
Other		353		28		113		45		313
Total	$	49,480	$	4,652	$	1,022	$	282	$	53,392

At March 31, 2024, our allowance for credit losses (“ACL”) on loans totaled $44.1 million, and our ACL on unfunded commitments, included in other liabilities, totaled $2.7 million.  During the first three months of 2024, we recorded net provision expense of $3.5 million based on historical loss rate updates driven by higher charge offs in commercial real estate-investor, downward risk rating migration, and our assessment of estimated future credit losses. The ACL on loans excludes $2.7 million, $2.7 million and $3.8 million of allowance for unfunded commitments as of March 31, 2024, December 31, 2023, and March 31, 2023, respectively, recorded within other liabilities.  

Generally, the Bank considers a loan to be collateral dependent when, based on current information and events, it is probable that foreclosure could be initiated. Additionally, the Bank will review all loans meeting the criteria for individual analysis, to determine if repayment or satisfaction of the loan is expected through the sale of collateral. This will generally be the case for credits with high loan-to-values. Exceptions to this policy would include loans with guarantors or sponsors that have the means and willingness to support the obligation. Non-accruing loans with an outstanding balance of $500,000 or more are assessed on an individual loan level basis. When a financial asset is deemed collateral-dependent, the level of credit loss is measured by the difference between amortized cost of the financial asset and the fair value of collateral adjusted for estimated cost to sell. The Company had $59.3 million and $63.1 million of collateral dependent loans secured by real estate or business assets as of March 31, 2024, and December 31, 2023, respectively.

The following tables present the collateral dependent loans and the related ACL allocated by segment of loans as of March 31, 2024 and December 31, 2023:

			Accounts								ACL
March 31, 2024	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	-	$	-	$	571	$	1,354	$	1,925	$	1,356
Leases		-		-		-		-		-		-
Commercial real estate – investor		16,128		-		-		-		16,128		3,569
Commercial real estate – owner occupied		30,847		-		-		-		30,847		1,239
Construction		7,119		-		-		-		7,119		-
Residential real estate – investor		409		-		-		-		409		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,373		-		-		-		1,373		-
HELOC		39		-		-		-		39		-
Total	$	57,421	$	-	$	571	$	1,354	$	59,346	$	6,164
			Accounts								ACL
December 31, 2023	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	837	$	797	$	-	$	-	$	1,634	$	2
Leases		-		-		321		-		321		320
Commercial real estate – investor		15,735		-		-		-		15,735		3,656
Commercial real estate – owner occupied		34,894		-		-		-		34,894		3,900
Construction		7,162		-		-		-		7,162		-
Residential real estate – investor		422		-		-		-		422		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,402		-		-		-		1,402		-
HELOC		39		-		-		-		39		-
Total	$	61,997	$	797	$	321	$	-	$	63,115	$	7,878

Aged analysis of past due loans by segments of loans was as follows:

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
March 31, 2024	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	12,429	$	703	$	822	$	13,954	$	782,598	$	796,552	$	748
Leases		1,108		-		401		1,509		424,106		425,615		-
Commercial real estate – investor		434		-		4,966		5,400		1,012,982		1,018,382		-
Commercial real estate – owner occupied		971		3,776		22,899		27,646		754,957		782,603		-
Construction		4,220		-		7,119		11,339		157,835		169,174		-
Residential real estate – investor		-		54		249		303		51,219		51,522		-
Residential real estate – owner occupied		656		233		2,086		2,975		217,248		220,223		-
Multifamily		-		304		534		838		386,641		387,479		-
HELOC		177		237		268		682		98,080		98,762		41
Other		-		-		-		-		19,099		19,099		-
Total	$	19,995	$	5,307	$	39,344	$	64,646	$	3,904,765	$	3,969,411	$	789

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
December 31, 2023	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	982	$	-	$	1,228	$	2,210	$	839,487	$	841,697	$	1,155
Leases		599		-		347		946		397,277		398,223		-
Commercial real estate – investor		1,209		-		6,087		7,296		1,027,128		1,034,424		-
Commercial real estate – owner occupied		2,103		3,726		15,645		21,474		775,064		796,538		-
Construction		2,540		307		7,161		10,008		155,372		165,380		-
Residential real estate – investor		540		579		168		1,287		51,308		52,595		-
Residential real estate – owner occupied		553		125		1,944		2,622		223,626		226,248		-
Multifamily		1,085		-		233		1,318		400,378		401,696		-
HELOC		565		1,396		269		2,230		101,007		103,237		41
Other		-		1		-		1		22,914		22,915		-
Total	$	10,176	$	6,134	$	33,082	$	49,392	$	3,993,561	$	4,042,953	$	1,196

The table presents all nonaccrual loans as of March 31, 2024, and December 31, 2023:

Nonaccrual loan detail	March 31, 2024		With no ACL		December 31, 2023		With no ACL
Commercial	$	1,998	$	644	$	870	$	870
Leases		595		595		639		318
Commercial real estate – investor		16,128		8,568		16,572		8,926
Commercial real estate – owner occupied		30,897		8,271		34,946		8,429
Construction		7,119		7,119		7,162		7,162
Residential real estate – investor		1,299		1,299		1,331		1,331
Residential real estate – owner occupied		3,031		3,031		3,078		3,078
Multifamily		1,959		1,959		1,775		1,775
HELOC		1,298		1,298		1,210		1,210
Other		-		-		-		-
Total	$	64,324	$	32,784	$	67,583	$	33,099

The Company recognized $34,000 of interest on nonaccrual loans during the three months ended March 31, 2024.

Credit Quality Indicators

The Company categorizes loans into credit risk categories based on current financial information, overall debt service coverage, comparison to industry averages, historical payment experience, and current economic trends.  This analysis includes loans with outstanding balances or commitments greater than $50,000 and excludes homogeneous loans such as home equity lines of credit and residential mortgages.  Loans with a classified risk rating are reviewed quarterly regardless of size or loan type.  The Company uses the following definitions for classified risk ratings:

Special Mention.  Loans classified as special mention have a potential weakness that deserves management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan at some future date.

Substandard. Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any.  Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt.  They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected.  The substandard credit quality indicator includes both potential problem loans that are currently performing and nonperforming loans.

Doubtful.  Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

Credits that are not covered by the definitions above are pass credits, which are not considered to be adversely rated.

Credit quality indicators by loan segment and loan origination date at March 31, 2024 were as follows:

	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	10,284	$	313,611	$	125,215	$	28,810	$	10,497	$	19,834	$	252,098	$		$	760,349
Special Mention		-		-		3,598		3,064		111		-		14,187		-		20,960
Substandard		-		-		4,703		178		-		-		10,362		-		15,243
Total commercial		10,284		313,611		133,516		32,052		10,608		19,834		276,647		-		796,552
Leases
Pass		61,834		205,567	$	100,256		36,105		12,450		7,094		-		-		423,306
Special Mention		-		308		380		1,015		-		11		-		-		1,714
Substandard		-		-		392		203		-		-		-		-		595
Total leases		61,834		205,875		101,028		37,323		12,450		7,105		-		-		425,615
Commercial real estate – investor
Pass		46,126		200,397		341,405		170,710		94,342		101,984		20,264		-		975,228
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		1,648		4,128		2,796		5,286		17,065		12,231		-		43,154
Total commercial real estate – investor		46,126		202,045		345,533		173,506		99,628		119,049		32,495		-		1,018,382
Commercial real estate – owner occupied
Pass		7,877		137,719		151,782		185,939		85,511		124,527		1,828		-		695,183
Special Mention		-		1,638		18,249		1,452		3,104		1,710		-		-		26,153
Substandard		-		-		14,647		15,732		13,419		17,469		-		-		61,267
Total commercial real estate – owner occupied		7,877		139,357		184,678		203,123		102,034		143,706		1,828		-		782,603
Construction
Pass		10,236		42,569		77,717		26,818		95		1,747		2,525		-		161,707
Special Mention		-		-		348		-		-		-		-		-		348
Substandard		-		-		7,119		-		-		-		-		-		7,119
Total construction		10,236		42,569		85,184		26,818		95		1,747		2,525		-		169,174
Residential real estate – investor
Pass		1,101		4,925		14,269		8,516		6,137		13,704		1,506		-		50,158
Special Mention		-		-		-		65		-		-		-		-		65
Substandard		-		-		378		-		-		921		-		-		1,299
Total residential real estate – investor		1,101		4,925		14,647		8,581		6,137		14,625		1,506		-		51,522
Residential real estate – owner occupied
Pass		1,397		31,591		40,203		39,818		24,764		78,480		802		-		217,055
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		189		2,979		-		-		3,168
Total residential real estate – owner occupied		1,397		31,591		40,203		39,818		24,953		81,459		802		-		220,223
Multifamily
Pass		1,240		75,556		71,322		117,695		51,661		51,998		566		-		370,038
Special Mention		-		-		164		13,374		311		1,633		-		-		15,482
Substandard		-		-		976		-		214		769		-		-		1,959
Total multifamily		1,240		75,556		72,462		131,069		52,186		54,400		566		-		387,479
HELOC
Pass		725		2,678		2,534		449		1,545		4,297		84,886		-		97,114
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		25		-		41		292		1,290		-		1,648
Total HELOC		725		2,678		2,559		449		1,586		4,589		86,176		-		98,762
Other
Pass		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Total loans
Pass		142,395		1,017,967		926,304		615,889		287,129		403,809		375,744		-		3,769,237
Special Mention		-		1,946		22,739		18,970		3,526		3,354		14,187		-		64,722
Substandard		-		1,648		32,368		18,909		19,149		39,495		23,883		-		135,452
Total loans	$	142,395	$	1,021,561	$	981,411	$	653,768	$	309,804	$	446,658	$	413,814	$	-	$	3,969,411

Credit quality indicators by loan segment and loan origination date at December 31, 2023, were as follows:

	2023		2022		2021		2020		2019		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	318,569	$	136,668	$	35,901	$	11,983	$	18,390	$	3,426	$	298,931	$	1,408	$	825,276
Special Mention		-		2,737		707		171		-		-		4,392		-		8,007
Substandard		-		2,099		146		-		199		-		5,970		-		8,414
Total commercial		318,569		141,504		36,754		12,154		18,589		3,426		309,293		1,408		841,697
Leases
Pass		219,163		113,074	$	42,275		14,663		6,975		1,255		-		-		397,405
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		407		203		-		208		-		-		-		818
Total leases		219,163		113,481		42,478		14,663		7,183		1,255		-		-		398,223
Commercial real estate – investor
Pass		159,654		367,512		218,084		108,384		54,322		63,281		8,122		-		979,359
Special Mention		-		-		11,267		-		-		-		-		-		11,267
Substandard		-		-		838		5,327		15,658		9,648		12,327		-		43,798
Total commercial real estate – investor		159,654		367,512		230,189		113,711		69,980		72,929		20,449		-		1,034,424
Commercial real estate – owner occupied
Pass		124,059		134,383		177,553		103,109		42,839		91,062		33,243		-		706,248
Special Mention		1,650		17,415		9,585		3,128		218		3,681		-		-		35,677
Substandard		-		14,630		18,817		4,571		14,809		1,786		-		-		54,613
Total commercial real estate – owner occupied		125,709		166,428		205,955		110,808		57,866		96,529		33,243		-		796,538
Construction
Pass		42,808		66,513		32,942		100		1,593		1,083		3,186		-		148,225
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		9,993		-		7,162		-		-		17,155
Total construction		42,808		66,513		32,942		10,093		1,593		8,245		3,186		-		165,380
Residential real estate – investor
Pass		5,062		14,434		9,027		6,227		6,508		8,469		1,471		-		51,198
Special Mention		-		-		66		-		-		-		-		-		66
Substandard		-		390		-		-		408		533		-		-		1,331
Total residential real estate – investor		5,062		14,824		9,093		6,227		6,916		9,002		1,471		-		52,595
Residential real estate – owner occupied
Pass		32,574		41,528		40,335		25,322		14,233		68,277		763		-		223,032
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		191		685		2,340		-		-		3,216
Total residential real estate – owner occupied		32,574		41,528		40,335		25,513		14,918		70,617		763		-		226,248
Multifamily
Pass		55,310		79,060		123,834		72,539		12,231		40,825		562		-		384,361
Special Mention		-		168		13,425		322		1,645		-		-		-		15,560
Substandard		-		1,009		-		-		-		766		-		-		1,775
Total multifamily		55,310		80,237		137,259		72,861		13,876		41,591		562		-		401,696
HELOC
Pass		2,735		2,679		490		1,757		1,756		2,995		89,161		-		101,573
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		25		1		41		24		184		1,389		-		1,664
Total HELOC		2,735		2,704		491		1,798		1,780		3,179		90,550		-		103,237
Other
Pass		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Total loans
Pass		963,994		958,129		682,010		344,237		158,932		280,746		450,136		1,408		3,839,592
Special Mention		1,650		20,320		35,050		3,621		1,863		3,681		4,392		-		70,577
Substandard		-		18,560		20,005		20,123		31,991		22,419		19,686		-		132,784
Total loans	$	965,644	$	997,009	$	737,065	$	367,981	$	192,786	$	306,846	$	474,214	$	1,408	$	4,042,953

The gross charge-offs activity by loan type and year of origination for the three months ended March 31, 2024 were as follows:

Three months ended March 31, 2024	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial	$	-		-		-		-		-		15	$	-	$	-	$	15
Commercial real estate – investor		-		-		-		-		16		-		-		-		16
Commercial real estate – owner occupied		-				-		3,853		-		34		-		-		3,887
Other		-		-		-		-		-		70		-		-		70
Total	$	-	$	-	$	-	$	3,853	$	16	$	119		-		-	$	3,988

The Company had $378,000 and $170,000 in residential real estate loans in the process of foreclosure as of March 31, 2024 and December 31, 2023, respectively.  

There were six loans modified during the three-month period ending March 31, 2024, totaling $18.6 million in aggregate, which were experiencing financial difficulty.  There were three loans modified during the three-month period ending March 31, 2023, totaling $2.8 million in aggregate, which were experiencing financial difficulty. There were no modified loans experiencing financial difficulty in payment default as of March 31, 2024 and March 31, 2023.

The following tables present the amortized costs basis of loans at March 31, 2024, and March 31, 2023 that were both experiencing financial difficulty and modified during the period ended March 31, 2024, and March 31, 2023, by class and by type of modification.  The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below.

March 31, 2024	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	247	$	-	$	-	$	247	0.0%
Commercial real estate – investor		-		-		1,958		1,958	0.2%
Commercial real estate – owner occupied		12,244		3,309		854		16,407	2.1%
Total	$	12,491	$	3,309	$	2,812	$	18,612	0.5%

March 31, 2023	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	-	$	979	$	-	$	979	0.1%
Commercial real estate – investor		-		-		1,774		1,774	0.2%
HELOC		20		-		-		20	0.0%
Total	$	20	$	979	$	1,774	$	2,773	0.1%

¹ Payment modifications are either contractual delays in payment or a modification of the payment amount.

The Company closely monitors the performance of loan modifications to borrowers experiencing financial difficulty. The following tables present the performance of loans that have been modified as of March 31, 2024 and March 31, 2023.

March 31, 2024	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	247	$	247
Commercial real estate – investor		-		-		-		-		1,958		1,958
Commercial real estate – owner occupied		-		-		-		-		16,407		16,407
Total	$	-	$	-	$	-	$	-	$	18,612	$	18,612

March 31, 2023	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	979	$	979
Commercial real estate – investor		-		-		-		-		1,774		1,774
HELOC		-		-		-		-		20		20
Total	$	-	$	-	$	-	$	-	$	2,773	$	2,773

The following tables summarize the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the period ended March 31, 2024, and March 31, 2023. The Company had two loans that had a payment modification as of March 31, 2024. One changed to a single payment at maturity and the other had a reduction of monthly payment until maturity; the financial impact of these modifications is immaterial. As of March 31, 2023, there was one loan that had a payment modification to a single payment at maturity.

March 31, 2024	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		-	%		-
Commercial real estate – investor		24.00		-			-
Commercial real estate – owner occupied		5.24		0.15			-
Total		7.20		0.15	%		-

March 31, 2023	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		5.00	%		-
Commercial real estate – investor		8.00		-			7.00
HELOC		24.00		-			-
Total		6.71		5.00	%		7.00

XML

Other Real Estate Owned

3 Months Ended

Mar. 31, 2024

Other Real Estate Owned

Other Real Estate Owned

Note 4 – Other Real Estate Owned

Details related to the activity in the other real estate owned (“OREO”) portfolio, net of valuation reserve, for the periods presented are itemized in the following table:

	Three Months Ended
	March 31,
Other real estate owned	2024		2023
Balance at beginning of period	$	5,123	$	1,561
Property additions, net of acquisition adjustments		-		291
Less:
Proceeds from property disposals, net of participation purchase and gains/losses		-		328
Period valuation write-down		-		269
Balance at end of period	$	5,123	$	1,255

Activity in the valuation allowance was as follows:

	Three Months Ended
	March 31,
	2024		2023
Balance at beginning of period	$	118	$	856
Provision for unrealized losses		-		269
Reductions taken on sales		-		(272)
Balance at end of period	$	118	$	853

Expenses related to OREO, net of lease revenue includes:

	Three Months Ended
	March 31,
	2024		2023
Gain on sales, net	$	-	$	28
Provision for unrealized losses		-		269
Operating expenses		113		9
Less:
Lease revenue		67		-
Net OREO expense	$	46	$	306

XML

Deposits

3 Months Ended

Mar. 31, 2024

Deposits

Deposits

Note 5 – Deposits

Major classifications of deposits were as follows:

	March 31, 2024		December 31, 2023
Noninterest bearing demand	$	1,799,927	$	1,834,891
Savings		955,528		971,334
NOW accounts		569,814		565,375
Money market accounts		696,354		671,240
Certificates of deposit of less than $100,000		289,962		266,035
Certificates of deposit of $100,000 through $250,000		205,638		180,289
Certificates of deposit of more than $250,000		91,052		81,582
Total deposits	$	4,608,275	$	4,570,746

XML

Borrowings

3 Months Ended

Mar. 31, 2024

Borrowings

Borrowings

Note 6 – Borrowings

The following table is a summary of borrowings as of March 31, 2024 and December 31, 2023.  Junior subordinated debentures are discussed in more detail in Note 7.

	March 31, 2024		December 31, 2023
Securities sold under repurchase agreements	$	33,546	$	26,470
Other short-term borrowings		220,000		405,000
Junior subordinated debentures1		25,773		25,773
Subordinated debentures		59,403		59,382
Total borrowings	$	338,722	$	516,625

¹ See Note 7: Junior Subordinated Debentures.

The Company enters into deposit sweep transactions where the transaction amounts are secured by pledged securities.  These transactions consistently mature overnight from the transaction date and are governed by sweep repurchase agreements.  All sweep repurchase agreements are treated as financings secured by U.S. government agencies and collateralized mortgage-backed securities, and had a carrying amount of $33.5 million at March 31, 2024, and $26.5 million at December 31, 2023.  The fair value of the pledged collateral was $45.2 million at March 31, 2024, and $45.7 million at December 31, 2023.  At March 31, 2024, there were no customers with secured balances exceeding 10% of stockholders’ equity.

The Company’s borrowings at the FHLBC require the Bank to be a member and invest in the stock of the FHLBC.  Total borrowings are generally limited to the lower of 35% of total assets or 60% of the book value of certain mortgage loans.  As of March 31, 2024, the Bank had $220.0 million in short-term advances outstanding under the FHLBC, and $405.0 million in short-term advances as of December 31, 2023. FHLBC stock held at March 31, 2024 was valued at $13.6 million, and any potential FHLBC advances were collateralized by loans and securities with a principal balance of $1.44 billion, which carried a FHLBC-calculated combined collateral value of $998.9 billion.  The Company had excess collateral of $778.9 million available to secure borrowings at March 31, 2024.

In the second quarter of 2021, we issued $60.0 million in aggregate principal amount of our 3.50% Fixed-to-Floating Rate Subordinated Notes due April 15, 2031 (the “Notes”). The Company used the net proceeds from the offering for general corporate purposes.  The Notes bear interest at a fixed annual rate of 3.50%, from and including the date of issuance to but excluding April 15, 2026, payable semi-annually in arrears.  From and including April 15, 2026 to, but excluding the maturity date or early redemption date, the interest rate will reset quarterly to an interest rate per annum equal to three-month Term Secured Overnight Financing Rate (“SOFR”) (as defined by the Note) plus 273 basis points, payable quarterly in arrears. As of March 31, 2024 and December 31, 2023, we had $59.4 million of subordinated debentures outstanding, net of deferred issuance cost.

The Company issued senior notes in December 2016 with a ten-year maturity, and terms included interest payable semiannually at 5.75% for five years.  Beginning December 31, 2021, the senior debt began to pay interest at a floating rate, with interest payable quarterly at three month LIBOR plus 385 basis points. The notes were redeemable, in whole or in part, at the option of the Company, beginning with the interest payment date on December 31, 2021, and on any floating rate interest payment date thereafter, at a redemption price equal to 100% of the principal amount of the notes plus accrued and unpaid interest.  On June 30, 2023, we redeemed all of the $45.0 million senior notes, at which point the interest rate was 9.39%.  Upon redemption, the related deferred debt issuance costs of $362,000 was also recorded as interest expense, resulting in an effective cost of this debt issuance of 12.85% for the second quarter of 2023.

On February 24, 2020, the Company originated a $20.0 million three-year term note with a correspondent bank. The term note was issued at one-month LIBOR plus 175 basis points, and required principal payments quarterly and interest payments monthly.  This note was included within Notes payable and other borrowings on the Consolidated Balance Sheets, and the remaining $9.0 million balance of the note was paid off on February 24, 2023.  The Company also has an undrawn line of credit of $30.0 million with a correspondent bank to be used for short-term funding needs; advances under this line can be outstanding up to 360 days from the date of issuance.  This line of credit has not been utilized since early 2019.

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Junior Subordinated Debentures

3 Months Ended

Mar. 31, 2024

Junior Subordinated Debentures

Junior Subordinated Debentures

Note 7 – Junior Subordinated Debentures

The Company issued $25.0 million of cumulative trust preferred securities through a private placement completed by an unconsolidated subsidiary, Old Second Capital Trust II, in April 2007.  These trust preferred securities mature in 30 years, but subject to regulatory approval, can be called in whole or in part on a quarterly basis commencing June 15, 2017.  The quarterly cash distributions on the securities were fixed at 6.77% through June 15, 2017, and now have a floating rate of 150 basis points over three-month SOFR.  Upon conversion to a floating rate, a cash flow hedge was initiated which resulted in the total interest rate paid on the debt of 4.37% and 4.39% for the quarters ended March 31, 2024 and March 31, 2023, respectively.  The Company issued a $25.8 million subordinated debenture to Old Second Capital Trust II in return for the aggregate net proceeds of this trust preferred offering.  The interest rate and payment frequency on the debenture are equivalent to the cash distribution basis on the trust preferred securities.  

The junior subordinated debentures issued by the Company are disclosed on the Consolidated Balance Sheets, and the related interest expense for each issuance is included in the Consolidated Statements of Income.  As of March 31, 2024 and December 31, 2023, the remaining unamortized debt issuance costs related to the junior subordinated debentures were less than $1,000 and are included as a reduction to the balance of the junior subordinated debentures on the Consolidated Balance Sheets.  The remaining deferred issuance costs on the junior subordinated debentures related to the issuance of Old Second Capital Trust II will be amortized to interest expense over the remainder of the 30-year term of the notes and are included in the Consolidated Statements of Income.

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Equity Compensation Plans

3 Months Ended

Mar. 31, 2024

Equity Compensation Plans

Equity Compensation Plans

Note 8 – Equity Compensation Plans

Stock-based awards are outstanding under the Company’s 2019 Equity Incentive Plan, as amended and restated (the “2019 Plan”).  The 2019 Plan was originally approved at the May 2019 annual stockholders’ meeting and authorized 600,000 shares, and at the May 2021 annual stockholders’ meeting, the Company obtained stockholder approval to increase the number of shares of common stock authorized for issuance under the 2019 Plan by 1,200,000 shares, from 600,000 shares to 1,800,000 shares.  Following the approval of the 2019 Plan, no further awards will be granted under any other prior plan.  

The 2019 Plan authorizes the granting of qualified stock options, non-qualified stock options, restricted stock, restricted stock units, and stock appreciation rights (“SARs”).  Awards may be granted to selected directors, officers, employees or eligible service providers under the 2019 Plan at the discretion of the Compensation Committee of the Company’s Board of Directors.  As of March 31, 2024, 712,201 shares remained available for issuance under the 2019 Plan.  The Company has granted only restricted stock units under the 2019 Equity Plan.

Generally, restricted stock units granted under the 2019 Plan vest three years from the grant date, but the Compensation Committee of the Company’s Board of Directors has discretionary authority to change the terms of particular awards including the vesting schedule.

Under the 2019 Plan, unless otherwise provided in an award agreement, upon the occurrence of a change in control, all equity awards then held by the participant will become fully exercisable immediately if, and all stock awards and cash incentive awards will become fully earned and vested immediately if, (i) the 2019 Plan is not an obligation of the successor entity following a change in control or (ii) the 2019 Plan is an obligation of the successor entity following a change in control and the participant incurs a termination of service without cause or for good reason following the change in control.  Notwithstanding the immediately preceding sentence, if the vesting of an award is conditioned upon the achievement of performance measures, then such vesting will generally be subject to the following: if, at the time of the change in control, the performance measures are less than 50% attained (pro rata based upon the time of the period through the change in control), the award will become vested and exercisable on a fractional basis with the numerator being equal to the percentage of attainment and the denominator being 50%; and if, at the time of the change in control, the performance measures are at least 50% attained (pro rata based upon the time of the period through the change in control), the award will become fully earned and vested immediately upon the change in control.

Awards of restricted stock under the 2019 Plan generally entitle holders to voting and dividend rights upon grant and are subject to forfeiture until certain restrictions have lapsed including employment for a specific period.  Awards of restricted stock units under the 2019 Plan are also subject to forfeiture until certain restrictions have lapsed including employment for a specific period, but do not entitle holders to voting rights until the restricted period ends and shares are transferred in connection with the units.

There were 338,235 and 230,399 restricted stock units issued under the 2019 Plan during the three months ended March 31, 2024 and March 31, 2023, respectively.  Compensation expense is recognized over the vesting period of the restricted stock units based on the market value of the award on the issue date.  Total compensation cost that has been recorded for the 2019 Plan was $1.2 million for the three months ended March 31, 2024 and $948,000 for the three months ended March 31, 2023.

A summary of changes in the Company’s unvested restricted awards for the three months ended March 31, 2024, is as follows:

	March 31, 2024
		Weighted
	Restricted	Average
	Stock Shares	Grant Date
	and Units	Fair Value
Unvested at January 1	709,237	$	14.26
Granted	338,235		13.44
Vested	(204,969)		11.32
Forfeited	(3,000)		12.35
Unvested at March 31	839,503	$	14.65

Total unrecognized compensation cost of restricted awards was $6.9 million as of March 31, 2024, which is expected to be recognized over a weighted-average period of 2.19 years.  

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Earnings Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share

Earnings Per Share

Note 9 – Earnings Per Share

The earnings per share, both basic and diluted, are as follows:

	Three Months Ended March 31,
	2024		2023
Basic earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Net income	$	21,312	$	23,607
Basic earnings per share	$	0.48	$	0.53
Diluted earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Dilutive effect of unvested restricted awards 1		765,325		697,480
Diluted average common shares outstanding		45,523,884		45,316,598
Net Income	$	21,312	$	23,607
Diluted earnings per share	$	0.47	$	0.52
1 Includes the common stock equivalents for restricted share rights that are dilutive.

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Regulatory & Capital Matters

3 Months Ended

Mar. 31, 2024

Regulatory & Capital Matters

Regulatory & Capital Matters

Note 10 – Regulatory & Capital Matters

The Bank is subject to the risk-based capital regulatory guidelines, which include the methodology for calculating the risk-weighted Bank assets, developed by the Office of the Comptroller of the Currency (the “OCC”) and the other bank regulatory agencies.  In connection with the current risk-based capital regulatory guidelines, the Bank’s Board of Directors has established an internal guideline requiring the Bank to maintain a Tier 1 leverage capital ratio at or above eight percent (8%) and a total risk-based capital ratio at or above twelve percent (12%).  At March 31, 2024, the Bank exceeded those thresholds.

At March 31, 2024, the Bank’s Tier 1 capital leverage ratio was 10.89%, an increase of 48 basis points from December 31, 2023, and is above the 8.00% objective.  The Bank’s total capital ratio was 14.03%, an increase of 79 basis points from December 31, 2023, and also above the objective of 12.00%.

Bank holding companies are generally required to maintain minimum levels of capital in accordance with capital guidelines implemented by the Board of Governors of the Federal Reserve System.  The general bank and holding company capital adequacy guidelines are shown in the accompanying table, as are the capital ratios of the Company and the Bank, as of March 31, 2024 and December 31, 2023.

The Basel III Rules are applicable to all banking organizations that are subject to minimum capital requirements, including federal and state banks and savings and loan associations, as well as to bank and savings and loan holding companies, other than “small bank holding companies,” which are generally holding companies with consolidated assets of less than $3.0 billion.  A detailed discussion of the Basel III Rules is included in Part I, Item 1 of the Company’s Form 10-K for the year ended December 31, 2023, under the heading “Supervision and Regulation.”

At March 31, 2024 and December 31, 2023, the Company, on a consolidated basis, exceeded the minimum thresholds to be considered “well capitalized” under current regulatory defined capital ratios.

Capital levels and industry defined regulatory minimum required levels are as follows:

					Minimum Capital				Well Capitalized
					Adequacy with Capital				Under Prompt Corrective
	Actual				Conservation Buffer, if applicable1				Action Provisions2
	Amount		Ratio		Amount		Ratio		Amount		Ratio
March 31, 2024
Common equity tier 1 capital to risk weighted assets
Consolidated	$	566,730	12.02	%	$	330,042	7.00	%		N/A	N/A
Old Second Bank		614,947	13.06			329,604	7.00		$	306,061	6.50	%
Total capital to risk weighted assets
Consolidated		697,211	14.79			494,977	10.50			N/A	N/A
Old Second Bank		660,429	14.03			494,263	10.50			470,726	10.00
Tier 1 capital to risk weighted assets
Consolidated		591,730	12.55			400,773	8.50			N/A	N/A
Old Second Bank		614,947	13.06			400,233	8.50			376,690	8.00
Tier 1 capital to average assets
Consolidated		591,730	10.47			226,067	4.00			N/A	N/A
Old Second Bank		614,947	10.89			225,876	4.00			282,345	5.00
December 31, 2023
Common equity tier 1 capital to risk weighted assets
Consolidated	$	547,721	11.37	%	$	337,207	7.00	%		N/A	N/A
Old Second Bank		592,413	12.32			336,598	7.00		$	312,556	6.50	%
Total capital to risk weighted assets
Consolidated		677,076	14.06			505,640	10.50			N/A	N/A
Old Second Bank		636,768	13.24			504,990	10.50			480,943	10.00
Tier 1 capital to risk weighted assets
Consolidated		572,721	11.89			409,430	8.50			N/A	N/A
Old Second Bank		592,413	12.32			408,727	8.50			384,684	8.00
Tier 1 capital to average assets
Consolidated		572,721	10.06			227,722	4.00			N/A	N/A
Old Second Bank		592,413	10.41			227,632	4.00			284,540	5.00

¹ Amounts are shown inclusive of a capital conservation buffer of 2.50%.

² The prompt corrective action provisions are only applicable at the Bank level. The Bank exceeded the general minimum regulatory requirements to be considered “well capitalized.”

As part of its response to the impact of the COVID-19 pandemic, in the first quarter of 2020, U.S. federal regulatory authorities issued an interim final rule that provided banking organizations that adopted the Current Expected Credit Losses (“CECL”) methodology during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five-year transition in total). In connection with our adoption of CECL on January 1, 2020, we elected to utilize the five-year CECL transition.  As of March 31, 2024, the capital measures of the Company exclude $951,000, which is the modified CECL transition adjustment.

Dividend Restrictions

In addition to the above requirements, banking regulations and capital guidelines generally limit the amount of dividends that may be paid by a bank without prior regulatory approval.  Under these regulations, the amount of dividends that may be paid in any calendar year is limited to the current year’s profits, combined with the retained profit of the previous two years, subject to the capital requirements described above.  As of March 31, 2024, the Bank had capacity to pay dividends of $93.7 million to the Company without prior regulatory approval.  Pursuant to the Basel III rules, the Bank must keep a capital conservation buffer of 2.50% above the regulatory minimum capital requirements, which must consist entirely of Common Equity Tier 1 capital in order to avoid additional limitations on capital distributions and certain other payments.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Measurements

Fair Value Measurements

Note 11 – Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.  The fair value hierarchy established by the Company also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.  Three levels of inputs that may be used to measure fair value are:

Level 1:  Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company has the ability to access as of the measurement date.

Level 2:  Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data.

Level 3:  Significant unobservable inputs that reflect a company’s own view about the assumptions that market participants would use in pricing an asset or liability.

There were no transfers between levels at March 31, 2024, however the Company reclassified one states and political subdivisions security to an asset-backed security in all periods presented. During the three-month period ended March 31, 2023, $14.9 million of asset-backed securities and $6.8 million of collateralized mortgage obligations were transferred to Level 2 from Level 3.

The majority of securities available-for-sale are valued by external pricing services or dealer market participants and are classified in Level 2 of the fair value hierarchy.  Both market and income valuation approaches are utilized.  Quarterly, the Company evaluates the methodologies used by the external pricing services or dealer market participants to develop the fair values to determine whether the results of the valuations are representative of an exit price in the Company’s principal markets and an appropriate representation of fair value.  The Company uses the following methods and significant assumptions to estimate fair value:

● Government-sponsored agency debt securities are primarily priced using available market information through processes such as benchmark spreads, market valuations of like securities, like securities groupings and matrix pricing.

● Other government-sponsored agency securities, Mortgage Backed Securities (“MBS”) and some of the actively traded real estate mortgage investment conduits and collateralized mortgage obligations are priced using available market information including benchmark yields, prepayment speeds, spreads, volatility of similar securities and trade date.

● State and political subdivisions are largely grouped by characteristics (e.g., geographical data and source of revenue in trade dissemination systems).  Because some securities are not traded daily and due to other grouping limitations, active market quotes are often obtained using benchmarking for like securities.

● Auction rate securities are priced using market spreads, cash flows, prepayment speeds, and loss analytics.  Therefore, the valuations of auction rate asset-backed securities are considered Level 2 valuations.

● Asset-backed collateralized loan obligations were priced using data from a pricing matrix supported by our bond accounting service provider and are therefore considered Level 2 valuations.

● Annually every security holding is priced by a pricing service independent of the regular and recurring pricing services used.  The independent service provides a measurement to indicate if the price assigned by the regular service is within or outside of a reasonable range.  Management reviews this report and applies judgment in adjusting calculations at year end related to securities pricing.

● Residential mortgage loans available for sale in the secondary market are carried at fair market value.  The fair value of loans held-for-sale is determined using quoted secondary market prices.

● Lending related commitments to fund certain residential mortgage loans, e.g., residential mortgage loans with locked interest rates to be sold in the secondary market and forward commitments for the future delivery of mortgage loans to third party investors, as well as forward commitments for future delivery of MBS, are considered derivatives.  Fair values are estimated based on observable changes in mortgage interest rates including prices for MBS from the date of the commitment and do not typically involve significant judgments by management.

● The fair value of mortgage servicing rights is based on a valuation model that calculates the present value of estimated net servicing income.  The valuation model incorporates assumptions that market participants would use in estimating future net servicing income to derive the resultant value.  The Company is able to compare the valuation model inputs, such as the discount rate, prepayment speeds, weighted average delinquency and foreclosure/bankruptcy rates to widely available published industry data for reasonableness.

● Interest rate swap positions, both assets and liabilities, are based on valuation pricing models using an income approach reflecting readily observable market parameters such as interest rate yield curves.

● The fair value of individually evaluated loans with specific allocations of the allowance for credit losses is essentially based on recent real estate appraisals or the fair value of the collateralized asset.  These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach.  Adjustments are made in the appraisal process by the appraisers to reflect differences between the available comparable sales and income data.  Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value.

● Nonrecurring adjustments to certain commercial and residential real estate properties classified as other real estate owned (“OREO”) are measured at fair value, less costs to sell.  Fair values are based on third party appraisals of the property, resulting in a Level 3 classification, or an executed pending sales contract.  In cases where the carrying amount exceeds the fair value, less costs to sell, a valuation loss is recognized.

Assets and Liabilities Measured at Fair Value on a Recurring Basis:

The tables below present the balance of assets and liabilities at March 31, 2024 and December 31, 2023, respectively, measured by the Company at fair value on a recurring basis:

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	171,000	$	-	$	-	$	171,000
U.S. government agencies		-		56,979		-		56,979
U.S. government agencies mortgage-backed		-		101,075		-		101,075
States and political subdivisions		-		209,839		12,903		222,742
Collateralized mortgage obligations		-		379,603		-		379,603
Asset-backed securities		-		64,222		2,485		66,707
Collateralized loan obligations		-		170,691		-		170,691
Loans held-for-sale		-		1,072		-		1,072
Mortgage servicing rights		-		-		10,564		10,564
Interest rate swap agreements, including risk participation agreement		-		6,001		-		6,001
Mortgage banking derivatives		-		49		-		49
Total	$	171,000	$	989,531	$	25,952	$	1,186,483
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,917	$	-	$	8,917
Total	$	-	$	8,917	$	-	$	8,917

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	169,574	$	-	$	-	$	169,574
U.S. government agencies		-		56,959		-		56,959
U.S. government agencies mortgage-backed		-		106,370		-		106,370
States and political subdivisions		-		214,006		13,059		227,065
Collateralized mortgage obligations		-		392,544		-		392,544
Asset-backed securities		-		66,166		2,270		68,436
Collateralized loan obligations		-		171,881		-		171,881
Loans held-for-sale		-		1,322		-		1,322
Mortgage servicing rights		-		-		10,344		10,344
Interest rate swap agreements		-		5,391		-		5,391
Mortgage banking derivatives		-		(10)		-		(10)
Total	$	169,574	$	1,014,629	$	25,673	$	1,209,876
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,324	$	-	$	8,324
Total	$	-	$	8,324	$	-	$	8,324

The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are as follows:

		Three Months Ended March 31, 2024
	Securities available-for-sale
			States and		Mortgage
	Asset-backed		Political		Servicing
	Securities		Subdivisions		Rights
Beginning balance January 1, 2024	$	2,270	$	13,059	$	10,344
Transfers out of Level 3		-		-		-
Total gains or losses
Included in earnings		-		(33)		172
Included in other comprehensive income		(29)		(89)		-
Purchases, issuances, sales, and settlements
Purchases		259		-		-
Issuances		-		-		126
Settlements		(15)		(34)		(78)
Ending balance March 31, 2024	$	2,485	$	12,903	$	10,564

		Three Months Ended March 31, 2023
		Securities available-for-sale
			Collateralized		States and		Mortgage
	Asset-backed		Mortgage		Political		Servicing
	Securities		Obligations		Subdivisions		Rights
Beginning balance January 1, 2023	$	16,741	$	6,770	$	12,501	$	11,189
Transfers into Level 3		-		-		-		-
Transfers out of Level 3		(14,885)		(6,764)		-		-
Total gains or losses
Included in earnings		(11)		-		(34)		(471)
Included in other comprehensive income		219		(6)		430		-
Purchases, issuances, sales, and settlements
Purchases		406		-		-		-
Issuances		-		-		-		120
Settlements		(355)		-		(33)		(54)
Ending balance March 31, 2023	$	2,115	$	-	$	12,864	$	10,784

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as of March 31, 2024:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	12,903	Discounted Cash Flow	Discount Rate	3.2 – 3.7%	3.5	%
				Liquidity Premium	0.5 – 0.5%	0.5	%
Asset-backed securities	$	2,485	Discounted Cash Flow	Discount Rate	5.5 - 5.5%	5.5	%
Mortgage servicing rights	$	10,564	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.2 – 31.5%	6.1	%

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as December 31, 2023:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	13,059	Discounted Cash Flow	Discount Rate	3.2– 5.4%	4.7	%
				Liquidity Premium	0.5 - 0.5%	0.5	%
Asset-backed securities	$	2,270	Discounted Cash Flow	Discount Rate	5.6 - 5.6%	5.6	%
Mortgage servicing rights	$	10,344	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.1 - 33.0%	6.6	%

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis:

The Company may be required, from time to time, to measure certain other assets at fair value on a nonrecurring basis in accordance with GAAP.  These assets consist of individually evaluated loans and OREO.  For assets measured at fair value on a nonrecurring basis at March 31, 2024 and December 31, 2023, respectively, the following tables provide the level of valuation assumptions used to determine each valuation and the carrying value of the related assets:

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	53,182	$	53,182
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	58,305	$	58,305

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $59.3 million and a valuation allowance of $6.2 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $4.9 million for the three months ended March 31, 2024.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at March 31, 2024, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	66,180	$	66,180
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	71,303	$	71,303

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $77.3 million and a valuation allowance of $11.1 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $6.5 million for the year December 31, 2023.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at December 31, 2023, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

The Company has estimated the fair values of these assets based primarily on Level 3 inputs.  OREO and individually evaluated loans are generally valued using the fair value of collateral provided by third party appraisals.  These valuations include assumptions related to cash flow projections, discount rates, and recent comparable sales.  The numerical ranges of unobservable inputs for these valuation assumptions are not meaningful.

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Fair Values of Financial Instruments

3 Months Ended

Mar. 31, 2024

Fair Values of Financial Instruments

Fair Values of Financial Instruments

Note 12 – Fair Values of Financial Instruments

The estimated fair values approximate carrying amount for all items except those described in the following table.  Securities available-for-sale fair values are based upon market prices or dealer quotes, and if no such information is available, on the rate and term of the security.  The carrying value of FHLBC stock approximates fair value as the stock is nonmarketable and can only be sold to the FHLBC or another member institution at par. At March 31, 2024 and December 31, 2023, the fair values of loans are estimated on an exit price basis incorporating discounts for credit, liquidity and marketability factors.  The fair value of time deposits was estimated using discounted future cash flows at current rates offered for deposits of similar remaining maturities.  The fair values of borrowings were estimated based on interest rates available to the Company for debt with similar terms and remaining maturities.  The fair value of off balance sheet volume was not considered material.

The carrying amount and estimated fair values of financial instruments were as follows:

	March 31, 2024
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	48,841	$	48,841	$	48,841	$	-	$	-
Interest earning deposits with financial institutions		49,253		49,253		49,253		-		-
Securities available-for-sale		1,168,797		1,168,797		171,000		982,409		15,388
FHLBC and FRBC stock		28,518		28,518		-		28,518		-
Loans held-for-sale		1,072		1,072		-		1,072		-
Net loans		3,925,298		3,841,563		-		-		3,841,563
Mortgage servicing rights		10,564		10,564						10,564
Interest rate swap agreements		5,947		5,947		-		5,947		-
Interest rate lock commitments and forward contracts		49		49		-		49		-
Interest receivable on securities and loans		25,735		25,735		-		25,735		-
Financial liabilities:
Noninterest bearing deposits	$	1,799,927	$	1,799,927	$	1,799,927	$	-	$	-
Interest bearing deposits		2,808,348		2,798,825		-		2,798,825		-
Securities sold under repurchase agreements		33,546		33,546		-		33,546		-
Other short-term borrowings		220,000		220,000		-		220,000		-
Junior subordinated debentures		25,773		20,619		-		20,619		-
Subordinated debentures		59,403		49,797		-		49,797		-
Interest rate swap agreements		8,917		8,917		-		8,917		-
Interest payable on deposits and borrowings		3,617		3,617		-		3,617		-

	December 31, 2023
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	55,534	$	55,534	$	55,534	$	-	$	-
Interest earning deposits with financial institutions		44,611		44,611		44,611		-		-
Securities available-for-sale		1,192,829		1,192,829		169,574		1,007,926		15,329
FHLBC and FRBC stock		33,355		33,355		-		33,355		-
Loans held-for-sale		1,322		1,322		-		1,322		-
Net loans		3,998,689		3,876,381		-		-		3,876,381
Mortgage servicing rights		10,344		10,344						10,344
Interest rate swap agreements		5,302		5,302		-		5,302		-
Interest rate lock commitments and forward contracts		(10)		(10)		-		(10)		-
Interest receivable on securities and loans		27,159		27,159		-		27,159		-
Financial liabilities:
Noninterest bearing deposits	$	1,834,891	$	1,834,891	$	1,834,891	$	-	$	-
Interest bearing deposits		2,735,855		2,726,223		-		2,726,223		-
Securities sold under repurchase agreements		26,470		26,470		-		26,470		-
Junior subordinated debentures		405,000		405,000		-		405,000		-
Subordinated debentures		25,773		20,361		-		20,361		-
Senior notes		59,382		47,982				47,982
Interest rate swap agreements		8,234		8,324		-		8,324		-
Interest payable on deposits and borrowings		2,962		2,962		-		2,962		-

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Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk

3 Months Ended

Mar. 31, 2024

Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk

Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions

Note 13 – Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk

Risk Management Objective of Using Derivatives

The Company is exposed to certain risk arising from both its business operations and economic conditions.  The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments.  Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates.  The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s loan portfolio.  

Cash Flow Hedges of Interest Rate Risk

The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. The aggregate fair value of the swaps is recorded in other assets or other liabilities with changes in fair value recorded in other comprehensive income, net of tax. The amount included in other comprehensive income would be reclassified to current earnings should all or a portion of the hedge no longer be considered effective. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in accumulated other comprehensive income and subsequently reclassified into interest income or interest expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest income or expense as interest payments are received on the variable rate loan pools or paid on the Company’s fixed-rate borrowings.

Interest rate swaps with notional amounts totaling $300.0 million as of March 31, 2024, and December 31, 2023, were designated as cash flow hedges of certain variable rate commercial and commercial real estate loan pools. Each of these hedges were executed to pay variable and receive fixed rate cash flows. Each of these hedges was determined to be effective during all periods presented and the Company expects the hedges to remain effective during the remaining terms of the swaps.

An interest rate swap with a notional amount of $25.8 million as of March 31, 2024 and December 31, 2023, is designated as a cash flow hedge of junior subordinated debentures and was executed to pay fixed and receive variable rate cash flows. The hedge was determined to be effective during all periods presented and the Company expects the hedge to remain effective during the remaining terms of the swap.

During the next twelve months, the Company estimates that an additional $5.5 million will be reclassified as an increase to interest income and an additional $609,000 will be reclassified as an increase to interest expense.

Non-designated Hedges

Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. The notional amounts of interest rate swaps with its loan customers as of March 31, 2024 and December 31, 2023 were $107.0 million and $104.8 million, respectively. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings.

At March 31, 2024 and December 31, 2023, the Company had $6.6 million and $7.3 million of cash collateral pledged with two correspondent financial institutions, respectively. The Company held $5.7 million and $4.1 million of cash pledged from one correspondent financial institution to support the interest rate swap activity during the periods presented, respectively. No investment securities were required to be pledged to any correspondent financial institution during 2024 through March 31, 2024, or during 2023. The Company offsets derivative assets and liabilities that are subject to a master netting arrangement.

The Company also grants mortgage loan interest rate lock commitments to borrowers, subject to normal loan underwriting standards. The interest rate risk associated with these loan interest rate lock commitments is managed with contracts for future deliveries of loans as well as selling forward mortgage-backed securities contracts. Loan interest rate lock commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The notional amount of these commitments at March 31, 2024 and December 31, 2023 was $9.5 million and $8.4 million, respectively. Commitments to originate residential mortgage loans held-for-sale and forward commitments to sell residential mortgage loans or forward MBS contracts are considered derivative instruments and changes in the fair value are recorded to mortgage banking revenue. Fair values are estimated based on observable changes in mortgage interest rates including mortgage-backed securities prices from the date of the commitment.

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of March 31, 2024 and December 31, 2023.

Fair Value of Derivative Instruments

			March 31, 2024
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	3,361	Other Liabilities	6,331
Total derivatives designated as hedging instruments				3,361		6,331
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	16	106,958	Other Assets	2,586	Other Liabilities	2,586
Interest rate lock commitments and forward contracts	38	9,487	Other Assets	49	Other Liabilities	-
Other contracts	4	46,687	Other Assets	54	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,689		2,586
			December 31, 2023
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	2,576	Other Liabilities	5,598
Total derivatives designated as hedging instruments				2,576		5,598
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	17	104,777	Other Assets	2,726	Other Liabilities	2,726
Interest rate lock commitments and forward contracts	24	8,375	Other Assets	(10)	Other Liabilities	-
Other contracts	4	44,790	Other Assets	89	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,805		2,726

Disclosure of the Effect of Fair Value and Cash Flow Hedge Accounting

The fair value and cash flow hedge accounting related to derivatives covered under ASC Subtopic 815-20 impacted Accumulated Other Comprehensive Income (“AOCI”) and the Income Statement.  The loss recognized in AOCI on derivatives totaled $2.1 million as of March 31, 2024, and $3.1 million as of March 31, 2023.  The amount of the loss reclassified from AOCI to net interest income on the income statement was $1.6 million for the three months ended March 31, 2024 and $1.0 million for the three months ended March 31, 2023.  

Credit-risk-related Contingent Features

For derivative transactions involving counterparties who are lending customers of the Company, the derivative credit exposure is managed through the normal credit review and monitoring process, which may include collateralization, financial covenants and/or financial guarantees of affiliated parties.  Agreements with such customers require that losses associated with derivative transactions receive payment priority from any funds recovered should a customer default and ultimate disposition of collateral or guarantees occur.

Credit exposure to broker/dealer counterparties is managed through agreements with each derivative counterparty that require collateralization of fair value gains owed by such counterparties.  Some small degree of credit exposure exists due to timing differences between when a gain may occur and the subsequent point in time that collateral is delivered to secure that gain.  This is monitored by the Company and procedures are in place to minimize this exposure.  Such agreements also require the Company to collateralize counterparties in circumstances wherein the fair value of the derivatives result in loss to the Company.

Other provisions of such agreements include the definition of certain events that may lead to the declaration of default and/or the early termination of the derivative transaction(s):

● If the Company either defaults or is capable of being declared in default on any of its indebtedness (exclusive of deposit obligations), then the Company could also be declared in default on its derivative obligations.

● If a merger occurs that materially changes the Company's creditworthiness in an adverse manner.

● If certain specified adverse regulatory actions occur, such as the issuance of a Cease and Desist Order, or citations for actions considered Unsafe and Unsound or that may lead to the termination of deposit insurance coverage by the FDIC.

The Bank also issues letters of credit, which are conditional commitments that guarantee the performance of a customer to a third party.  The credit risk involved and collateral obtained in issuing letters of credit are essentially the same as that involved in extending loan commitments to our customers.  In addition to customer related commitments, the Company is responsible for letters of credit commitments that relate to properties held in OREO.  The following table represents the Company’s contractual commitments due to letters of credit as of March 31, 2024, and December 31, 2023.

The following table is a summary of letter of credit commitments:

	March 31, 2024						December 31, 2023
	Fixed		Variable		Total		Fixed		Variable		Total
Letters of credit:
Borrower:
Financial standby	$	229	$	17,276	$	17,505	$	173	$	16,621	$	16,794
Performance standby		562		12,344		12,906		562		13,689		14,251
		791		29,620		30,411		735		30,310		31,045
Non-borrower:
Performance standby		-		67		67		-		67		67
Total letters of credit	$	791	$	29,687	$	30,478	$	735	$	30,377	$	31,112
Unused loan commitments:	$	148,769	$	629,544	$	778,313	$	140,305	$	694,960	$	835,265

As of March 31, 2024, the Company evaluated current market conditions, including any impacts related to market interest rate changes and unused line of credit utilization trends during the first quarter of 2024, and based on that analysis under the CECL methodology, the Company determined credit losses related to unfunded commitments totaled $2.7 million.  The resultant decrease in the ACL for unfunded commitments of $44,000 for the first quarter of 2024, compared to the prior quarter end, is primarily related adjustments to historical benchmark assumptions, such as the funding rates and the period used to forecast those rates within the ACL calculation.  The Company will continue to assess the credit risk at least quarterly, and adjust the allowance for unfunded commitments, which is carried within other liabilities on our Consolidated Balance Sheets, as needed, with the appropriate offsetting entry to the provision for credit losses on our Consolidated Statements of Income.

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Basis of Presentation and Changes in Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2024

Basis of Presentation and Changes in Significant Accounting Policies

Recent Accounting Pronouncements

Recent Accounting Pronouncements

The following is a summary of recent accounting pronouncements that have impacted or could potentially affect the Company:  

ASU 2023-06 – On October 9, 2023, the FASB issued ASU 2023-06 “Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative.” The amendments in the ASU modify the disclosure or presentation requirements of a variety of Topics in the Codification. Certain of the amendments represent clarifications to, or technical corrections of, the current requirements. Each amendment in the ASU will only become effective if the SEC removes the related disclosure or presentation requirement from its existing regulations by June 30, 2027. The amendments in this ASU are not expected to have a material impact on the financial statements of the Company.

ASU 2023-09 – On December 14, 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. The amendments require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation, and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate). The amendments require that all entities disclose on an annual basis the following information about income taxes paid: (1) The amount of income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes, and (2) The amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than 5 percent of total income taxes paid (net of refunds received). The amendments also require that all entities disclose the following information: (1) Income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign, and (2) Income tax expense (or benefit) from continuing operations disaggregated by federal (national), state, and foreign. The ASU is effective for public business entities for annual periods beginning after December 15, 2024.  Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments should be applied on a prospective basis. Retrospective application is permitted.  The Company will adopt this ASU for the reporting period beginning January 1, 2025, and does not expect the amendments to have a material impact to the financial statements of the Company.

ASU 2024-01 – On March 21, 2024, the FASB issued ASU 2024-01 “Compensation - Stock Compensation (Topic 718) - Scope Application of Profits Interest and Similar Awards” which clarifies how an entity determines whether a profits interest or similar award is within the scope of Topic 718, or is not a share-based payment arrangement and therefore within the scope of other guidance. ASU 2024-01 provides an illustrative example with multiple fact patterns and also amends certain language in the “Scope” and “Scope Exceptions” sections of Topic 718 to improve its clarity and operability without changing the guidance. Entities can apply the amendments either retrospectively to all prior periods presented in the financial statements or prospectively to profits interest and similar awards granted or modified on or after the date of adoption. If prospective application is elected, an entity must disclose the nature of and reason for the change in accounting principle. ASU 2024-01 is effective January 1, 2025, including interim periods, and is not expected to have a material impact the financial statements of the Company.

ASU 2024-02 – On March 29, 2024, the FASB issued ASU 2024-02 “Codification Improvements” amends the Codification to remove references to various concept statements and impacts a variety of topics in the Codification. The amendments apply to all reporting entities within the scope of the affected accounting guidance, but in most instances the references removed are extraneous and not required to understand or apply the guidance. Generally, the amendments in ASU 2024-02 are not intended to result in significant accounting changes for most entities. ASU 2024-02 is effective January 1, 2025 and is not expected to have a material impact the financial statements of the Company.

Subsequent Events

Subsequent Events

On April 16, 2024, our Board of Directors declared a cash dividend of $0.05 per share of common stock payable on May 6, 2024, to stockholders of record as of April 26, 2024; dividends of $2.2 million were paid to stockholders on May 6, 2024.

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Securities (Tables)

3 Months Ended

Mar. 31, 2024

Securities

Schedule of amortized cost and fair value of the securities portfolio and corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive loss

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
March 31, 2024	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,712	$	-	$	(3,712)	$	171,000
U.S. government agencies		59,829		-		(2,850)		56,979
U.S. government agencies mortgage-backed		114,061		-		(12,986)		101,075
States and political subdivisions		233,343		682		(11,283)		222,742
Collateralized mortgage obligations		431,084		272		(51,753)		379,603
Asset-backed securities		69,666		37		(2,996)		66,707
Collateralized loan obligations		171,131		52		(492)		170,691
Total securities available-for-sale	$	1,253,826	$	1,043	$	(86,072)	$	1,168,797

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
December 31, 2023	Cost1		Gains		Losses		Value
Securities available-for-sale
U.S. Treasury	$	174,602	$	-	$	(5,028)	$	169,574
U.S. government agencies		60,011		-		(3,052)		56,959
U.S. government agencies mortgage-backed		118,492		-		(12,122)		106,370
States and political subdivisions		236,072		1,325		(10,332)		227,065
Collateralized mortgage obligations		442,987		421		(50,864)		392,544
Asset-backed securities		71,616		42		(3,222)		68,436
Collateralized loan obligations		173,201		30		(1,350)		171,881
Total securities available-for-sale	$	1,276,981	$	1,818	$	(85,970)	$	1,192,829

¹ Excludes accrued interest receivable of $6.3 million and $6.6 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

Schedule of fair value, amortized cost and weighted average yield of debt securities by contractual maturity along with securities not due at a single maturity date, primarily mortgage-backed securities (MBS), asset-backed securities, and collateralized loan obligations

			Weighted
	Amortized		Average		Fair
Securities available-for-sale	Cost		Yield		Value
Due in one year or less	$	197,825	1.05	%	$	193,861
Due after one year through five years		53,675	1.92			50,940
Due after five years through ten years		56,283	2.77			51,681
Due after ten years		160,101	3.11			154,239
		467,884	2.06			450,721
Mortgage-backed and collateralized mortgage obligations		545,145	2.43			480,678
Asset-backed securities		69,666	4.06			66,707
Collateralized loan obligations		171,131	6.84			170,691
Total securities available-for-sale	$	1,253,826	2.99	%	$	1,168,797

Schedule of securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position

	Less than 12 months					12 months or more
March 31, 2024	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized		Fair		Number of	Unrealized		Fair		Number of	Unrealized		Fair
Securities available-for-sale	Securities	Losses		Value		Securities	Losses		Value		Securities	Losses		Value
U.S. Treasuries	-	$	-	$	-	4	$	3,712	$	171,000	4	$	3,712	$	171,000
U.S. government agencies	-		-		-	9		2,850		56,979	9		2,850		56,979
U.S. government agencies mortgage-backed	-		-		-	128		12,986		101,075	128		12,986		101,075
States and political subdivisions	20		299		63,127	35		10,984		126,955	55		11,283		190,082
Collateralized mortgage obligations	-		-		-	144		51,753		364,263	144		51,753		364,263
Asset-backed securities	-		-		-	18		2,996		60,864	18		2,996		60,864
Collateralized loan obligations	2		7		10,396	15		485		99,070	17		492		109,466
Total securities available-for-sale	22	$	306	$	73,523	353	$	85,766	$	980,206	375	$	86,072	$	1,053,729

	Less than 12 months					12 months or more
December 31, 2023	in an unrealized loss position					in an unrealized loss position					Total
	Number of	Unrealized			Fair	Number of	Unrealized			Fair	Number of	Unrealized			Fair
Securities available-for-sale	Securities	Losses			Value	Securities	Losses			Value	Securities	Losses			Value
U.S. Treasuries	-	$	-	$	-	4	$	5,028	$	169,574	4	$	5,028	$	169,574
U.S. government agencies	-		-		-	9		3,052		56,959	9		3,052		56,959
U.S. government agencies mortgage-backed	-		-		-	128		12,122		106,370	128		12,122		106,370
States and political subdivisions	12		137		27,974	25		10,195		106,138	37		10,332		134,112
Collateralized mortgage obligations	2		8		734	143		50,856		376,236	145		50,864		376,970
Asset-backed securities	-		-		-	19		3,222		63,941	19		3,222		63,941
Collateralized loan obligations	-		-		-	25		1,350		150,902	25		1,350		150,902
Total securities available-for-sale	14	$	145	$	28,708	353	$	85,825	$	1,030,120	367	$	85,970	$	1,058,828

Schedule of proceeds from sale and gross realized gains and losses on sale of securities

		Three Months Ended
		March 31,
Securities available-for-sale	2024			2023
Proceeds from sales of securities	$	5,331		$	66,170
Gross realized gains on securities	$	1		$	-
Gross realized losses on securities		-			(1,675)
Net realized gains (losses)	$	1		$	(1,675)
Income tax benefit on net realized losses	$	-		$	471
Effective tax rate applied		0.0	%		28.1	%

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Loans and Allowance for Credit Losses on Loans (Tables)

3 Months Ended

Mar. 31, 2024

Loans and Allowance for Credit Losses on Loans

Schedule of major classifications of loans

	March 31, 2024		December 31, 2023
Commercial	$	796,552	$	841,697
Leases		425,615		398,223
Commercial real estate – investor		1,018,382		1,034,424
Commercial real estate – owner occupied		782,603		796,538
Construction		169,174		165,380
Residential real estate – investor		51,522		52,595
Residential real estate – owner occupied		220,223		226,248
Multifamily		387,479		401,696
HELOC		98,762		103,237
Other 1		19,099		22,915
Total loans		3,969,411		4,042,953
Allowance for credit losses on loans		(44,113)		(44,264)
Net loans 2	$	3,925,298	$	3,998,689

¹ The “Other” segment includes consumer loans and overdrafts in this table and in subsequent tables within Note 3 – Loans and Allowance for Credit Losses on Loans.

² Excludes accrued interest receivable of $19.4 million and $20.5 million at March 31, 2024 and December 31, 2023, respectively, that is recorded in other assets on the consolidated balance sheets.

Schedule of changes in the allowance for loan losses by segment of loans based on method of impairment

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2024
Commercial	$	3,998	$	2,326	$	15	$	73	$	6,382
Leases		2,952		(33)		-		40		2,959
Commercial real estate – investor		17,105		(902)		16		83		16,270
Commercial real estate – owner occupied		12,280		2,580		3,887		19		10,992
Construction		1,038		59		-		-		1,097
Residential real estate – investor		669		(35)		-		2		636
Residential real estate – owner occupied		1,821		(169)		-		8		1,660
Multifamily		2,728		(135)		-		-		2,593
HELOC		1,656		(165)		-		17		1,508
Other		17		18		70		51		16
Total	$	44,264	$	3,544	$	3,988	$	293	$	44,113

			Provision for
	Beginning		(Release of)						Ending
Allowance for credit losses	Balance		Credit Losses		Charge-offs		Recoveries		Balance
Three months ended March 31, 2023
Commercial	$	11,968	$	(581)	$	27	$	151	$	11,511
Leases		2,865		774		882		9		2,766
Commercial real estate – investor		10,674		4,569		-		17		15,260
Commercial real estate – owner occupied		15,001		573		-		2		15,576
Construction		1,546		(501)		-		-		1,045
Residential real estate – investor		768		(41)		-		19		746
Residential real estate – owner occupied		2,046		(334)		-		10		1,722
Multifamily		2,453		212		-		-		2,665
HELOC		1,806		(47)		-		29		1,788
Other		353		28		113		45		313
Total	$	49,480	$	4,652	$	1,022	$	282	$	53,392

Schedule of collateral dependent loans and related loan allowances.

			Accounts								ACL
March 31, 2024	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	-	$	-	$	571	$	1,354	$	1,925	$	1,356
Leases		-		-		-		-		-		-
Commercial real estate – investor		16,128		-		-		-		16,128		3,569
Commercial real estate – owner occupied		30,847		-		-		-		30,847		1,239
Construction		7,119		-		-		-		7,119		-
Residential real estate – investor		409		-		-		-		409		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,373		-		-		-		1,373		-
HELOC		39		-		-		-		39		-
Total	$	57,421	$	-	$	571	$	1,354	$	59,346	$	6,164
			Accounts								ACL
December 31, 2023	Real Estate		Receivable		Equipment		Other		Total		Allocation
Commercial	$	837	$	797	$	-	$	-	$	1,634	$	2
Leases		-		-		321		-		321		320
Commercial real estate – investor		15,735		-		-		-		15,735		3,656
Commercial real estate – owner occupied		34,894		-		-		-		34,894		3,900
Construction		7,162		-		-		-		7,162		-
Residential real estate – investor		422		-		-		-		422		-
Residential real estate – owner occupied		1,506		-		-		-		1,506		-
Multifamily		1,402		-		-		-		1,402		-
HELOC		39		-		-		-		39		-
Total	$	61,997	$	797	$	321	$	-	$	63,115	$	7,878

Schedule of aged analysis of past due loans by class of loans

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
March 31, 2024	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	12,429	$	703	$	822	$	13,954	$	782,598	$	796,552	$	748
Leases		1,108		-		401		1,509		424,106		425,615		-
Commercial real estate – investor		434		-		4,966		5,400		1,012,982		1,018,382		-
Commercial real estate – owner occupied		971		3,776		22,899		27,646		754,957		782,603		-
Construction		4,220		-		7,119		11,339		157,835		169,174		-
Residential real estate – investor		-		54		249		303		51,219		51,522		-
Residential real estate – owner occupied		656		233		2,086		2,975		217,248		220,223		-
Multifamily		-		304		534		838		386,641		387,479		-
HELOC		177		237		268		682		98,080		98,762		41
Other		-		-		-		-		19,099		19,099		-
Total	$	19,995	$	5,307	$	39,344	$	64,646	$	3,904,765	$	3,969,411	$	789

													90 days or
					90 Days or								Greater Past
	30-59 Days		60-89 Days		Greater Past		Total Past						Due and
December 31, 2023	Past Due		Past Due		Due		Due		Current		Total Loans		Accruing
Commercial	$	982	$	-	$	1,228	$	2,210	$	839,487	$	841,697	$	1,155
Leases		599		-		347		946		397,277		398,223		-
Commercial real estate – investor		1,209		-		6,087		7,296		1,027,128		1,034,424		-
Commercial real estate – owner occupied		2,103		3,726		15,645		21,474		775,064		796,538		-
Construction		2,540		307		7,161		10,008		155,372		165,380		-
Residential real estate – investor		540		579		168		1,287		51,308		52,595		-
Residential real estate – owner occupied		553		125		1,944		2,622		223,626		226,248		-
Multifamily		1,085		-		233		1,318		400,378		401,696		-
HELOC		565		1,396		269		2,230		101,007		103,237		41
Other		-		1		-		1		22,914		22,915		-
Total	$	10,176	$	6,134	$	33,082	$	49,392	$	3,993,561	$	4,042,953	$	1,196

Schedule of loans on nonaccrual for which there was no related allowance

Nonaccrual loan detail	March 31, 2024		With no ACL		December 31, 2023		With no ACL
Commercial	$	1,998	$	644	$	870	$	870
Leases		595		595		639		318
Commercial real estate – investor		16,128		8,568		16,572		8,926
Commercial real estate – owner occupied		30,897		8,271		34,946		8,429
Construction		7,119		7,119		7,162		7,162
Residential real estate – investor		1,299		1,299		1,331		1,331
Residential real estate – owner occupied		3,031		3,031		3,078		3,078
Multifamily		1,959		1,959		1,775		1,775
HELOC		1,298		1,298		1,210		1,210
Other		-		-		-		-
Total	$	64,324	$	32,784	$	67,583	$	33,099

Schedule of credit quality indicators by class of loans

Credit quality indicators by loan segment and loan origination date at March 31, 2024 were as follows:

	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	10,284	$	313,611	$	125,215	$	28,810	$	10,497	$	19,834	$	252,098	$		$	760,349
Special Mention		-		-		3,598		3,064		111		-		14,187		-		20,960
Substandard		-		-		4,703		178		-		-		10,362		-		15,243
Total commercial		10,284		313,611		133,516		32,052		10,608		19,834		276,647		-		796,552
Leases
Pass		61,834		205,567	$	100,256		36,105		12,450		7,094		-		-		423,306
Special Mention		-		308		380		1,015		-		11		-		-		1,714
Substandard		-		-		392		203		-		-		-		-		595
Total leases		61,834		205,875		101,028		37,323		12,450		7,105		-		-		425,615
Commercial real estate – investor
Pass		46,126		200,397		341,405		170,710		94,342		101,984		20,264		-		975,228
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		1,648		4,128		2,796		5,286		17,065		12,231		-		43,154
Total commercial real estate – investor		46,126		202,045		345,533		173,506		99,628		119,049		32,495		-		1,018,382
Commercial real estate – owner occupied
Pass		7,877		137,719		151,782		185,939		85,511		124,527		1,828		-		695,183
Special Mention		-		1,638		18,249		1,452		3,104		1,710		-		-		26,153
Substandard		-		-		14,647		15,732		13,419		17,469		-		-		61,267
Total commercial real estate – owner occupied		7,877		139,357		184,678		203,123		102,034		143,706		1,828		-		782,603
Construction
Pass		10,236		42,569		77,717		26,818		95		1,747		2,525		-		161,707
Special Mention		-		-		348		-		-		-		-		-		348
Substandard		-		-		7,119		-		-		-		-		-		7,119
Total construction		10,236		42,569		85,184		26,818		95		1,747		2,525		-		169,174
Residential real estate – investor
Pass		1,101		4,925		14,269		8,516		6,137		13,704		1,506		-		50,158
Special Mention		-		-		-		65		-		-		-		-		65
Substandard		-		-		378		-		-		921		-		-		1,299
Total residential real estate – investor		1,101		4,925		14,647		8,581		6,137		14,625		1,506		-		51,522
Residential real estate – owner occupied
Pass		1,397		31,591		40,203		39,818		24,764		78,480		802		-		217,055
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		189		2,979		-		-		3,168
Total residential real estate – owner occupied		1,397		31,591		40,203		39,818		24,953		81,459		802		-		220,223
Multifamily
Pass		1,240		75,556		71,322		117,695		51,661		51,998		566		-		370,038
Special Mention		-		-		164		13,374		311		1,633		-		-		15,482
Substandard		-		-		976		-		214		769		-		-		1,959
Total multifamily		1,240		75,556		72,462		131,069		52,186		54,400		566		-		387,479
HELOC
Pass		725		2,678		2,534		449		1,545		4,297		84,886		-		97,114
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		25		-		41		292		1,290		-		1,648
Total HELOC		725		2,678		2,559		449		1,586		4,589		86,176		-		98,762
Other
Pass		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		1,575		3,354		1,601		1,029		127		144		11,269		-		19,099
Total loans
Pass		142,395		1,017,967		926,304		615,889		287,129		403,809		375,744		-		3,769,237
Special Mention		-		1,946		22,739		18,970		3,526		3,354		14,187		-		64,722
Substandard		-		1,648		32,368		18,909		19,149		39,495		23,883		-		135,452
Total loans	$	142,395	$	1,021,561	$	981,411	$	653,768	$	309,804	$	446,658	$	413,814	$	-	$	3,969,411

Credit quality indicators by loan segment and loan origination date at December 31, 2023, were as follows:

	2023		2022		2021		2020		2019		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial
Pass	$	318,569	$	136,668	$	35,901	$	11,983	$	18,390	$	3,426	$	298,931	$	1,408	$	825,276
Special Mention		-		2,737		707		171		-		-		4,392		-		8,007
Substandard		-		2,099		146		-		199		-		5,970		-		8,414
Total commercial		318,569		141,504		36,754		12,154		18,589		3,426		309,293		1,408		841,697
Leases
Pass		219,163		113,074	$	42,275		14,663		6,975		1,255		-		-		397,405
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		407		203		-		208		-		-		-		818
Total leases		219,163		113,481		42,478		14,663		7,183		1,255		-		-		398,223
Commercial real estate – investor
Pass		159,654		367,512		218,084		108,384		54,322		63,281		8,122		-		979,359
Special Mention		-		-		11,267		-		-		-		-		-		11,267
Substandard		-		-		838		5,327		15,658		9,648		12,327		-		43,798
Total commercial real estate – investor		159,654		367,512		230,189		113,711		69,980		72,929		20,449		-		1,034,424
Commercial real estate – owner occupied
Pass		124,059		134,383		177,553		103,109		42,839		91,062		33,243		-		706,248
Special Mention		1,650		17,415		9,585		3,128		218		3,681		-		-		35,677
Substandard		-		14,630		18,817		4,571		14,809		1,786		-		-		54,613
Total commercial real estate – owner occupied		125,709		166,428		205,955		110,808		57,866		96,529		33,243		-		796,538
Construction
Pass		42,808		66,513		32,942		100		1,593		1,083		3,186		-		148,225
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		9,993		-		7,162		-		-		17,155
Total construction		42,808		66,513		32,942		10,093		1,593		8,245		3,186		-		165,380
Residential real estate – investor
Pass		5,062		14,434		9,027		6,227		6,508		8,469		1,471		-		51,198
Special Mention		-		-		66		-		-		-		-		-		66
Substandard		-		390		-		-		408		533		-		-		1,331
Total residential real estate – investor		5,062		14,824		9,093		6,227		6,916		9,002		1,471		-		52,595
Residential real estate – owner occupied
Pass		32,574		41,528		40,335		25,322		14,233		68,277		763		-		223,032
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		191		685		2,340		-		-		3,216
Total residential real estate – owner occupied		32,574		41,528		40,335		25,513		14,918		70,617		763		-		226,248
Multifamily
Pass		55,310		79,060		123,834		72,539		12,231		40,825		562		-		384,361
Special Mention		-		168		13,425		322		1,645		-		-		-		15,560
Substandard		-		1,009		-		-		-		766		-		-		1,775
Total multifamily		55,310		80,237		137,259		72,861		13,876		41,591		562		-		401,696
HELOC
Pass		2,735		2,679		490		1,757		1,756		2,995		89,161		-		101,573
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		25		1		41		24		184		1,389		-		1,664
Total HELOC		2,735		2,704		491		1,798		1,780		3,179		90,550		-		103,237
Other
Pass		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Total other		4,060		2,278		1,569		153		85		73		14,697		-		22,915
Total loans
Pass		963,994		958,129		682,010		344,237		158,932		280,746		450,136		1,408		3,839,592
Special Mention		1,650		20,320		35,050		3,621		1,863		3,681		4,392		-		70,577
Substandard		-		18,560		20,005		20,123		31,991		22,419		19,686		-		132,784
Total loans	$	965,644	$	997,009	$	737,065	$	367,981	$	192,786	$	306,846	$	474,214	$	1,408	$	4,042,953

Schedule of gross charge-offs

Three months ended March 31, 2024	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving Loans Converted To Term Loans		Total
Commercial	$	-		-		-		-		-		15	$	-	$	-	$	15
Commercial real estate – investor		-		-		-		-		16		-		-		-		16
Commercial real estate – owner occupied		-				-		3,853		-		34		-		-		3,887
Other		-		-		-		-		-		70		-		-		70
Total	$	-	$	-	$	-	$	3,853	$	16	$	119		-		-	$	3,988

Schedule of class of financing receivable

March 31, 2024	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	247	$	-	$	-	$	247	0.0%
Commercial real estate – investor		-		-		1,958		1,958	0.2%
Commercial real estate – owner occupied		12,244		3,309		854		16,407	2.1%
Total	$	12,491	$	3,309	$	2,812	$	18,612	0.5%

March 31, 2023	Term Extension		Combination - Term Extension and Interest Rate Modification		Combination - Term Extension and Payment Modification (1)		Total Loans Modified		% of Total Loan Segment Modified to Total Loan Segment
Commercial	$	-	$	979	$	-	$	979	0.1%
Commercial real estate – investor		-		-		1,774		1,774	0.2%
HELOC		20		-		-		20	0.0%
Total	$	20	$	979	$	1,774	$	2,773	0.1%

¹ Payment modifications are either contractual delays in payment or a modification of the payment amount.

March 31, 2024	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	247	$	247
Commercial real estate – investor		-		-		-		-		1,958		1,958
Commercial real estate – owner occupied		-		-		-		-		16,407		16,407
Total	$	-	$	-	$	-	$	-	$	18,612	$	18,612

March 31, 2023	30-59 days past due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Loans Modified
Commercial	$	-	$	-	$	-	$	-	$	979	$	979
Commercial real estate – investor		-		-		-		-		1,774		1,774
HELOC		-		-		-		-		20		20
Total	$	-	$	-	$	-	$	-	$	2,773	$	2,773

March 31, 2024	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		-	%		-
Commercial real estate – investor		24.00		-			-
Commercial real estate – owner occupied		5.24		0.15			-
Total		7.20		0.15	%		-

March 31, 2023	Weighted-Average Term Extension (In Months)		Weighted-Average Interest Rate Change			Weighted-Average Delay of Payment (In Months)
Commercial		4.00		5.00	%		-
Commercial real estate – investor		8.00		-			7.00
HELOC		24.00		-			-
Total		6.71		5.00	%		7.00

XML

Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2024

Other Real Estate Owned

Schedule of activity in the other real estate owned (OREO) portfolio, net of valuation reserve

	Three Months Ended
	March 31,
Other real estate owned	2024		2023
Balance at beginning of period	$	5,123	$	1,561
Property additions, net of acquisition adjustments		-		291
Less:
Proceeds from property disposals, net of participation purchase and gains/losses		-		328
Period valuation write-down		-		269
Balance at end of period	$	5,123	$	1,255

Schedule of activity in valuation allowance

	Three Months Ended
	March 31,
	2024		2023
Balance at beginning of period	$	118	$	856
Provision for unrealized losses		-		269
Reductions taken on sales		-		(272)
Balance at end of period	$	118	$	853

Schedule of expenses related to foreclosed assets, net of lease revenue

	Three Months Ended
	March 31,
	2024		2023
Gain on sales, net	$	-	$	28
Provision for unrealized losses		-		269
Operating expenses		113		9
Less:
Lease revenue		67		-
Net OREO expense	$	46	$	306

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Deposits (Tables)

3 Months Ended

Mar. 31, 2024

Deposits

Schedule of major classifications of deposits

	March 31, 2024		December 31, 2023
Noninterest bearing demand	$	1,799,927	$	1,834,891
Savings		955,528		971,334
NOW accounts		569,814		565,375
Money market accounts		696,354		671,240
Certificates of deposit of less than $100,000		289,962		266,035
Certificates of deposit of $100,000 through $250,000		205,638		180,289
Certificates of deposit of more than $250,000		91,052		81,582
Total deposits	$	4,608,275	$	4,570,746

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Borrowings (Tables)

3 Months Ended

Mar. 31, 2024

Borrowings

Summary of borrowings and junior subordinated debentures

	March 31, 2024		December 31, 2023
Securities sold under repurchase agreements	$	33,546	$	26,470
Other short-term borrowings		220,000		405,000
Junior subordinated debentures1		25,773		25,773
Subordinated debentures		59,403		59,382
Total borrowings	$	338,722	$	516,625

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Equity Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2024

Equity Compensation Plans

Summary of changes in nonvested shares of restricted share rights

	March 31, 2024
		Weighted
	Restricted	Average
	Stock Shares	Grant Date
	and Units	Fair Value
Unvested at January 1	709,237	$	14.26
Granted	338,235		13.44
Vested	(204,969)		11.32
Forfeited	(3,000)		12.35
Unvested at March 31	839,503	$	14.65

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share

Schedule of Earnings Per Share

	Three Months Ended March 31,
	2024		2023
Basic earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Net income	$	21,312	$	23,607
Basic earnings per share	$	0.48	$	0.53
Diluted earnings per share:
Weighted-average common shares outstanding		44,758,559		44,619,118
Dilutive effect of unvested restricted awards 1		765,325		697,480
Diluted average common shares outstanding		45,523,884		45,316,598
Net Income	$	21,312	$	23,607
Diluted earnings per share	$	0.47	$	0.52
1 Includes the common stock equivalents for restricted share rights that are dilutive.

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Regulatory & Capital Matters (Tables)

3 Months Ended

Mar. 31, 2024

Regulatory & Capital Matters

Schedule of capital levels and industry defined regulatory minimum required levels

					Minimum Capital				Well Capitalized
					Adequacy with Capital				Under Prompt Corrective
	Actual				Conservation Buffer, if applicable1				Action Provisions2
	Amount		Ratio		Amount		Ratio		Amount		Ratio
March 31, 2024
Common equity tier 1 capital to risk weighted assets
Consolidated	$	566,730	12.02	%	$	330,042	7.00	%		N/A	N/A
Old Second Bank		614,947	13.06			329,604	7.00		$	306,061	6.50	%
Total capital to risk weighted assets
Consolidated		697,211	14.79			494,977	10.50			N/A	N/A
Old Second Bank		660,429	14.03			494,263	10.50			470,726	10.00
Tier 1 capital to risk weighted assets
Consolidated		591,730	12.55			400,773	8.50			N/A	N/A
Old Second Bank		614,947	13.06			400,233	8.50			376,690	8.00
Tier 1 capital to average assets
Consolidated		591,730	10.47			226,067	4.00			N/A	N/A
Old Second Bank		614,947	10.89			225,876	4.00			282,345	5.00
December 31, 2023
Common equity tier 1 capital to risk weighted assets
Consolidated	$	547,721	11.37	%	$	337,207	7.00	%		N/A	N/A
Old Second Bank		592,413	12.32			336,598	7.00		$	312,556	6.50	%
Total capital to risk weighted assets
Consolidated		677,076	14.06			505,640	10.50			N/A	N/A
Old Second Bank		636,768	13.24			504,990	10.50			480,943	10.00
Tier 1 capital to risk weighted assets
Consolidated		572,721	11.89			409,430	8.50			N/A	N/A
Old Second Bank		592,413	12.32			408,727	8.50			384,684	8.00
Tier 1 capital to average assets
Consolidated		572,721	10.06			227,722	4.00			N/A	N/A
Old Second Bank		592,413	10.41			227,632	4.00			284,540	5.00

¹ Amounts are shown inclusive of a capital conservation buffer of 2.50%.

² The prompt corrective action provisions are only applicable at the Bank level. The Bank exceeded the general minimum regulatory requirements to be considered “well capitalized.”

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Measurements

Schedule of balance of assets and liabilities which are measured at fair value on a recurring basis

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	171,000	$	-	$	-	$	171,000
U.S. government agencies		-		56,979		-		56,979
U.S. government agencies mortgage-backed		-		101,075		-		101,075
States and political subdivisions		-		209,839		12,903		222,742
Collateralized mortgage obligations		-		379,603		-		379,603
Asset-backed securities		-		64,222		2,485		66,707
Collateralized loan obligations		-		170,691		-		170,691
Loans held-for-sale		-		1,072		-		1,072
Mortgage servicing rights		-		-		10,564		10,564
Interest rate swap agreements, including risk participation agreement		-		6,001		-		6,001
Mortgage banking derivatives		-		49		-		49
Total	$	171,000	$	989,531	$	25,952	$	1,186,483
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,917	$	-	$	8,917
Total	$	-	$	8,917	$	-	$	8,917

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Assets:
Securities available-for-sale
U.S. Treasury	$	169,574	$	-	$	-	$	169,574
U.S. government agencies		-		56,959		-		56,959
U.S. government agencies mortgage-backed		-		106,370		-		106,370
States and political subdivisions		-		214,006		13,059		227,065
Collateralized mortgage obligations		-		392,544		-		392,544
Asset-backed securities		-		66,166		2,270		68,436
Collateralized loan obligations		-		171,881		-		171,881
Loans held-for-sale		-		1,322		-		1,322
Mortgage servicing rights		-		-		10,344		10,344
Interest rate swap agreements		-		5,391		-		5,391
Mortgage banking derivatives		-		(10)		-		(10)
Total	$	169,574	$	1,014,629	$	25,673	$	1,209,876
Liabilities:
Interest rate swap agreements, including risk participation agreements	$	-	$	8,324	$	-	$	8,324
Total	$	-	$	8,324	$	-	$	8,324

Schedule of changes in Level 3 assets and liabilities measured at fair value on a recurring basis

The changes in Level 3 assets and liabilities measured at fair value on a recurring basis are as follows:

		Three Months Ended March 31, 2024
	Securities available-for-sale
			States and		Mortgage
	Asset-backed		Political		Servicing
	Securities		Subdivisions		Rights
Beginning balance January 1, 2024	$	2,270	$	13,059	$	10,344
Transfers out of Level 3		-		-		-
Total gains or losses
Included in earnings		-		(33)		172
Included in other comprehensive income		(29)		(89)		-
Purchases, issuances, sales, and settlements
Purchases		259		-		-
Issuances		-		-		126
Settlements		(15)		(34)		(78)
Ending balance March 31, 2024	$	2,485	$	12,903	$	10,564

		Three Months Ended March 31, 2023
		Securities available-for-sale
			Collateralized		States and		Mortgage
	Asset-backed		Mortgage		Political		Servicing
	Securities		Obligations		Subdivisions		Rights
Beginning balance January 1, 2023	$	16,741	$	6,770	$	12,501	$	11,189
Transfers into Level 3		-		-		-		-
Transfers out of Level 3		(14,885)		(6,764)		-		-
Total gains or losses
Included in earnings		(11)		-		(34)		(471)
Included in other comprehensive income		219		(6)		430		-
Purchases, issuances, sales, and settlements
Purchases		406		-		-		-
Issuances		-		-		-		120
Settlements		(355)		-		(33)		(54)
Ending balance March 31, 2023	$	2,115	$	-	$	12,864	$	10,784

Schedule of quantitative information about level 3 fair value measurements

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as of March 31, 2024:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	12,903	Discounted Cash Flow	Discount Rate	3.2 – 3.7%	3.5	%
				Liquidity Premium	0.5 – 0.5%	0.5	%
Asset-backed securities	$	2,485	Discounted Cash Flow	Discount Rate	5.5 - 5.5%	5.5	%
Mortgage servicing rights	$	10,564	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.2 – 31.5%	6.1	%

The following table and commentary present quantitative and qualitative information about Level 3 fair value measurements as December 31, 2023:

						Weighted
Measured at fair value				Significant Unobservable		Average
on a recurring basis:	Fair Value		Valuation Methodology	Inputs	Range of Input	of Inputs
States and political subdivisions	$	13,059	Discounted Cash Flow	Discount Rate	3.2– 5.4%	4.7	%
				Liquidity Premium	0.5 - 0.5%	0.5	%
Asset-backed securities	$	2,270	Discounted Cash Flow	Discount Rate	5.6 - 5.6%	5.6	%
Mortgage servicing rights	$	10,344	Discounted Cash Flow	Discount Rate	9.0 – 11.0%	9.0	%
				Prepayment Speed	5.1 - 33.0%	6.6	%

Schedule of assets measured at fair value on a nonrecurring basis

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	53,182	$	53,182
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	58,305	$	58,305

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $59.3 million and a valuation allowance of $6.2 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $4.9 million for the three months ended March 31, 2024.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at March 31, 2024, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Individually evaluated loans1	$	-	$	-	$	66,180	$	66,180
Other real estate owned, net2		-		-		5,123		5,123
Total	$	-	$	-	$	71,303	$	71,303

¹ Represents carrying value and related write-downs of loans for which adjustments are substantially based on the appraised value of collateral for collateral-dependent loans, which had a carrying amount of $77.3 million and a valuation allowance of $11.1 million resulting in a decrease of specific allocations within the allowance for credit losses on loans of $6.5 million for the year December 31, 2023.

² OREO is measured at fair value, less costs to sell, and had a net carrying amount of $5.1 million at December 31, 2023, which is made up of the outstanding balance of $5.2 million, net of a valuation allowance of $118,000.

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Fair Values of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2024

Fair Values of Financial Instruments

Schedule of carrying amount and estimated fair values of financial instruments

	March 31, 2024
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	48,841	$	48,841	$	48,841	$	-	$	-
Interest earning deposits with financial institutions		49,253		49,253		49,253		-		-
Securities available-for-sale		1,168,797		1,168,797		171,000		982,409		15,388
FHLBC and FRBC stock		28,518		28,518		-		28,518		-
Loans held-for-sale		1,072		1,072		-		1,072		-
Net loans		3,925,298		3,841,563		-		-		3,841,563
Mortgage servicing rights		10,564		10,564						10,564
Interest rate swap agreements		5,947		5,947		-		5,947		-
Interest rate lock commitments and forward contracts		49		49		-		49		-
Interest receivable on securities and loans		25,735		25,735		-		25,735		-
Financial liabilities:
Noninterest bearing deposits	$	1,799,927	$	1,799,927	$	1,799,927	$	-	$	-
Interest bearing deposits		2,808,348		2,798,825		-		2,798,825		-
Securities sold under repurchase agreements		33,546		33,546		-		33,546		-
Other short-term borrowings		220,000		220,000		-		220,000		-
Junior subordinated debentures		25,773		20,619		-		20,619		-
Subordinated debentures		59,403		49,797		-		49,797		-
Interest rate swap agreements		8,917		8,917		-		8,917		-
Interest payable on deposits and borrowings		3,617		3,617		-		3,617		-

	December 31, 2023
	Carrying		Fair
	Amount		Value		Level 1		Level 2		Level 3
Financial assets:
Cash and due from banks	$	55,534	$	55,534	$	55,534	$	-	$	-
Interest earning deposits with financial institutions		44,611		44,611		44,611		-		-
Securities available-for-sale		1,192,829		1,192,829		169,574		1,007,926		15,329
FHLBC and FRBC stock		33,355		33,355		-		33,355		-
Loans held-for-sale		1,322		1,322		-		1,322		-
Net loans		3,998,689		3,876,381		-		-		3,876,381
Mortgage servicing rights		10,344		10,344						10,344
Interest rate swap agreements		5,302		5,302		-		5,302		-
Interest rate lock commitments and forward contracts		(10)		(10)		-		(10)		-
Interest receivable on securities and loans		27,159		27,159		-		27,159		-
Financial liabilities:
Noninterest bearing deposits	$	1,834,891	$	1,834,891	$	1,834,891	$	-	$	-
Interest bearing deposits		2,735,855		2,726,223		-		2,726,223		-
Securities sold under repurchase agreements		26,470		26,470		-		26,470		-
Junior subordinated debentures		405,000		405,000		-		405,000		-
Subordinated debentures		25,773		20,361		-		20,361		-
Senior notes		59,382		47,982				47,982
Interest rate swap agreements		8,234		8,324		-		8,324		-
Interest payable on deposits and borrowings		2,962		2,962		-		2,962		-

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Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk (Tables)

3 Months Ended

Mar. 31, 2024

Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk

Schedule of fair value of derivative financial instruments as well as their classification on the Balance Sheet

			March 31, 2024
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	3,361	Other Liabilities	6,331
Total derivatives designated as hedging instruments				3,361		6,331
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	16	106,958	Other Assets	2,586	Other Liabilities	2,586
Interest rate lock commitments and forward contracts	38	9,487	Other Assets	49	Other Liabilities	-
Other contracts	4	46,687	Other Assets	54	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,689		2,586
			December 31, 2023
	No. of Trans.	Notional Amount $	Balance Sheet Location	Fair Value $	Balance Sheet Location	Fair Value $
Derivatives designated as hedging instruments
Interest rate swap agreements	5	325,774	Other Assets	2,576	Other Liabilities	5,598
Total derivatives designated as hedging instruments				2,576		5,598
Derivatives not designated as hedging instruments
Interest rate swaps with commercial loan customers	17	104,777	Other Assets	2,726	Other Liabilities	2,726
Interest rate lock commitments and forward contracts	24	8,375	Other Assets	(10)	Other Liabilities	-
Other contracts	4	44,790	Other Assets	89	Other Liabilities	-
Total derivatives not designated as hedging instruments				2,805		2,726

Schedule of financial instrument commitments

	March 31, 2024						December 31, 2023
	Fixed		Variable		Total		Fixed		Variable		Total
Letters of credit:
Borrower:
Financial standby	$	229	$	17,276	$	17,505	$	173	$	16,621	$	16,794
Performance standby		562		12,344		12,906		562		13,689		14,251
		791		29,620		30,411		735		30,310		31,045
Non-borrower:
Performance standby		-		67		67		-		67		67
Total letters of credit	$	791	$	29,687	$	30,478	$	735	$	30,377	$	31,112
Unused loan commitments:	$	148,769	$	629,544	$	778,313	$	140,305	$	694,960	$	835,265

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Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Oct. 17, 2023
Goodwill and Core Deposit Intangible
Amortization of core deposit intangibles	$ 580	$ 624
Cash dividend declared (per share)			$ 0.05

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Securities - Amortized Cost and Fair Value (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)
Securities Available-for-Sale
Amortized Cost	$ 1,253,826	$ 1,276,981
Gross Unrealized Gains	1,043	1,818
Gross Unrealized Losses	(86,072)	(85,970)
Securities available-for-sale	1,168,797	1,192,829
Accrued interest receivable	6,300	6,600
FHLB and FRB Stock
FHLBC stock	13,600	18,500
FRBC stock	14,900	14,900
Securities pledged to secure deposits and for other purposes	804,900	810,200
Other disclosures
Securities available-for-sale	$ 1,168,797	1,192,829
Number of securities issued from originators | item	0
Number of originators | item	1
Minimum percentage of securities investment	10.00%
U.S. Treasury
Securities Available-for-Sale
Amortized Cost	$ 174,712	174,602
Gross Unrealized Losses	(3,712)	(5,028)
Securities available-for-sale	171,000	169,574
Other disclosures
Securities available-for-sale	171,000	169,574
U.S. government agencies
Securities Available-for-Sale
Amortized Cost	59,829	60,011
Gross Unrealized Losses	(2,850)	(3,052)
Securities available-for-sale	56,979	56,959
Other disclosures
Securities available-for-sale	56,979	56,959
U.S. government agencies mortgage-backed
Securities Available-for-Sale
Amortized Cost	114,061	118,492
Gross Unrealized Losses	(12,986)	(12,122)
Securities available-for-sale	101,075	106,370
Other disclosures
Securities available-for-sale	101,075	106,370
States and political subdivisions
Securities Available-for-Sale
Amortized Cost	233,343	236,072
Gross Unrealized Gains	682	1,325
Gross Unrealized Losses	(11,283)	(10,332)
Securities available-for-sale	222,742	227,065
Other disclosures
Securities available-for-sale	222,742	227,065
Collateralized mortgage obligations
Securities Available-for-Sale
Amortized Cost	431,084	442,987
Gross Unrealized Gains	272	421
Gross Unrealized Losses	(51,753)	(50,864)
Securities available-for-sale	379,603	392,544
Other disclosures
Securities available-for-sale	379,603	392,544
Asset-backed Securities
Securities Available-for-Sale
Amortized Cost	69,666	71,616
Gross Unrealized Gains	37	42
Gross Unrealized Losses	(2,996)	(3,222)
Securities available-for-sale	66,707	68,436
Other disclosures
Securities available-for-sale	66,707	68,436
Collateralized loan obligations.
Securities Available-for-Sale
Amortized Cost	171,131	173,201
Gross Unrealized Gains	52	30
Gross Unrealized Losses	(492)	(1,350)
Securities available-for-sale	170,691	171,881
Other disclosures
Securities available-for-sale	$ 170,691	$ 171,881

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Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Securities Available-for-Sale, Amortized Cost
Due in one year or less	$ 197,825
Due after one year through five years	53,675
Due after five years through ten years	56,283
Due after ten years	160,101
Debt securities excluding securities not due at a single maturity date	467,884
Total	$ 1,253,826	$ 1,276,981
Securities Available-for-Sale, Weighted Average Yield
Due in one year or less (as a percent)	1.05%
Due after one year through five years (as a percent)	1.92%
Due after five years through ten years (as a percent)	2.77%
Due after ten years (as a percent)	3.11%
Debt securities (as a percent)	2.06%
Total (as a percent)	2.99%
Securities Available-for-Sale, Fair Value
Due in one year or less	$ 193,861
Due after one year through five years	50,940
Due after five years through ten years	51,681
Due after ten years	154,239
Debt securities	450,721
Debt Securities, Available-for-sale, Total	1,168,797	1,192,829
Mortgage-backed and collateralized mortgage obligations
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	$ 545,145
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	2.43%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 480,678
Asset-backed Securities
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	69,666
Total	$ 69,666	71,616
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	4.06%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 66,707
Debt Securities, Available-for-sale, Total	66,707	68,436
Collateralized loan obligations.
Securities Available-for-Sale, Amortized Cost
Securities not due at a single maturity date	171,131
Total	$ 171,131	173,201
Securities Available-for-Sale, Weighted Average Yield
Securities not due at a single maturity date, Weighted Average Yield (as a percent)	6.84%
Securities Available-for-Sale, Fair Value
Securities not due at a single maturity date	$ 170,691
Debt Securities, Available-for-sale, Total	$ 170,691	$ 171,881

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Securities - Unrealized Loss Positions (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	22	14
Greater than 12 months in an unrealized loss position | security	353	353
Total	375	367
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 306,000	$ 145,000
Greater than 12 months in an unrealized loss position	85,766,000	85,825,000
Total	86,072,000	85,970,000
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	73,523,000	28,708,000
Greater than 12 months in an unrealized loss position	980,206,000	1,030,120,000
Total	$ 1,053,729,000	1,058,828,000
Effective duration (in years)	3 years
Credit losses were determined	$ 0	$ 0
Provision for credit losses on securities	$ 0
U.S. Treasury
Securities Available-for-Sale, Number of Securities
Greater than 12 months in an unrealized loss position | security	4	4
Total	4	4
Securities Available-for-Sale, Unrealized Losses
Greater than 12 months in an unrealized loss position	$ 3,712,000	$ 5,028,000
Total	3,712,000	5,028,000
Securities Available-for-Sale, Fair Value
Greater than 12 months in an unrealized loss position	171,000,000	169,574,000
Total	$ 171,000,000	$ 169,574,000
U.S. government agencies
Securities Available-for-Sale, Number of Securities
Greater than 12 months in an unrealized loss position | security	9	9
Total	9	9
Securities Available-for-Sale, Unrealized Losses
Greater than 12 months in an unrealized loss position	$ 2,850,000	$ 3,052,000
Total	2,850,000	3,052,000
Securities Available-for-Sale, Fair Value
Greater than 12 months in an unrealized loss position	56,979,000	56,959,000
Total	$ 56,979,000	$ 56,959,000
Mortgage Backed Securities, Issued by US Government Agencies
Securities Available-for-Sale, Number of Securities
Greater than 12 months in an unrealized loss position | security	128	128
Total	128	128
Securities Available-for-Sale, Unrealized Losses
Greater than 12 months in an unrealized loss position	$ 12,986,000	$ 12,122,000
Total	12,986,000	12,122,000
Securities Available-for-Sale, Fair Value
Greater than 12 months in an unrealized loss position	101,075,000	106,370,000
Total	$ 101,075,000	$ 106,370,000
States and political subdivisions
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	20	12
Greater than 12 months in an unrealized loss position | security	35	25
Total	55	37
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 299,000	$ 137,000
Greater than 12 months in an unrealized loss position	10,984,000	10,195,000
Total	11,283,000	10,332,000
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	63,127,000	27,974,000
Greater than 12 months in an unrealized loss position	126,955,000	106,138,000
Total	$ 190,082,000	$ 134,112,000
Collateralized mortgage obligations
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security		2
Greater than 12 months in an unrealized loss position | security	144	143
Total	144	145
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position		$ 8,000
Greater than 12 months in an unrealized loss position	$ 51,753,000	50,856,000
Total	51,753,000	50,864,000
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position		734,000
Greater than 12 months in an unrealized loss position	364,263,000	376,236,000
Total	$ 364,263,000	$ 376,970,000
Asset-backed Securities
Securities Available-for-Sale, Number of Securities
Greater than 12 months in an unrealized loss position | security	18	19
Total	18	19
Securities Available-for-Sale, Unrealized Losses
Greater than 12 months in an unrealized loss position	$ 2,996,000	$ 3,222,000
Total	2,996,000	3,222,000
Securities Available-for-Sale, Fair Value
Greater than 12 months in an unrealized loss position	60,864,000	63,941,000
Total	$ 60,864,000	$ 63,941,000
Collateralized loan obligations.
Securities Available-for-Sale, Number of Securities
Less than 12 months in an unrealized loss position | security	2
Greater than 12 months in an unrealized loss position | security	15	25
Total	17	25
Securities Available-for-Sale, Unrealized Losses
Less than 12 months in an unrealized loss position	$ 7,000
Greater than 12 months in an unrealized loss position	485,000	$ 1,350,000
Total	492,000	1,350,000
Securities Available-for-Sale, Fair Value
Less than 12 months in an unrealized loss position	10,396,000
Greater than 12 months in an unrealized loss position	99,070,000	150,902,000
Total	$ 109,466,000	$ 150,902,000

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Securities - Realized Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Securities
Proceeds from sales of securities	$ 5,331	$ 66,170
Gross realized gains on securities	1
Gross realized gains on securities	1
Gross realized losses on securities		(1,675)
Net realized losses	$ 1	(1,675)
Income tax benefit on net realized losses		$ 471
Effective tax rate applied (as a percent)	0.00%	28.10%

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Loans and Allowance for Credit Losses on Loans - Major Classifications (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans
Total Loans	$ 3,969,411	$ 4,042,953
Allowance for credit losses	(44,113)	(44,264)	$ (53,392)	$ (49,480)
Net loans	3,925,298	3,998,689
Commercial
Loans
Total Loans	796,552	841,697
Allowance for credit losses	(6,382)	(3,998)	(11,511)	(11,968)
Leases
Loans
Total Loans	425,615	398,223
Allowance for credit losses	(2,959)	(2,952)	(2,766)	(2,865)
Commercial real estate - Investor
Loans
Total Loans	1,018,382	1,034,424
Allowance for credit losses	(16,270)	(17,105)	(15,260)	(10,674)
Commercial real estate - Owner occupied
Loans
Total Loans	782,603	796,538
Allowance for credit losses	(10,992)	(12,280)	(15,576)	(15,001)
Construction
Loans
Total Loans	169,174	165,380
Residential real estate - Investor
Loans
Total Loans	51,522	52,595
Allowance for credit losses	(636)	(669)	(746)	(768)
Residential real estate - Owner occupied
Loans
Total Loans	220,223	226,248
Allowance for credit losses	(1,660)	(1,821)	(1,722)	(2,046)
Multifamily
Loans
Total Loans	387,479	401,696
Allowance for credit losses	(2,593)	(2,728)	(2,665)	(2,453)
HELOC
Loans
Total Loans	98,762	103,237
Allowance for credit losses	(1,508)	(1,656)	$ (1,788)	$ (1,806)
Other
Loans
Total Loans	$ 19,099	$ 22,915

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Loans and Allowance for Credit Losses on Loans - Major Classifications - Loan Concentrations (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Loans
Loans and leases receivable, accrued interest receivable	$ 19.4	$ 20.5
Real estate | Loan receivables | Customer Concentration Risk
Loans
Loans receivable as a percentage of total portfolio	68.70%	68.80%

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Loans and Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 44,264	$ 49,480
(Release of) Provision for Credit Losses	3,544	4,652
Charge-offs	3,988	1,022
Recoveries	293	282
Financing Receivable, Allowance for Credit Loss, Ending Balance	44,113	53,392
Net provision expense	3,500
Commercial
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	3,998	11,968
(Release of) Provision for Credit Losses	2,326	(581)
Charge-offs	15	27
Recoveries	73	151
Financing Receivable, Allowance for Credit Loss, Ending Balance	6,382	11,511
Leases
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,952	2,865
(Release of) Provision for Credit Losses	(33)	774
Charge-offs		882
Recoveries	40	9
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,959	2,766
Commercial real estate - Investor
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	17,105	10,674
(Release of) Provision for Credit Losses	(902)	4,569
Charge-offs	16
Recoveries	83	17
Financing Receivable, Allowance for Credit Loss, Ending Balance	16,270	15,260
Commercial real estate - Owner occupied
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	12,280	15,001
(Release of) Provision for Credit Losses	2,580	573
Charge-offs	3,887
Recoveries	19	2
Financing Receivable, Allowance for Credit Loss, Ending Balance	10,992	15,576
Real estate - construction
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,038	1,546
(Release of) Provision for Credit Losses	59	(501)
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,097	1,045
Residential real estate - Investor
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	669	768
(Release of) Provision for Credit Losses	(35)	(41)
Recoveries	2	19
Financing Receivable, Allowance for Credit Loss, Ending Balance	636	746
Residential real estate - Owner occupied
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,821	2,046
(Release of) Provision for Credit Losses	(169)	(334)
Recoveries	8	10
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,660	1,722
Multifamily
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,728	2,453
(Release of) Provision for Credit Losses	(135)	212
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,593	2,665
HELOC
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	1,656	1,806
(Release of) Provision for Credit Losses	(165)	(47)
Recoveries	17	29
Financing Receivable, Allowance for Credit Loss, Ending Balance	1,508	1,788
Other
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	17	353
(Release of) Provision for Credit Losses	18	28
Charge-offs	70	113
Recoveries	51	45
Financing Receivable, Allowance for Credit Loss, Ending Balance	16	313
Unfunded Loan Commitment
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,700
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,700	$ 3,800
Unfunded Loan Commitment | Other Liabilities [Member]
Allowance for loan losses:
ACL on unfunded commitments	$ 2,700

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Loans and Allowance for Credit Losses on Loans - Collateral dependent loans (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	$ 3,925,298,000	$ 3,998,689,000
ACL Allocation	44,113,000	44,264,000	$ 53,392,000	$ 49,480,000
Non accuring loan	500,000
Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	59,346,000	63,115,000
Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	57,421,000	61,997,000
Accounts Receivable | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI		797,000
Equipment | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	571,000	321,000
Other. | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,354,000
Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	6,164,000	7,878,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	6,382,000	3,998,000	11,511,000	11,968,000
Commercial | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,925,000	1,634,000
Commercial | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI		837,000
Commercial | Accounts Receivable | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI		797,000
Commercial | Equipment | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	571,000
Commercial | Other. | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,354,000
Commercial | Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	1,356,000	2,000
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	2,959,000	2,952,000	2,766,000	2,865,000
Leases | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI		321,000
Leases | Equipment | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI		321,000
Leases | Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation		320,000
Commercial real estate - Investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	16,270,000	17,105,000	15,260,000	10,674,000
Commercial real estate - Investor | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	16,128,000	15,735,000
Commercial real estate - Investor | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	16,128,000	15,735,000
Commercial real estate - Investor | Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	3,569,000	3,656,000
Commercial real estate - Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	10,992,000	12,280,000	15,576,000	15,001,000
Commercial real estate - Owner occupied | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	30,847,000	34,894,000
Commercial real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	30,847,000	34,894,000
Commercial real estate - Owner occupied | Collateral
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	1,239,000	3,900,000
Construction | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	7,119,000	7,162,000
Construction | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	7,119,000	7,162,000
Residential real estate - Investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	636,000	669,000	746,000	768,000
Residential real estate - Investor | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	409,000	422,000
Residential real estate - Investor | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	409,000	422,000
Residential real estate - Owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	1,660,000	1,821,000	1,722,000	2,046,000
Residential real estate - Owner occupied | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,506,000	1,506,000
Residential real estate - Owner occupied | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,506,000	1,506,000
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	2,593,000	2,728,000	2,665,000	2,453,000
Multifamily | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,373,000	1,402,000
Multifamily | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	1,373,000	1,402,000
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	1,508,000	1,656,000	1,788,000	1,806,000
HELOC | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	39,000	39,000
HELOC | Real Estate | Asset Pledged as Collateral without Right
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans, including deferred loan loan costs and PCI	39,000	39,000
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL Allocation	$ 16,000	$ 17,000	$ 313,000	$ 353,000

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Loans and Allowance for Credit Losses on Loans - Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Aged analysis of past due loans
Total Loans	$ 3,969,411	$ 4,042,953
Recorded Investment 90 days or Greater Past Due and Accruing	789	1,196
Special Mention [Member]
Aged analysis of past due loans
Total Loans	64,722	70,577
Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	64,646
Total Past Due Including PCI loans		49,392
30 to 59 Days Past Due
Aged analysis of past due loans
Current	19,995
Total Past Due Including PCI loans		10,176
60 to 89 Days Past Due
Aged analysis of past due loans
Current	5,307
Total Past Due Including PCI loans		6,134
90 Days or Greater Past Due
Aged analysis of past due loans
Current	39,344
Total Past Due Including PCI loans		33,082
Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	3,904,765
Current including PCI Loans		3,993,561
Commercial
Aged analysis of past due loans
Total Loans	796,552	841,697
Recorded Investment 90 days or Greater Past Due and Accruing	748	1,155
Commercial | Special Mention [Member]
Aged analysis of past due loans
Total Loans	20,960	8,007
Commercial | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	13,954	2,210
Commercial | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	12,429	982
Commercial | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	703
Commercial | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	822	1,228
Commercial | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	782,598	839,487
Leases
Aged analysis of past due loans
Total Loans	425,615	398,223
Leases | Special Mention [Member]
Aged analysis of past due loans
Total Loans	1,714
Leases | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	1,509	946
Leases | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	1,108	599
Leases | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	401	347
Leases | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	424,106	397,277
Commercial real estate - Investor
Aged analysis of past due loans
Total Loans	1,018,382	1,034,424
Commercial real estate - Investor | Special Mention [Member]
Aged analysis of past due loans
Total Loans		11,267
Commercial real estate - Investor | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	5,400	7,296
Commercial real estate - Investor | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	434	1,209
Commercial real estate - Investor | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	4,966	6,087
Commercial real estate - Investor | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	1,012,982	1,027,128
Commercial real estate - Owner occupied
Aged analysis of past due loans
Total Loans	782,603	796,538
Commercial real estate - Owner occupied | Special Mention [Member]
Aged analysis of past due loans
Total Loans	26,153	35,677
Commercial real estate - Owner occupied | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	27,646	21,474
Commercial real estate - Owner occupied | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	971	2,103
Commercial real estate - Owner occupied | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	3,776	3,726
Commercial real estate - Owner occupied | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	22,899	15,645
Commercial real estate - Owner occupied | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	754,957	775,064
Real estate - construction
Aged analysis of past due loans
Total Loans	169,174	165,380
Real estate - construction | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	11,339	10,008
Real estate - construction | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	4,220	2,540
Real estate - construction | 60 to 89 Days Past Due
Aged analysis of past due loans
Current		307
Real estate - construction | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	7,119	7,161
Real estate - construction | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	157,835	155,372
Residential real estate - Investor
Aged analysis of past due loans
Total Loans	51,522	52,595
Residential real estate - Investor | Special Mention [Member]
Aged analysis of past due loans
Total Loans	65	66
Residential real estate - Investor | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	303	1,287
Residential real estate - Investor | 30 to 59 Days Past Due
Aged analysis of past due loans
Current		540
Residential real estate - Investor | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	54	579
Residential real estate - Investor | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	249	168
Residential real estate - Investor | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	51,219	51,308
Residential real estate - Owner occupied
Aged analysis of past due loans
Total Loans	220,223	226,248
Residential real estate - Owner occupied | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	2,975	2,622
Residential real estate - Owner occupied | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	656	553
Residential real estate - Owner occupied | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	233	125
Residential real estate - Owner occupied | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	2,086	1,944
Residential real estate - Owner occupied | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	217,248	223,626
Multifamily
Aged analysis of past due loans
Total Loans	387,479	401,696
Multifamily | Special Mention [Member]
Aged analysis of past due loans
Total Loans	15,482	15,560
Multifamily | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	838	1,318
Multifamily | 30 to 59 Days Past Due
Aged analysis of past due loans
Current		1,085
Multifamily | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	304
Multifamily | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	534	233
Multifamily | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	386,641	400,378
HELOC
Aged analysis of past due loans
Total Loans	98,762	103,237
Recorded Investment 90 days or Greater Past Due and Accruing	41	41
HELOC | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current	682	2,230
HELOC | 30 to 59 Days Past Due
Aged analysis of past due loans
Current	177	565
HELOC | 60 to 89 Days Past Due
Aged analysis of past due loans
Current	237	1,396
HELOC | 90 Days or Greater Past Due
Aged analysis of past due loans
Current	268	269
HELOC | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	98,080	101,007
Other
Aged analysis of past due loans
Total Loans	19,099	22,915
Other | Financial Asset, Past Due [Member]
Aged analysis of past due loans
Current		1
Other | 60 to 89 Days Past Due
Aged analysis of past due loans
Current		1
Other | Financial Asset, Not Past Due [Member]
Aged analysis of past due loans
Current	$ 19,099	$ 22,914

XML

Loans and Allowance for Credit Losses on Loans - Nonaccruals (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non accrual including PCI Loans	$ 64,324,000	$ 67,583,000
Nonaccrual with no ACL	32,784,000	33,099,000
Interest on nonaccrual loans	34,000
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,998,000	870,000
Nonaccrual with no ACL	644,000	870,000
Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	595,000	639,000
Nonaccrual with no ACL	595,000	318,000
Commercial real estate - Investor
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	16,128,000	16,572,000
Nonaccrual with no ACL	8,568,000	8,926,000
Commercial real estate - Owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	30,897,000	34,946,000
Nonaccrual with no ACL	8,271,000	8,429,000
Real estate - construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	7,119,000	7,162,000
Nonaccrual with no ACL	7,119,000	7,162,000
Residential real estate - Investor
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,299,000	1,331,000
Nonaccrual with no ACL	1,299,000	1,331,000
Residential real estate - Owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,031,000	3,078,000
Nonaccrual with no ACL	3,031,000	3,078,000
Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,959,000	1,775,000
Nonaccrual with no ACL	1,959,000	1,775,000
HELOC
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,298,000	1,210,000
Nonaccrual with no ACL	$ 1,298,000	$ 1,210,000

XML

Loans and Allowance for Credit Losses on Loans - Credit Quality (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	$ 142,395,000	$ 965,644,000
2023 / 2022	1,021,561,000	997,009,000
2022/ 2021	981,411,000	737,065,000
2021 / 2020	653,768,000	367,981,000
2020/ 2019	309,804,000	192,786,000
Prior	446,658,000	306,846,000
Revolving Loans	413,814,000	474,214,000
Revolving Loans Converted To Term Loans		1,408,000
Total Loans	3,969,411,000	4,042,953,000
Minimum
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Loan commitment for inclusion in credit quality analysis	50,000
Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	142,395,000	963,994,000
2023 / 2022	1,017,967,000	958,129,000
2022/ 2021	926,304,000	682,010,000
2021 / 2020	615,889,000	344,237,000
2020/ 2019	287,129,000	158,932,000
Prior	403,809,000	280,746,000
Revolving Loans	375,744,000	450,136,000
Revolving Loans Converted To Term Loans		1,408,000
Total Loans	3,769,237,000	3,839,592,000
Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023		1,650,000
2023 / 2022	1,946,000	20,320,000
2022/ 2021	22,739,000	35,050,000
2021 / 2020	18,970,000	3,621,000
2020/ 2019	3,526,000	1,863,000
Prior	3,354,000	3,681,000
Revolving Loans	14,187,000	4,392,000
Total Loans	64,722,000	70,577,000
Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022	1,648,000	18,560,000
2022/ 2021	32,368,000	20,005,000
2021 / 2020	18,909,000	20,123,000
2020/ 2019	19,149,000	31,991,000
Prior	39,495,000	22,419,000
Revolving Loans	23,883,000	19,686,000
Total Loans	135,452,000	132,784,000
Commercial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	10,284,000	318,569,000
2023 / 2022	313,611,000	141,504,000
2022/ 2021	133,516,000	36,754,000
2021 / 2020	32,052,000	12,154,000
2020/ 2019	10,608,000	18,589,000
Prior	19,834,000	3,426,000
Revolving Loans	276,647,000	309,293,000
Revolving Loans Converted To Term Loans		1,408,000
Total Loans	796,552,000	841,697,000
Commercial | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	10,284,000	318,569,000
2023 / 2022	313,611,000	136,668,000
2022/ 2021	125,215,000	35,901,000
2021 / 2020	28,810,000	11,983,000
2020/ 2019	10,497,000	18,390,000
Prior	19,834,000	3,426,000
Revolving Loans	252,098,000	298,931,000
Revolving Loans Converted To Term Loans		1,408,000
Total Loans	760,349,000	825,276,000
Commercial | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		2,737,000
2022/ 2021	3,598,000	707,000
2021 / 2020	3,064,000	171,000
2020/ 2019	111,000
Revolving Loans	14,187,000	4,392,000
Total Loans	20,960,000	8,007,000
Commercial | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		2,099,000
2022/ 2021	4,703,000	146,000
2021 / 2020	178,000
2020/ 2019		199,000
Revolving Loans	10,362,000	5,970,000
Total Loans	15,243,000	8,414,000
Real estate - residential loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Mortgage loans in process of foreclosure	378,000	170,000
Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	61,834,000	219,163,000
2023 / 2022	205,875,000	113,481,000
2022/ 2021	101,028,000	42,478,000
2021 / 2020	37,323,000	14,663,000
2020/ 2019	12,450,000	7,183,000
Prior	7,105,000	1,255,000
Total Loans	425,615,000	398,223,000
Leases | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	61,834,000	219,163,000
2023 / 2022	205,567,000	113,074,000
2022/ 2021	100,256,000	42,275,000
2021 / 2020	36,105,000	14,663,000
2020/ 2019	12,450,000	6,975,000
Prior	7,094,000	1,255,000
Total Loans	423,306,000	397,405,000
Leases | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022	308,000
2022/ 2021	380,000
2021 / 2020	1,015,000
Prior	11,000
Total Loans	1,714,000
Leases | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		407,000
2022/ 2021	392,000	203,000
2021 / 2020	203,000
2020/ 2019		208,000
Total Loans	595,000	818,000
Commercial real estate - Investor
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	46,126,000	159,654,000
2023 / 2022	202,045,000	367,512,000
2022/ 2021	345,533,000	230,189,000
2021 / 2020	173,506,000	113,711,000
2020/ 2019	99,628,000	69,980,000
Prior	119,049,000	72,929,000
Revolving Loans	32,495,000	20,449,000
Total Loans	1,018,382,000	1,034,424,000
Commercial real estate - Investor | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	46,126,000	159,654,000
2023 / 2022	200,397,000	367,512,000
2022/ 2021	341,405,000	218,084,000
2021 / 2020	170,710,000	108,384,000
2020/ 2019	94,342,000	54,322,000
Prior	101,984,000	63,281,000
Revolving Loans	20,264,000	8,122,000
Total Loans	975,228,000	979,359,000
Commercial real estate - Investor | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2022/ 2021		11,267,000
Total Loans		11,267,000
Commercial real estate - Investor | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022	1,648,000
2022/ 2021	4,128,000	838,000
2021 / 2020	2,796,000	5,327,000
2020/ 2019	5,286,000	15,658,000
Prior	17,065,000	9,648,000
Revolving Loans	12,231,000	12,327,000
Total Loans	43,154,000	43,798,000
Commercial real estate - Owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	7,877,000	125,709,000
2023 / 2022	139,357,000	166,428,000
2022/ 2021	184,678,000	205,955,000
2021 / 2020	203,123,000	110,808,000
2020/ 2019	102,034,000	57,866,000
Prior	143,706,000	96,529,000
Revolving Loans	1,828,000	33,243,000
Total Loans	782,603,000	796,538,000
Commercial real estate - Owner occupied | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	7,877,000	124,059,000
2023 / 2022	137,719,000	134,383,000
2022/ 2021	151,782,000	177,553,000
2021 / 2020	185,939,000	103,109,000
2020/ 2019	85,511,000	42,839,000
Prior	124,527,000	91,062,000
Revolving Loans	1,828,000	33,243,000
Total Loans	695,183,000	706,248,000
Commercial real estate - Owner occupied | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023		1,650,000
2023 / 2022	1,638,000	17,415,000
2022/ 2021	18,249,000	9,585,000
2021 / 2020	1,452,000	3,128,000
2020/ 2019	3,104,000	218,000
Prior	1,710,000	3,681,000
Total Loans	26,153,000	35,677,000
Commercial real estate - Owner occupied | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		14,630,000
2022/ 2021	14,647,000	18,817,000
2021 / 2020	15,732,000	4,571,000
2020/ 2019	13,419,000	14,809,000
Prior	17,469,000	1,786,000
Total Loans	61,267,000	54,613,000
Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	10,236,000	42,808,000
2023 / 2022	42,569,000	66,513,000
2022/ 2021	85,184,000	32,942,000
2021 / 2020	26,818,000	10,093,000
2020/ 2019	95,000	1,593,000
Prior	1,747,000	8,245,000
Revolving Loans	2,525,000	3,186,000
Total Loans	169,174,000	165,380,000
Construction | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	10,236,000	42,808,000
2023 / 2022	42,569,000	66,513,000
2022/ 2021	77,717,000	32,942,000
2021 / 2020	26,818,000	100,000
2020/ 2019	95,000	1,593,000
Prior	1,747,000	1,083,000
Revolving Loans	2,525,000	3,186,000
Total Loans	161,707,000	148,225,000
Construction | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2022/ 2021	348,000
Total Loans	348,000
Construction | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2022/ 2021	7,119,000
2021 / 2020		9,993,000
Prior		7,162,000
Total Loans	7,119,000	17,155,000
Residential real estate - Investor
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,101,000	5,062,000
2023 / 2022	4,925,000	14,824,000
2022/ 2021	14,647,000	9,093,000
2021 / 2020	8,581,000	6,227,000
2020/ 2019	6,137,000	6,916,000
Prior	14,625,000	9,002,000
Revolving Loans	1,506,000	1,471,000
Total Loans	51,522,000	52,595,000
Residential real estate - Investor | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,101,000	5,062,000
2023 / 2022	4,925,000	14,434,000
2022/ 2021	14,269,000	9,027,000
2021 / 2020	8,516,000	6,227,000
2020/ 2019	6,137,000	6,508,000
Prior	13,704,000	8,469,000
Revolving Loans	1,506,000	1,471,000
Total Loans	50,158,000	51,198,000
Residential real estate - Investor | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2022/ 2021		66,000
2021 / 2020	65,000
Total Loans	65,000	66,000
Residential real estate - Investor | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		390,000
2022/ 2021	378,000
2020/ 2019		408,000
Prior	921,000	533,000
Total Loans	1,299,000	1,331,000
Residential real estate - Owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,397,000	32,574,000
2023 / 2022	31,591,000	41,528,000
2022/ 2021	40,203,000	40,335,000
2021 / 2020	39,818,000	25,513,000
2020/ 2019	24,953,000	14,918,000
Prior	81,459,000	70,617,000
Revolving Loans	802,000	763,000
Total Loans	220,223,000	226,248,000
Residential real estate - Owner occupied | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,397,000	32,574,000
2023 / 2022	31,591,000	41,528,000
2022/ 2021	40,203,000	40,335,000
2021 / 2020	39,818,000	25,322,000
2020/ 2019	24,764,000	14,233,000
Prior	78,480,000	68,277,000
Revolving Loans	802,000	763,000
Total Loans	217,055,000	223,032,000
Residential real estate - Owner occupied | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2021 / 2020		191,000
2020/ 2019	189,000	685,000
Prior	2,979,000	2,340,000
Total Loans	3,168,000	3,216,000
Multifamily
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,240,000	55,310,000
2023 / 2022	75,556,000	80,237,000
2022/ 2021	72,462,000	137,259,000
2021 / 2020	131,069,000	72,861,000
2020/ 2019	52,186,000	13,876,000
Prior	54,400,000	41,591,000
Revolving Loans	566,000	562,000
Total Loans	387,479,000	401,696,000
Multifamily | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,240,000	55,310,000
2023 / 2022	75,556,000	79,060,000
2022/ 2021	71,322,000	123,834,000
2021 / 2020	117,695,000	72,539,000
2020/ 2019	51,661,000	12,231,000
Prior	51,998,000	40,825,000
Revolving Loans	566,000	562,000
Total Loans	370,038,000	384,361,000
Multifamily | Special Mention [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		168,000
2022/ 2021	164,000	13,425,000
2021 / 2020	13,374,000	322,000
2020/ 2019	311,000	1,645,000
Prior	1,633,000
Total Loans	15,482,000	15,560,000
Multifamily | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		1,009,000
2022/ 2021	976,000
2020/ 2019	214,000
Prior	769,000	766,000
Total Loans	1,959,000	1,775,000
HELOC
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	725,000	2,735,000
2023 / 2022	2,678,000	2,704,000
2022/ 2021	2,559,000	491,000
2021 / 2020	449,000	1,798,000
2020/ 2019	1,586,000	1,780,000
Prior	4,589,000	3,179,000
Revolving Loans	86,176,000	90,550,000
Total Loans	98,762,000	103,237,000
HELOC | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	725,000	2,735,000
2023 / 2022	2,678,000	2,679,000
2022/ 2021	2,534,000	490,000
2021 / 2020	449,000	1,757,000
2020/ 2019	1,545,000	1,756,000
Prior	4,297,000	2,995,000
Revolving Loans	84,886,000	89,161,000
Total Loans	97,114,000	101,573,000
HELOC | Substandard [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023 / 2022		25,000
2022/ 2021	25,000	1,000
2021 / 2020		41,000
2020/ 2019	41,000	24,000
Prior	292,000	184,000
Revolving Loans	1,290,000	1,389,000
Total Loans	1,648,000	1,664,000
Other
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,575,000	4,060,000
2023 / 2022	3,354,000	2,278,000
2022/ 2021	1,601,000	1,569,000
2021 / 2020	1,029,000	153,000
2020/ 2019	127,000	85,000
Prior	144,000	73,000
Revolving Loans	11,269,000	14,697,000
Total Loans	19,099,000	22,915,000
Other | Pass [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024 / 2023	1,575,000	4,060,000
2023 / 2022	3,354,000	2,278,000
2022/ 2021	1,601,000	1,569,000
2021 / 2020	1,029,000	153,000
2020/ 2019	127,000	85,000
Prior	144,000	73,000
Revolving Loans	11,269,000	14,697,000
Total Loans	$ 19,099,000	$ 22,915,000

XML

Loans and Allowance for Credit Losses on Loans - Charge-offs Activity by Loan Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Loans by risk rating
2021	$ 3,853
2020	16
Prior	119
Total	3,988	$ 1,022
Commercial
Loans by risk rating
Prior	15
Total	15	27
Leases
Loans by risk rating
Total		882
Commercial real estate - Investor
Loans by risk rating
2020	16
Total	16
Commercial real estate - Owner occupied
Loans by risk rating
2021	3,853
Prior	34
Total	3,887
Other
Loans by risk rating
Prior	70
Total	$ 70	$ 113

XML

Loans and Allowance for Credit Losses on Loans - TDR (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) loan	Mar. 31, 2024 USD ($)	Mar. 31, 2024 USD ($) item	Mar. 31, 2023 USD ($) loan
Troubled debt restructurings - modified during the period
Number of payment modification	6		2	3
Total Loans modified	$ 18,612	$ 18,612	$ 18,612	$ 2,773
Payment default		0		$ 0
Other information
Number of payment modification	6		2	3
Commercial
Troubled debt restructurings - modified during the period
Total Loans modified	$ 247	$ 247	$ 247	$ 979

XML

Loans and Allowance for Credit Losses on Loans - Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable
Total Loans modified	$ 18,612	$ 2,773
Total Loan Segment Modified to Total Loan Segment	0.50%	0.10%
Weighted-Average Term Extension (In Months)	7 months 6 days	6 months 21 days
Weighted-Average Interest Rate Change	0.15%	5.00%
Weighted-Average Delay of Payment (In Months)		7 months
Current
Financing Receivable
Total Loans modified	$ 18,612	$ 2,773
Term Extension
Financing Receivable
Total Loans modified	12,491	20
Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified	2,812	1,774
Combination - Term Extension and Interest Rate Modification
Financing Receivable
Total Loans modified	3,309	979
Commercial
Financing Receivable
Total Loans modified	$ 247	$ 979
Total Loan Segment Modified to Total Loan Segment	0.00%	0.10%
Weighted-Average Term Extension (In Months)	4 months	4 months
Weighted-Average Interest Rate Change		5.00%
Commercial | Current
Financing Receivable
Total Loans modified	$ 247	$ 979
Commercial | Term Extension
Financing Receivable
Total Loans modified	247
Commercial | Combination - Term Extension and Interest Rate Modification
Financing Receivable
Total Loans modified		979
Commercial real estate - Investor
Financing Receivable
Total Loans modified	$ 1,958	$ 1,774
Total Loan Segment Modified to Total Loan Segment	0.20%	0.20%
Weighted-Average Term Extension (In Months)	24 months	8 months
Weighted-Average Delay of Payment (In Months)		7 months
Commercial real estate - Investor | Current
Financing Receivable
Total Loans modified	$ 1,958	$ 1,774
Commercial real estate - Investor | Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified	1,958	1,774
Commercial real estate - Owner occupied
Financing Receivable
Total Loans modified	$ 16,407
Total Loan Segment Modified to Total Loan Segment	2.10%
Weighted-Average Term Extension (In Months)	5 months 7 days
Weighted-Average Interest Rate Change	0.15%
Commercial real estate - Owner occupied | Current
Financing Receivable
Total Loans modified	$ 16,407
Commercial real estate - Owner occupied | Term Extension
Financing Receivable
Total Loans modified	12,244
Commercial real estate - Owner occupied | Combination - Term Extension and Payment Modification
Financing Receivable
Total Loans modified	854
Commercial real estate - Owner occupied | Combination - Term Extension and Interest Rate Modification
Financing Receivable
Total Loans modified	$ 3,309
HELOC
Financing Receivable
Total Loans modified		$ 20
Total Loan Segment Modified to Total Loan Segment		0.00%
Weighted-Average Term Extension (In Months)		24 months
HELOC | Current
Financing Receivable
Total Loans modified		$ 20
HELOC | Term Extension
Financing Receivable
Total Loans modified		$ 20

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Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Activity in the other real estate owned (OREO) portfolio, net of valuation reserve
Balance at beginning of period	$ 5,123	$ 1,561
Property additions, net of acquisition adjustments		291
Less: Proceeds from property disposals, net of participation purchase and of gains/losses		328
Less: Period valuation write-down		269
Balance at end of period	5,123	1,255
Activity in the valuation allowance
Balance at beginning of period	118	856
Provision for unrealized losses		269
Reductions taken on sales		(272)
Balance at end of period	118	853
Expenses related to foreclosed assets, net of lease revenue
Gain on sales, net		28
Provision for unrealized losses		269
Operating expenses	113	9
Less: Lease revenue	67
Net OREO expense	$ 46	$ 306

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Deposits - Classifications of Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Deposits
Noninterest bearing demand	$ 1,799,927	$ 1,834,891
Savings	955,528	971,334
NOW accounts	569,814	565,375
Money market accounts	696,354	671,240
Certificates of deposit of less than $100,000	289,962	266,035
Certificates of deposit of $100,000 through $250,000	205,638	180,289
Certificates of deposit of more than $250,000	91,052	81,582
Total deposits	$ 4,608,275	$ 4,570,746

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Borrowings - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Borrowings
Total borrowings	$ 338,722	$ 516,625
Securities sold under repurchase agreements
Borrowings
Total borrowings	33,546	26,470
Other short-term borrowings
Borrowings
Total borrowings	220,000	405,000
Junior Subordinated Debentures
Borrowings
Total borrowings	25,773	25,773
Subordinated debentures
Borrowings
Total borrowings	$ 59,403	$ 59,382

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Borrowings - Additional information (Details) $ in Thousands			1 Months Ended	3 Months Ended
	Feb. 24, 2023 USD ($)	Feb. 24, 2020 USD ($)	Dec. 31, 2016	Mar. 31, 2024 USD ($) item	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2023 USD ($)
Borrowings
Number of customers having secured balances exceeding specified percentage of stockholders equity | item				0
Threshold percentage of stockholders' equity				10.00%
Borrowings at FHLBC as percentage of total assets				35.00%
FHLBC stock				$ 13,600				$ 18,500
Proceeds from term note		$ 30,000
Repayment of term note						$ 9,000
Basis points added to reference rate (as a percent)		1.75%
Outstanding, net of deferred issuance costs				59,400				59,400
Asset Pledged as Collateral with Right | Securities sold under repurchase agreements
Borrowings
Investment securities pledged with financial institutions, dollars				45,200				45,700
Securities sold under repurchase agreements
Borrowings
Investment securities pledged with financial institutions, dollars				$ 33,500				26,500
Federal Home Loan Bank Advances
Borrowings
Borrowings at FHLBC as percentage of book value of certain mortgage loans				60.00%
FHLBC advance amount				$ 220,000				$ 405,000
FHLBC stock				13,600
Principal balance of loans collateralized				1,440,000
Combined collateral value				998,900,000
Amount available for additional borrowings				$ 778,900
Senior Notes [Member]
Borrowings
Interest rate (as a percent)			5.75%
Debt Instrument, Term			10 years
Interest rate term			5 years
Effective interest rate					9.39%
Debt issuance costs					$ 362
Debt instrument redemption price, percentage				100.00%	12.85%
Debt redeemed amount					$ 45,000
Senior Notes [Member] | Debt Instrument Variable Rate Base LIBOR [Member]
Borrowings
Basis points added to reference rate (as a percent)			3.85%
Term Debt
Borrowings
Proceeds from term note		$ 20,000
Repayment of term note	$ 9,000
Debt term		3 years
Subordinated Notes Due 2031
Borrowings
Interest rate (as a percent)							3.50%
Face amount							$ 60,000
Subordinated Notes Due 2031 | Three Months Secured Overnight Financing Rate
Borrowings
Basis points added to reference rate (as a percent)							2.73%

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Junior Subordinated Debentures - Issuance (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended	7 Months Ended
	Apr. 30, 2007	Mar. 31, 2024	Jun. 15, 2017	Dec. 31, 2017	Dec. 31, 2023	Mar. 31, 2023
Junior subordinated debentures
Junior subordinated debentures		$ 25,773			$ 25,773
Old Second Capital Trust II [Member]
Junior subordinated debentures
Proceeds from sale of cumulative trust preferred securities	$ 25,000
Maturity Period		30 years
Cash distribution fixed rate of trust preferred securities (as a percent)			6.77%
Basis points added to cash distribution floating rate base (as a percent)				1.50%
Cash distribution, floating rate base		three-month SOFR
Amortization period		30 years
Old Second Capital Trust II [Member] | Debt Instrument, Redemption, Period One [Member]
Junior subordinated debentures
Interest rate (as a percent)		4.37%				4.39%
Junior Subordinated Debentures
Junior subordinated debentures
Junior Subordinated Debentures issuance cost		$ 1,000			$ 1,000
Junior Subordinated Debentures | Old Second Capital Trust II [Member]
Junior subordinated debentures
Junior subordinated debentures		$ 25,800

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Equity Compensation Plans (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	May 31, 2021	Mar. 31, 2024	Mar. 31, 2023	May 31, 2019
Equity Compensation Plans
Total compensation cost		$ 1.2	$ 948,000.0
Vesting Percentage , Fully Vest , Performance measure		50.00%
Minimum
Equity Compensation Plans
Vesting Percentage , Fully Vest , Performance measure		50.00%
Maximum
Equity Compensation Plans
Vesting Percentage , Pro rata , Performance measure		50.00%
2019 Plan
Equity Compensation Plans
Number of shares authorized	1,800,000			600,000
Increase in number of shares authorized	1,200,000
Number of shares available for issuance		712,201

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Equity Compensation Plans - Restricted Stock and RSUs (Details) - Restricted Stock and Restricted Stock Units [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Changes in unvested awards
Nonvested at the beginning of the period (in shares)	709,237
Granted (in shares)	338,235	230,399
Vested (in shares)	(204,969)
Forfeited (in shares)	(3,000)
Nonvested at the end of the period (in shares)	839,503
Weighted Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 14.26
Granted (in dollars per share)	13.44
Vested (in dollars per share)	11.32
Forfeited (in dollars per share)	12.35
Nonvested at the end of the period (in dollars per share)	$ 14.65
Additional information
Total unrecognized compensation cost of restricted awards	$ 6.9
Expected weighted-average period for recognition of unrecognized compensation	2 years 2 months 8 days

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Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic earnings per share:
Weighted-average common shares outstanding	44,758,559	44,619,118
Net income	$ 21,312	$ 23,607
Basic earnings per share	$ 0.48	$ 0.53
Diluted earnings per share:
Weighted-average common shares outstanding	44,758,559	44,619,118
Diluted average common shares outstanding	45,523,884	45,316,598
Net earnings available to common stockholders	$ 21,312	$ 23,607
Diluted earnings per share	$ 0.47	$ 0.52
Restricted Stock and Restricted Stock Units [Member]
Diluted earnings per share:
Dilutive effect of share-based payment awards (in shares)	765,325	697,480

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Regulatory & Capital Matters (Details) $ in Millions		3 Months Ended	12 Months Ended
	Nov. 06, 2023 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)		0.1047	0.1006
Risk-based capital ratio (as a percent)		0.1479	0.1406
Payments of Dividends	$ 2.2
Deferment of impact on retained earnings		$ 951,000.0
Subsidiaries [Member]
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)		0.1089	0.1041
Risk-based capital ratio (as a percent)		0.1403	0.1324
Tier One leverage ratio, basis point increase (as a percent)		0.48%
Risk-based capital ratio, basis point increase (as a percent)			0.79%
Minimum | Subsidiaries [Member]
Regulatory & Capital Matters
Tier 1 capital leverage ratio (as a percent)		0.08
Risk-based capital ratio (as a percent)		0.12
Tier 1 capital leverage ratio, board-designated threshold		8.00%
Total Capital Ratio, board-designated threshold (as a percent)		12.00%

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Regulatory & Capital Matters - Capital Levels and Industry Defined Regulatory Minimums (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Common equity tier 1 capital to risk weighted assets
Actual	$ 566,730	$ 547,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 330,042	$ 337,207
Common equity tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1202%	0.1137%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	7.00%	0.07%
Total capital to risk weighted assets, Amount
Actual at period end	$ 697,211	$ 677,076
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 494,977	$ 505,640
Total capital to risk weighted assets, Ratio
Risk-based capital ratio (as a percent)	0.1479	0.1406
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.1050	0.1050
Tier 1 capital to risk weighted assets, Amount
Actual	$ 591,730	$ 572,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 400,773	$ 409,430
Tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1255	0.1189
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0850	0.0850
Tier 1 capital to average assets, Amount
Actual	$ 591,730	$ 572,721
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	$ 226,067	$ 227,722
Tier 1 capital to average assets, Ratio
Tier 1 capital leverage ratio (as a percent)	0.1047	0.1006
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0400	0.0400
Subsidiaries [Member]
Common equity tier 1 capital to risk weighted assets
Actual	$ 614,947	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	329,604	336,598
Minimum Required to Be Well Capitalized	$ 306,061	$ 312,556
Common equity tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1306%	0.1232%
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	7.00%	0.07%
Minimum Required to Be Well Capitalized (as a percent)	6.50%	6.50%
Total capital to risk weighted assets, Amount
Actual at period end	$ 660,429	$ 636,768
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	494,263	504,990
Minimum Required to Be Well Capitalized	$ 470,726	$ 480,943
Total capital to risk weighted assets, Ratio
Risk-based capital ratio (as a percent)	0.1403	0.1324
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.1050	0.1050
Minimum Required to Be Well Capitalized (as a percent)	0.1000	0.1000
Tier 1 capital to risk weighted assets, Amount
Actual	$ 614,947	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	400,233	408,727
Minimum Required to Be Well Capitalized	$ 376,690	$ 384,684
Tier 1 capital to risk weighted assets, Ratio
Actual (as a percent)	0.1306	0.1232
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0850	0.0850
Minimum Required to Be Well Capitalized (as a percent)	0.0800	0.0800
Tier 1 capital to average assets, Amount
Actual	$ 614,947	$ 592,413
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable	225,876	227,632
Minimum Required to Be Well Capitalized	$ 282,345	$ 284,540
Tier 1 capital to average assets, Ratio
Tier 1 capital leverage ratio (as a percent)	0.1089	0.1041
Minimum Required for Capital Adequacy Purposes with Capital Conservation Buffer if applicable (as a percent)	0.0400	0.0400
Minimum Required to Be Well Capitalized (as a percent)	0.0500	0.0500

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Regulatory & Capital Matters - Dividend Restrictions and Deferrals (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Dividend Restrictions and Deferrals
Number of previous years retained profit considered for dividend payment	2 years
Minimum capital requirements, minimum percentage required	2.50%
Payments of dividends	$ 93.7

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Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets into level 3	$ 0
Asset-backed Securities
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets out of level 3		$ 14,885
Collateralized loan obligations.
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value transfer assets out of level 3		$ (6,800)

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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Securities available-for-sale	$ 1,168,797	$ 1,192,829
Mortgage servicing rights	10,564	10,344
U.S. Treasury
Assets:
Securities available-for-sale	171,000	169,574
U.S. government agencies
Assets:
Securities available-for-sale	56,979	56,959
States and political subdivisions
Assets:
Securities available-for-sale	222,742	227,065
Collateralized mortgage obligations
Assets:
Securities available-for-sale	379,603	392,544
Asset-backed Securities
Assets:
Securities available-for-sale	66,707	68,436
Collateralized loan obligations.
Assets:
Securities available-for-sale	170,691	171,881
Fair Value, Inputs, Level 1 [Member]
Assets:
Securities available-for-sale	171,000	169,574
Fair Value, Inputs, Level 2 [Member]
Assets:
Securities available-for-sale	982,409	1,007,926
Loans held-for-sale	1,072	1,322
Other assets	5,947	5,302
Liabilities:
Other liabilities	8,917	8,324
Fair Value, Inputs, Level 3 [Member]
Assets:
Securities available-for-sale	15,388	15,329
Mortgage servicing rights	10,564	10,344
Fair Value, Measurements, Recurring [Member]
Assets:
Loans held-for-sale	1,072	1,322
Mortgage servicing rights	10,564	10,344
Total financial assets	1,186,483	1,209,876
Liabilities:
Total	8,917	8,324
Fair Value, Measurements, Recurring [Member] | Interest rate swap agreements, including risk participation agreement
Assets:
Other assets	6,001	5,391
Liabilities:
Other liabilities	8,917	8,324
Fair Value, Measurements, Recurring [Member] | Forward Contracts [Member]
Assets:
Other assets	49	(10)
Fair Value, Measurements, Recurring [Member] | U.S. Treasury
Assets:
Securities available-for-sale	171,000	169,574
Fair Value, Measurements, Recurring [Member] | U.S. government agencies
Assets:
Securities available-for-sale	56,979	56,959
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities, Issued by US Government Agencies
Assets:
Securities available-for-sale	101,075	106,370
Fair Value, Measurements, Recurring [Member] | States and political subdivisions
Assets:
Securities available-for-sale	222,742	227,065
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations
Assets:
Securities available-for-sale	379,603	392,544
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities
Assets:
Securities available-for-sale	66,707	68,436
Fair Value, Measurements, Recurring [Member] | Collateralized loan obligations.
Assets:
Securities available-for-sale	170,691	171,881
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets:
Total financial assets	171,000	169,574
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Treasury
Assets:
Securities available-for-sale	171,000	169,574
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Assets:
Loans held-for-sale	1,072	1,322
Total financial assets	989,531	1,014,629
Liabilities:
Total	8,917	8,324
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest rate swap agreements, including risk participation agreement
Assets:
Other assets	6,001	5,391
Liabilities:
Other liabilities	8,917	8,324
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member]
Assets:
Other assets	49	(10)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. government agencies
Assets:
Securities available-for-sale	56,979	56,959
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities, Issued by US Government Agencies
Assets:
Securities available-for-sale	101,075	106,370
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and political subdivisions
Assets:
Securities available-for-sale	209,839	214,006
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized mortgage obligations
Assets:
Securities available-for-sale	379,603	392,544
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities
Assets:
Securities available-for-sale	64,222	66,166
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized loan obligations.
Assets:
Securities available-for-sale	170,691	171,881
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets:
Mortgage servicing rights	10,564	10,344
Total financial assets	25,952	25,673
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | States and political subdivisions
Assets:
Securities available-for-sale	12,903	13,059
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities
Assets:
Securities available-for-sale	$ 2,485	$ 2,270

XML

Fair Value Measurements - Changes in Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Changes in Level 3
Transfers into Level 3	$ 0
Collateralized Mortgage Obligations
Changes in Level 3
Beginning balance		$ 6,770
Transfers out of Level 3		(6,764)
Total gains or losses
Included in other comprehensive income		(6)
Asset-backed Securities
Changes in Level 3
Beginning balance	2,270	16,741
Transfers out of Level 3		(14,885)
Total gains or losses
Included in earnings		(11)
Included in other comprehensive income	(29)	219
Purchases, issuances, sales, and settlements
Purchases	259	406
Settlements	(15)	(355)
Ending balance	2,485	2,115
Collateralized loan obligations.
Changes in Level 3
Transfers out of Level 3		6,800
States and political subdivisions
Changes in Level 3
Beginning balance	13,059	12,501
Total gains or losses
Included in earnings	(33)	(34)
Included in other comprehensive income	(89)	430
Purchases, issuances, sales, and settlements
Settlements	(34)	(33)
Ending balance	12,903	12,864
Mortgage Servicing rights
Changes in Level 3
Beginning balance	10,344	11,189
Total gains or losses
Included in earnings	172	(471)
Purchases, issuances, sales, and settlements
Issuances	126	120
Settlements	(78)	(54)
Ending balance	$ 10,564	$ 10,784

XML

Fair Value Measurements - Quantitative and Qualitative Information (Details)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	$ 10,564,000	$ 10,344,000
Securities available-for-sale, at fair value	1,168,797,000	1,192,829,000
Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	10,564,000	10,344,000
Securities available-for-sale, at fair value	15,388,000	15,329,000
Asset-backed Securities
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	66,707,000	68,436,000
States and political subdivisions
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	222,742,000	227,065,000
Collateralized mortgage obligations
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	379,603,000	392,544,000
Fair Value, Measurements, Recurring [Member]
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	10,564,000	10,344,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	10,564,000	10,344,000
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	66,707,000	68,436,000
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	2,485,000	2,270,000
Fair Value, Measurements, Recurring [Member] | States and political subdivisions
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	222,742,000	227,065,000
Fair Value, Measurements, Recurring [Member] | States and political subdivisions | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	12,903,000	13,059,000
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	379,603,000	392,544,000
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	$ 2,485,000	$ 2,270,000
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.055	0.056
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.055	0.056
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member]
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.055	0.056
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Mortgage servicing rights, fair value	$ 10,564,000	$ 10,344,000
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input		0.090
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input		0.110
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member]
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.090	0.090
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member]
Quantitative information about Level 3 fair value measurements
Securities available-for-sale, at fair value	$ 12,903,000	$ 13,059,000
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.090
Debt Securities, Measurement Input	0.032	0.032
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.110
Debt Securities, Measurement Input	0.037	0.054
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member]
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.035	0.047
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.052	0.051
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.315	0.330
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member]
Quantitative information about Level 3 fair value measurements
Servicing Asset, Measurement Input	0.061	0.066
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member]
Quantitative information about Level 3 fair value measurements
Debt Securities, Measurement Input	0.005	0.005

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Fair Value Measurements - Nonrecurring (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Assets and liabilities measured at fair value
Carrying value of other real estate owned	$ 5,123,000	$ 5,123,000	$ 1,255,000	$ 1,561,000
OREO Valuation allowance	118,000	118,000	$ 853,000	$ 856,000
Impaired Loans [Member] | Reported Value Measurement [Member]
Assets and liabilities measured at fair value
Increase (decrease) of specific allocations within the provision for loan losses		6,500,000
Fair Value, Measurements, Nonrecurring [Member]
Assets and liabilities measured at fair value
Total	58,305,000	71,303,000
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member]
Assets and liabilities measured at fair value
Total	53,182,000	66,180,000
Valuation allowance	6,200,000	11,100,000
Decrease of specific allocations within the provision for loan losses	4,900,000
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Reported Value Measurement [Member]
Assets and liabilities measured at fair value
Total	59,300,000	77,300,000
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member]
Assets and liabilities measured at fair value
Total	5,123,000	5,123,000
Carrying value of other real estate owned	5,100,000	5,100,000
Outstanding balance	5,200,000	5,200,000
OREO Valuation allowance	118,000	118,000,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets and liabilities measured at fair value
Total	58,305,000	71,303,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets and liabilities measured at fair value
Total	53,182,000	66,180,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member]
Assets and liabilities measured at fair value
Total	$ 5,123,000	$ 5,123,000

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Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets:
Cash and due from banks	$ 48,841	$ 55,534
Interest earning deposits with financial institutions	49,253	44,611
Securities available-for-sale	1,168,797	1,192,829
FHLBC and FRBC Stock	28,518	33,355
Mortgage servicing rights	10,564	10,344
Financial liabilities:
Noninterest bearing deposits	1,799,927	1,834,891
Other short-term borrowings	220,000	405,000
Junior subordinated debentures	25,773	25,773
Reported Value Measurement
Financial assets:
Cash and due from banks	48,841	55,534
Interest earning deposits with financial institutions	49,253	44,611
Securities available-for-sale	1,168,797	1,192,829
FHLBC and FRBC Stock	28,518	33,355
Loans held for sale	1,072	1,322
Net loans	3,925,298	3,998,689
Mortgage servicing rights	10,564	10,344
Interest rate swap agreements	5,947	5,302
Interest rate lock commitments and forward contracts	49	(10)
Interest receivable on securities and loans	25,735	27,159
Financial liabilities:
Noninterest bearing deposits	1,799,927	1,834,891
Interest bearing deposits	2,808,348	2,735,855
Securities sold under repurchase agreements	33,546	26,470
Other short-term borrowings	220,000
Junior subordinated debentures	25,773	405,000
Subordinated debentures	59,403	25,773
Senior notes		59,382
Interest rate swap agreements	8,917	8,234
Interest payable on deposits and borrowings	3,617	2,962
Estimate of Fair Value Measurement
Financial assets:
Cash and due from banks	48,841	55,534
Interest earning deposits with financial institutions	49,253	44,611
Securities available-for-sale	1,168,797	1,192,829
FHLBC and FRBC Stock	28,518	33,355
Loans held for sale	1,072	1,322
Net loans	3,841,563	3,876,381
Mortgage servicing rights	10,564	10,344
Interest rate swap agreements	5,947	5,302
Interest rate lock commitments and forward contracts	49	(10)
Interest receivable on securities and loans	25,735	27,159
Financial liabilities:
Noninterest bearing deposits	1,799,927	1,834,891
Interest bearing deposits	2,798,825	2,726,223
Securities sold under repurchase agreements	33,546	26,470
Other short-term borrowings	220,000
Junior subordinated debentures	20,619	405,000
Subordinated debentures	49,797	20,361
Senior notes		47,982
Interest rate swap agreements	8,917	8,324
Interest payable on deposits and borrowings	3,617	2,962
Fair Value, Inputs, Level 1
Financial assets:
Cash and due from banks	48,841	55,534
Interest earning deposits with financial institutions	49,253	44,611
Securities available-for-sale	171,000	169,574
Financial liabilities:
Noninterest bearing deposits	1,799,927	1,834,891
Fair Value, Inputs, Level 2
Financial assets:
Securities available-for-sale	982,409	1,007,926
FHLBC and FRBC Stock	28,518	33,355
Loans held for sale	1,072	1,322
Interest rate swap agreements	5,947	5,302
Interest rate lock commitments and forward contracts	49	(10)
Interest receivable on securities and loans	25,735	27,159
Financial liabilities:
Interest bearing deposits	2,798,825	2,726,223
Securities sold under repurchase agreements	33,546	26,470
Other short-term borrowings	220,000
Junior subordinated debentures	20,619	405,000
Subordinated debentures	49,797	20,361
Senior notes		47,982
Interest rate swap agreements	8,917	8,324
Interest payable on deposits and borrowings	3,617	2,962
Fair Value, Inputs, Level 3
Financial assets:
Securities available-for-sale	15,388	15,329
Net loans	3,841,563	3,876,381
Mortgage servicing rights	$ 10,564	$ 10,344

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Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk - Fair Value of Derivatives (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($) item	Mar. 31, 2023 USD ($)
Two financial institutions
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Cash collateral pledged with financial institutions, dollars	$ 6,600,000	$ 7,300,000
Number of financial institutions in which cash collateral pledged | item		2
Interest Rate Swap [Member]
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Cash collateral pledged with financial institutions, dollars	5,700,000		$ 4,100,000
Investment securities pledged with financial institutions, dollars	$ 0	$ 0
Number of financial institutions in which cash collateral pledged | item	1	1
Designated as Hedging Instrument
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative assets designated as hedging instruments, fair value	$ 3,361,000	$ 2,576,000
Derivative liabilities designated as hedging instruments, fair value	6,331,000	5,598,000
Designated as Hedging Instrument | Interest Rate Products | Cash flow hedges of certain variable rate commercial and commercial real estate loan pools
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	300,000,000.0	300,000,000.0
Designated as Hedging Instrument | Interest Rate Products | Cash flow hedge of junior subordinated debentures and was executed to pay fixed and receive variable rate cash flows
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	$ 25,800,000	$ 25,800,000
Designated as Hedging Instrument | Interest Rate Products | OSBC Affiliates
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	5	5
Notional amount	$ 325,774,000	$ 325,774,000
Derivative assets designated as hedging instruments, fair value	3,361,000
Derivative liabilities designated as hedging instruments, fair value	6,331,000	5,598,000
Designated as Hedging Instrument | Interest Rate Swap [Member] | OSBC Affiliates
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative assets designated as hedging instruments, fair value		2,576,000
Not Designated as Hedging Instrument
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative assets designated as hedging instruments, fair value	2,689,000
Derivative liabilities designated as hedging instruments, fair value	2,586,000
Not Designated as Hedging Instrument | Interest Rate Products
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	$ 107,000,000.0	$ 104,800,000
Not Designated as Hedging Instrument | Interest Rate Products | Commercial Loan Customers
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	16	17
Notional amount	$ 106,958,000	$ 104,777,000
Derivative assets designated as hedging instruments, fair value	2,586,000	2,726,000
Derivative liabilities designated as hedging instruments, fair value	2,586,000	2,726,000
Not Designated as Hedging Instrument | Commitments.
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Notional amount	$ 9,500,000	$ 8,400,000
Not Designated as Hedging Instrument | Interest Rate Lock Commitments and Forward Contracts.
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	38	4
Notional amount	$ 9,487,000	$ 44,790,000
Derivative assets designated as hedging instruments, fair value	$ 49,000	$ 89,000
Not Designated as Hedging Instrument | Interest Rate Lock Commitments and Forward Contracts. | Commercial Loan Customers
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item		24
Notional amount		$ 8,375,000
Derivative liabilities designated as hedging instruments, fair value		10,000
Not Designated as Hedging Instrument | Other Contracts
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Derivative, number of transactions | item	4
Notional amount	$ 46,687,000
Derivative assets designated as hedging instruments, fair value	54,000	2,805,000
Derivative liabilities designated as hedging instruments, fair value		$ 2,726,000
Interest Income
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Amount to be reclassified as an decrease to interest expense during the next twelve months	5,500,000
Interest Expense
Financial Instruments with Off-Balance Sheet Risk and Derivative Transactions
Amount to be reclassified as an decrease to interest expense during the next twelve months	$ 609,000

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Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk - Effect of Fair Value (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk
Amount of loss recognized in OCI on derivative	$ 2.1	$ 3.1
Amount of Gain or (Loss) Recognized in Income on Derivative	$ 1.6	$ 1.0

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Derivatives, Hedging Activities and Financial Instruments with Off-Balance Sheet Risk - Commitments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Company's contractual commitments due to letters of credit
Total letters of credit	$ 30,478,000	$ 31,112,000
Allowance for credit loss on unfunded commitments	2,700,000
Decrease In allowance for credit loss on unfunded commitments	44,000
Fixed [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	791,000	735,000
Variable [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	29,687,000	30,377,000
Commitments to Extend Credit to Borrowers [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	30,411,000	31,045,000
Commitments to Extend Credit to Borrowers [Member] | Fixed [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	791,000	735,000
Commitments to Extend Credit to Borrowers [Member] | Variable [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	29,620,000	30,310,000
Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	17,505,000	16,794,000
Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit [Member] | Fixed [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	229,000	173,000
Commitments to Extend Credit to Borrowers [Member] | Financial Standby Letter of Credit [Member] | Variable [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	17,276,000	16,621,000
Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	12,906,000	14,251,000
Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee [Member] | Fixed [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	562,000	562,000
Commitments to Extend Credit to Borrowers [Member] | Performance Guarantee [Member] | Variable [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	12,344,000	13,689,000
Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	67,000	67,000
Commitments to Extend Credit Nonborrowers [Member] | Performance Guarantee [Member] | Variable [Member]
Company's contractual commitments due to letters of credit
Total letters of credit	67,000	67,000
Unused lines of Credit [Member]
Company's contractual commitments due to letters of credit
Loan commitments	778,313,000	835,265,000
Unused lines of Credit [Member] | Fixed [Member]
Company's contractual commitments due to letters of credit
Loan commitments	148,769,000	140,305,000
Unused lines of Credit [Member] | Variable [Member]
Company's contractual commitments due to letters of credit
Loan commitments	$ 629,544,000	$ 694,960,000

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 21,312	$ 23,607

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false