8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

April 18, 2024

Date of Report (date of earliest event reported)

S&T BANCORP, INC

(Exact name of registrant as specified in its charter)

Pennsylvania	0-12508		25-1434426
(State or other jurisdiction of incorporation or organization)	(Commission File Number)		(I.R.S. Employer Identification No.)
800 Philadelphia Street	Indiana	PA	15701
(Address of Principal Executive Offices)			(Zip Code)

(800) 325-2265

Registrant's telephone number, including area code

(Not applicable)

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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, $2.50 par value	STBA	NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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. ☐

Item 2.02 Results of Operations and Financial Condition.

On April 18, 2024 S&T Bancorp Inc. (S&T) announced by press release its earnings for the three months ended March 31, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference in this Item 2.02. The information contained in this Item 2.02 of this Report on Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Exchange Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 7.01 Regulation FD Disclosure.

In connection with the issuance of its earnings for the three months ended March 31, 2024, S&T has also made available on its website materials that contain supplemental information about S&T’s financial results (“Supplemental Information”). A copy of the supplemental information is attached hereto as Exhibit 99.2 and is incorporated by reference in this Item 7.01. The information contained in this Item 7.01 of this Report on Form 8-K, including Exhibit 99.2, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Exchange Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description of Exhibit
99.1	Press Release
99.2	Supplemental Information
104	Cover Page Interactive Data File (embedded in the cover page formatted in Inline XBRL)

SIGNATURES

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

	S&T Bancorp, Inc.
	/s/ Mark Kochvar
April 18, 2024	Mark Kochvar Senior Executive Vice President, Chief Financial Officer

EX-99.1

INVESTOR CONTACT: Mark Kochvar S&T Bancorp, Inc. Chief Financial Officer 724.465.4826 mark.kochvar@stbank.com

FOR IMMEDIATE RELEASE

S&T Bancorp Inc. Announces First Quarter 2024 Results

INDIANA, Pa., - April 18, 2024 – S&T Bancorp Inc. (S&T) (NASDAQ: STBA), the holding company for S&T Bank, announced net income of $31.2 million, or $0.81 per diluted share, for the first quarter of 2024 compared to net income of $37.0 million, or $0.96 per diluted share, for the fourth quarter of 2023 and net income of $39.8 million, or $1.02 per diluted share, for the first quarter of 2023.

First Quarter of 2024 Highlights:

•Solid return metrics with return on average assets (ROA) of 1.32%, return on average equity (ROE) of 9.74% and return on average tangible equity (ROTE) (non-GAAP) of 13.85% compared to ROA of 1.55%, ROE of 11.79% and ROTE (non-GAAP) of 17.00% for the fourth quarter of 2023.

•Pre-provision net revenue to average assets (PPNR) (non-GAAP) was 1.76% compared to 1.97% for the fourth quarter of 2023.

•Net interest margin (NIM) (FTE) (non-GAAP) remains strong at 3.84% compared to 3.92% in the fourth quarter of 2023.

•Total deposits increased $78.6 million to $7.6 billion at March 31, 2024 compared to $7.5 billion at December 31, 2023, representing the third consecutive quarter of deposit growth.

•Nonperforming assets remain low at $33.3 million, or 0.44% of total loans plus other real estate owned, or OREO, compared to $23.0 million, or 0.30% of total loans plus OREO, at December 31, 2023.

“I am very pleased that we had a solid start to the year with excellent return metrics,” said Chief Executive Officer Chris McComish. “Our team continues to execute on strategies that have driven our strong results and deposit growth. The deep customer relationships built by our dedicated teams are at the core of our success. And for a second year in a row, we were named to the 2024 Forbes list of America’s Best Midsize Employers, based on survey feedback from our highly engaged employees. I am confident that our people-forward approach will continue to show positive results.”

Net Interest Income

Net interest income was $83.5 million for the first quarter of 2024 compared to $85.1 million for the fourth quarter of 2023. The decrease of $1.6 million in net interest income was driven by higher funding costs, partially offset by higher yields on interest-earning assets. Net interest margin on a fully taxable equivalent basis (NIM) (FTE) (non-GAAP) remains strong at 3.84% compared to 3.92% in the prior quarter. The yield on total average loans increased 6 basis points to 6.25% compared to 6.19% in the fourth quarter of 2023. Average loan balances increased $103.4 million to $7.7 billion compared to $7.6 billion in the fourth quarter of 2023. Total interest-bearing deposit costs increased 24 basis points to 2.77% compared to 2.53% in the fourth quarter of 2023. Higher interest-bearing deposit costs primarily related to

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S&T Earnings Release - 2

growth in higher costing deposit products combined with a continued shift in the mix of deposits. Average money market balances increased $76.7 million and average CD balances increased $105.8 million compared to the fourth quarter of 2023. Average borrowings decreased $26.9 million to $496.9 million compared to $523.8 million in the fourth quarter of 2023 due to higher average deposit balances.

Asset Quality

The allowance for credit losses was $104.8 million, or 1.37% of total portfolio loans, as of March 31, 2024, compared to $108.0 million, or 1.41%, at December 31, 2023. The provision for credit losses was $2.6 million for the first quarter of 2024 compared to $0.9 million in the fourth quarter of 2023. The increase in the provision for credit losses primarily related to higher net charge-offs offset by a lower level of required reserve compared to the fourth quarter of 2023. Net loan charge-offs were $6.6 million for the first quarter of 2024 compared to net loan charge-offs of $3.6 million in the fourth quarter of 2023. Nonperforming assets to total loans plus OREO remained low at 0.44% as of March 31, 2024 compared to 0.30% at December 31, 2023.

Noninterest Income and Expense

Noninterest income decreased $5.3 million to $12.8 million in the first quarter of 2024 compared to $18.1 million in the fourth quarter of 2023. The decrease is primarily due to a return to more normal levels of noninterest income in the first quarter of 2024 after experiencing unusual items in the fourth quarter of 2023 including a gain on OREO of $3.3 million and valuation adjustments on our commercial loan swaps of $0.3 million and on a nonqualified benefit plan of $0.8 million. Customer activity was also seasonally slower in the first quarter of 2024 resulting in lower debit card fees and service charges. Noninterest expense decreased $1.7 million to $54.5 million compared to $56.2 million in the fourth quarter of 2023. The decrease was primarily due to lower salaries and employee benefits of $1.4 million mainly related to a decrease in medical expense compared to the fourth quarter of 2023.

Financial Condition

Total assets were $9.5 billion at March 31, 2024 compared to $9.6 billion at December 31, 2023. Total portfolio loans remained unchanged at $7.7 billion compared to December 31, 2023. The consumer loan portfolio increased $40.8 million with growth in residential mortgages of $39.4 million compared to December 31, 2023. The commercial loan portfolio decreased $38.1 million primarily due to a decline in commercial and industrial of $45.0 million compared to December 31, 2023. Total deposits increased $78.6 million , or 4.2% annualized, compared to December 31, 2023. CDs increased $162.8 million compared to December 31, 2023 due to the replacement of $101.0 million of brokered money market funds with a like amount of brokered CDs and customers shifting from other deposit types. Total borrowings decreased $130.1 million to $373.5 million compared to $503.6 million at December 31, 2023 primarily related to deposit growth.

S&T continues to maintain a strong regulatory capital position with all capital ratios above the well-capitalized thresholds of federal bank regulatory agencies.

Conference Call

S&T will host its first quarter 2024 earnings conference call live via webcast at 1:00 p.m. ET on Thursday, April 18, 2024. To access the webcast, go to S&T Bancorp Inc.’s investor Relations webpage stbancorp.com. After the live presentation, the webcast will be archived at stbancorp.com for 12 months.

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About S&T Bancorp Inc. and S&T Bank

S&T Bancorp Inc. is a $9.5 billion bank holding company that is headquartered in Indiana, Pennsylvania, and trades on the NASDAQ Global Select Market under the symbol STBA. Its principal subsidiary, S&T Bank, was established in 1902 and operates in Pennsylvania and Ohio. S&T Bank was named by Forbes as a 2023 Best-in-State Bank. For more information, visit stbancorp.com or stbank.com. Follow us on Facebook, Instagram and LinkedIn.

Forward-Looking Statements

This information contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to our financial condition, results of operations, plans, objectives, outlook for earnings, revenues, expenses, capital and liquidity levels and ratios, asset levels, asset quality, financial position and other matters regarding or affecting S&T and its future business and operations. Forward-looking statements are typically identified by words or phrases such as “will likely result,” “expect,” “anticipate,” “estimate,” “forecast,” “project,” “intend,” “believe,” “assume,” “strategy,” “trend,” “plan,” “outlook,” “outcome,” “continue,” “remain,” “potential,” “opportunity,” “comfortable,” “current,” “position,” “maintain,” “sustain,” “seek,” “achieve” and variations of such words and similar expressions, or future or conditional verbs such as will, would, should, could or may. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The matters discussed in these forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors including, but not limited to: credit losses and the credit risk of our commercial and consumer loan products; changes in the level of charge-offs and changes in estimates of the adequacy of the allowance for credit losses, or ACL; cyber-security concerns; rapid technological developments and changes; operational risks or risk management failures by us or critical third parties, including fraud risk; our ability to manage our reputational risks; sensitivity to the interest rate environment, a rapid increase in interest rates or a change in the shape of the yield curve; a change in spreads on interest-earning assets and interest-bearing liabilities; any remaining uncertainties with the transition from LIBOR as a reference rate; regulatory supervision and oversight, including changes in regulatory capital requirements and our ability to address those requirements; unanticipated changes in our liquidity position; unanticipated changes in regulatory and governmental policies impacting interest rates and financial markets; changes in accounting policies, practices or guidance; legislation affecting the financial services industry as a whole, and S&T, in particular; developments affecting the industry and the soundness of financial institutions and further disruption to the economy and U.S. banking system; the outcome of pending and future litigation and governmental proceedings; increasing price and product/service competition; the ability to continue to introduce competitive new products and services on a timely, cost-effective basis; managing our internal growth and acquisitions; the possibility that the anticipated benefits from acquisitions cannot be fully realized in a timely manner or at all, or that integrating the acquired operations will be more difficult, disruptive or costly than anticipated; containing costs and expenses; reliance on significant customer relationships; an interruption or cessation of an important service by a third-party provider; our ability to attract and retain talented executives and employees; general economic or business conditions, including the strength of regional economic conditions in our market area; ESG practices and disclosures, including climate change, hiring practices, the diversity of the work force, and racial and social justice issues; deterioration of the housing market and reduced demand for mortgages; deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its

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carrying value resulting in a non-cash charge to net income; the stability of our core deposit base and access to contingency funding; re-emergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities, and indirectly, by affecting the economy generally and access to capital in the amounts, at the times and on the terms required to support our future businesses and geopolitical tensions and conflicts between nations.

Many of these factors, as well as other factors, are described in our Annual Report on Form 10-K for the year ended December 31, 2023, including Part I, Item 1A-"Risk Factors" and any of our subsequent filings with the SEC. Forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. We caution you not to unduly rely on forward-looking statements because the assumptions, beliefs, expectations and projections about future events may, and often do, differ materially from actual results. Any forward-looking statement speaks only as to the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made.

Non-GAAP Financial Measures

In addition to traditional measures presented in accordance with GAAP, our management uses, and this information contains or references, certain non-GAAP financial measures, such as tangible book value, return on average tangible shareholder's equity, PPNR to average assets, efficiency ratio, tangible common equity to tangible assets and net interest margin on an FTE basis. We believe these non-GAAP financial measures provide information useful to investors in understanding our underlying operational performance and our business and performance trends as they facilitate comparisons with the performance of other companies in the financial services industry. Although we believe that these non-GAAP financial measures enhance investors’ understanding of our business and performance, these non-GAAP financial measures should not be considered alternatives to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor are they necessarily comparable with non-GAAP measures which may be presented by other companies. See Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures for more information related to these financial measures.

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 5

	2024		2023		2023
	First		Fourth		First
(dollars in thousands, except per share data)	Quarter		Quarter		Quarter
INTEREST AND DIVIDEND INCOME
Loans, including fees	$118,577		$117,443		$102,724
Investment Securities:
Taxable	8,595		8,491		7,457
Tax-exempt	193		210		214
Dividends	389		562		508
Total Interest and Dividend Income	127,754		126,706		110,903
INTEREST EXPENSE
Deposits	36,662		32,921		14,903
Borrowings, junior subordinated debt securities and other	7,615		8,676		7,209
Total Interest Expense	44,277		41,597		22,112
NET INTEREST INCOME	83,477		85,109		88,791
Provision for credit losses	2,627		943		922
Net Interest Income After Provision for Credit Losses	80,850		84,166		87,869
NONINTEREST INCOME
Net gain on sale of securities	3		—		—
Debit and credit card	4,235		4,540		4,373
Service charges on deposit accounts	3,828		4,129		4,076
Wealth management	3,042		3,050		2,948
Mortgage banking	277		280		301
Other	1,445		6,062		1,492
Total Noninterest Income	12,830		18,061		13,190
NONINTEREST EXPENSE
Salaries and employee benefits	29,512		30,949		27,601
Data processing and information technology	4,954		4,523		4,258
Occupancy	3,870		3,598		3,835
Furniture, equipment and software	3,472		3,734		2,861
Marketing	1,943		1,435		1,853
Other taxes	1,871		1,870		1,790
Professional services and legal	1,720		1,968		1,821
FDIC insurance	1,049		1,049		1,012
Other noninterest expense	6,129		7,077		6,668
Total Noninterest Expense	54,520		56,203		51,699
Income Before Taxes	39,160		46,024		49,360
Income tax expense	7,921		8,977		9,561
Net Income	$31,239		$37,047		$39,799
Per Share Data
Shares outstanding at end of period	38,233,280		38,232,806		38,998,156
Average shares outstanding - diluted	38,418,085		38,379,493		39,032,062
Diluted earnings per share	$0.81		$0.96		$1.02
Dividends declared per share	$0.33		$0.33		$0.32
Dividend yield (annualized)	4.11	%	3.95	%	4.07	%
Dividends paid to net income	40.39	%	34.04	%	31.10	%
Book value	$33.87		$33.57		$31.48
Tangible book value (1)	$24.03		$23.72		$21.81
Market value	$32.08		$33.42		$31.45
Profitability Ratios (Annualized)
Return on average assets	1.32	%	1.55	%	1.77	%
Return on average shareholders' equity	9.74	%	11.79	%	13.38	%
Return on average tangible shareholders' equity(2)	13.85	%	17.00	%	19.61	%
Pre-provision net revenue / average assets(3)	1.76	%	1.97	%	2.23	%
Efficiency ratio (FTE)(4)	56.21	%	54.12	%	50.42	%

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 6

	2024		2023		2023
	First		Fourth		First
(dollars in thousands)	Quarter		Quarter		Quarter
ASSETS
Cash and due from banks	$207,462		$233,612		$244,152
Securities available for sale, at fair value	970,728		970,391		998,708
Loans held for sale	—		153		81
Commercial loans:
Commercial real estate	3,367,722		3,357,603		3,145,079
Commercial and industrial	1,597,119		1,642,106		1,709,612
Commercial construction	360,086		363,284		393,658
Total Commercial Loans	5,324,927		5,362,993		5,248,349
Consumer loans:
Residential mortgage	1,500,499		1,461,097		1,189,220
Home equity	645,780		650,666		649,590
Installment and other consumer	108,232		114,897		119,843
Consumer construction	76,596		63,688		44,062
Total Consumer Loans	2,331,107		2,290,348		2,002,715
Total Portfolio Loans	7,656,034		7,653,341		7,251,064
Allowance for credit losses	(104,802)		(107,966)		(108,113)
Total Portfolio Loans, Net	7,551,232		7,545,375		7,142,951
Federal Home Loan Bank and other restricted stock, at cost	13,703		25,082		30,262
Goodwill	373,424		373,424		373,424
Other assets	422,554		403,489		403,864
Total Assets	$9,539,103		$9,551,526		$9,193,442
LIABILITIES
Deposits:
Noninterest-bearing demand	$2,188,927		$2,221,942		$2,468,638
Interest-bearing demand	848,729		825,787		841,130
Money market	1,882,157		1,941,842		1,599,814
Savings	936,056		950,546		1,068,274
Certificates of deposit	1,744,478		1,581,652		1,175,238
Total Deposits	7,600,347		7,521,769		7,153,094
Borrowings:
Short-term borrowings	285,000		415,000		495,000
Long-term borrowings	39,156		39,277		14,628
Junior subordinated debt securities	49,373		49,358		54,468
Total Borrowings	373,529		503,635		564,096
Other liabilities	270,153		242,677		248,457
Total Liabilities	8,244,029		8,268,081		7,965,647
SHAREHOLDERS’ EQUITY
Total Shareholders’ Equity	1,295,074		1,283,445		1,227,795
Total Liabilities and Shareholders’ Equity	$9,539,103		$9,551,526		$9,193,442
Capitalization Ratios
Shareholders' equity / assets	13.58	%	13.44	%	13.36	%
Tangible common equity / tangible assets(5)	10.03	%	9.88	%	9.65	%
Tier 1 leverage ratio	11.30	%	11.21	%	11.15	%
Common equity tier 1 capital	13.59	%	13.37	%	13.10	%
Risk-based capital - tier 1	13.91	%	13.69	%	13.50	%
Risk-based capital - total	15.49	%	15.27	%	15.09	%

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 7

	2024		2023		2023
	First		Fourth		First
(dollars in thousands)	Quarter		Quarter		Quarter
Net Interest Margin (FTE) (QTD Averages)
ASSETS
Interest-bearing deposits with banks	$144,637	5.75%	$149,985	5.92%	$140,499	4.22%
Securities, at fair value	966,703	2.81%	956,107	2.75%	1,000,609	2.51%
Loans held for sale	176	7.12%	57	7.25%	126	6.39%
Commercial real estate	3,365,142	5.92%	3,312,509	5.86%	3,132,382	5.45%
Commercial and industrial	1,626,633	7.36%	1,621,091	7.29%	1,711,113	6.76%
Commercial construction	365,088	7.70%	381,294	7.55%	388,795	7.23%
Total Commercial Loans	5,356,863	6.48%	5,314,894	6.42%	5,232,290	6.01%
Residential mortgage	1,478,609	4.93%	1,417,891	4.81%	1,144,821	4.43%
Home equity	648,265	6.99%	650,721	6.94%	650,385	6.28%
Installment and other consumer	110,899	8.64%	114,720	9.15%	122,873	7.80%
Consumer construction	69,676	5.60%	62,850	5.22%	45,870	4.67%
Total Consumer Loans	2,307,449	5.71%	2,246,182	5.66%	1,963,949	5.26%
Total Portfolio Loans	7,664,312	6.25%	7,561,076	6.19%	7,196,239	5.81%
Total Loans	7,664,488	6.25%	7,561,133	6.19%	7,196,365	5.81%
Total other earning assets	25,335	7.12%	37,502	7.23%	34,720	6.71%
Total Interest-earning Assets	8,801,163	5.86%	8,704,727	5.81%	8,372,193	5.39%
Noninterest-earning assets	737,742		768,942		754,677
Total Assets	$9,538,905		$9,473,669		$9,126,870
LIABILITIES AND SHAREHOLDERS' EQUITY
Interest-bearing demand	$829,095	1.12%	$836,771	1.03%	$824,623	0.33%
Money market	1,920,009	3.15%	1,843,338	2.98%	1,670,988	1.88%
Savings	939,467	0.63%	957,903	0.57%	1,090,137	0.30%
Certificates of deposit	1,639,059	4.37%	1,533,266	4.02%	1,052,460	2.19%
Total Interest-bearing Deposits	5,327,630	2.77%	5,171,278	2.53%	4,638,208	1.30%
Short-term borrowings	408,351	5.37%	435,060	5.75%	451,668	4.93%
Long-term borrowings	39,221	4.53%	39,341	4.53%	14,689	2.71%
Junior subordinated debt securities	49,364	8.23%	49,350	8.25%	54,458	7.50%
Total Borrowings	496,936	5.59%	523,751	5.90%	520,815	5.13%
Total Other Interest-bearing Liabilities	52,239	5.42%	65,547	5.40%	54,669	4.58%
Total Interest-bearing Liabilities	5,876,805	3.03%	5,760,576	2.86%	5,213,692	1.72%
Noninterest-bearing liabilities	2,371,586		2,466,063		2,706,820
Shareholders' equity	1,290,514		1,247,030		1,206,358
Total Liabilities and Shareholders' Equity	$9,538,905		$9,473,669		$9,126,870
Net Interest Margin(6)		3.84%		3.92%		4.32%

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 8

	2024		2023		2023
	First		Fourth		First
(dollars in thousands)	Quarter		Quarter		Quarter
Nonaccrual Loans
Commercial loans:		% Loans		% Loans		% Loans
Commercial real estate	$18,082	0.54%	$7,267	0.22%	$7,931	0.25%
Commercial and industrial	3,092	0.19%	3,244	0.20%	9,348	0.55%
Commercial construction	4,960	1.38%	4,960	1.37%	384	0.10%
Total Nonaccrual Commercial Loans	26,134	0.49%	15,471	0.29%	17,663	0.34%
Consumer loans:
Residential mortgage	4,160	0.28%	4,579	0.31%	4,749	0.40%
Home equity	2,709	0.42%	2,567	0.39%	1,915	0.29%
Installment and other consumer	206	0.19%	330	0.29%	317	0.26%
Total Nonaccrual Consumer Loans	7,075	0.30%	7,476	0.33%	6,981	0.35%
Total Nonaccrual Loans	$33,209	0.43%	$22,947	0.30%	$24,644	0.34%

	2024	2023	2023
	First	Fourth	First
(dollars in thousands)	Quarter	Quarter	Quarter
Loan Charge-offs (Recoveries)
Charge-offs	$6,939	$3,880	$4,459
Recoveries	(350)	(260)	(9,574)
Net Loan Charge-offs (Recoveries)	$6,589	$3,620	($5,115)
Net Loan Charge-offs (Recoveries)
Commercial loans:
Customer fraud	$—	$—	($9,329)
Commercial real estate	$5,238	$1,690	($25)
Commercial and industrial	950	949	3,948
Commercial construction	—	451	(2)
Total Commercial Loan Charge-offs (Recoveries)	6,188	3,090	(5,408)
Consumer loans:
Residential mortgage	7	(3)	9
Home equity	105	148	31
Installment and other consumer	289	385	253
Total Consumer Loan Charge-offs	401	530	293
Total Net Loan Charge-offs (Recoveries)	$6,589	$3,620	($5,115)

	2024		2023		2023
	First		Fourth		First
(dollars in thousands)	Quarter		Quarter		Quarter
Asset Quality Data
Nonaccrual loans	$33,209		$22,947		$24,644
OREO	140		75		3,076
Total nonperforming assets	33,349		23,022		27,720
Nonaccrual loans / total loans	0.43	%	0.30	%	0.34	%
Nonperforming assets / total loans plus OREO	0.44	%	0.30	%	0.38	%
Allowance for credit losses / total portfolio loans	1.37	%	1.41	%	1.49	%
Allowance for credit losses / nonaccrual loans	316	%	471	%	439	%
Net loan charge-offs (recoveries)	$6,589		$3,620		($5,115)
Net loan charge-offs (recoveries) (annualized) / average loans	0.35	%	0.19	%	(0.29	%)

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 9

Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures:

	2024		2023		2023
	First		Fourth		First
(dollars and shares in thousands)	Quarter		Quarter		Quarter
(1) Tangible Book Value (non-GAAP)
Total shareholders' equity	$1,295,074		$1,283,445		$1,227,795
Less: goodwill and other intangible assets, net of deferred tax liability	(376,396)		(376,631)		(377,405)
Tangible common equity (non-GAAP)	$918,678		$906,814		$850,390
Common shares outstanding	38,233		38,233		38,998
Tangible book value (non-GAAP)	$24.03		$23.72		$21.81
Tangible book value is a preferred industry metric used to measure our company's value and commonly used by investors and analysts.
(2) Return on Average Tangible Shareholders' Equity (non-GAAP)
Net income (annualized)	$125,643		$146,980		$161,407
Plus: amortization of intangibles (annualized), net of tax	944		1,003		1,085
Net income before amortization of intangibles (annualized)	$126,587		$147,983		$162,492
Average total shareholders' equity	$1,290,514		$1,247,030		$1,206,358
Less: average goodwill and other intangible assets, net of deferred tax liability	(376,518)		(376,761)		(377,576)
Average tangible equity (non-GAAP)	$913,996		$870,269		$828,782
Return on average tangible shareholders' equity (non-GAAP)	13.85	%	17.00	%	19.61	%
Return on average tangible shareholders' equity is a key profitability metric used by management to measure financial performance.
(3) Pre-provision Net Revenue / Average Assets (non-GAAP)
Income before taxes	$39,160		$46,024		$49,360
Plus: Provision for credit losses	2,627		943		922
Total	$41,787		$46,967		$50,282
Total (annualized) (non-GAAP)	$168,066		$186,336		$203,921
Average assets	$9,538,905		$9,473,669		$9,126,870
Pre-provision Net Revenue / Average Assets (non-GAAP)	1.76	%	1.97	%	2.23	%
Pre-provision net revenue to average assets is income before taxes adjusted to exclude provision for credit losses. We believe this to be a preferred industry measurement to help evaluate our ability to fund credit losses or build capital.
(4) Efficiency Ratio (non-GAAP)
Noninterest expense	$54,520		$56,203		$51,699
Net interest income per consolidated statements of net income	$83,477		$85,109		$88,791
Plus: taxable equivalent adjustment	692		683		555
Net interest income (FTE) (non-GAAP)	84,169		85,792		89,346
Noninterest income	12,830		18,061		13,190
Less: net gains on sale of securities	(3)		—		—
Net interest income (FTE) (non-GAAP) plus noninterest income	$96,996		$103,853		$102,536
Efficiency ratio (non-GAAP)	56.21	%	54.12	%	50.42	%
The efficiency ratio is noninterest expense divided by noninterest income plus net interest income, on an FTE basis (non-GAAP), which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice.

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S&T Bancorp, Inc.
Consolidated Selected Financial Data
Unaudited S&T Earnings Release - 10

Definitions and Reconciliation of GAAP to Non-GAAP Financial Measures:

	2024		2023		2023
	First		Fourth		First
(dollars in thousands)	Quarter		Quarter		Quarter
(5) Tangible Common Equity / Tangible Assets (non-GAAP)
Total shareholders' equity	$1,295,074		$1,283,445		$1,227,795
Less: goodwill and other intangible assets, net of deferred tax liability	(376,396)		(376,631)		(377,405)
Tangible common equity (non-GAAP)	$918,678		$906,814		$850,390
Total assets	$9,539,103		$9,551,526		$9,193,442
Less: goodwill and other intangible assets, net of deferred tax liability	(376,396)		(376,631)		(377,405)
Tangible assets (non-GAAP)	$9,162,707		$9,174,895		$8,816,037
Tangible common equity to tangible assets (non-GAAP)	10.03	%	9.88	%	9.65	%
Tangible common equity to tangible assets is a preferred industry measurement to evaluate capital adequacy.
(6) Net Interest Margin Rate (FTE) (non-GAAP)
Interest income and dividend income	$127,754		$126,706		$110,903
Less: interest expense	(44,277)		(41,597)		(22,112)
Net interest income per consolidated statements of net income	83,477		85,109		88,791
Plus: taxable equivalent adjustment	692		683		555
Net interest income (FTE) (non-GAAP)	$84,169		$85,792		$89,346
Net interest income (FTE) (annualized)	$338,526		$340,370		$362,348
Average interest-earning assets	$8,801,163		$8,704,727		$8,372,193
Net interest margin (FTE) (non-GAAP)	3.84	%	3.92	%	4.32	%
The interest income on interest-earning assets, net interest income and net interest margin are presented on an FTE basis (non-GAAP). The FTE basis (non-GAAP) adjusts for the tax benefit of income on certain tax-exempt loans and securities and the dividend-received deduction for equity securities using the federal statutory tax rate of 21 percent for each period. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable sources of interest income.

###

EX-99.2

First Quarter 2024 Earnings Supplement

Forward Looking Statements and Risk Factors This information contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to our financial condition, results of operations, plans, objectives, outlook for earnings, revenues, expenses, capital and liquidity levels and ratios, asset levels, asset quality, financial position and other matters regarding or affecting S&T and its future business and operations. Forward-looking statements are typically identified by words or phrases such as “will likely result,” “expect,” “anticipate,” “estimate,” “forecast,” “project,” “intend,” “believe,” “assume,” “strategy,” “trend,” “plan,” “outlook,” “outcome,” “continue,” “remain,” “potential,” “opportunity,” “comfortable,” “current,” “position,” “maintain,” “sustain,” “seek,” “achieve” and variations of such words and similar expressions, or future or conditional verbs such as will, would, should, could or may. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The matters discussed in these forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors including, but not limited to: credit losses and the credit risk of our commercial and consumer loan products; changes in the level of charge-offs and changes in estimates of the adequacy of the allowance for credit losses, or ACL; cyber-security concerns; rapid technological developments and changes; operational risks or risk management failures by us or critical third parties, including fraud risk; our ability to manage our reputational risks; sensitivity to the interest rate environment, a rapid increase in interest rates or a change in the shape of the yield curve; a change in spreads on interest-earning assets and interest-bearing liabilities; any remaining uncertainties with the transition from LIBOR as a reference rate; regulatory supervision and oversight, including changes in regulatory capital requirements and our ability to address those requirements; unanticipated changes in our liquidity position; unanticipated changes in regulatory and governmental policies impacting interest rates and financial markets; changes in accounting policies, practices or guidance; legislation affecting the financial services industry as a whole, and S&T, in particular; developments affecting the industry and the soundness of financial institutions and further disruption to the economy and U.S. banking system; the outcome of pending and future litigation and governmental proceedings; increasing price and product/service competition; the ability to continue to introduce competitive new products and services on a timely, cost-effective basis; managing our internal growth and acquisitions; the possibility that the anticipated benefits from acquisitions cannot be fully realized in a timely manner or at all, or that integrating the acquired operations will be more difficult, disruptive or costly than anticipated; containing costs and expenses; reliance on significant customer relationships; an interruption or cessation of an important service by a third-party provider; our ability to attract and retain talented executives and employees; general economic or business conditions, including the strength of regional economic conditions in our market area; ESG practices and disclosures, including climate change, hiring practices, the diversity of the work force, and racial and social justice issues; deterioration of the housing market and reduced demand for mortgages; deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a non-cash charge to net income; the stability of our core deposit base and access to contingency funding; re-emergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities, and indirectly, by affecting the economy generally and access to capital in the amounts, at the times and on the terms required to support our future businesses and geopolitical tensions and conflicts between nations. Many of these factors, as well as other factors, are described in our Annual Report on Form 10-K for the year ended December 31, 2023, including Part I, Item 1A-"Risk Factors" and any of our subsequent filings with the SEC. Forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. We caution you not to unduly rely on forward-looking statements because the assumptions, beliefs, expectations and projections about future events may, and often do, differ materially from actual results. Any forward-looking statement speaks only as to the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made. Non-GAAP Financial Measures In addition to the traditional measures presented in accordance with Generally Accepted Accounting Principles (GAAP), S&T management uses and this presentation contains or references certain non-GAAP financial measures, such as net interest income on a fully taxable equivalent basis. S&T believes these non-GAAP financial measures provide information useful to investors in understanding our underlying business, operational performance and performance trends which facilitate comparisons with the performance of others in the financial services industry. Although S&T believes that these non-GAAP financial measures enhance investors’ understanding of S&T’s business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor are they necessarily comparable with non-GAAP measures which may be presented by other companies. The non-GAAP financial measures contained within this presentation should be read in conjunction with the audited financial statements and analysis as presented in the Annual Report on Form 10-K as well as the unaudited financial statements and analyses as presented in the respective Quarterly Reports in Exhibit 99.1 of Form 8-K for S&T Bancorp, Inc. and subsidiaries. 2

3 First Quarter Overview RETURN METRICS EARNINGS Net Income $31.2 million *Refer to appendix for reconciliation of non-GAAP financial measures EPS $0.81 ROA 1.32% ROE 9.74% ROTE* 13.85% PPNR* 1.76% HIGHLIGHTS • Solid earnings and return metrics • NIM remains strong at 3.84% • Third consecutive quarter of customer deposit growth • Healthy ACL level with manageable NPAs • Forbes 2024 America’s Best Banks • Forbes 2024 list of America's Best Midsize Employers ACL 1.37% NCO 0.35% ASSET QUALITY NPA 0.44% NIM* 3.84% BALANCE SHEET Loan growth $2.7 million 0.14% (annualized) Deposit growth $78.6 million 4.21% (annualized) Efficiency Ratio* 56.21%

Balance Sheet • Shift to higher costing deposits is moderating • Wholesale borrowings are down $130 million primarily due to deposit growth • No change in brokered deposits, shift from money market to CDs at similar cost Dollars in millions 4 1Q24 4Q23 Var $207 $234 ($27) 971 970 1 7,656 7,653 3 7,600 7,522 78 374 504 (130) Cash & Int Bear Bal Securities Loans Deposits Borrowings ($150) ($100) ($50) $0 $50 $100 1Q24 vs 4Q23: 1Q24 vs 4Q23 DEPOSIT CHANGES DECREASES/INCREASES Brokered Brokered

Asset Quality ACL Trend: Dollars in millions 5 ASSET QUALITY TRENDS • ACL down 4 basis points to 1.37% compared to 1.41% at December 31, 2023 • Net charge-offs of $6.6 million, or 0.35% of average loans (annualized) • Increase in NPAs related to a strategic exit of an operating company that resulted in a $3.2 million charge-off

Office CRE Dollars in millions 6 CBD 15% $72 OFFICE LOANS BY SIZE: Size Total # Loans Avg Size Avg LTV 10mm+ $47.3 4 $11.8 53 % 5mm-10mm 172.1 25 6.9 54 % 1mm-5mm 176.1 79 2.2 59 % Under 1mm 86.5 338 0.3 48 % Total $482.0 446 $1.1 55 % OFFICE LOAN MATURITIES BY YEAR: Avg LTV: 52% 56% 50% 55% 49% OFFICE CRE BY MSA: Pittsburgh 37% Philadelphia 18% Columbus 7% Buffalo 6% Harrisburg 5% Other 27% • Office represents 6% of total loans • Granular portfolio with average loan size of $1.1 million • 95% of our office portfolio is in-market (PA and contiguous states) • 90% non-central business district (CBD) • Criticized of $12.3 million and classified of $2.1 million; only $0.5 million of NPLs

Multifamily - CRE Dollars in millions 7 MULTIFAMILY LOANS BY SIZE: Size Total # Loans Avg Size Avg LTV 10mm+ $124.6 9 $13.8 64 % 5mm-10mm 153.8 21 7.3 52 % 1mm-5mm 163.8 80 2.0 53 % Under 1mm 138.6 485 0.3 58 % Total $580.8 595 $1.0 56 % MULTIFAMILY LOAN MATURITIES BY YEAR: Avg LTV: 42% 49% 49% 50% 57% Pittsburgh 39% Philadelphia 16% Columbus 8% Lancaster 6% Akron 4% Other 27% MULTIFAMILY CRE BY MSA: • Multifamily represents 8% of total loans • Granular portfolio with average loan size of $1.0 million • 95% of our multifamily portfolio is in- market (PA and contiguous states) • Criticized loans of $0 and classified of $6.9 million; no NPLs Additional exposure of $214.6 million of construction commitments

• NIM was solid at 3.84% and remains well above pre-rate cycle level • NIM compression is moderating with the smallest decrease since 1Q23 • Cost of funds increases are declining as deposit mix shift moderates and higher cost borrowings are reduced Net Interest Income Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures 8 CURRENT RATE CYCLE Total Cost of Funds

1Q24 1Q24 vs 4Q23 1Q24 vs 1Q23 Debit and Credit Card $4.2 ($0.3) ($0.1) Service Charges 3.8 (0.3) (0.3) Wealth 3.0 — — Mortgage 0.3 — — Other 1.5 (4.6) — Noninterest Income $12.8 ($5.2) ($0.4) Noninterest Income 9Dollars in millions • Noninterest income levels normalize • Decrease in other related to a $3.3 million gain on OREO and $1.1 million of valuation adjustments in 4Q23 • Customer activity seasonally slower

1Q24 1Q24 vs 4Q23 1Q24 vs 1Q23 Salaries & Benefits $29.5 ($1.4) $1.9 Data Processing 5.0 0.4 0.7 Occupancy 3.9 0.3 — FF&E 3.5 (0.3) 0.6 Other Taxes 1.9 — 0.1 Marketing 1.9 0.5 0.1 Professional Services 1.7 (0.3) (0.1) FDIC 1.0 — — Other 6.1 (0.9) (0.6) Noninterest Expense $54.5 ($1.7) $2.8 Noninterest Expense 10Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures • Salaries and benefits decreased $1.4 million mainly related to medical expense compared to 4Q23

Capital Dollars in millions; *Refer to appendix for reconciliation of non-GAAP financial measures 11 TCE / TA* • We have strong capital levels and are well positioned for growth • TCE / TA improvement due to strong earnings

1Q24 Return on Average Tangible Shareholders' Equity (ROTE) (non-GAAP) Net income (annualized) $125,643 Plus: amortization of intangibles (annualized), net of tax 944 Net income before amortization of intangibles (annualized) $126,587 Average total shareholders' equity $1,290,514 Less: average goodwill and other intangible assets, net of deferred tax liability (376,518) Average tangible equity (non-GAAP) $913,996 Return on average tangible shareholders' equity (non-GAAP) 13.85 % Return on average tangible shareholders' equity is a key profitability metric used by management to measure financial performance. Pre-provision Net Revenue (PPNR)/Average Assets (non-GAAP) Income before taxes $39,160 Plus: Provision for credit losses 2,627 Total $41,787 Total (annualized) (non-GAAP) $168,066 Average assets $9,538,905 PPNR/Average Assets (non-GAAP) 1.76 % Pre-provision net revenue to average assets is income before taxes adjusted to exclude provision for credit losses. We believe this to be a preferred industry measurement to help evaluate our ability to fund credit losses or build capital. Appendix Definitions of GAAP to Non-GAAP Financial Measures 12

1Q24 4Q23 3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 Tangible Common Equity (TCE)/Tangible Assets (non-GAAP) Total shareholders' equity $1,295,074 $1,283,445 $1,223,532 $1,212,853 $1,227,795 Less: goodwill and other intangible assets, net of deferred tax liability (376,396) (376,631) (376,883) (377,144) (377,405) Tangible common equity (non-GAAP) $918,678 $906,814 $846,649 $835,709 $850,390 Total assets $9,539,103 $9,551,526 $9,466,077 $9,252,922 $9,193,442 Less: goodwill and other intangible assets, net of deferred tax liability (376,396) (376,631) (376,883) (377,144) (377,405) Tangible assets (non-GAAP) $9,162,707 $9,174,895 $9,089,194 $8,875,778 $8,816,037 Tangible common equity to tangible assets (non-GAAP) 10.03 % 9.88 % 9.31 % 9.42 % 9.65 % Tangible common equity to tangible assets is a preferred industry measurement to evaluate capital adequacy. Efficiency Ratio (non-GAAP) Noninterest expense $54,520 $56,203 $52,799 $49,633 $51,699 Net interest income $83,477 $85,109 $87,387 $88,123 $88,791 Plus: taxable equivalent adjustment 692 683 674 639 555 Net interest income (FTE) (non-GAAP) 84,169 85,792 88,061 88,762 89,346 Noninterest income 12,830 18,061 12,178 14,191 13,190 Less: net gains on sale of securities (3) — — — — Net interest income (FTE) (non-GAAP) plus noninterest income $96,996 $103,853 $100,239 $102,953 $102,536 Efficiency ratio (non-GAAP) 56.21 % 54.12 % 52.67 % 48.21 % 50.42 % The efficiency ratio is noninterest expense divided by noninterest income plus net interest income, on an FTE basis (non-GAAP), which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice. Net Interest Margin Rate (NIM) (FTE) (non-GAAP) Interest income and dividend income $127,754 $126,706 $122,959 $117,333 $110,903 $103,208 $89,835 $77,599 $70,109 $71,135 Less: interest expense (44,277) (41,597) (35,572) (29,210) (22,112) (14,150) (6,037) (2,405) (2,376) (2,697) Net interest income 83,477 85,109 87,387 88,123 88,791 89,058 83,798 75,194 67,733 68,438 Plus: taxable equivalent adjustment 692 683 674 639 555 532 521 506 493 510 Net interest income (FTE) (non-GAAP) $84,169 $85,792 $88,061 $88,762 $89,346 $89,590 $84,319 $75,700 $68,226 $68,948 Net interest income (FTE) (annualized) $338,526 $340,370 $349,373 $356,022 $362,348 $355,438 $334,526 $303,633 $276,694 $273,537 Average interest-earning assets $8,801,163 $8,704,727 $8,561,578 $8,436,490 $8,372,193 $8,220,689 $8,287,889 $8,535,384 $8,747,398 $8,768,329 Net interest margin (FTE) (non-GAAP) 3.84 % 3.92 % 4.09 % 4.22 % 4.32 % 4.33 % 4.04 % 3.56 % 3.16 % 3.12 % The interest income on interest-earning assets, net interest income and net interest margin are presented on an FTE basis (non-GAAP). The FTE basis (non-GAAP) adjusts for the tax benefit of income on certain tax-exempt loans and securities and the dividend-received deduction for equity securities using the federal statutory tax rate of 21 percent for each period. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable sources of interest income. Appendix Definitions of GAAP to Non-GAAP Financial Measures 13

First Quarter 2024 Earnings Supplement

XML

Cover	Apr. 18, 2024
Cover [Abstract]
Document Type	8-K
Document Period End Date	Apr. 18, 2024
Entity Registrant Name	S&T BANCORP, INC
Entity Incorporation, State or Country Code	PA
Entity File Number	0-12508
Entity Tax Identification Number	25-1434426
Entity Address, Address Line One	800 Philadelphia Street
Entity Address, City or Town	Indiana
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15701
City Area Code	800
Local Phone Number	325-2265
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common Stock, $2.50 par value
Trading Symbol	STBA
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false
Entity Central Index Key	0000719220
Amendment Flag	false