The following is a summary of our corporate and other debt (in millions):


	December 31,
	2023			2022
Senior Notes:
Semi-annual payments of interest, fixed rate of 2.40%, balloon due November 9, 2031	$	400.0		$	400.0
Semi-annual payments of interest, fixed rate of 5.50%, balloon due March 2, 2033		350.0			—
Semi-annual payments of interest, fixed rate of 3.50%, balloon due May 20, 2051		850.0			850.0
Semi-annual payments of interest, fixed rate of 3.05%, balloon due March 9, 2052		350.0			—
Semi-annual payments of interest, fixed rate of 5.75%, balloon due March 2, 2053		600.0			350.0
Semi-annual payments of interest, fixed rate of 6.50%, balloon due February 15, 2034		400.0			350.0
Semi-annual payments of interest, fixed rate of 6.75%, balloon due February 15, 2054		600.0			—
Total Senior Notes		3,550.0			1,950.0
Note Purchase Agreements:
Semi-annual payments of interest, fixed rate of 5.49%, balloon due February 10, 2023		—			50.0
Semi-annual payments of interest, fixed rate of 4.13%, balloon due June 24, 2023		—			200.0
Semi-annual payments of interest, fixed rate of 4.72%, balloon due February 13, 2024		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.58%, balloon due February 27, 2024		325.0			325.0
Quarterly payments of interest, floating rate of 90 day LIBOR plus 1.40%, balloon due June 13, 2024		—			50.0
Semi-annual payments of interest, fixed rate of 4.31%, balloon due June 24, 2025		200.0			200.0
Semi-annual payments of interest, fixed rate of 4.85%, balloon due February 13, 2026		140.0			140.0
Semi-annual payments of interest, fixed rate of 4.73%, balloon due February 27, 2026		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.40%, balloon due June 2, 2026		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.36%, balloon due June 24, 2026		150.0			150.0
Semi-annual payments of interest, fixed rate of 3.75%, balloon due January 30, 2027		30.0			30.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due June 27, 2027		125.0			125.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due August 2, 2027		125.0			125.0
Semi-annual payments of interest, fixed rate of 4.14%, balloon due August 4, 2027		98.0			98.0
Semi-annual payments of interest, fixed rate of 3.46%, balloon due December 1, 2027		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.55%, balloon due June 2, 2028		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 13, 2028		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.04%, balloon due February 13, 2029		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.98%, balloon due February 27, 2029		100.0			100.0
Semi-annual payments of interest, fixed rate of 4.19%, balloon due June 27, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 4.19%, balloon due August 2, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 3.48%, balloon due December 2, 2029		50.0			50.0
Semi-annual payments of interest, fixed rate of 3.99%, balloon due January 30, 2030		341.0			341.0
Semi-annual payments of interest, fixed rate of 4.44%, balloon due June 13, 2030		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.14%, balloon due March 13, 2031		180.0			180.0
Semi-annual payments of interest, fixed rate of 4.70%, balloon due June 2, 2031		25.0			25.0
Semi-annual payments of interest, fixed rate of 4.09%, balloon due January 30, 2032		69.0			69.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 27, 2032		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.34%, balloon due August 2, 2032		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.59%, balloon due June 13, 2033		125.0			125.0
Semi-annual payments of interest, fixed rate of 5.29%, balloon due March 13, 2034		40.0			40.0
Semi-annual payments of interest, fixed rate of 4.48%, balloon due June 12, 2034		175.0			175.0
Semi-annual payments of interest, fixed rate of 4.24%, balloon due January 30, 2035		79.0			79.0
Semi-annual payments of interest, fixed rate of 2.44%, balloon due February 10, 2036		100.0			100.0
Semi-annual payments of interest, fixed rate of 2.46%, balloon due May 5, 2036		75.0			75.0
Semi-annual payments of interest, fixed rate of 4.69%, balloon due June 13, 2038		75.0			75.0
Semi-annual payments of interest, fixed rate of 5.45%, balloon due March 13, 2039		40.0			40.0
Semi-annual payments of interest, fixed rate of 4.49%, balloon due January 30, 2040		56.0			56.0
Total Note Purchase Agreements		3,948.0			4,248.0
Credit Agreement:
Periodic payments of interest and principal, prime or SOFR plus up to 1.375%, expires June 22, 2028		245.0			60.0
Premium Financing Debt Facility - expires October 31, 2025:
Facility B
AUD denominated tranche, interbank rates plus 1.500%		249.0			217.6
NZD denominated tranche, interbank rates plus 1.850%		—			—
Facility C and D
AUD denominated tranche, interbank rates plus 0.830%		31.4			15.2
NZD denominated tranche, interbank rates plus 0.990%		8.6			9.1
Total Premium Financing Debt Facility		289.0			241.9
Total corporate and other debt		8,032.0			6,499.9
Less unamortized debt acquisition costs on Senior Notes and Note Purchase Agreements		(38.4	)		(20.6	)
Less unamortized discount on Bonds Payable		(28.6	)		(14.6	)
Net corporate and other debt	$	7,965.0		$	6,464.7
The Senior Notes in the table above are registered by the company with the Securities and Exchange Commission and are not guaranteed.

Senior Notes - On November 2, 2023, we closed and funded an offering of $1,000.0 million of unsecured senior notes in two tranches. The $400.0 million aggregate principal amount of 6.50% Senior Notes is due 2034 (which we refer to as the 2034 Notes) and $600.0 million aggregate principal amount of 6.75% Senior Notes is due 2054 (which we refer to as the 2054 Notes). The weighted average interest rate is 5.97% per annum after giving effect to underwriting costs and a net hedge gain. During 2021 through 2023, we entered into a pre-issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $128.0 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our

reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

On March 2, 2023, we closed and funded an offering of $950.0 million of unsecured senior notes in two tranches. The $350.0 million aggregate principal amount of 5.50% Senior Notes is due 2033 (which we refer to as the 2033 Notes) and $600.0 million aggregate principal amount of 5.75% Senior Notes is due 2053 (which we refer to as the 2053 Notes). The weighted average interest rate is 5.05% per annum after giving effect to underwriting costs and a net hedge gain. During 2019 through 2022, we entered into a pre‑issuance interest rate hedging transaction related to these notes. We realized a net cash gain of approximately $112.7 million on the hedging transactions that will be recognized on a pro rata basis as a decrease to our reported interest expense over ten years. We used the proceeds of these offerings to fund acquisitions, earnout payments related to acquisitions and general corporate purposes.

Note Purchase Agreements - During June 2023, we used operating cash to fund the $200.0 million Series N note maturity that had a fixed rate of 4.13% that was due June 24, 2023.

During June 2023, we used operating cash to fund the prepayment of the $50.0 million Series CC note floating rate of 90 day LIBOR plus 1.40%, balloon that was originally due on June 13, 2024.

During February 2023, we used operating cash to fund the $50.0 million Series E note maturity that had a fixed rate of 5.49% that was due February 10, 2023.

During June 2022, we used operating cash to fund the $200.0 million Series G note maturity that had a fixed rate of 3.69% that was due June 14, 2023.

Under the terms of the note purchase agreements described above, we may redeem the notes at any time, in whole or in part, at 100% of the principal amount of such notes being redeemed, together with accrued and unpaid interest and a “make-whole amount”. The “make-whole amount” is derived from a net present value computation of the remaining scheduled payments of principal and interest using a discount rate based on the U.S. Treasury yield plus 0.5% and is designed to compensate the purchasers of the notes for their investment risk in the event prevailing interest rates at the time of prepayment are less favorable than the interest rates under the notes. We do not currently intend to prepay any of the notes.

The note purchase agreements described above contain customary provisions for transactions of this type, including representations and warranties regarding us and our subsidiaries and various financial covenants, including covenants that require us to maintain specified financial ratios. We were in compliance with these covenants as of December 31, 2023. The note purchase agreements also provide customary events of default, generally with corresponding grace periods, including, without limitation, payment defaults with respect to the notes, covenant defaults, cross-defaults to other agreements evidencing our or our subsidiaries’ indebtedness, certain judgments against us or our subsidiaries and events of bankruptcy involving us or our material subsidiaries.

The notes issued under the note purchase agreement are senior unsecured obligations of ours and rank equal in right of payment with our Credit Agreement discussed below.

Credit Agreement - On June 22, 2023, we entered into a new Credit agreement (which we refer to as the Credit Agreement) with an administrative agent and a group of other lenders. The Credit Agreement provides for a five-year unsecured revolving credit facility in the amount of $1,200.0 million (including a $75.0 million letter of credit sub-facility), which is also available in Pounds Sterling, Canadian Dollars, Australian Dollars, New Zealand Dollars, Euros, Japanese Yen and any other currencies agreed by the lenders. On November 7, 2023, we entered into the First Amendment to the Credit Agreement, pursuant to which we increased the commitments under the Credit Agreement to $1,700.0 million. The Credit Agreement permits us to designate wholly-owned subsidiaries located in certain jurisdictions as additional borrowers, the obligations of which under the Credit Agreement will be guaranteed by the Company, subject to the terms and conditions set forth in the Credit Agreement. Any subsidiary that guarantees any notes under the Company’s existing note purchase agreements is required to guarantee the obligations under the Credit Agreement. There are currently no subsidiary borrowers or guarantors under the Credit Agreement.

Loans borrowed under the Credit Agreement bear interest at a variable annual rate based on a customary benchmark rate for each available currency including Secured Overnight Financing Rate (which we refer to as SOFR) for loans in U .S. Dollars, or at our election solely for loans in U.S. Dollars, the base rate, plus in each case an applicable margin. Interest rates on base rate loans and outstanding drawings on letters of credit under the Credit Agreement will be based on the Base Rate, as defined in the Credit Agreement, plus a margin of 0.00% to 0.375%, depending on the rating of our long-term senior unsecured debt. Interest rates for

SOFR loans and loans in currencies other than U.S. dollars under the Credit Agreement will be based on, as applicable, a SOFR Daily Floating Rate, Term SOFR, Alternative Currency Daily Rate or Alternative Currency Term Rate, as defined in the Credit Agreement, plus a margin of 0.775% to 1.375%, depending on the rating of our long-term senior unsecured debt. The annual facility fee related to the Credit Agreement is between 0.100% and 0.250% of the revolving credit commitment, depending on the rating of our long-term senior unsecured debt. Subject to certain conditions stated in the Credit Agreement, we may borrow, prepay and reborrow amounts under the Credit Agreement at any time during the term of the Credit Agreement. Funds borrowed under the Credit Agreement may be used for general corporate and working capital purposes of the Company and its subsidiaries.

The Credit Agreement also contains customary representations and warranties and affirmative and negative covenants, including financial covenants, as well as customary events of default, with corresponding grace periods, including without limitations, payment defaults, cross‑defaults to other agreements evidencing indebtedness and bankruptcy-related defaults. We were in compliance with these covenants as of December 31, 2023.

Concurrently, on June 22, 2023, we paid off and terminated all of our obligations under the Second Amended and Restated Multicurrency Credit Agreement, dated as of June 7, 2019.

At December 31, 2023, $11.6 million of letters of credit (for which we had $13.7 million of liabilities recorded at December 31, 2023) were outstanding under the Credit Agreement. See Note 17 to these consolidated financial statements for a discussion of the letters of credit. There was $245.0 million of borrowings outstanding under the Credit Agreement at December 31, 2023. Accordingly, at December 31, 2023, $1,443.4 million remained available for potential borrowings.

Premium Financing Debt Facility - On October 31, 2023, we entered into an amendment to our revolving loan facility (which we refer to as the Premium Financing Debt Facility), that provides funding for the three Australian (AU) and New Zealand (NZ) premium finance subsidiaries. The Premium Financing Debt Facility is comprised of: (i) Facility B is separated into AU$390.0 million and NZ$25.0 million tranches (the NZ$ tranche will be decreased as of May 1, 2024 to NZ$10.0 million), (ii) Facility C, an AU$60.0 million equivalent multi-currency overdraft tranche and (iii) Facility D, a NZ$15.0 million equivalent multi-currency overdraft tranche.

The interest rates on Facility B are Interbank rates, which vary by tranche, duration and currency, plus a margin of 1.500% and 1.850% for the AU$ and NZ$ tranches, respectively. The interest rates on Facilities C and D are 30 day Interbank rates, plus a margin of 0.830% and 0.990% for the AU$ and NZ$ tranches, respectively. The annual fee for Facility B is 0.675% and 0.8325% for the undrawn commitments for the AU$ and NZ$ tranches, respectively. The annual fee for Facility C is 0.77% and for Facility D is 0.90% of the total commitments of the facilities.

The terms of our Premium Financing Debt Facility include various financial covenants, including covenants that require us to maintain specified financial ratios. We were in compliance with these covenants as of December 31, 2023. The Premium Financing Debt Facility also includes customary provisions for transactions of this type, including events of default, with corresponding grace periods and cross-defaults to other agreements evidencing our indebtedness. Facilities B, C and D are secured by the premium finance receivables of the Australian and New Zealand premium finance subsidiaries.

At December 31, 2023, AU$365.0 million and NZ$0.0 million of borrowings were outstanding under Facility B, AU$45.9 million of borrowings outstanding under Facility C and NZ$13.7 million of borrowings were outstanding under Facility D, which in aggregate amount to US$289.0 million of borrowings outstanding under the Premium Financing Debt Facility. Accordingly, as of December 31, 2023, AU$25.0 million and NZ$25.0 million remained available for potential borrowing under Facility B, and AU$14.1 million and NZ$1.3 million under Facilities C and D, respectively.

See Note 17 to these consolidated financial statements for additional discussion on our contractual obligations and commitments as of December 31, 2023.

The aggregate estimated fair value of the $7,498.0 million in debt under our various senior notes and note purchase agreements at December 31, 2023 was $6,840.2 million due to the long-term duration and fixed interest rates associated with these debt obligations. No active or observable market exists for our private long-term debt. Therefore, the estimated fair value of this debt is based on the income valuation approach, which is a valuation technique that converts future amounts (for example, cash flows or income and expenses) to a single current (that is, discounted) amount. The fair value measurement is determined on the basis of the value indicated by current market expectations about those future amounts. Because our debt issuances generate a measurable income stream for each lender, the income approach was deemed to be an appropriate methodology for valuing the private placement long‑term debt. The methodology used calculated the original deal spread at the time of each debt issuance,

which was equal to the difference between the yield of each issuance (the coupon rate) and the equivalent benchmark treasury yield at that time. The market spread as of the valuation date was calculated, which is equal to the difference between an index for investment grade insurers and the equivalent benchmark treasury yield today. An implied premium or discount to the par value of each debt issuance based on the difference between the origination deal spread and market as of the valuation date was then calculated. The index we relied on to represent investment graded insurers was the Bloomberg Valuation Services (BVAL) U.S. Insurers BBB index. This index is comprised primarily of insurance brokerage firms and was representative of the industry in which we operate. For the purpose of our analysis, the average BBB rate was assumed to be the appropriate borrowing rate for us. The estimated fair value of the $245.0 million of borrowings outstanding under our Credit Agreement approximate their carrying value due to their short-term duration and variable interest rates. The estimated fair value of the $289.0 million of borrowings outstanding under our Premium Financing Debt Facility approximates their carrying value due to their short-term duration and variable interest rates.