Item 4 — Purpose of Transaction
Item 4 of the Schedule 13D is hereby amended and supplemented as follows: On June 3, 2026, KKR Phoenix Aggregator L.P., as a selling stockholder, the Issuer, and the other selling stockholders identified therein, entered into an underwriting agreement (the "Underwriting Agreement") with Goldman Sachs & Co. LLC, (the "Underwriter"), providing for the offer and sale of 15,000,000 shares of Common Stock by the selling stockholders, including 14,669,771 shares by KKR Phoenix Aggregator L.P. (the "Offering"), and purchase by the Underwriter of the shares of Common Stock, at a net price to KKR Phoenix Aggregator L.P. of $58.453 per share. The Offering closed on June 5, 2026. The Offering was made pursuant to the Issuer's shelf registration statement on Form S-3 (File No. 333- 287916), as supplemented by a base prospectus dated June 10, 2025 as supplemented by a preliminary prospectus supplement and prospectus supplement, each dated June 5, 2026. Pursuant to the Underwriting Agreement, KKR Phoenix Aggregator L.P. has entered into a lock-up agreement (the "Lock-Up Agreement") with the Underwriter pursuant to which it has agreed with the Underwriter, subject to customary exceptions, not to offer, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock, or any securities convertible into or exercisable or exchangeable for Common Stock, during the period from June 3, 2026 continuing through the date 60 days thereafter, except with the prior written consent of the Underwriter. The descriptions of the Underwriting Agreement and Lock-Up Agreement contained in this Item 4 are not intended to be complete and are qualified in their entirety by reference to the Underwriting Agreement and Form of Lock-Up Agreement, each of which is filed as an exhibit hereto and incorporated by reference herein.