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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
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X0202 SCHEDULE 13D/A 0001104659-25-033995 0001352851 XXXXXXXX LIVE 1 Common Stock, par value $.01 06/26/2026 false 0001127703 74267C106 PROASSURANCE CORPORATION 100 Brookwood Place Birmingham AL 35209 David J. Snyderman 847-905-4400 1603 Orrington Avenue 13th Floor Evanston IL 60201 0001352851 N Magnetar Financial LLC b OO N DE 0.00 0.00 0.00 0.00 0.00 N 0 IA OO 0001353085 N Magnetar Capital Partners LP b OO N DE 0.00 0.00 0.00 0.00 0.00 N 0 HC OO 0001368026 N Supernova Management LLC b OO N DE 0.00 0.00 0.00 0.00 0.00 N 0 HC OO 0001953511 N David J. Snyderman b OO N X1 0.00 0.00 0.00 0.00 0.00 N 0 IN HC Common Stock, par value $.01 PROASSURANCE CORPORATION 100 Brookwood Place Birmingham AL 35209 This Amendment No. 1 ("Amendment No. 1") relates to the Statement of Beneficial Ownership on Schedule 13D filed jointly by Magnetar Financial LLC, a Delaware limited liability company ("Magnetar Financial"), Magnetar Capital Partners LP, a Delaware limited partnership ("Magnetar Capital Partners"), Supernova Management LLC, a Delaware limited liability company ("Supernova Management"), and David J. Snyderman ("Mr. Snyderman") with the SEC on April 4, 2025, (as amended by this Amendment No. 1, the "Schedule 13D"). This Amendment No. 1 is being filed to report that the Reporting Persons are no longer beneficial owners of more than 5% of the Shares. The filing of this Amendment No. 1 represents the final amendment to this Schedule 13D and constitutes an exit filing for the Reporting Persons. Except as set forth below, all Items of the Schedule 13D remain unchanged. All capitalized terms not otherwise defined herein shall have the meanings ascribed to such terms in the Schedule 13D. Since the filing of the Schedule 13D on April 4, 2025, on June 26, 2026, the Issuer consummated the merger (the "Merger") pursuant to which each issued and outstanding Share was cancelled and converted into the right to receive $25.00 in cash, without interest. In connection with the Merger, the Reporting Persons' 2,615,966 Shares, which consisted of 896,690 Shares sold for the benefit of PRA Master Fund; 644,313 Shares sold for the benefit of Systematic Master Fund; 290,659 Shares sold for the benefit of the Relative Value Master Fund and 784,304 Shares sold for the benefit of two Managed Accounts, were cancelled and converted into the right to receive $25.00 in cash, without interest. As of the close of business on June 26, 2026, each of the Reporting Persons may have been deemed to have beneficial ownership and the power to vote and direct the disposition of 0 Shares, which represented beneficial ownership of 0% of the Shares. As of the close of business on June 26, 2026, each of the Reporting Persons may have been deemed to have beneficial ownership and the power to vote and direct the disposition of 0 Shares, which represented beneficial ownership of 0% of the Shares. The response to Item 4 of this Amendment No. 1 is incorporated herein by reference. The Reporting Persons purchased additional 53,990 Shares in aggregate totaling $1,309,032.67 (excluding commissions and other execution-related costs) on behalf of the Funds in the prior sixty days. As of June 26, 2026, the Reporting Persons ceased to be beneficial owners of more than five percent of the Shares. As of the close of business June 26, 2026, the Reporting Persons ceased to be beneficial owners of more than five percent of the Shares. N/A 99.1 Joint Filing Agreement, dated as of June 30, 2026, among the Reporting Persons. 99.2 Power of Attorney, dated as of December 22, 2022 filed by the Reporting Persons on June 30, 2026. 99.3 Schedule A, dated as of June 30, 2026. Magnetar Financial LLC /s/ Hayley Stein Hayley Stein, Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC, GP of Magnetar Capital Partners LP, Member 06/30/2026 Magnetar Capital Partners LP /s/ Hayley Stein Hayley Stein, Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC, its General Partner 06/30/2026 Supernova Management LLC /s/ Hayley Stein Hayley Stein, Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC 06/30/2026 David J. Snyderman /s/ Hayley Stein Hayley Stein, Attorney-in-fact for David J. Snyderman 06/30/2026 MAGNETAR FINANCIAL LLC BY: Magnetar Capital Partners LP, its Sole Member By: Supernova Management LLC, its General Partner MAGNETAR CAPITAL PARTNERS LP By: Supernova Management LLC, its General Partner