Form SCHEDULE 13D Corvex, Inc. Filed by: Demsey Seth

The business address for the Reporting Person is: 3401 North Fairfax Drive, Suite 3230, Arlington, Virginia, 22226.

Mr. Demsey serves as Co-Chief Executive Officer of the Issuer and a member of the Issuer's Board of Directors.

During the last five years, the Reporting Person has not been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors).

During the last five years, the Reporting Person was not a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

The Reporting Person is a citizen of the United States.

The Reporting Person received an aggregate of 5,540,329 shares of Common Stock between March and July 2026 as consideration from the Issuer's acquisition of Corvex Legacy Holdings, Inc. (formerly Corvex, Inc.) ("Corvex OpCo"). The Reporting Person's ownership of Corvex OpCo securities was funded from his personal funds or received for services as Co-Chief Executive Officer of Corvex OpCo. All other shares of Common Stock and derivative securities described in Item 5 below have been issued to the Reporting Person in connection with his services to the Issuer as Co-Chief Executive Officer and member of the Board of Directors.

Mr. Demsey serves as Co-Chief Executive Officer of the Issuer and a member of the Issuer's Board of Directors. In such capacity, Mr. Demsey may engage in communications with the Board of Directors of the Issuer, members of management of the Issuer, other shareholders of the Issuer, financial and legal advisers and other parties regarding the Issuer, including but not limited to its operations, governance and control. In addition, in his capacity as Co-Chief Executive Officer of the Board, Mr. Demsey may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of the instructions to Item 4 of Schedule 13D. Except as set forth herein, the Reporting Person does not have any plans or proposals which relate to, or could result in, any of the matters referred to in paragraphs (a) through (j), inclusive, of the instructions to Item 4 of Schedule 13D. The Reporting Person may, at any time and from time to time, review or reconsider his positions and/or change his purpose and/or formulate plans or proposals with respect thereto.

The Reporting Person beneficially own an aggregate of 5,540,329 shares of the Issuer's Common Stock. Such amount represents 20.0% of the outstanding shares of Common Stock based on the 27,635,745 shares of Common Stock outstanding as of July 7, 2026.

Mr. Demsey has the sole power to vote or direct the vote of 5,540,329 shares of Common Stock; has the shared power to vote or direct the vote of no shares of Common Stock; has the sole power to dispose or direct the disposition of 5,540,329 shares of Common Stock; and has the shared power to dispose or direct the disposition of no shares of Common Stock. Such shares consist of (i) 5,508,920 shares of Common Stock held directly by Mr. Demsey and (ii) 31,409 shares of Common Stock held by Ainsworth. The Reporting Person is the managing member of Ainsworth and has sole voting and dispositive power over the Common Stock held by Ainsworth. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein. Such amount excludes an additional 3,054,235 shares of Common Stock underlying restricted stock units that will not vest in the next 60 days and 2,902,143 shares of Common Stock underlying stock options that are not exercisable in the next 60 days.

On March 19, 2026, the Reporting Person received various shares of the Issuer's preferred stock representing an aggregate of 5,540,329 shares of Common Stock as consideration for the Issuer's acquisition of Corvex OpCo. Pursuant to the conversion of such shares of preferred stock, 24,671 shares of Common Stock were received on March 31, 2026 and an additional 5,515,658 shares of Common Stock were received on July 7, 2026. The Reporting Person's ownership of Corvex OpCo securities was funded from his personal funds and as compensation for his services as Co-Chief Executive Officer of Corvex OpCo.

None.

Not applicable.

There are no contracts, arrangements, understandings or relationships (legal or otherwise) between the Reporting Person and any other person with respect to any securities of the Issuer.

1. Power of Attorney, dated July 7, 2026.