Corvex (MOVE) Co-CEO Seth Demsey reports 20% ownership stake

Rhea-AI Filing Summary

Seth Demsey, Co-Chief Executive Officer and director of Corvex, Inc., reports beneficial ownership of 5,540,329 shares of the company’s common stock, representing 20.0% of the 27,635,745 shares outstanding as of July 7, 2026. These shares include 5,508,920 held directly and 31,409 held through Ainsworth Holdings, LLC, over which he has sole voting and dispositive power. He also holds additional unvested restricted stock units and unexercisable stock options that are excluded from this 20.0% figure. Demsey received these shares primarily as consideration for Corvex, Inc.’s acquisition of Corvex Legacy Holdings, Inc. and for his executive and board service, giving him significant influence over the company’s governance and strategic direction.

Insights

Equity ownership and governance analyst

Corvex’s Co-CEO now holds a disclosed 20% equity stake.

Seth Demsey, Co-Chief Executive Officer and director of Corvex, Inc., reports beneficial ownership of 5,540,329 common shares, or 20.0% of the company, based on 27,635,745 shares outstanding as of July 7, 2026. This is a sizable block for a single insider.

The filing details that 5,508,920 shares are held directly and 31,409 shares are held via Ainsworth Holdings, LLC, where Demsey has sole voting and dispositive power. Additional equity exposure through 3,054,235 restricted stock units and 2,902,143 stock options is excluded because they will not vest or become exercisable within 60 days.

These holdings largely arose from consideration for the acquisition of Corvex Legacy Holdings, Inc. and compensation for executive and board service. Demsey’s combined ownership and executive role suggest meaningful influence over corporate decisions, including operations and governance matters referenced in the Schedule 13D, though any future actions would depend on decisions not specified in this disclosure.

Key Figures

Beneficially owned shares: 5,540,329 shares Ownership percentage: 20.0% Shares outstanding: 27,635,745 shares +5 more

8 metrics

Beneficially owned shares 5,540,329 shares Corvex common stock beneficially owned by Seth Demsey

Ownership percentage 20.0% Percent of Corvex common stock class represented by Demsey’s holdings

Shares outstanding 27,635,745 shares Corvex common stock outstanding as of July 7, 2026

Directly held shares 5,508,920 shares Common stock held directly by Seth Demsey

Ainsworth Holdings shares 31,409 shares Common stock held by Ainsworth Holdings, LLC

Unvested RSUs 3,054,235 shares Common stock underlying restricted stock units not vesting within 60 days

Unexercisable options 2,902,143 shares Common stock underlying stock options not exercisable within 60 days

Preferred conversion receipts 24,671 and 5,515,658 shares Common shares received on March 31 and July 7, 2026 from preferred conversion

Key Terms

beneficially owned, sole dispositive power, restricted stock units, stock options, +2 more

6 terms

beneficially owned financial

"The Reporting Person beneficially own an aggregate of 5,540,329 shares of the Issuer's Common Stock."

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power financial

"has the sole power to dispose or direct the disposition of 5,540,329 shares of Common Stock"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

restricted stock units financial

"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"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

stock options financial

"and 2,902,143 shares of Common Stock underlying stock options that are not exercisable in the next 60 days."

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

Schedule 13D regulatory

"If the filing person has previously filed a statement on Schedule 13G to report the acquisition"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

Power of Attorney regulatory

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

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

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Available on EDGAR 07/08/2026 - 08:13 PM Accepted by SEC EDGAR 07/08/2026 - 08:13 PM Learn about SEC filing dates

FAQ

How many Corvex (MOVE) shares does Seth Demsey beneficially own?

Seth Demsey beneficially owns 5,540,329 shares of Corvex common stock. This total includes 5,508,920 shares held directly and 31,409 shares held through Ainsworth Holdings, LLC, where he has sole voting and dispositive power over the shares.

What percentage of Corvex (MOVE) does Seth Demsey’s stake represent?

His 5,540,329 shares represent 20.0% of Corvex’s outstanding common stock. This percentage is calculated using 27,635,745 shares outstanding as of July 7, 2026, giving Demsey a significant single-holder stake in the company.

How did Seth Demsey acquire his Corvex (MOVE) shares?

Demsey received 5,540,329 shares between March and July 2026 as consideration for Corvex, Inc.’s acquisition of Corvex Legacy Holdings, Inc. Additional shares and derivative securities were issued as compensation for his roles as Co-Chief Executive Officer and board member.

What additional Corvex (MOVE) equity does Seth Demsey hold beyond current shares?

Beyond current shares, Demsey has 3,054,235 shares underlying restricted stock units and 2,902,143 shares underlying stock options. These are excluded from his reported beneficial ownership because they will not vest or become exercisable within the next 60 days.

What control or influence does Seth Demsey have over Corvex (MOVE)?

Demsey serves as Co-Chief Executive Officer and board member and beneficially owns 20.0% of the common stock. The filing notes he may influence corporate activities, including operations, governance, and control matters typically described in Item 4 of Schedule 13D instructions.

Are there any agreements related to Seth Demsey’s Corvex (MOVE) shares?

The filing states there are no contracts, arrangements, understandings, or relationships between Demsey and any other person regarding Corvex securities. His reported holdings are tied to the acquisition consideration and compensation for executive and board service.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

Corvex, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

62459M305

(CUSIP Number)

Demsey Seth
3401 North Fairfax Drive, Suite 3230
Arlington, VA, 22226
(866) 438-4787

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

07/01/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 62459M305

1

Name of reporting person

Seth Demsey

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 5,540,329.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 5,540,329.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

5,540,329.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

20.0 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

(1) Consists of (i) 5,508,920 shares of Common Stock held directly by Mr. Seth Demsey (the "Reporting Person") and (ii) 31,409 shares of Common Stock held by Ainsworth Holdings, LLC ("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. (2) Based on the 27,635,745 shares of Common Stock outstanding as of July 7, 2026.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock
(b)	Name of Issuer: Corvex, Inc.
(c)	Address of Issuer's Principal Executive Offices: 3401 North Fairfax Drive, Suite 3230, Arlington, VIRGINIA , 22226.
Item 1 Comment: This Schedule 13D relates to the shares of common stock, par value $0.0001 (the "Common Stock") of Corvex, Inc. (the "Issuer"). The principal executive offices of the Issuer are located at 3401 North Fairfax Drive, Suite 3230, Arlington, Virginia, 22226.
Item 2.	Identity and Background
(a)	Seth Demsey (the "Reporting Person").
(b)	The business address for the Reporting Person is: 3401 North Fairfax Drive, Suite 3230, Arlington, Virginia, 22226.
(c)	Mr. Demsey serves as Co-Chief Executive Officer of the Issuer and a member of the Issuer's Board of Directors.
(d)	During the last five years, the Reporting Person has not been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	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.
(f)	The Reporting Person is a citizen of the United States.
Item 3.	Source and Amount of Funds or Other Consideration
	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.
Item 4.	Purpose of Transaction
	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.
Item 5.	Interest in Securities of the Issuer
(a)	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.
(b)	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.
(c)	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.
(d)	None.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	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.
Item 7.	Material to be Filed as Exhibits.
	1. Power of Attorney, dated July 7, 2026.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Seth Demsey

Signature:	/s/ Mark Busch
Name/Title:	Attorney-in-Fact
Date:	07/08/2026

Comments accompanying signature:

This Schedule 13D was executed by Mark Busch as Attorney-in-Fact for Seth Demsey pursuant to the Power of Attorney granted thereby, a copy of which is attached as Exhibit 1.