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5%+ stakes · Schedule 13D and 13G

Corvex, Inc.: 5%+ holders

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Who has reported owning 5% or more of Corvex, Inc., from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

As of November 8, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Corvex, Inc. The largest reported stake is Seth Demsey's, at 20%. 2 filings are on record since July 8, 2026 (Schedule 13D, July 8, 2026).

3 more records on Corvex, Inc. ↓

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At 5% or more2
Filings2
Latest filing2026-07-08

Corvex, Inc. has 2 Schedule 13D or 13G filings on record since 2026-07-08. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
20%5,540,329SCHEDULE 13D, 2026-07-082026-07-01
14.8%4,071,809SCHEDULE 13D, 2026-07-082026-07-01

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More on Corvex, Inc. and the records around it.

Corvex, Inc. elsewhere on the record

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What the Full Report on Corvex, Inc. covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

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Voting and dispositive power, as filed

Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Seth Demsey5,540,32905,540,3290SCHEDULE 13D, 2026-07-08
John Crystal III4,071,80904,071,8090SCHEDULE 13D, 2026-07-08

The latest filing identifies Corvex, Inc. by CUSIP 62459M305 and gives its principal executive office as 3401 North Fairfax Drive, Suite 3230, Arlington, VA 22226 (SCHEDULE 13D, 2026-07-08).

Source of funds (Item 3)

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.Seth Demsey, SCHEDULE 13D, 2026-07-08
The Reporting Person received an aggregate of 4,071,809 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.John Crystal III, SCHEDULE 13D, 2026-07-08

Purpose of Transaction (Item 4)

Seth Demsey

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 4 of the SCHEDULE 13D filed 2026-07-08

John Crystal III

Mr. Crystal serves as Co-Chief Executive Officer of the Issuer and a member of the Issuer's Board of Directors. In such capacity, Mr. Crystal 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. Crystal 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 4 of the SCHEDULE 13D filed 2026-07-08

Timeline

FiledHolderPercentFiling
2026-07-08Seth Demsey20%SCHEDULE 13D
2026-07-08John Crystal III14.8%SCHEDULE 13D

Questions about who owns Corvex, Inc.

Who owns Corvex, Inc.?

On this page, 2 holders' latest ownership filings report 5% or more of Corvex, Inc.: Seth Demsey (20%, Schedule 13D, filed 2026-07-08) and John Crystal III (14.8%, Schedule 13D, filed 2026-07-08).

Who are the largest shareholders of Corvex, Inc.?

By the share each holder's latest filing reports, the largest holders of Corvex, Inc. on this page are Seth Demsey (20%) and John Crystal III (14.8%).

When did Seth Demsey buy into Corvex, Inc.?

The filings give report dates, not purchase dates. The earliest filing from Seth Demsey on this page is the Schedule 13D, filed 2026-07-08, reporting 20%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 2 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

Also on the record for Corvex, Inc.

DateRecordFigureOur pageSource
September 4, 2026Form D, private offering$33M soldForm D pageSource

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/corvex
Last updated 2026-11-08
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3
Who owns 5% or more of Corvex, Inc.? 2 holders at 5% or more, largest Seth Demsey 20%. MentionFox, 2026-11-08. https://mentionfox.com/stakes/corvex