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5%+ stakes · Schedule 13D and 13G

Apogee Acquisition Corp: 5%+ holders

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

As of November 9, 2026, 8 holders' latest Schedule 13D or 13G filings report owning 5% or more of Apogee Acquisition Corp. The largest reported stake is Apogee Acquisition Sponsor LLC's, at 25.4%. 10 filings are on record since April 9, 2026 (Schedule 13D, April 15, 2026).

The K2 Principal Fund, L.P. also filed stake reports on 6 other companies ↓

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Key facts

  • · Reporting person: Highbridge Capital Management, LLC · Sole voting: 1,638,750 · Shared voting: 0 · Sole dispositive: 1,638,750 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
  • · Reporting person: Polar Asset Management Partners Inc. · Sole voting: 1,275,000 · Shared voting: 0 · Sole dispositive: 1,275,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
  • · Reporting person: Aristeia Capital, L.L.C. · Sole voting: 1,250,000 · Shared voting: 0 · Sole dispositive: 1,250,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
  • · Reporting person: Harraden Circle Investments, LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
  • · Reporting person: Magnetar Financial LLC · Sole voting: 0 · Shared voting: 1,250,000 · Sole dispositive: 0 · Shared dispositive: 1,250,000 · SCHEDULE 13G, 2026-08-13
At 5% or more8
Filings10
Latest filing2026-08-14

Apogee Acquisition Corp has 10 Schedule 13D or 13G filings on record since 2026-04-09. 8 holders' latest filing reports 5% or more of class a ordinary shares, $0.0001 par value. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Apogee Acquisition Sponsor LLC25.4%5,960,000SCHEDULE 13D, 2026-04-152026-04-08
Karpus Management, Inc.11.28%2,648,075SCHEDULE 13G, 2026-07-072026-06-30
Highbridge Capital Management, LLC9.2%1,638,750SCHEDULE 13G, 2026-08-142026-06-30
Polar Asset Management Partners Inc.7.2%1,275,000SCHEDULE 13G, 2026-08-142026-06-30
Magnetar Financial LLC7.05%1,250,000SCHEDULE 13G, 2026-08-132026-06-30
Aristeia Capital, L.L.C.7.05%1,250,000SCHEDULE 13G, 2026-08-142026-06-30
Glazer Capital, LLC5.45%965,704SCHEDULE 13G, 2026-08-132026-06-30
The K2 Principal Fund, L.P.5.33%800,000SCHEDULE 13G, 2026-04-092026-04-07
Harraden Circle Investments, LLC0%0SCHEDULE 13G/A, 2026-08-142026-06-30

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More on Apogee Acquisition Corp and the records around it.

Apogee Acquisition Corp elsewhere on the record

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What the Full Report on Apogee Acquisition Corp 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

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  8. Sources

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Voting and dispositive power, as filed

Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Karpus Management, Inc.2,648,07502,648,0750SCHEDULE 13G, 2026-07-07
Highbridge Capital Management, LLC1,638,75001,638,7500SCHEDULE 13G, 2026-08-14
Polar Asset Management Partners Inc.1,275,00001,275,0000SCHEDULE 13G, 2026-08-14
Magnetar Financial LLC01,250,00001,250,000SCHEDULE 13G, 2026-08-13
Magnetar Capital Partners LP01,250,00001,250,000SCHEDULE 13G, 2026-08-13
Supernova Management LLC01,250,00001,250,000SCHEDULE 13G, 2026-08-13
David J. Snyderman01,250,00001,250,000SCHEDULE 13G, 2026-08-13
Aristeia Capital, L.L.C.1,250,00001,250,0000SCHEDULE 13G, 2026-08-14
Glazer Capital, LLC0965,7040965,704SCHEDULE 13G, 2026-08-13
Paul J. Glazer0965,7040965,704SCHEDULE 13G, 2026-08-13
Harraden Circle Investments, LLC0000SCHEDULE 13G/A, 2026-08-14
Frederick V. Fortmiller, Jr.0000SCHEDULE 13G/A, 2026-08-14

The latest filing identifies Apogee Acquisition Corp by CUSIP G04126101 and gives its principal executive office as 2106 HOUSE AVE SUITE 375, CHEYENNE, WY 82001 (SCHEDULE 13G, 2026-08-14).

What the percentages are based on

As of June 30, 2026, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 7.05% of the total number of shares outstanding (based upon the information provided by the Issuer in the Form 10-Q filed on May 15, 2026 there were approximately 17,720,000 Shares outstanding).Magnetar Financial LLC, SCHEDULE 13G, 2026-08-13

Purpose of Transaction (Item 4)

Apogee Acquisition Sponsor LLC

On November 20, 2025, the Sponsor paid $25,000, or approximately $0.003 per share, to cover certain of the Issuer's offering costs in exchange for 9,583,333 Class B ordinary shares (the "Founder Shares"), pursuant to the Founder Shares Subscription Agreement dated as of November 20, 2025 between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"). In February 2026, the Sponsor transferred an aggregate of 280,000 Founder Shares to the Issuer's independent directors and Chief Operating Officer at a purchase price of approximately $0.003 per share. On March 31, 2026, the Sponsor surrendered, for no consideration, 3,833,333 Founder Shares. On March 31, 2026, the Issuer's Chief Operating Officer transferred 20,000 Founder Shares to the Sponsor at a purchase price of approximately $0.004 per share. As a result, the Sponsor holds 5,490,000 Founder Shares. On April 8, 2026, the Issuer consummated its initial public offering ("IPO") and in connection with the consummation, the Sponsor purchased an aggregate of 470,000 private placement units for an aggregate purchase price of $4,700,000. Each unit purchased was comprised of one Class A ordinary share of the Issuer, one redeemable warrant, and one right to receive one-fifth (1/5) of a Class A ordinary share upon the consummation of an initial business combination (as described more fully in the Issuer's final prospectus dated April 6, 2026). The reporting persons made the acquisitions reported in this Schedule 13D in …The first part of Item 4 of the SCHEDULE 13D filed 2026-04-15; the filing has the rest

Timeline

FiledHolderPercentFiling
2026-04-09The K2 Principal Fund, L.P.5.33%SCHEDULE 13G
2026-04-14Harraden Circle Investments, LLC7.05%SCHEDULE 13G
2026-04-15Apogee Acquisition Sponsor LLC25.4%SCHEDULE 13D
2026-07-07Karpus Management, Inc.11.28%SCHEDULE 13G
2026-08-13Glazer Capital, LLC5.45%SCHEDULE 13G
2026-08-13Magnetar Financial LLC7.05%SCHEDULE 13G
2026-08-14Highbridge Capital Management, LLC9.2%SCHEDULE 13G
2026-08-14Aristeia Capital, L.L.C.7.05%SCHEDULE 13G
2026-08-14Harraden Circle Investments, LLC0%SCHEDULE 13G/A
2026-08-14Polar Asset Management Partners Inc.7.2%SCHEDULE 13G

Questions about who owns Apogee Acquisition Corp

Who owns Apogee Acquisition Corp?

On this page, 8 holders' latest ownership filings report 5% or more of Apogee Acquisition Corp: Apogee Acquisition Sponsor LLC (25.4%, Schedule 13D, filed 2026-04-15), Karpus Management, Inc. (11.28%, Schedule 13G, filed 2026-07-07), Highbridge Capital Management, LLC (9.2%, Schedule 13G, filed 2026-08-14), Polar Asset Management Partners Inc. (7.2%, Schedule 13G, filed 2026-08-14) and Magnetar Financial LLC (7.05%, Schedule 13G, filed 2026-08-13); 3 more are listed above.

Who are the largest shareholders of Apogee Acquisition Corp?

By the share each holder's latest filing reports, the largest holders of Apogee Acquisition Corp on this page are Apogee Acquisition Sponsor LLC (25.4%), Karpus Management, Inc. (11.28%) and Highbridge Capital Management, LLC (9.2%).

When did Apogee Acquisition Sponsor LLC buy into Apogee Acquisition Corp?

The filings give report dates, not purchase dates. The earliest filing from Apogee Acquisition Sponsor LLC on this page is the Schedule 13D, filed 2026-04-15, reporting 25.4%.

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%); 10 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 Apogee Acquisition Corp

DateRecordFigureOur pageSource
October 19, 2026Leadership change: Anna Brunelle departs, Director—Leadership changesSource
April 10, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

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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/apogee-acquisition
Last updated 2026-11-09
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Who owns 5% or more of Apogee Acquisition Corp? 8 holders at 5% or more, largest Apogee Acquisition Sponsor LLC 25.4%. MentionFox, 2026-11-09. https://mentionfox.com/stakes/apogee-acquisition