Camp4 Therapeutics Corp: 5%+ holders

As of November 6, 2026, 7 holders' latest Schedule 13D or 13G filings report owning 5% or more of Camp4 Therapeutics Corp. The largest reported stake is Janus Henderson Group Plc's, at 12.2%. 23 filings are on record since September 11, 2025 (Schedule 13G, January 8, 2026).

AH Bio Fund I, L.P. also filed stake reports on 1 other company ↓

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Key facts

• Filing 2026-11-05 · Reporting person: Fmr LLC · Sole voting: 4,908,807 · Shared voting: 0 · Sole dispositive: 4,908,857 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-11-05
• Filing 2026-08-31 · Reporting person: 5AM Ventures VI, L.P. · Sole voting: 0 · Shared voting: 2,033,270 · Sole dispositive: 0 · Shared dispositive: 2,033,270 · SCHEDULE 13D/A, 2026-08-31
• Filing 2026-08-19 · Reporting person: Polaris Management Co. VII, L.L.C. · Sole voting: 0 · Shared voting: 3,023,161 · Sole dispositive: 0 · Shared dispositive: 3,023,161 · SCHEDULE 13D/A, 2026-08-19
• Filing 2026-08-14 · Reporting person: Balyasny Asset Management L.P. · Sole voting: 2,591,097 · Shared voting: 0 · Sole dispositive: 2,591,097 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-14
• Filing 2026-08-10 · Reporting person: Trails Edge Capital Partners, LP · Sole voting: 3,790,636 · Shared voting: 0 · Sole dispositive: 3,790,636 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-10

Camp4 Therapeutics Corp has 23 Schedule 13D or 13G filings on record since 2025-09-11. 7 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

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Keep reading

More on Camp4 Therapeutics Corp and the records around it.

Camp4 Therapeutics Corp elsewhere on the record

• Who owns it

Companies that share a holder

• AH Bio Fund I, L.P. also filed stake reports on 1 other company: Freenome, Inc. (Jul 2026)
• 5AM Ventures VI, L.P. also filed stake reports on 2 other companies: ARTIVA BIOTHERAPEUTICS, INC. (Aug 2026), VOR BIOPHARMA INC. (Jul 2025)
• Enavate Sciences GP, LLC also filed stake reports on 2 other companies: Zenas BioPharma, Inc. (Aug 2026)

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What the Full Report on Camp4 Therapeutics 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

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7. Warning Bells

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Voting and dispositive power, as filed

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The latest filing identifies Camp4 Therapeutics Corp by CUSIP 13463J101 and gives its principal executive office as ONE KENDALL SQUARE, BUILDING 1400 WEST, 3RD FLOOR, CAMBRIDGE, MA 02139 (SCHEDULE 13G/A, 2026-11-05).

What the percentages are based on

Each of the Reporting Persons may be deemed to be the beneficial owner of approximately 4.99% of the Shares, based on the 51,925,800 Shares outstanding as of May 6, 2026, as reported in the Issuer's report filed on form 10-Q with the Securities and Exchange Commission on May 7, 2026.Balyasny Asset Management L.P., SCHEDULE 13G/A, 2026-08-14

Timeline

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Questions about who owns Camp4 Therapeutics Corp

Who owns Camp4 Therapeutics Corp?

On this page, 7 holders' latest ownership filings report 5% or more of Camp4 Therapeutics Corp: Janus Henderson Group Plc (12.2%, Schedule 13G, filed 2026-01-08), Coastlands Capital LP (9.99%, Schedule 13G/A, filed 2025-12-11), 5AM Ventures VI, L.P. (9.9%, Schedule 13D/A, filed 2026-08-31), Fmr LLC (7.8%, Schedule 13G/A, filed 2026-11-05) and Vivo Opportunity Fund Holdings, L.P. (7.4%, Schedule 13G/A, filed 2026-02-13); 2 more are listed above.

Who are the largest shareholders of Camp4 Therapeutics Corp?

By the share each holder's latest filing reports, the largest holders of Camp4 Therapeutics Corp on this page are Janus Henderson Group Plc (12.2%), Coastlands Capital LP (9.99%) and 5AM Ventures VI, L.P. (9.9%).

When did Janus Henderson Group Plc buy into Camp4 Therapeutics Corp?

The filings give report dates, not purchase dates. The earliest filing from Janus Henderson Group Plc on this page is the Schedule 13G, filed 2026-01-08, reporting 12.2%.

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%); 23 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 Camp4 Therapeutics Corp

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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.

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