Polaris Management Co. VII, L.L.C. - 11 Sep 2025 Form 4 Insider Report for Camp4 Therapeutics Corp (CAMP)

Reporting relationship: 10%+ Owner
Issuer ticker: CAMP
Reported as of: 11 Sep 2025
Net transaction value: +$1,999,999
SEC form: 4
Accepted by SEC: 11 Sep 2025, 16:59:09 UTC
Prior SEC filing: 22 Oct 2024
Source filing: View source filing
Reporting owner signature: /s/ Lauren Crockett, as attorney-in-fact for Polaris Management Co. VII, L.L.C., general partner of Polaris Partners VII, L.P.

Key filing fact

Polaris Management Co. VII, L.L.C. filed Form 4 for Camp4 Therapeutics Corp (CAMP) on 11 Sep 2025.

Key facts

This page summarizes Polaris Management Co. VII, L.L.C.'s Form 4 filing for Camp4 Therapeutics Corp (CAMP).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 11 Sep 2025, 16:59.

Change

Previous filing in this sequence was filed on 22 Oct 2024.
Current net transaction value: +$1,999,999.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (7)

CIK 0001678203 Primary reporting owner

Polaris Management Co. VII, L.L.C.

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as attorney-in-fact for Polaris Management Co. VII, L.L.C., general partner of Polaris Partners VII, L.P.
Signature date: 11 Sep 2025

CIK 0001611189

Polaris Partners VII, L.P.

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as attorney-in-fact for Polaris Management Co. VII, L.L.C.
Signature date: 11 Sep 2025

CIK 0001615991

Polaris Entrepreneurs' Fund VII, L.P.

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as attorney-in-fact for Polaris Management Co. VII, L.L.C., general partner of Polaris Entrepreneurs' Fund VII, L.P.
Signature date: 11 Sep 2025

CIK 0001910577

Polaris Partners X, L.P.

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as general counsel of Polaris Partners GP X, L.L.C., general partner of Polaris Partners X, L.P.
Signature date: 11 Sep 2025

CIK 0001910575

Polaris Partners GP X, L.L.C.

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as general counsel of Polaris Partners GP X, L.L.C.
Signature date: 11 Sep 2025

CIK 0001438226

SCHULMAN AMY W

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as attorney-in-fact for Brian Chee
Signature date: 11 Sep 2025

CIK 0001295675

Chee Brian

Relationship: 10%+ Owner
Address: ONE MARINA PARK DRIVE, 8TH FLOOR, BOSTON
Signature: /s/ Lauren Crockett, as attorney-in-fact for Amy Schulman
Signature date: 11 Sep 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CAMP transaction

Common Stock

Purchase

Transaction value: $1,869,233
Shares: +1,221,721
Change %: +76%
Price: $1.53
Shares after: 2,825,500
Date: 11 Sep 2025
Ownership: See footnote
Footnotes: F1, F2

CAMP transaction

Common Stock

Purchase

Transaction value: $130,766
Shares: +85,468
Change %: +76%
Price: $1.53
Shares after: 197,661
Date: 11 Sep 2025
Ownership: See footnote
Footnotes: F1, F3

CAMP holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 909,090
Date: 11 Sep 2025
Ownership: See footnote
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Polaris Management Co. VII, L.L.C. is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 4 footnotes

Footnote F1

On September 11, 2025, each of Polaris Partners VII, L.P. ("PP VII") and Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII") acquired shares in a private placement by the Issuer pursuant to the terms of a Securities Purchase Agreement, dated as of September 9, 2025, by and among the Issuer and the investors party thereto at a purchase price of $1.53 per share.

Footnote F2

The reported securities are owned directly by PP VII. Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, Amir Nashat, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII. Each of PMC VII and the PMC VII Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

Footnote F3

The reported securities are owned directly by PEF VII. PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

Footnote F4

The reported securities are owned directly by Polaris Partners X, L.P. ("PP X"). Polaris Partners GP X, L.L.C. ("PPGP X") is the general partner of PP X. Each of Amy Schulman and Brian Chee are the managing members of PPGP X (the "PPGP X Managing Members"). Amir Nashat ("Mr. Nashat"), a member of the Issuer's board of directors, is an interest holder of PPGP X. Each of PPGP X, the PPGP X Managing Members and Mr. Nashat, in their respective capacities with respect to PPGP X, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP X. Each of PPGP X, the PPGP X Managing Members and Mr. Nashat disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PPGP X Managing Members, Mr. Nashat or PPGP X is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.