Venrock Healthcare Capital Partners II, L.P. - 30 Jun 2025 SCHEDULE 13G/A Report for Cogent Biosciences, Inc. Common Stock, $0.001 par value per share (COGT)

Filing manager
Venrock Healthcare Capital Partners II, L.P.
Reporting owner
Venrock Healthcare Capital Partners II, L.P.
Security
Cogent Biosciences, Inc. Common Stock, $0.001 par value per share
Beneficially owned shares
4,755,411 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G/A

Passive or exempt beneficial ownership filing.

Ownership

4.2%

Beneficial ownership of this reported class.

Shares

4,755,411 shares

Shares beneficially owned as disclosed.

Event date

30 Jun 2025

Date tied to the ownership event or amendment.

Accepted by SEC

14 Aug 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
4.2%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
COGT
Shares outstanding
113,224,071 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G/A
Accepted by SEC
14 Aug 2025, 18:04:04 UTC
Event date
30 Jun 2025
Prior SEC filing
11 Apr 2025
Source filing
View source filing

Key filing fact

Venrock Healthcare Capital Partners II, L.P. disclosed 4.2% ownership in Cogent Biosciences, Inc. Common Stock, $0.001 par value per share (COGT) on 30 Jun 2025.

Key facts

  • Venrock Healthcare Capital Partners II, L.P. filed SCHEDULE 13G/A for Cogent Biosciences, Inc. Common Stock, $0.001 par value per share (COGT).
  • Disclosed ownership: 4.2%.
  • Date of event: 30 Jun 2025.

Change

  • Previous schedule filing date: 11 Apr 2025.
  • Current filing was accepted on 14 Aug 2025, 18:04.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (10)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Venrock Healthcare Capital Partners II, L.P. 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By VHCP Management II, LLC, its General Partner, By Sherman G. Souther, Authorized Signatory
VHCP Co-Investment Holdings II, LLC 4.2% 4,755,411 0 4,755,411 s/ Sherman G. Souther By VHCP Management II, LLC, its Manager, By Sherman G. Souther, Authorized Signatory
VHCP Management II, LLC 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By Sherman G. Souther, Authorized Signatory
Venrock Healthcare Capital Partners III, L.P. 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By VHCP Management III, LLC, its General Partner, By Sherman G. Souther, Authorized Signatory
VHCP Co-Investment Holdings III, LLC 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By VHCP Management III, LLC, its Manager, By Sherman G. Souther, Authorized Signatory
Venrock Healthcare Capital Partners EG, L.P. 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By VHCP Management EG, LLC, its General Partner, By Sherman G. Souther, Authorized Signatory
VHCP Management III, LLC 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By Sherman G. Souther, Authorized Signatory
VHCP Management EG, LLC 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By Sherman G. Souther, Authorized Signatory
Nimish Shah 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By Sherman G. Souther, Attorney-in-fact
Bong Y. Koh 4.2% 4,755,411 0 4,755,411 /s/ Sherman G. Souther By Sherman G. Souther, Attorney-in-fact
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