Lynx1 Capital Management LP - 08 Oct 2025 SCHEDULE 13G/A Report for Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share (CGEM)

Filing manager: Lynx1 Capital Management LP
Reporting owner: Lynx1 Capital Management LP
Security: Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share
Beneficially owned shares: 8,549,084 shares
Class ownership: 14%
Large-stake signal: Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
Ownership
14%
Beneficial ownership of this reported class.
Shares
8,549,084 shares
Shares beneficially owned as disclosed.
Event date
08 Oct 2025
Date tied to the ownership event or amendment.
Accepted by SEC
10 Oct 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.
Symbol: CGEM
Shares outstanding: 58,959,200 shares
Form type: SCHEDULE 13G/A
Accepted by SEC: 10 Oct 2025, 18:53:20 UTC
Event date: 08 Oct 2025
Previous filing: 14 Aug 2025
SEC filing: View on sec.gov

Key filing fact

Lynx1 Capital Management LP disclosed 14% ownership in Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share (CGEM) on 08 Oct 2025.

Key facts

Lynx1 Capital Management LP filed SCHEDULE 13G/A for Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share (CGEM).
Disclosed ownership: 14%.
Date of event: 08 Oct 2025.

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.

Backed by Schedule 13D/13G

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

Reporting persons

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
Lynx1 Capital Management LP	14%	8,549,084	0	8,549,084	/s/ Weston Nichols	By: Lynx1 Capital Management GP LLC, General Partner, By: Weston Nichols, Sole Member
Weston Nichols	14%	8,549,084	0	8,549,084	/s/ Weston Nichols	Weston Nichols, Individually

CIK / CUSIP context first

Broader feeds