Form
SCHEDULE 13G
Passive or exempt beneficial ownership filing.
Squadron Capital Management LLC - 12 May 2026 SCHEDULE 13G Report for C4 Therapeutics, Inc. Common Stock, $0.0001 par value per share (CCCC)
- Filing manager
- Squadron Capital Management LLC
- Reporting owner
- Squadron Master Fund LP
- Beneficially owned shares
- 5,550,000 shares
- Class ownership
- 5%
- Large-stake signal
-
Ownership
5%Beneficial ownership of this reported class.
Shares
5,550,000 sharesShares beneficially owned as disclosed.
Event date
12 May 2026Date tied to the ownership event or amendment.
Accepted by SEC
19 May 2026EDGAR 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
- CCCC
- Shares outstanding
- 111,000,000 shares
- Form type
- SCHEDULE 13G
- Accepted by SEC
- 19 May 2026, 16:09:36 UTC
- Event date
- 12 May 2026
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
2 source fields
Source evidence
4 source fields
Key filing fact
Squadron Capital Management LLC disclosed 5% ownership in C4 Therapeutics, Inc. Common Stock, $0.0001 par value per share (CCCC) on 12 May 2026.
Key facts
- Squadron Capital Management LLC filed SCHEDULE 13G for C4 Therapeutics, Inc. Common Stock, $0.0001 par value per share (CCCC).
- Disclosed ownership: 5%.
- Date of event: 12 May 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 19 May 2026, 16:09.
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
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (4)
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 |
|---|---|---|---|---|---|---|---|
| Squadron Master Fund LP | 5% | 5,550,000 | 0 | 5,550,000 | /s/ Matthew Sesterhenn | Partner, Squadron Partners LLC, its General Partner | |
| Squadron Capital Management LLC | 5% | 5,550,000 | 0 | 5,550,000 | /s/ Matthew Sesterhenn | Partner | |
| Matthew Sesterhenn | 5% | 5,550,000 | 0 | 5,550,000 | /s/ Matthew Sesterhenn | Matthew Sesterhenn | |
| William Blank | 5% | 5,550,000 | 0 | 5,550,000 | /s/ William Blank | William Blank |
CIK / CUSIP context first