Security key
344174107
Foghorn Therapeutics Inc. - Common Stock, $0.0001 par value per share (FHTX)
CUSIP: 344174107
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 41,875,144
- Total 13F value
- $226,126,895
- Share change
- +974,902
- SEC-reported price per share
- $5.40
- Number of holders
- 93
- Value change
- +$5,631,604
- Number of buys
- 45
- Number of sells
- 33
- Shares outstanding
- 58,724,855
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
93
Top holders
10
FHTX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Foghorn Therapeutics Inc. SEC filings
Foghorn Therapeutics Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 344174107
Recent filing periods:
Ownership snapshot
Top reported holders of FHTX - Foghorn Therapeutics Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Flagship Pioneering, LLC
Disclosed value leader
Flagship Pioneering, LLC
Comparable rows
15/15
Latest evidence
30 Sep 2025
13F
Lead comparable stake: 22%
Showing 1-6 of 15 holder rows.
Quick read
Flagship Pioneering, LLC leads the comparable SEC ownership view at 22%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Flagship Pioneering, LLC's linked filing trail.
Comparable ownership
Top 5
Flagship Pioneering, LLC
22%
FMR LLC
9.3%
BVF INC/IL
9%
DEERFIELD MANAGEMENT COMPANY, L.P.
5.5%
RAYMOND JAMES FINANCIAL INC
4.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Flagship Pioneering, LLC |
13F
Company
|
22%
|
$61,976,446
12,674,120 shares
|
— | 30 Sep 2025 |
| FMR LLC |
13F
Company
|
9.3%
|
$26,770,261
5,474,491 shares
|
— | 30 Sep 2025 |
| BVF INC/IL |
13F
Company
|
9%
|
$25,926,780
5,302,000 shares
|
— | 30 Sep 2025 |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
Company
|
5.5%
|
$15,919,463
3,255,514 shares
|
— | 30 Sep 2025 |
| RAYMOND JAMES FINANCIAL INC |
13F
Company
|
4.2%
|
$12,041,566
2,462,488 shares
|
— | 30 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
3.8%
|
$11,051,145
2,259,948 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
93
Shares
41,875,144
Rows available
93
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
86
Q4 2025 holders
93
Holder diff
7
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend