FHTX — Foghorn Therapeutics Inc.

Ownership history in Siren, L.L.C.  ·  6 quarters on record

This page tracks every 13F SEC filing in which Siren, L.L.C. reported a position in Foghorn Therapeutics Inc. (FHTX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.34% (2024 Q3)
Avg. % of fund
0.18%
First filed
2024 Q3
Last filed
2025 Q4
Quarters held
6
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 UNCHANGED 720,720 — 0% 0.12% $3.9M $5.40
2025 Q3 UNCHANGED 720,720 — 0% 0.14% $3.5M $4.89
2025 Q2 UNCHANGED 720,720 — 0% 0.18% $3.4M $4.70
2025 Q1 UNCHANGED 720,720 — 0% 0.15% $2.6M $3.65
2 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    FHTX price (monthly, adj. close)

Other funds also holding FHTX

As of 2025 Q4 — sorted by position size

Flagship Pioneering, LLC 3Y 7Y 21.12% Euclidean Capital LLC 3Y 2.3% BVF INC/IL 3Y 7Y 0.96% Birchview Capital, LP 3Y 7Y 0.89% DEERFIELD MANAGEMENT COMPANY, L.P. 3Y 7Y 0.25% DAFNA Capital Management LLC 3Y 7Y 0.16% Brummer Multi-Strategy AB 0.15% Persistent Asset Partners Ltd 0.11% Sio Capital Management, LLC 3Y 7Y 0.1% BRIDGEWAY CAPITAL MANAGEMENT, LLC 3Y 7Y 0.01%
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