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Siren LLC’s Foghorn Therapeutics FHTX Stock Holding History

Siren LLC’s Portfolio FHTX Stock Details FHTX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.52M Hold
720,720
– – 0.07% 99
2026
Q1 		$3.45M Hold
720,720
– – 0.1% 85
2025
Q4 		$3.89M Hold
720,720
– – 0.12% 87
2025
Q3 		$3.52M Hold
720,720
– – 0.14% 76
2025
Q2 		$3.39M Hold
720,720
– – 0.18% 74
2025
Q1 		$2.63M Hold
720,720
– – 0.15% 75
2024
Q4 		$3.4M Hold
720,720
– – 0.15% 76
2024
Q3 		$6.71M Buy
+720,720
New +$5.22M 0.34% 57

Other funds holding FHTX

FP
Flagship Pioneering Cambridge, Massachusetts $1.54B AUM 86.39% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
DM
Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
EC
Euclidean Capital New York $440M AUM 28.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Siren LLC's FHTX Position: Q2 2026 in Review

Siren LLC held its Foghorn Therapeutics (FHTX) position steady in Q2 2026 at 720,720 shares worth $3.52M. The position accounts for 0.07% of the portfolio, ranked #99.

Siren LLC first reported a position in FHTX in Q3 2024 and has held it in 8 quarters since. The position peaked at $6.71M in Q3 2024. 103 funds tracked by Wall St. Rank hold FHTX as of Q2 2026.

  • Siren LLC held 720,720 shares of Foghorn Therapeutics worth $3.52M as of Q2 2026.
  • Siren LLC left its Foghorn Therapeutics share count unchanged in Q2 2026.
  • Foghorn Therapeutics made up 0.07% of Siren LLC's portfolio in Q2 2026, its #99 holding.
  • Siren LLC first reported a position in Foghorn Therapeutics in Q3 2024 and has held it in 8 quarters since.
  • Siren LLC's Foghorn Therapeutics position peaked at $6.71M in Q3 2024.
  • 103 funds tracked by Wall St. Rank held Foghorn Therapeutics as of Q2 2026.

Based on Siren LLC's 13F filing for Q2 2026, filed 13 Aug 2026.