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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
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 $1.16B AUM 67.93% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
EC
Euclidean Capital New York $392M AUM 31.85% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Siren LLC's FHTX Position: Q1 2026 in Review

Siren LLC held its Foghorn Therapeutics (FHTX) position steady in Q1 2026 at 720,720 shares worth $3.45M. The position accounts for 0.1% of the portfolio, ranked #85.

Siren LLC first reported a position in FHTX in Q3 2024 and has held it in 7 quarters since. The position peaked at $6.71M in Q3 2024. 105 funds tracked by Wall St. Rank hold FHTX as of Q1 2026.

  • Siren LLC held 720,720 shares of Foghorn Therapeutics worth $3.45M as of Q1 2026.
  • Siren LLC left its Foghorn Therapeutics share count unchanged in Q1 2026.
  • Foghorn Therapeutics made up 0.1% of Siren LLC's portfolio in Q1 2026, its #85 holding.
  • Siren LLC first reported a position in Foghorn Therapeutics in Q3 2024 and has held it in 7 quarters since.
  • Siren LLC's Foghorn Therapeutics position peaked at $6.71M in Q3 2024.
  • 105 funds tracked by Wall St. Rank held Foghorn Therapeutics as of Q1 2026.

Based on Siren LLC's 13F filing for Q1 2026, filed 14 May 2026.