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Siren LLC’s Apogee Therapeutics APGE Stock Holding History

Siren LLC’s Portfolio APGE Stock Details APGE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-594,994
Closed -$25.8M – 117
2025
Q2 		$25.8M Hold
594,994
– – 1.34% 21
2025
Q1 		$22.2M Sell
594,994
-152,331
-20% -$5.89M 1.25% 22
2024
Q4 		$33.9M Buy
+747,325
New +$38.1M 1.5% 18

Other funds holding APGE

VA
VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.38B AUM 407.79% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return

Siren LLC's APGE Position: Q3 2025 in Review

Siren LLC sold out of Apogee Therapeutics (APGE) in Q3 2025, closing a stake of 594,994 shares — an estimated $25.8M sold.

Siren LLC first reported a position in APGE in Q4 2024 and held it in 3 quarters. The position peaked at $33.9M in Q4 2024. 174 funds tracked by Wall St. Rank hold APGE as of Q3 2025.

  • Siren LLC reported no remaining Apogee Therapeutics position as of Q3 2025 after selling out during the quarter.
  • Siren LLC sold 594,994 Apogee Therapeutics shares in Q3 2025, an estimated $25.8M.
  • Siren LLC first reported a position in Apogee Therapeutics in Q4 2024 and held it in 3 quarters.
  • Siren LLC's Apogee Therapeutics position peaked at $33.9M in Q4 2024.
  • 174 funds tracked by Wall St. Rank held Apogee Therapeutics as of Q3 2025.

Based on Siren LLC's 13F filing for Q3 2025, filed 13 Nov 2025.