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Semanteon Capital Management’s Alnylam Pharmaceuticals ALNY Stock Holding History

Semanteon Capital Management’s Portfolio ALNY Stock Details ALNY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-1,232
Closed -$562K – 12
2025
Q3 		$562K Buy
+1,232
New +$502K 0.71% 78
2024
Q4 		– Sell
-2,758
Closed -$759K – 233
2024
Q3 		$759K Buy
+2,758
New +$718K 0.52% 103
2024
Q1 		– Sell
-1,609
Closed -$308K – 214
2023
Q4 		$308K Buy
+1,609
New +$274K 0.21% 169

Other funds holding ALNY

Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

Semanteon Capital Management's ALNY Position: Q4 2025 in Review

Semanteon Capital Management sold out of Alnylam Pharmaceuticals (ALNY) in Q4 2025, closing a stake of 1,232 shares — an estimated $562K sold.

Semanteon Capital Management first reported a position in ALNY in Q4 2023 and held it in 3 quarters. The position peaked at $759K in Q3 2024. 851 funds tracked by Wall St. Rank hold ALNY as of Q4 2025.

  • Semanteon Capital Management reported no remaining Alnylam Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Semanteon Capital Management sold 1,232 Alnylam Pharmaceuticals shares in Q4 2025, an estimated $562K.
  • Semanteon Capital Management first reported a position in Alnylam Pharmaceuticals in Q4 2023 and held it in 3 quarters.
  • Semanteon Capital Management's Alnylam Pharmaceuticals position peaked at $759K in Q3 2024.
  • 851 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q4 2025.

Based on Semanteon Capital Management's 13F filing for Q4 2025, filed 10 Feb 2026.