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Sofinnova Investments’s Alnylam Pharmaceuticals ALNY Stock Holding History

Sofinnova Investments’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
2024
Q3 		– Sell
-50,000
Closed -$12.2M – 63
2024
Q2 		$12.2M Buy
+50,000
New +$7.89M 0.63% 40
2023
Q1 		– Sell
-100,000
Closed -$23.8M – 55
2022
Q4 		$23.8M Buy
+100,000
New +$21.3M 1.41% 18
2020
Q3 		– Sell
-150,000
Closed -$22.2M – 70
2020
Q2 		$22.2M Buy
150,000
+122,900
+454% +$16.6M 1.4% 19
2020
Q1 		$2.95M Sell
27,100
-72,900
-73% -$8.41M 0.27% 47
2019
Q4 		$11.5M Buy
+100,000
New +$9.97M 0.83% 26

Other funds holding ALNY

Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
RP
Regeneron Pharmaceuticals Tarrytown, New York $47.9M AUM 29.29% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Sofinnova Investments's ALNY Position: Q2 2025 in Review

Sofinnova Investments sold out of Alnylam Pharmaceuticals (ALNY) in Q2 2025, closing a stake of 176,181 shares — an estimated $47.6M sold.

Sofinnova Investments first reported a position in ALNY in Q1 2019 and held it in 8 quarters. The position peaked at $47.6M in Q1 2025. 653 funds tracked by Wall St. Rank hold ALNY as of Q2 2025.

  • Sofinnova Investments reported no remaining Alnylam Pharmaceuticals position as of Q2 2025 after selling out during the quarter.
  • Sofinnova Investments sold 176,181 Alnylam Pharmaceuticals shares in Q2 2025, an estimated $47.6M.
  • Sofinnova Investments first reported a position in Alnylam Pharmaceuticals in Q1 2019 and held it in 8 quarters.
  • Sofinnova Investments's Alnylam Pharmaceuticals position peaked at $47.6M in Q1 2025.
  • 653 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2025.

Based on Sofinnova Investments's 13F filing for Q2 2025, filed 14 Aug 2025.