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Caption Management’s Alnylam Pharmaceuticals ALNY Stock Holding History

Caption 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
2026
Q1 		– Sell
-15,000
Closed -$5.96M – 1511
2025
Q4 		$5.96M Sell
15,000
-15,000
-50% -$6.64M 0.04% 462
2025
Q3 		$13.7M Hold
30,000
– – 0.11% 202
2025
Q2 		$9.78M Buy
+30,000
New +$8.3M 0.11% 212
2025
Q1 		– Sell
-20,000
Closed -$4.71M – 1468
2024
Q4 		$4.71M Sell
20,000
-4,900
-20% -$1.29M 0.04% 387
2024
Q3 		$6.85M Sell
24,900
-464,700
-95% -$121M 0.11% 224
2024
Q2 		$119M Buy
489,600
+378,300
+340% +$59.7M 1.83% 3
2024
Q1 		$16.6M Sell
111,300
-20,000
-15% -$3.34M 0.25% 97
2023
Q4 		$25.1M Buy
131,300
+34,700
+36% +$5.91M 0.34% 59
2023
Q3 		$17.1M Sell
96,600
-11,400
-11% -$2.18M 0.26% 84
2023
Q2 		$20.5M Buy
108,000
+83,000
+332% +$16.5M 0.36% 61
2023
Q1 		$5.01M Hold
25,000
– – 0.1% 236
2022
Q4 		$5.94M Sell
25,000
-2,000
-7% -$427K 0.09% 264
2022
Q3 		$5.41M Sell
27,000
-502,000
-95% -$95.8M 0.07% 318
2022
Q2 		$77.2M Buy
529,000
+499,000
+1,663% +$70.8M 1.06% 5
2022
Q1 		$4.9M Sell
30,000
-60,000
-67% -$9.14M 0.06% 430
2021
Q4 		$15.3M Buy
90,000
+60,000
+200% +$11.2M 0.17% 147
2021
Q3 		$5.66M Sell
30,000
-143,600
-83% -$26.9M 0.06% 403
2021
Q2 		$29.4M Buy
173,600
+143,600
+479% +$21M 0.38% 42
2021
Q1 		$4.24M Hold
30,000
– – 0.09% 290
2020
Q4 		$3.9M Buy
30,000
+10,000
+50% +$1.34M 0.09% 280
2020
Q3 		$2.91M Buy
+20,000
New +$2.84M 0.07% 329
2019
Q3 		– Sell
-69,500
Closed -$5.04M – 688
2019
Q2 		$5.04M Buy
+69,500
New +$5.33M 0.25% 114
2018
Q4 		– Sell
-30,000
Closed -$2.63M – 458
2018
Q3 		$2.63M Buy
+30,000
New +$3.02M 0.14% 188

Other funds holding ALNY

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 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
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Caption Management's ALNY Position: Q4 2024 in Review

Caption Management sold out of Alnylam Pharmaceuticals (ALNY) in Q4 2024, closing a stake of 8,405 shares — an estimated $2.21M sold.

Caption Management first reported a position in ALNY in Q3 2018 and held it in 13 quarters. The position peaked at $41.4M in Q2 2024. 593 funds tracked by Wall St. Rank hold ALNY as of Q4 2024.

  • Caption Management reported no remaining Alnylam Pharmaceuticals position as of Q4 2024 after selling out during the quarter.
  • Caption Management sold 8,405 Alnylam Pharmaceuticals shares in Q4 2024, an estimated $2.21M.
  • Caption Management first reported a position in Alnylam Pharmaceuticals in Q3 2018 and held it in 13 quarters.
  • Caption Management's Alnylam Pharmaceuticals position peaked at $41.4M in Q2 2024.
  • 593 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q4 2024.

Based on Caption Management's 13F filing for Q4 2024, filed 14 Feb 2025.