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Winton Group’s Alnylam Pharmaceuticals ALNY Stock Holding History

Winton Group’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
Q2 		$2.37M Buy
+7,880
New +$2.38M 0.08% 266
2025
Q4 		– Sell
-6,800
Closed -$3.1M – 917
2025
Q3 		$3.1M Buy
6,800
+3,267
+92% +$1.33M 0.12% 229
2025
Q2 		$1.15M Buy
+3,533
New +$978K 0.06% 384
2024
Q2 		– Sell
-1,471
Closed -$220K – 569
2024
Q1 		$220K Buy
+1,471
New +$245K 0.02% 550
2023
Q2 		– Sell
-3,425
Closed -$686K – 769
2023
Q1 		$686K Buy
+3,425
New +$720K 0.04% 572
2022
Q2 		– Sell
-3,046
Closed -$497K – 936
2022
Q1 		$497K Buy
+3,046
New +$464K 0.03% 683
2021
Q4 		– Sell
-2,911
Closed -$550K – 1004
2021
Q3 		$550K Buy
+2,911
New +$546K 0.03% 815
2020
Q4 		– Sell
-8,298
Closed -$1.21M – 1311
2020
Q3 		$1.21M Sell
8,298
-26,472
-76% -$3.76M 0.04% 734
2020
Q2 		$5.15M Buy
34,770
+25,785
+287% +$3.48M 0.13% 200
2020
Q1 		$978K Buy
+8,985
New +$1.04M 0.03% 810
2017
Q4 		– Sell
-90,504
Closed -$10.6M – 662
2017
Q3 		$10.6M Buy
+90,504
New +$7.73M 0.34% 76

Other funds holding ALNY

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 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
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Winton Group's ALNY Position: Q2 2026 in Review

Winton Group opened a new position in Alnylam Pharmaceuticals (ALNY) in Q2 2026: 7,880 shares worth $2.37M. The stake represents 0.08% of the portfolio and ranks #266 among its holdings. This is a return to the name: Winton Group previously reported a position in ALNY as recently as Q3 2025.

Winton Group first reported a position in ALNY in Q3 2017 and has held it in 11 quarters since. The position peaked at $10.6M in Q3 2017. 793 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • Winton Group held 7,880 shares of Alnylam Pharmaceuticals worth $2.37M as of Q2 2026.
  • Alnylam Pharmaceuticals was a new Winton Group position in Q2 2026.
  • Alnylam Pharmaceuticals made up 0.08% of Winton Group's portfolio in Q2 2026, its #266 holding.
  • Winton Group first reported a position in Alnylam Pharmaceuticals in Q3 2017 and has held it in 11 quarters since.
  • Winton Group's Alnylam Pharmaceuticals position peaked at $10.6M in Q3 2017.
  • 793 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.