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Boothbay Fund Management’s Alnylam Pharmaceuticals ALNY Stock Holding History

Boothbay Fund 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
2024
Q3 		– Sell
-55,400
Closed -$13.5M – 1588
2024
Q2 		$13.5M Buy
55,400
+21,400
+63% +$3.38M 0.32% 42
2024
Q1 		$5.08M Sell
34,000
-5,700
-14% -$951K 0.1% 221
2023
Q4 		$7.6M Buy
+39,700
New +$6.76M 0.19% 102
2022
Q4 		– Sell
-34,800
Closed -$6.97M – 1974
2022
Q3 		$6.97M Sell
34,800
-1,500
-4% -$286K 0.17% 100
2022
Q2 		$5.29M Buy
36,300
+20,500
+130% +$2.91M 0.14% 165
2022
Q1 		$2.58M Sell
15,800
-3,900
-20% -$594K 0.06% 468
2021
Q4 		$3.34M Buy
19,700
+1,900
+11% +$353K 0.08% 308
2021
Q3 		$3.36M Sell
17,800
-4,200
-19% -$788K 0.09% 261
2021
Q2 		$3.73M Buy
+22,000
New +$3.22M 0.12% 189
2020
Q2 		– Sell
-310
Closed -$3.37M – 946
2020
Q1 		$3.37M Buy
+310
New +$35.8K 0.28% 83
2019
Q4 		– Sell
-192
Closed -$1.54M – 835
2019
Q3 		$1.54M Buy
+192
New +$15.2K 0.14% 201
2018
Q4 		– Sell
-115
Closed -$1.01M – 647
2018
Q3 		$1.01M Buy
+115
New +$11.6K 0.1% 208
2017
Q4 		– Sell
-25
Closed -$294K – 701
2017
Q3 		$294K Buy
+25
New +$2.13K 0.05% 379

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

Boothbay Fund Management's ALNY Position: Q2 2026 in Review

Boothbay Fund Management opened a new position in Alnylam Pharmaceuticals (ALNY) in Q2 2026: 6,235 shares worth $1.88M. The stake represents 0.02% of the portfolio and ranks #756 among its holdings. This is a return to the name: Boothbay Fund Management previously reported a position in ALNY as recently as Q2 2025.

Boothbay Fund Management first reported a position in ALNY in Q2 2017 and has held it in 12 quarters since. The position peaked at $6.27M in Q2 2025. 793 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • Boothbay Fund Management held 6,235 shares of Alnylam Pharmaceuticals worth $1.88M as of Q2 2026.
  • Alnylam Pharmaceuticals was a new Boothbay Fund Management position in Q2 2026.
  • Alnylam Pharmaceuticals made up 0.02% of Boothbay Fund Management's portfolio in Q2 2026, its #756 holding.
  • Boothbay Fund Management first reported a position in Alnylam Pharmaceuticals in Q2 2017 and has held it in 12 quarters since.
  • Boothbay Fund Management's Alnylam Pharmaceuticals position peaked at $6.27M in Q2 2025.
  • 793 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on Boothbay Fund Management's 13F filing for Q2 2026, filed 14 Aug 2026.