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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
2026
Q2 		$1.88M Buy
+6,235
New +$1.88M 0.02% 756
2025
Q3 		– Sell
-19,213
Closed -$6.27M – 1852
2025
Q2 		$6.27M Buy
19,213
+9,123
+90% +$2.52M 0.12% 241
2025
Q1 		$2.72M Buy
+10,090
New +$2.59M 0.07% 359
2024
Q4 		– Sell
-2,556
Closed -$703K – 1466
2024
Q3 		$703K Sell
2,556
-830
-25% -$216K 0.02% 864
2024
Q2 		$823K Sell
3,386
-11,630
-77% -$1.84M 0.02% 790
2024
Q1 		$2.24M Buy
+15,016
New +$2.5M 0.04% 469
2022
Q4 		– Sell
-1,093
Closed -$219K – 1975
2022
Q3 		$219K Sell
1,093
-6,791
-86% -$1.3M 0.01% 1761
2022
Q2 		$1.15M Buy
+7,884
New +$1.12M 0.03% 752
2019
Q2 		– Sell
-12,800
Closed -$982K – 720
2019
Q1 		$1.2M Buy
+12,800
New +$1.07M 0.12% 199
2018
Q2 		– Sell
-2,666
Closed -$264K – 734
2018
Q1 		$318K Sell
2,666
-666
-20% -$85.9K 0.04% 453
2017
Q4 		$423K Buy
+3,332
New +$419K 0.06% 316
2017
Q3 		– Sell
-4,186
Closed -$357K – 595
2017
Q2 		$334K Buy
+4,186
New +$268K 0.07% 369

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.