Dark Forest Capital Management’s Alnylam Pharmaceuticals ALNY Stock Holding History

Dark Forest Capital 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	$275K	Sell	912 -12,795	-93%	-$3.86M	0.02%	743
2026 Q1	$4.54M	Buy	13,707 +6,992	+104%	+$2.38M	0.4%	45
2025 Q4	$2.67M	Sell	6,715 -4,883	-42%	-$2.16M	0.12%	283
2025 Q3	$5.29M	Buy	+11,598	New	+$4.72M	0.2%	109
2025 Q2	–	Sell	-5,153	Closed	-$1.39M	–	1161
2025 Q1	$1.39M	Buy	+5,153	New	+$1.32M	0.06%	527
2022 Q4	–	Sell	-2	Closed	–	–	1123
2022 Q3	$0	Buy	+2	New	+$381	﹤0.01%	1107
2022 Q2	–	Sell	-16	Closed	-$3K	–	872
2022 Q1	$3K	Sell	16 -39	-71%	-$5.94K	﹤0.01%	1143
2021 Q4	$9K	Buy	+55	New	+$10.2K	﹤0.01%	954

Other funds holding ALNY

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Dark Forest Capital Management's ALNY Position: Q2 2026 in Review

Dark Forest Capital Management reduced its Alnylam Pharmaceuticals (ALNY) stake by 93% in Q2 2026, selling an estimated $3.86M and leaving 912 shares worth $275K. The position accounts for 0.02% of the portfolio, ranked #743.

Dark Forest Capital Management first reported a position in ALNY in Q4 2021 and has held it in 8 quarters since. The position peaked at $5.29M in Q3 2025. 788 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

Dark Forest Capital Management held 912 shares of Alnylam Pharmaceuticals worth $275K as of Q2 2026.
Dark Forest Capital Management sold 12,795 Alnylam Pharmaceuticals shares in Q2 2026, an estimated $3.86M.
Alnylam Pharmaceuticals made up 0.02% of Dark Forest Capital Management's portfolio in Q2 2026, its #743 holding.
Dark Forest Capital Management first reported a position in Alnylam Pharmaceuticals in Q4 2021 and has held it in 8 quarters since.
Dark Forest Capital Management's Alnylam Pharmaceuticals position peaked at $5.29M in Q3 2025.
788 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on Dark Forest Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.