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West Family Investments’s Alnylam Pharmaceuticals ALNY Stock Holding History

West Family Investments’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 		$231K Buy
+767
New +$231K 0.07% 404
2026
Q1 		– Sell
-646
Closed -$257K – 263
2025
Q4 		$257K Sell
646
-176
-21% -$77.9K 0.06% 282
2025
Q3 		$375K Hold
822
– – 0.08% 237
2025
Q2 		$268K Buy
+822
New +$227K 0.07% 274

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

West Family Investments's ALNY Position: Q2 2026 in Review

West Family Investments opened a new position in Alnylam Pharmaceuticals (ALNY) in Q2 2026: 767 shares worth $231K. The stake represents 0.07% of the portfolio and ranks #404 among its holdings. This is a return to the name: West Family Investments previously reported a position in ALNY as recently as Q4 2025.

West Family Investments first reported a position in ALNY in Q2 2025 and has held it in 4 quarters since. The position peaked at $375K in Q3 2025. 793 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • West Family Investments held 767 shares of Alnylam Pharmaceuticals worth $231K as of Q2 2026.
  • Alnylam Pharmaceuticals was a new West Family Investments position in Q2 2026.
  • Alnylam Pharmaceuticals made up 0.07% of West Family Investments's portfolio in Q2 2026, its #404 holding.
  • West Family Investments first reported a position in Alnylam Pharmaceuticals in Q2 2025 and has held it in 4 quarters since.
  • West Family Investments's Alnylam Pharmaceuticals position peaked at $375K in Q3 2025.
  • 793 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on West Family Investments's 13F filing for Q2 2026, filed 10 Aug 2026.