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Capital International’s Alnylam Pharmaceuticals ALNY Stock Holding History

Capital International’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 		$8.78M Buy
29,166
+88
+0.3% +$26.5K 0.29% 83
2026
Q1 		$9.62M Sell
29,078
-38,589
-57% -$13.1M 0.36% 78
2025
Q4 		$26.9M Sell
67,667
-10,556
-13% -$4.67M 0.95% 30
2025
Q3 		$35.7M Sell
78,223
-4,577
-6% -$1.86M 1.29% 18
2025
Q2 		$27M Buy
82,800
+894
+1% +$247K 1.03% 25
2025
Q1 		$22.1M Buy
81,906
+1,624
+2% +$417K 0.96% 31
2024
Q4 		$18.9M Sell
80,282
-20,141
-20% -$5.3M 0.77% 35
2024
Q3 		$27.6M Buy
100,423
+6,198
+7% +$1.61M 1.19% 23
2024
Q2 		$22.9M Buy
94,225
+29,001
+44% +$4.58M 1.06% 25
2024
Q1 		$9.75M Sell
65,224
-23,161
-26% -$3.86M 0.47% 69
2023
Q4 		$16.9M Sell
88,385
-4,571
-5% -$779K 0.87% 32
2023
Q3 		$16.5M Sell
92,956
-625
-0.7% -$119K 0.95% 28
2023
Q2 		$17.8M Hold
93,581
– – 1% 25
2023
Q1 		$18.7M Buy
93,581
+5,536
+6% +$1.16M 1.12% 21
2022
Q4 		$20.9M Buy
88,045
+20,030
+29% +$4.27M 1.44% 12
2022
Q3 		$13.6M Buy
68,015
+22,023
+48% +$4.2M 0.95% 27
2022
Q2 		$6.71M Buy
45,992
+24,153
+111% +$3.43M 0.5% 64
2022
Q1 		$3.57M Buy
+21,839
New +$3.33M 0.2% 110

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 $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Capital International's ALNY Position: Q2 2026 in Review

Capital International increased its Alnylam Pharmaceuticals (ALNY) stake by 0.3% in Q2 2026, buying an estimated $26.5K and bringing the position to 29,166 shares worth $8.78M. The position accounts for 0.29% of the portfolio, ranked #83.

Capital International first reported a position in ALNY in Q1 2022 and has held it in 18 quarters since. The position peaked at $35.7M in Q3 2025. 790 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • Capital International held 29,166 shares of Alnylam Pharmaceuticals worth $8.78M as of Q2 2026.
  • Capital International bought 88 Alnylam Pharmaceuticals shares in Q2 2026, an estimated $26.5K.
  • Alnylam Pharmaceuticals made up 0.29% of Capital International's portfolio in Q2 2026, its #83 holding.
  • Capital International first reported a position in Alnylam Pharmaceuticals in Q1 2022 and has held it in 18 quarters since.
  • Capital International's Alnylam Pharmaceuticals position peaked at $35.7M in Q3 2025.
  • 790 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on Capital International's 13F filing for Q2 2026, filed 12 Aug 2026.