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Soros Fund Management’s Alnylam Pharmaceuticals ALNY Stock Holding History

Soros 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
2025
Q4 		– Sell
-4,295
Closed -$1.96M – 247
2025
Q3 		$1.96M Buy
+4,295
New +$1.75M 0.03% 167
2025
Q2 		– Sell
-60,000
Closed -$16.2M – 210
2025
Q1 		$16.2M Buy
+60,000
New +$15.4M 0.29% 106
2019
Q3 		– Sell
-40,000
Closed -$2.9M – 176
2019
Q2 		$2.9M Buy
+40,000
New +$3.07M 0.07% 116
2017
Q3 		– Sell
-7,000
Closed -$558K – 231
2017
Q2 		$558K Buy
+7,000
New +$447K 0.02% 125
2016
Q1 		– Sell
-6,000
Closed -$565K – 233
2015
Q4 		$565K Buy
+6,000
New +$556K 0.01% 180
2014
Q2 		– Sell
-3,092
Closed -$208K – 366
2014
Q1 		$208K Buy
+3,092
New +$239K ﹤0.01% 302

Other funds holding ALNY

Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.47T AUM 27.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM