SG Americas Securities
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SG Americas Securities’s Alnylam Pharmaceuticals ALNY Stock Holding History

SG Americas Securities’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 		$7.5M Sell
24,911
-30,149
-55% -$9.09M ﹤0.01% 942
2026
Q1 		$18.2M Sell
55,060
-35,861
-39% -$12.2M 0.02% 578
2025
Q4 		$36.2M Buy
90,921
+59,071
+185% +$26.1M 0.05% 297
2025
Q3 		$14.5M Buy
+31,850
New +$13M 0.05% 251
2025
Q2 		– Sell
-132,960
Closed -$35.9M – 2903
2025
Q1 		$35.9M Buy
132,960
+131,293
+7,876% +$33.7M 0.12% 120
2024
Q4 		$392K Sell
1,667
-1,723
-51% -$453K ﹤0.01% 1557
2024
Q3 		$932K Buy
3,390
+2,953
+676% +$769K ﹤0.01% 1134
2024
Q2 		$106K Sell
437
-38,318
-99% -$6.05M ﹤0.01% 2518
2024
Q1 		$5.79M Buy
38,755
+38,095
+5,772% +$6.35M 0.03% 500
2023
Q4 		$126K Sell
660
-19,176
-97% -$3.27M ﹤0.01% 2558
2023
Q3 		$3.51M Buy
19,836
+16,025
+420% +$3.06M 0.04% 430
2023
Q2 		$724K Sell
3,811
-7,883
-67% -$1.56M 0.01% 1220
2023
Q1 		$2.34M Buy
11,694
+4,900
+72% +$1.03M 0.03% 580
2022
Q4 		$1.61M Buy
6,794
+5,575
+457% +$1.19M 0.02% 658
2022
Q3 		$244K Sell
1,219
-12,730
-91% -$2.43M ﹤0.01% 2156
2022
Q2 		$2.03M Sell
13,949
-14,065
-50% -$2M 0.02% 739
2022
Q1 		$4.57M Buy
28,014
+19,168
+217% +$2.92M 0.03% 459
2021
Q4 		$1.5M Sell
8,846
-2,041
-19% -$379K 0.01% 1330
2021
Q3 		$2.06M Sell
10,887
-8,185
-43% -$1.54M 0.01% 1250
2021
Q2 		$3.23M Buy
19,072
+16,386
+610% +$2.4M 0.02% 826
2021
Q1 		$379K Buy
2,686
+401
+18% +$60.3K ﹤0.01% 2204
2020
Q4 		$297K Sell
2,285
-919
-29% -$123K ﹤0.01% 2373
2020
Q3 		$467K Sell
3,204
-10,553
-77% -$1.5M ﹤0.01% 1676
2020
Q2 		$2.04M Buy
13,757
+10,015
+268% +$1.35M 0.02% 823
2020
Q1 		$407K Buy
3,742
+499
+15% +$57.6K ﹤0.01% 2002
2019
Q4 		$373K Buy
3,243
+1,470
+83% +$147K ﹤0.01% 2009
2019
Q3 		$143K Buy
+1,773
New +$140K ﹤0.01% 2535
2019
Q2 		– Sell
-133,828
Closed -$12.5M – 3047
2019
Q1 		$12.5M Buy
133,828
+114,143
+580% +$9.55M 0.12% 181
2018
Q4 		$1.44M Buy
19,685
+10,255
+109% +$789K 0.01% 1091
2018
Q3 		$825K Buy
9,430
+4,652
+97% +$468K 0.01% 1824
2018
Q2 		$471K Sell
4,778
-18,108
-79% -$1.8M ﹤0.01% 2048
2018
Q1 		$2.73M Buy
+22,886
New +$2.95M 0.02% 697
2017
Q4 		– Sell
-1,538
Closed -$181K – 3159
2017
Q3 		$181K Sell
1,538
-105,643
-99% -$9.02M ﹤0.01% 2665
2017
Q2 		$8.55M Buy
+107,181
New +$6.85M 0.08% 249
2017
Q1 		– Sell
-22,683
Closed -$849K – 3256
2016
Q4 		$849K Buy
+22,683
New +$950K 0.01% 1400
2016
Q3 		– Sell
-6,353
Closed -$353K – 3315
2016
Q2 		$353K Buy
6,353
+1,510
+31% +$95.1K ﹤0.01% 1869
2016
Q1 		$304K Buy
4,843
+993
+26% +$66K ﹤0.01% 1989
2015
Q4 		$362K Sell
3,850
-2,439
-39% -$226K ﹤0.01% 1806
2015
Q3 		$505K Sell
6,289
-8,225
-57% -$914K ﹤0.01% 1066
2015
Q2 		$1.74M Buy
14,514
+10,165
+234% +$1.21M 0.01% 781
2015
Q1 		$454K Sell
4,349
-12,497
-74% -$1.27M ﹤0.01% 1489
2014
Q4 		$1.63M Buy
+16,846
New +$1.56M 0.01% 1034
2014
Q2 		– Sell
-7,836
Closed -$526K – 2501
2014
Q1 		$526K Buy
+7,836
New +$607K ﹤0.01% 1448
2013
Q4 		– Sell
-10,971
Closed -$702K – 2636
2013
Q3 		$702K Buy
+10,971
New +$547K ﹤0.01% 1435

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

SG Americas Securities's ALNY Position: Q2 2026 in Review

SG Americas Securities reduced its Alnylam Pharmaceuticals (ALNY) stake by 55% in Q2 2026, selling an estimated $9.09M and leaving 24,911 shares worth $7.5M. The position accounts for ﹤0.01% of the portfolio, ranked #942.

SG Americas Securities first reported a position in ALNY in Q3 2013 and has held it in 44 quarters since. The position peaked at $36.2M in Q4 2025. 784 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • SG Americas Securities held 24,911 shares of Alnylam Pharmaceuticals worth $7.5M as of Q2 2026.
  • SG Americas Securities sold 30,149 Alnylam Pharmaceuticals shares in Q2 2026, an estimated $9.09M.
  • Alnylam Pharmaceuticals made up ﹤0.01% of SG Americas Securities's portfolio in Q2 2026, its #942 holding.
  • SG Americas Securities first reported a position in Alnylam Pharmaceuticals in Q3 2013 and has held it in 44 quarters since.
  • SG Americas Securities's Alnylam Pharmaceuticals position peaked at $36.2M in Q4 2025.
  • 784 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on SG Americas Securities's 13F filing for Q2 2026, filed 7 Aug 2026.