Alyeska Investment Group
INSM icon

Alyeska Investment Group’s Insmed INSM Stock Holding History

Alyeska Investment Group’s Portfolio INSM Stock Details INSM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$20.3M Buy
190,264
+142,142
+295% +$17.2M 0.05% 332
2026
Q1 		$7.87M Sell
48,122
-11,878
-20% -$1.83M 0.02% 427
2025
Q4 		$10.4M Buy
+60,000
New +$10.9M 0.03% 382
2025
Q3 		– Sell
-603,702
Closed -$60.8M – 649
2025
Q2 		$60.8M Sell
603,702
-131,298
-18% -$10M 0.21% 135
2025
Q1 		$56.1M Sell
735,000
-200,779
-21% -$15.4M 0.22% 131
2024
Q4 		$64.6M Buy
935,779
+188,377
+25% +$13.6M 0.24% 106
2024
Q3 		$54.6M Buy
747,402
+318,598
+74% +$23.5M 0.28% 133
2024
Q2 		$28.7M Buy
428,804
+228,804
+114% +$8.87M 0.16% 172
2024
Q1 		$5.43M Buy
+200,000
New +$5.6M 0.03% 322
2023
Q3 		– Sell
-127,484
Closed -$2.69M – 554
2023
Q2 		$2.69M Sell
127,484
-72,516
-36% -$1.38M 0.02% 389
2023
Q1 		$3.41M Buy
200,000
+50,000
+33% +$971K 0.03% 325
2022
Q4 		$3M Buy
+150,000
New +$2.9M 0.03% 295
2020
Q1 		– Sell
-143,765
Closed -$3.43M – 419
2019
Q4 		$3.43M Sell
143,765
-124,654
-46% -$2.54M 0.05% 251
2019
Q3 		$4.74M Buy
268,419
+72,634
+37% +$1.4M 0.07% 234
2019
Q2 		$5.01M Buy
+195,785
New +$5.45M 0.06% 234
2018
Q3 		– Sell
-386,372
Closed -$9.14M – 455
2018
Q2 		$9.14M Sell
386,372
-37,645
-9% -$969K 0.08% 220
2018
Q1 		$9.55M Buy
424,017
+110,480
+35% +$2.91M 0.08% 234
2017
Q4 		$9.78M Buy
313,537
+18,439
+6% +$545K 0.08% 213
2017
Q3 		$9.21M Buy
+295,098
New +$5.62M 0.07% 251
2017
Q2 		– Sell
-89,786
Closed -$1.57M – 501
2017
Q1 		$1.57M Sell
89,786
-102,234
-53% -$1.58M 0.01% 411
2016
Q4 		$2.54M Buy
+192,020
New +$2.62M 0.02% 378
2015
Q2 		– Sell
-115,000
Closed -$2.39M – 529
2015
Q1 		$2.39M Buy
+115,000
New +$2.03M 0.03% 352

Other funds holding INSM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
DGM
Darwin Global Management St. Helier, Jersey $3.76B AUM 342.13% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 1-Year Est. Return

Alyeska Investment Group's INSM Position: Q2 2026 in Review

Alyeska Investment Group increased its Insmed (INSM) stake by 295% in Q2 2026, buying an estimated $17.2M and bringing the position to 190,264 shares worth $20.3M. The position accounts for 0.05% of the portfolio, ranked #332.

Alyeska Investment Group first reported a position in INSM in Q1 2015 and has held it in 22 quarters since. The position peaked at $64.6M in Q4 2024. 663 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Alyeska Investment Group held 190,264 shares of Insmed worth $20.3M as of Q2 2026.
  • Alyeska Investment Group bought 142,142 Insmed shares in Q2 2026, an estimated $17.2M.
  • Insmed made up 0.05% of Alyeska Investment Group's portfolio in Q2 2026, its #332 holding.
  • Alyeska Investment Group first reported a position in Insmed in Q1 2015 and has held it in 22 quarters since.
  • Alyeska Investment Group's Insmed position peaked at $64.6M in Q4 2024.
  • 663 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Alyeska Investment Group's 13F filing for Q2 2026, filed 14 Aug 2026.