Adage Capital Partners
INSM icon

Adage Capital Partners’s Insmed INSM Stock Holding History

Adage Capital Partners’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 		$90.6M Sell
850,000
-50,000
-6% -$6.05M 0.13% 153
2026
Q1 		$147M Buy
900,000
+600,000
+200% +$92.2M 0.23% 86
2025
Q4 		$52.2M Sell
300,000
-952,503
-76% -$174M 0.08% 245
2025
Q3 		$180M Sell
1,252,503
-1,606,949
-56% -$197M 0.29% 56
2025
Q2 		$288M Sell
2,859,452
-587,492
-17% -$44.9M 0.48% 31
2025
Q1 		$263M Buy
3,446,944
+1,799,382
+109% +$138M 0.49% 30
2024
Q4 		$114M Buy
1,647,562
+615,000
+60% +$44.3M 0.2% 94
2024
Q3 		$75.4M Sell
1,032,562
-292,438
-22% -$21.6M 0.13% 155
2024
Q2 		$88.8M Buy
1,325,000
+1,075,000
+430% +$41.7M 0.16% 126
2024
Q1 		$6.78M Sell
250,000
-350,000
-58% -$9.8M 0.01% 663
2023
Q4 		$18.6M Hold
600,000
– – 0.04% 441
2023
Q3 		$15.2M Buy
+600,000
New +$13.7M 0.03% 472
2022
Q4 		– Sell
-475,000
Closed -$10.2M – 1011
2022
Q3 		$10.2M Buy
475,000
+103,500
+28% +$2.48M 0.03% 630
2022
Q2 		$7.33M Buy
+371,500
New +$7.78M 0.02% 751
2019
Q3 		– Sell
-199,000
Closed -$5.09M – 739
2019
Q2 		$5.09M Sell
199,000
-247,000
-55% -$6.88M 0.01% 609
2019
Q1 		$13M Sell
446,000
-226,000
-34% -$5.86M 0.03% 478
2018
Q4 		$8.82M Sell
672,000
-578,000
-46% -$9.22M 0.02% 532
2018
Q3 		$25.3M Hold
1,250,000
– – 0.06% 355
2018
Q2 		$29.6M Buy
1,250,000
+360,000
+40% +$9.27M 0.07% 316
2018
Q1 		$20M Buy
890,000
+169,966
+24% +$4.47M 0.05% 394
2017
Q4 		$22.5M Buy
+720,034
New +$21.3M 0.05% 379

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

Adage Capital Partners's INSM Position: Q2 2026 in Review

Adage Capital Partners reduced its Insmed (INSM) stake by 5.6% in Q2 2026, selling an estimated $6.05M and leaving 850,000 shares worth $90.6M. The position accounts for 0.13% of the portfolio, ranked #153.

Adage Capital Partners first reported a position in INSM in Q4 2017 and has held it in 21 quarters since. The position peaked at $288M in Q2 2025. 666 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Adage Capital Partners held 850,000 shares of Insmed worth $90.6M as of Q2 2026.
  • Adage Capital Partners sold 50,000 Insmed shares in Q2 2026, an estimated $6.05M.
  • Insmed made up 0.13% of Adage Capital Partners's portfolio in Q2 2026, its #153 holding.
  • Adage Capital Partners first reported a position in Insmed in Q4 2017 and has held it in 21 quarters since.
  • Adage Capital Partners's Insmed position peaked at $288M in Q2 2025.
  • 666 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Adage Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.