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Samlyn Capital’s Insmed INSM Stock Holding History

Samlyn Capital’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
Q1 		$68.2M Buy
417,205
+47,630
+13% +$7.32M 1.16% 29
2025
Q4 		$64.3M Buy
369,575
+76,932
+26% +$14M 1.02% 28
2025
Q3 		$42.1M Buy
+292,643
New +$35.9M 0.58% 51
2025
Q1 		– Sell
-159,064
Closed -$11M – 99
2024
Q4 		$11M Sell
159,064
-52,434
-25% -$3.78M 0.17% 86
2024
Q3 		$15.4M Sell
211,498
-147,756
-41% -$10.9M 0.23% 77
2024
Q2 		$24.1M Sell
359,254
-228,380
-39% -$8.86M 0.4% 68
2024
Q1 		$15.9M Sell
587,634
-699,234
-54% -$19.6M 0.27% 82
2023
Q4 		$39.9M Sell
1,286,868
-94,189
-7% -$2.44M 0.79% 40
2023
Q3 		$34.9M Sell
1,381,057
-596,233
-30% -$13.6M 0.57% 58
2023
Q2 		$41.7M Sell
1,977,290
-266
-0% -$5.05K 0.71% 47
2023
Q1 		$33.7M Buy
1,977,556
+39,261
+2% +$763K 0.61% 49
2022
Q4 		$38.7M Buy
1,938,295
+751,428
+63% +$14.5M 0.76% 46
2022
Q3 		$25.6M Buy
1,186,867
+68,194
+6% +$1.64M 0.48% 56
2022
Q2 		$22.1M Buy
1,118,673
+51,912
+5% +$1.09M 0.44% 56
2022
Q1 		$25.1M Sell
1,066,761
-240,231
-18% -$5.58M 0.36% 67
2021
Q4 		$35.6M Buy
1,306,992
+43,589
+3% +$1.25M 0.49% 53
2021
Q3 		$34.8M Buy
1,263,403
+52,689
+4% +$1.38M 0.47% 60
2021
Q2 		$34.5M Buy
1,210,714
+652,579
+117% +$19.4M 0.51% 54
2021
Q1 		$19M Sell
558,135
-132,276
-19% -$5.06M 0.26% 76
2020
Q4 		$23M Buy
+690,411
New +$25.2M 0.33% 71

Other funds holding INSM

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DGM
Darwin Global Management St. Helier, Jersey $3.77B AUM 307.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Samlyn Capital's INSM Position: Q1 2026 in Review

Samlyn Capital increased its Insmed (INSM) stake by 13% in Q1 2026, buying an estimated $7.32M and bringing the position to 417,205 shares worth $68.2M. The position accounts for 1.16% of the portfolio, ranked #29.

Samlyn Capital first reported a position in INSM in Q4 2020 and has held it in 20 quarters since. 669 funds tracked by Wall St. Rank hold INSM as of Q1 2026.

  • Samlyn Capital held 417,205 shares of Insmed worth $68.2M as of Q1 2026.
  • Samlyn Capital bought 47,630 Insmed shares in Q1 2026, an estimated $7.32M.
  • Insmed made up 1.16% of Samlyn Capital's portfolio in Q1 2026, its #29 holding.
  • Samlyn Capital first reported a position in Insmed in Q4 2020 and has held it in 20 quarters since.
  • 669 funds tracked by Wall St. Rank held Insmed as of Q1 2026.

Based on Samlyn Capital's 13F filing for Q1 2026, filed 15 May 2026.