XT
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XTX Topco’s Insmed INSM Stock Holding History

XTX Topco’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 		$762K Sell
4,662
-1,436
-24% -$221K 0.01% 1654
2025
Q4 		$1.06M Buy
+6,098
New +$1.11M 0.03% 987
2025
Q3 		– Sell
-56,380
Closed -$5.67M – 2881
2025
Q2 		$5.67M Buy
56,380
+35,130
+165% +$2.69M 0.24% 58
2025
Q1 		$1.62M Buy
+21,250
New +$1.63M 0.08% 327
2024
Q2 		– Sell
-33,500
Closed -$909K – 2143
2024
Q1 		$909K Buy
+33,500
New +$938K 0.12% 199
2023
Q4 		– Sell
-9,327
Closed -$236K – 1825
2023
Q3 		$236K Buy
+9,327
New +$213K 0.04% 912
2023
Q1 		– Sell
-10,314
Closed -$206K – 1461
2022
Q4 		$206K Buy
+10,314
New +$199K 0.04% 827
2021
Q4 		– Sell
-12,561
Closed -$346K – 835
2021
Q3 		$346K Buy
+12,561
New +$330K 0.12% 302

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

XTX Topco's INSM Position: Q1 2026 in Review

XTX Topco reduced its Insmed (INSM) stake by 24% in Q1 2026, selling an estimated $221K and leaving 4,662 shares worth $762K. The position accounts for 0.01% of the portfolio, ranked #1654.

XTX Topco first reported a position in INSM in Q3 2021 and has held it in 8 quarters since. The position peaked at $5.67M in Q2 2025. 669 funds tracked by Wall St. Rank hold INSM as of Q1 2026.

  • XTX Topco held 4,662 shares of Insmed worth $762K as of Q1 2026.
  • XTX Topco sold 1,436 Insmed shares in Q1 2026, an estimated $221K.
  • Insmed made up 0.01% of XTX Topco's portfolio in Q1 2026, its #1654 holding.
  • XTX Topco first reported a position in Insmed in Q3 2021 and has held it in 8 quarters since.
  • XTX Topco's Insmed position peaked at $5.67M in Q2 2025.
  • 669 funds tracked by Wall St. Rank held Insmed as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.