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 Q2	$6.36M	Buy	59,663 +55,001	+1,180%	+$6.66M	0.08%	274
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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

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 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 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

XTX Topco's INSM Position: Q2 2026 in Review

XTX Topco increased its Insmed (INSM) stake by 1,180% in Q2 2026, buying an estimated $6.66M and bringing the position to 59,663 shares worth $6.36M. The position accounts for 0.08% of the portfolio, ranked #274.

XTX Topco first reported a position in INSM in Q3 2021 and has held it in 9 quarters since. 665 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

XTX Topco held 59,663 shares of Insmed worth $6.36M as of Q2 2026.
XTX Topco bought 55,001 Insmed shares in Q2 2026, an estimated $6.66M.
Insmed made up 0.08% of XTX Topco's portfolio in Q2 2026, its #274 holding.
XTX Topco first reported a position in Insmed in Q3 2021 and has held it in 9 quarters since.
665 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.