HighVista Strategies’s Insmed INSM Stock Holding History

HighVista Strategies’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	$3.33M	Buy	31,256 +6,940	+29%	+$840K	0.76%	40
2026 Q1	$3.98M	Sell	24,316 -15,084	-38%	-$2.32M	1.1%	18
2025 Q4	$6.86M	Sell	39,400 -10,549	-21%	-$1.92M	1.77%	12
2025 Q3	$7.19M	Buy	49,949 +38,354	+331%	+$4.7M	1.76%	12
2025 Q2	$1.17M	Sell	11,595 -9,845	-46%	-$753K	0.43%	98
2025 Q1	$1.64M	Sell	21,440 -6,172	-22%	-$472K	0.63%	56
2024 Q4	$1.91M	Sell	27,612 -17,835	-39%	-$1.28M	0.71%	46
2024 Q3	$3.32M	Sell	45,447 -81,333	-64%	-$6M	1.14%	21
2024 Q2	$8.49M	Hold	126,780	–	–	3.1%	2
2024 Q1	$3.44M	Hold	126,780	–	–	1.23%	24
2023 Q4	$3.93M	Buy	126,780 +46,780	+58%	+$1.21M	1.43%	18
2023 Q3	$2.02M	Buy	+80,000	New	+$1.83M	0.93%	30
2020 Q4	–	Sell	-17,635	Closed	-$567K	–	127
2020 Q3	$567K	Buy	17,635 +1,729	+11%	+$49.7K	0.41%	31
2020 Q2	$438K	Buy	+15,906	New	+$377K	0.36%	37

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

HighVista Strategies's INSM Position: Q2 2026 in Review

HighVista Strategies increased its Insmed (INSM) stake by 29% in Q2 2026, buying an estimated $840K and bringing the position to 31,256 shares worth $3.33M. The position accounts for 0.76% of the portfolio, ranked #40.

HighVista Strategies first reported a position in INSM in Q2 2020 and has held it in 14 quarters since. The position peaked at $8.49M in Q2 2024. 666 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

HighVista Strategies held 31,256 shares of Insmed worth $3.33M as of Q2 2026.
HighVista Strategies bought 6,940 Insmed shares in Q2 2026, an estimated $840K.
Insmed made up 0.76% of HighVista Strategies's portfolio in Q2 2026, its #40 holding.
HighVista Strategies first reported a position in Insmed in Q2 2020 and has held it in 14 quarters since.
HighVista Strategies's Insmed position peaked at $8.49M in Q2 2024.
666 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on HighVista Strategies's 13F filing for Q2 2026, filed 14 Aug 2026.