Fred Alger Management’s Insmed INSM Stock Holding History

Fred Alger Management’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	$8.78M	Sell	82,325 -43,441	-35%	-$5.26M	0.03%	187
2026 Q1	$20.6M	Buy	125,766 +44,455	+55%	+$6.83M	0.09%	111
2025 Q4	$14.2M	Sell	81,311 -12,722	-14%	-$2.32M	0.06%	145
2025 Q3	$13.5M	Sell	94,033 -95,686	-50%	-$11.7M	0.05%	159
2025 Q2	$19.1M	Sell	189,719 -188,612	-50%	-$14.4M	0.09%	123
2025 Q1	$28.9M	Sell	378,331 -7,129	-2%	-$545K	0.16%	85
2024 Q4	$26.6M	Sell	385,460 -66,856	-15%	-$4.81M	0.13%	110
2024 Q3	$33M	Sell	452,316 -46,256	-9%	-$3.41M	0.16%	100
2024 Q2	$33.4M	Buy	+498,572	New	+$19.3M	0.16%	96
2019 Q3	–	Sell	-13,000	Closed	-$333K	–	517
2019 Q2	$333K	Buy	+13,000	New	+$362K	﹤0.01%	393

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

Fred Alger Management's INSM Position: Q2 2026 in Review

Fred Alger Management reduced its Insmed (INSM) stake by 35% in Q2 2026, selling an estimated $5.26M and leaving 82,325 shares worth $8.78M. The position accounts for 0.03% of the portfolio, ranked #187.

Fred Alger Management first reported a position in INSM in Q2 2019 and has held it in 10 quarters since. The position peaked at $33.4M in Q2 2024. 666 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

Fred Alger Management held 82,325 shares of Insmed worth $8.78M as of Q2 2026.
Fred Alger Management sold 43,441 Insmed shares in Q2 2026, an estimated $5.26M.
Insmed made up 0.03% of Fred Alger Management's portfolio in Q2 2026, its #187 holding.
Fred Alger Management first reported a position in Insmed in Q2 2019 and has held it in 10 quarters since.
Fred Alger Management's Insmed position peaked at $33.4M in Q2 2024.
666 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Fred Alger Management's 13F filing for Q2 2026, filed 14 Aug 2026.