Frontier Capital Management’s Insmed INSM Stock Holding History

Frontier Capital 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	$84.8M	Buy	795,242 +325,681	+69%	+$39.4M	0.79%	28
2026 Q1	$76.8M	Buy	469,561 +184,717	+65%	+$28.4M	0.79%	25
2025 Q4	$49.6M	Sell	284,844 -44,040	-13%	-$8.04M	0.53%	55
2025 Q3	$47.4M	Buy	328,884 +181,083	+123%	+$22.2M	0.42%	80
2025 Q2	$14.9M	Sell	147,801 -409,786	-73%	-$31.3M	0.14%	208
2025 Q1	$42.5M	Buy	557,587 +122,581	+28%	+$9.38M	0.47%	75
2024 Q4	$30M	Sell	435,006 -159,100	-27%	-$11.5M	0.29%	137
2024 Q3	$43.4M	Sell	594,106 -180,298	-23%	-$13.3M	0.41%	91
2024 Q2	$51.9M	Buy	774,404 +27,073	+4%	+$1.05M	0.51%	70
2024 Q1	$20.3M	Buy	+747,331	New	+$20.9M	0.19%	164
2021 Q3	–	Sell	-7,563	Closed	-$215K	–	288
2021 Q2	$215K	Sell	7,563 -113,846	-94%	-$3.38M	﹤0.01%	284
2021 Q1	$4.13M	Sell	121,409 -328,768	-73%	-$12.6M	0.03%	257
2020 Q4	$15M	Buy	450,177 +245,599	+120%	+$8.97M	0.11%	207
2020 Q3	$6.58M	Sell	204,578 -68,191	-25%	-$1.96M	0.06%	244
2020 Q2	$7.51M	Buy	+272,769	New	+$6.47M	0.07%	238

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

Frontier Capital Management's INSM Position: Q2 2026 in Review

Frontier Capital Management increased its Insmed (INSM) stake by 69% in Q2 2026, buying an estimated $39.4M and bringing the position to 795,242 shares worth $84.8M. The position accounts for 0.79% of the portfolio, ranked #28.

Frontier Capital Management first reported a position in INSM in Q2 2020 and has held it in 15 quarters since. 665 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

Frontier Capital Management held 795,242 shares of Insmed worth $84.8M as of Q2 2026.
Frontier Capital Management bought 325,681 Insmed shares in Q2 2026, an estimated $39.4M.
Insmed made up 0.79% of Frontier Capital Management's portfolio in Q2 2026, its #28 holding.
Frontier Capital Management first reported a position in Insmed in Q2 2020 and has held it in 15 quarters since.
665 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

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