T. Rowe Price Investment Management
INSM icon

T. Rowe Price Investment Management’s Insmed INSM Stock Holding History

T. Rowe Price Investment 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 		$173M Buy
+1,622,675
New +$196M 0.11% 201
2026
Q1 		– Sell
-61
Closed -$11K – 791
2025
Q4 		$11K Buy
61
+7
+13% +$1.28K ﹤0.01% 707
2025
Q3 		$8K Buy
+54
New +$6.62K ﹤0.01% 732
2025
Q2 		– Sell
-1,476,948
Closed -$113M – 713
2025
Q1 		$113M Sell
1,476,948
-505,759
-26% -$38.7M 0.07% 257
2024
Q4 		$137M Sell
1,982,707
-294,436
-13% -$21.2M 0.08% 238
2024
Q3 		$166M Sell
2,277,143
-158,819
-7% -$11.7M 0.1% 211
2024
Q2 		$163M Sell
2,435,962
-1,015,618
-29% -$39.4M 0.1% 200
2024
Q1 		$93.6M Sell
3,451,580
-2,399,026
-41% -$67.1M 0.06% 297
2023
Q4 		$181M Sell
5,850,606
-2,474,278
-30% -$64.2M 0.12% 197
2023
Q3 		$210M Buy
8,324,884
+20,570
+0.2% +$470K 0.15% 169
2023
Q2 		$175M Sell
8,304,314
-111,116
-1% -$2.11M 0.12% 193
2023
Q1 		$143M Buy
8,415,430
+40,755
+0.5% +$792K 0.1% 203
2022
Q4 		$167M Buy
8,374,675
+307,913
+4% +$5.95M 0.13% 175
2022
Q3 		$174M Buy
+8,066,762
New +$193M 0.14% 158

Other funds holding INSM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
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
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
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

T. Rowe Price Investment Management's INSM Position: Q2 2026 in Review

T. Rowe Price Investment Management opened a new position in Insmed (INSM) in Q2 2026: 1,622,675 shares worth $173M. The stake represents 0.11% of the portfolio and ranks #201 among its holdings. This is a return to the name: T. Rowe Price Investment Management previously reported a position in INSM as recently as Q4 2025.

T. Rowe Price Investment Management first reported a position in INSM in Q3 2022 and has held it in 14 quarters since. The position peaked at $210M in Q3 2023. 663 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • T. Rowe Price Investment Management held 1,622,675 shares of Insmed worth $173M as of Q2 2026.
  • Insmed was a new T. Rowe Price Investment Management position in Q2 2026.
  • Insmed made up 0.11% of T. Rowe Price Investment Management's portfolio in Q2 2026, its #201 holding.
  • T. Rowe Price Investment Management first reported a position in Insmed in Q3 2022 and has held it in 14 quarters since.
  • T. Rowe Price Investment Management's Insmed position peaked at $210M in Q3 2023.
  • 663 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on T. Rowe Price Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.