Brown Advisory
INSM icon

Brown Advisory’s Insmed INSM Stock Holding History

Brown Advisory’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 		$4.45M Buy
41,694
+18,745
+82% +$2.27M 0.01% 571
2026
Q1 		$3.75M Buy
22,949
+2,960
+15% +$455K 0.01% 577
2025
Q4 		$3.48M Sell
19,989
-6,120
-23% -$1.12M ﹤0.01% 596
2025
Q3 		$3.76M Sell
26,109
-553,737
-95% -$67.8M ﹤0.01% 566
2025
Q2 		$58.4M Sell
579,846
-92,604
-14% -$7.08M 0.08% 177
2025
Q1 		$51.3M Buy
672,450
+9,453
+1% +$723K 0.07% 183
2024
Q4 		$45.8M Buy
+662,997
New +$47.7M 0.06% 223

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

Brown Advisory's INSM Position: Q2 2026 in Review

Brown Advisory increased its Insmed (INSM) stake by 82% in Q2 2026, buying an estimated $2.27M and bringing the position to 41,694 shares worth $4.45M. The position accounts for 0.01% of the portfolio, ranked #571.

Brown Advisory first reported a position in INSM in Q4 2024 and has held it in 7 quarters since. The position peaked at $58.4M in Q2 2025. 663 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Brown Advisory held 41,694 shares of Insmed worth $4.45M as of Q2 2026.
  • Brown Advisory bought 18,745 Insmed shares in Q2 2026, an estimated $2.27M.
  • Insmed made up 0.01% of Brown Advisory's portfolio in Q2 2026, its #571 holding.
  • Brown Advisory first reported a position in Insmed in Q4 2024 and has held it in 7 quarters since.
  • Brown Advisory's Insmed position peaked at $58.4M in Q2 2025.
  • 663 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Brown Advisory's 13F filing for Q2 2026, filed 14 Aug 2026.