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Brown Brothers Harriman & Co’s Insmed INSM Stock Holding History

Brown Brothers Harriman & Co’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 		$3.73K Hold
35
– – ﹤0.01% 1634
2026
Q1 		$5.72K Buy
35
+11
+46% +$1.69K ﹤0.01% 1470
2025
Q4 		$4.18K Buy
+24
New +$4.38K ﹤0.01% 1559
2018
Q2 		– Sell
-975
Closed -$22K – 836
2018
Q1 		$22K Buy
+975
New +$25.7K ﹤0.01% 572

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 Brothers Harriman & Co's INSM Position: Q2 2026 in Review

Brown Brothers Harriman & Co held its Insmed (INSM) position steady in Q2 2026 at 35 shares worth $3.73K. The position accounts for ﹤0.01% of the portfolio, ranked #1634.

Brown Brothers Harriman & Co first reported a position in INSM in Q1 2018 and has held it in 4 quarters since. The position peaked at $22K in Q1 2018. 665 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Brown Brothers Harriman & Co held 35 shares of Insmed worth $3.73K as of Q2 2026.
  • Brown Brothers Harriman & Co left its Insmed share count unchanged in Q2 2026.
  • Insmed made up ﹤0.01% of Brown Brothers Harriman & Co's portfolio in Q2 2026, its #1634 holding.
  • Brown Brothers Harriman & Co first reported a position in Insmed in Q1 2018 and has held it in 4 quarters since.
  • Brown Brothers Harriman & Co's Insmed position peaked at $22K in Q1 2018.
  • 665 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q2 2026, filed 12 Aug 2026.