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Rossby Financial’s Insmed INSM Stock Holding History

Rossby Financial’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 		$110K Sell
1,029
-4
-0.4% -$484 0.02% 518
2026
Q1 		$170K Buy
1,033
+5
+0.5% +$769 0.03% 408
2025
Q4 		$179K Buy
1,028
+726
+240% +$132K 0.06% 298
2025
Q3 		$44.5K Buy
302
+172
+132% +$21.1K 0.01% 554
2025
Q2 		$13.1K Buy
+130
New +$9.94K ﹤0.01% 733

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

Rossby Financial's INSM Position: Q2 2026 in Review

Rossby Financial reduced its Insmed (INSM) stake by 0.39% in Q2 2026, selling an estimated $484 and leaving 1,029 shares worth $110K. The position accounts for 0.02% of the portfolio, ranked #518.

Rossby Financial first reported a position in INSM in Q2 2025 and has held it in 5 quarters since. The position peaked at $179K in Q4 2025. 666 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Rossby Financial held 1,029 shares of Insmed worth $110K as of Q2 2026.
  • Rossby Financial sold 4 Insmed shares in Q2 2026, an estimated $484.
  • Insmed made up 0.02% of Rossby Financial's portfolio in Q2 2026, its #518 holding.
  • Rossby Financial first reported a position in Insmed in Q2 2025 and has held it in 5 quarters since.
  • Rossby Financial's Insmed position peaked at $179K in Q4 2025.
  • 666 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.