RPI
INSM icon

Railway Pension Investments’s Insmed INSM Stock Holding History

Railway Pension Investments’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 		$64.5M Buy
+604,700
New +$73.2M 0.81% 35

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

Railway Pension Investments's INSM Position: Q2 2026 in Review

Railway Pension Investments opened a new position in Insmed (INSM) in Q2 2026: 604,700 shares worth $64.5M. The stake represents 0.81% of the portfolio and ranks #35 among its holdings.

663 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Railway Pension Investments held 604,700 shares of Insmed worth $64.5M as of Q2 2026.
  • Insmed was a new Railway Pension Investments position in Q2 2026.
  • Insmed made up 0.81% of Railway Pension Investments's portfolio in Q2 2026, its #35 holding.
  • 663 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Railway Pension Investments's 13F filing for Q2 2026, filed 14 Aug 2026.