Vanguard Group
IMSR

Vanguard Group’s Terrestrial Energy IMSR Stock Holding History

Vanguard Group’s Portfolio IMSR Stock Details IMSR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		$11.3M Buy
+1,849,446
New +$24.7M ﹤0.01% 2904

Other funds holding IMSR

Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
SIG
Senator Investment Group New York $2.18B AUM 58.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Verition Fund Management
Verition Fund Management Greenwich, Connecticut $15.4B AUM 30.69% 1-Year Est. Return
MI
MMCAP International Grand Cayman, Cayman Islands $1.16B AUM 77.9% 1-Year Est. Return
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $29B AUM 30.2% 1-Year Est. Return

Vanguard Group's IMSR Position: Q4 2025 in Review

Vanguard Group opened a new position in Terrestrial Energy (IMSR) in Q4 2025: 1,849,446 shares worth $11.3M. The stake represents ﹤0.01% of the portfolio and ranks #2904 among its holdings.

82 funds tracked by Wall St. Rank hold IMSR as of Q4 2025.

  • Vanguard Group held 1,849,446 shares of Terrestrial Energy worth $11.3M as of Q4 2025.
  • Terrestrial Energy was a new Vanguard Group position in Q4 2025.
  • Terrestrial Energy made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #2904 holding.
  • 82 funds tracked by Wall St. Rank held Terrestrial Energy as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.