UBS Group
IMSR

UBS Group’s Terrestrial Energy IMSR Stock Holding History

UBS 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
2026
Q1 		$2.96M Sell
493,577
-19,067
-4% -$151K ﹤0.01% 4599
2025
Q4 		$3.13M Buy
512,644
+490,755
+2,242% +$6.56M ﹤0.01% 4519
2025
Q3 		$359K Buy
21,889
+18,241
+500% +$217K ﹤0.01% 6316
2025
Q2 		$40.5K Sell
3,648
-27,402
-88% -$305K ﹤0.01% 7942
2025
Q1 		$327K Buy
31,050
+14,430
+87% +$146K ﹤0.01% 6179
2024
Q4 		$167K Buy
+16,620
New +$166K ﹤0.01% 6566

Other funds holding IMSR

ETC
Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
LP
LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VCM
Vennlight Capital Management Weston, Connecticut $99M AUM 77.4% 1-Year Est. Return

UBS Group's IMSR Position: Q1 2026 in Review

UBS Group reduced its Terrestrial Energy (IMSR) stake by 3.7% in Q1 2026, selling an estimated $151K and leaving 493,577 shares worth $2.96M. The position accounts for ﹤0.01% of the portfolio, ranked #4599.

UBS Group first reported a position in IMSR in Q4 2024 and has held it in 6 quarters since. The position peaked at $3.13M in Q4 2025. 88 funds tracked by Wall St. Rank hold IMSR as of Q1 2026.

  • UBS Group held 493,577 shares of Terrestrial Energy worth $2.96M as of Q1 2026.
  • UBS Group sold 19,067 Terrestrial Energy shares in Q1 2026, an estimated $151K.
  • Terrestrial Energy made up ﹤0.01% of UBS Group's portfolio in Q1 2026, its #4599 holding.
  • UBS Group first reported a position in Terrestrial Energy in Q4 2024 and has held it in 6 quarters since.
  • UBS Group's Terrestrial Energy position peaked at $3.13M in Q4 2025.
  • 88 funds tracked by Wall St. Rank held Terrestrial Energy as of Q1 2026.

Based on UBS Group's 13F filing for Q1 2026, filed 5 May 2026.