XT
IMSR

XTX Topco’s Terrestrial Energy IMSR Stock Holding History

XTX Topco’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
Q2 		$670K Buy
+94,601
New +$699K 0.01% 2159
2026
Q1 		– Sell
-97,218
Closed -$594K – 4530
2025
Q4 		$594K Buy
+97,218
New +$1.3M 0.02% 1451

Other funds holding IMSR

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
ETC
Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
LP
LMR Partners London, United Kingdom $26.8B AUM 68.38% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return

XTX Topco's IMSR Position: Q2 2026 in Review

XTX Topco opened a new position in Terrestrial Energy (IMSR) in Q2 2026: 94,601 shares worth $670K. The stake represents 0.01% of the portfolio and ranks #2159 among its holdings. This is a return to the name: XTX Topco previously reported a position in IMSR as recently as Q4 2025.

XTX Topco first reported a position in IMSR in Q4 2025 and has held it in 2 quarters since. 110 funds tracked by Wall St. Rank hold IMSR as of Q2 2026.

  • XTX Topco held 94,601 shares of Terrestrial Energy worth $670K as of Q2 2026.
  • Terrestrial Energy was a new XTX Topco position in Q2 2026.
  • Terrestrial Energy made up 0.01% of XTX Topco's portfolio in Q2 2026, its #2159 holding.
  • XTX Topco first reported a position in Terrestrial Energy in Q4 2025 and has held it in 2 quarters since.
  • 110 funds tracked by Wall St. Rank held Terrestrial Energy as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.