Citadel Advisors
IMSR

Citadel Advisors’s Terrestrial Energy IMSR Stock Holding History

Citadel Advisors’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 		$71.2K Sell
10,061
-1,267,197
-99% -$9.37M ﹤0.01% 12911
2026
Q1 		$7.67M Sell
1,277,258
-751,950
-37% -$5.96M ﹤0.01% 3650
2025
Q4 		$12.4M Buy
2,029,208
+998,787
+97% +$13.4M ﹤0.01% 2972
2025
Q3 		$16.9M Buy
1,030,421
+960,700
+1,378% +$11.4M ﹤0.01% 2549
2025
Q2 		$774K Buy
+69,721
New +$775K ﹤0.01% 7642

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

Citadel Advisors's IMSR Position: Q2 2026 in Review

Citadel Advisors reduced its Terrestrial Energy (IMSR) stake by 99% in Q2 2026, selling an estimated $9.37M and leaving 10,061 shares worth $71.2K. The position accounts for ﹤0.01% of the portfolio, ranked #12911.

Citadel Advisors first reported a position in IMSR in Q2 2025 and has held it in 5 quarters since. The position peaked at $16.9M in Q3 2025. 110 funds tracked by Wall St. Rank hold IMSR as of Q2 2026.

  • Citadel Advisors held 10,061 shares of Terrestrial Energy worth $71.2K as of Q2 2026.
  • Citadel Advisors sold 1,267,197 Terrestrial Energy shares in Q2 2026, an estimated $9.37M.
  • Terrestrial Energy made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #12911 holding.
  • Citadel Advisors first reported a position in Terrestrial Energy in Q2 2025 and has held it in 5 quarters since.
  • Citadel Advisors's Terrestrial Energy position peaked at $16.9M in Q3 2025.
  • 110 funds tracked by Wall St. Rank held Terrestrial Energy as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.