Alyeska Investment Group
IMSR

Alyeska Investment Group’s Terrestrial Energy IMSR Stock Holding History

Alyeska Investment 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
Q2 		$1.57M Sell
222,000
-500,000
-69% -$3.7M ﹤0.01% 587
2026
Q1 		$4.31M Hold
722,000
– – 0.01% 488
2025
Q4 		$4.38M Buy
722,000
+477,328
+195% +$6.38M 0.01% 473
2025
Q3 		$4.02M Buy
+244,672
New +$2.91M 0.01% 471

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

Alyeska Investment Group's IMSR Position: Q2 2026 in Review

Alyeska Investment Group reduced its Terrestrial Energy (IMSR) stake by 69% in Q2 2026, selling an estimated $3.7M and leaving 222,000 shares worth $1.57M. The position accounts for ﹤0.01% of the portfolio, ranked #587.

Alyeska Investment Group first reported a position in IMSR in Q3 2025 and has held it in 4 quarters since. The position peaked at $4.38M in Q4 2025. 110 funds tracked by Wall St. Rank hold IMSR as of Q2 2026.

  • Alyeska Investment Group held 222,000 shares of Terrestrial Energy worth $1.57M as of Q2 2026.
  • Alyeska Investment Group sold 500,000 Terrestrial Energy shares in Q2 2026, an estimated $3.7M.
  • Terrestrial Energy made up ﹤0.01% of Alyeska Investment Group's portfolio in Q2 2026, its #587 holding.
  • Alyeska Investment Group first reported a position in Terrestrial Energy in Q3 2025 and has held it in 4 quarters since.
  • Alyeska Investment Group's Terrestrial Energy position peaked at $4.38M in Q4 2025.
  • 110 funds tracked by Wall St. Rank held Terrestrial Energy as of Q2 2026.

Based on Alyeska Investment Group's 13F filing for Q2 2026, filed 14 Aug 2026.