MF
IMSR

Magnetar Financial’s Terrestrial Energy IMSR Stock Holding History

Magnetar Financial’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 		$737K Hold
244,000
– – 0.01% 520
2026
Q1 		$1.47M Buy
244,000
+219,115
+881% +$1.74M 0.01% 385
2025
Q4 		$152K Sell
24,885
-117,419
-83% -$1.57M ﹤0.01% 824
2025
Q3 		$2.34M Sell
142,304
-1,254,862
-90% -$14.9M 0.01% 340
2025
Q2 		$16.5M Sell
1,397,166
-562,032
-29% -$6.25M 0.08% 71
2025
Q1 		$20.7M Buy
+1,959,198
New +$19.9M 0.27% 42

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

Magnetar Financial's IMSR Position: Q2 2026 in Review

Magnetar Financial held its Terrestrial Energy (IMSR) position steady in Q2 2026 at 244,000 shares worth $737K. The position accounts for 0.01% of the portfolio, ranked #520.

Magnetar Financial first reported a position in IMSR in Q1 2025 and has held it in 6 quarters since. The position peaked at $20.7M in Q1 2025. 110 funds tracked by Wall St. Rank hold IMSR as of Q2 2026.

  • Magnetar Financial held 244,000 shares of Terrestrial Energy worth $737K as of Q2 2026.
  • Magnetar Financial left its Terrestrial Energy share count unchanged in Q2 2026.
  • Terrestrial Energy made up 0.01% of Magnetar Financial's portfolio in Q2 2026, its #520 holding.
  • Magnetar Financial first reported a position in Terrestrial Energy in Q1 2025 and has held it in 6 quarters since.
  • Magnetar Financial's Terrestrial Energy position peaked at $20.7M in Q1 2025.
  • 110 funds tracked by Wall St. Rank held Terrestrial Energy as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.