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
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

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

Magnetar Financial's IMSR Position: Q1 2026 in Review

Magnetar Financial increased its Terrestrial Energy (IMSR) stake by 881% in Q1 2026, buying an estimated $1.74M and bringing the position to 244,000 shares worth $1.47M. The position accounts for 0.01% of the portfolio, ranked #385.

Magnetar Financial first reported a position in IMSR in Q1 2025 and has held it in 5 quarters since. The position peaked at $20.7M in Q1 2025. 88 funds tracked by Wall St. Rank hold IMSR as of Q1 2026.

  • Magnetar Financial held 244,000 shares of Terrestrial Energy worth $1.47M as of Q1 2026.
  • Magnetar Financial bought 219,115 Terrestrial Energy shares in Q1 2026, an estimated $1.74M.
  • Terrestrial Energy made up 0.01% of Magnetar Financial's portfolio in Q1 2026, its #385 holding.
  • Magnetar Financial first reported a position in Terrestrial Energy in Q1 2025 and has held it in 5 quarters since.
  • Magnetar Financial's Terrestrial Energy position peaked at $20.7M in Q1 2025.
  • 88 funds tracked by Wall St. Rank held Terrestrial Energy as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.