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Magnetar Financial LLC

SEC CIK
0001352851
Latest filing
Aug 14, 2026

IMSR holding history

Terrestrial Energy Inc. in every 13F filed by Magnetar Financial LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IMSR overviewAll 13F holders of IMSRFull Q2 2026 holdings

Shares (Q2 2026)
244,000
Value
$737.1K
% of portfolio
<0.1%
Quarters held
6
Since Q1 2025
Holdings of IMSR by Magnetar Financial LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026244,000$737.1K<0.1%00.0%UnchangedHolders
Q1 2026244,000$1.47M<0.1%+219,115+880.5%AddedHolders
Q4 202524,885$152.0K<0.1%−117,419−82.5%ReducedHolders
Q3 2025142,304$2.34M<0.1%−1,254,862−89.8%ReducedHolders
Q2 20251,397,166$16.5M0.1%−562,032−28.7%ReducedHolders
Q1 20251,959,198$20.7M0.3%+1,959,198NewHolders