Magnetar Financial LLC - Sep 30, 2025 SCHEDULE 13G/A Report for Terrestrial Energy Inc. Common Stock, par value $0.0001

Filing Manager
Magnetar Financial LLC
Reporting Manager
MAGNETAR FINANCIAL LLC
Security
Terrestrial Energy Inc. Common Stock, par value $0.0001
Shares outstanding
23M shares
Disclosed Ownership
142K shares
Ownership
0.62%
Form type
SCHEDULE 13G/A
Date filed
11/12/2025, 08:13 AM
Date of event
Sep 30, 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
MAGNETAR FINANCIAL LLC 0.62% 142K 0 142K /s/ Hayley Stein Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
MAGNETAR CAPITAL PARTNERS LP 0.62% 142K 0 142K /s/ Hayley Stein Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
SUPERNOVA MANAGEMENT LLC 0.62% 142K 0 142K /s/ Hayley Stein Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
DAVID J. SNYDERMAN 0.62% 142K 0 142K /s/ Hayley Stein Name: Hayley Stein Title: Attorney-in-fact for David J. Snyderman, Manager of Administrative Supernova Management LLC