Maven Securities’s Terrestrial Energy IMSR Stock Holding History

Maven Securities’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
2025 Q4	–	Sell	-12,200	Closed	-$200K	–	578
2025 Q3	$200K	Buy	+12,200	New	+$145K	﹤0.01%	440

Other funds holding IMSR

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

SIG

Senator Investment Group New York $2.18B AUM 58.56% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Verition Fund Management Greenwich, Connecticut $15.4B AUM 30.69% 1-Year Est. Return

MMCAP International Grand Cayman, Cayman Islands $1.16B AUM 77.9% 1-Year Est. Return

Maven Securities's IMSR Position: Q4 2025 in Review

Maven Securities sold out of Terrestrial Energy (IMSR) in Q4 2025, closing a stake of 12,200 shares — an estimated $200K sold.

Maven Securities first reported a position in IMSR in Q3 2025 and held it in 1 quarter. The position peaked at $200K in Q3 2025. 82 funds tracked by Wall St. Rank hold IMSR as of Q4 2025.

Maven Securities reported no remaining Terrestrial Energy position as of Q4 2025 after selling out during the quarter.
Maven Securities sold 12,200 Terrestrial Energy shares in Q4 2025, an estimated $200K.
Maven Securities first reported a position in Terrestrial Energy in Q3 2025 and held it in 1 quarter.
Maven Securities's Terrestrial Energy position peaked at $200K in Q3 2025.
82 funds tracked by Wall St. Rank held Terrestrial Energy as of Q4 2025.

Based on Maven Securities's 13F filing for Q4 2025, filed 13 Feb 2026.