Massar Capital Management’s Terrestrial Energy IMSR Stock Holding History

Massar Capital Management’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	$390K	Hold	65,000	–	–	0.04%	184
2025 Q4	$397K	Hold	65,000	–	–	0.04%	248
2025 Q3	$1.07M	Sell	65,000 -35,000	-35%	-$416K	0.14%	95
2025 Q2	$1.11M	Buy	+100,000	New	+$1.11M	0.83%	32

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

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

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

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

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return

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

Massar Capital Management's IMSR Position: Q1 2026 in Review

Massar Capital Management held its Terrestrial Energy (IMSR) position steady in Q1 2026 at 65,000 shares worth $390K. The position accounts for 0.04% of the portfolio, ranked #184.

Massar Capital Management first reported a position in IMSR in Q2 2025 and has held it in 4 quarters since. The position peaked at $1.11M in Q2 2025. 88 funds tracked by Wall St. Rank hold IMSR as of Q1 2026.

Massar Capital Management held 65,000 shares of Terrestrial Energy worth $390K as of Q1 2026.
Massar Capital Management left its Terrestrial Energy share count unchanged in Q1 2026.
Terrestrial Energy made up 0.04% of Massar Capital Management's portfolio in Q1 2026, its #184 holding.
Massar Capital Management first reported a position in Terrestrial Energy in Q2 2025 and has held it in 4 quarters since.
Massar Capital Management's Terrestrial Energy position peaked at $1.11M in Q2 2025.
88 funds tracked by Wall St. Rank held Terrestrial Energy as of Q1 2026.

Based on Massar Capital Management's 13F filing for Q1 2026, filed 15 May 2026.