Who Owns Terrestrial Energy Inc. (IMSR)?Hedge Fund & Institutional Holders

$6.42-0.25 (-3.75%)EnergyNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.2831120008873799e+182T

% of Float Held

1.8049151864765813e+293%

QoQ Change in Holders

+15 / -0

Price History

$6.11$9.36$12.61$15.85$19.10Oct 25Jan 26Mar 26

IMSR — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Anchor Investment Management, LLCNew Position+2K+$12.8M
CITADEL ADVISORS LLCNew Position+2.0M+$12.0M
VANGUARD GROUP INCNew Position+1.8M+$11.3M
BALYASNY ASSET MANAGEMENT L.P.New Position+1.4M+$8.0M
D. E. Shaw & Co., Inc.New Position+1.1M+$6.0M
JPMORGAN CHASE & CONew Position+1.2M+$6.0M
BlackRock, Inc.New Position+1.1M+$6.0M
Senator Investment Group LPNew Position+900K+$5.5M
MMCAP International Inc. SPCNew Position+750K+$4.6M
Hudson Bay Capital Management LPNew Position+736K+$4.0M
Alyeska Investment Group, L.P.New Position+722K+$4.0M
Verition Fund Management LLCNew Position+754K+$4.0M
CANTOR FITZGERALD, L. P.New Position+550K+$3.4M
UBS Group AGNew Position+513K+$3.1M
HBK INVESTMENTS L PNew Position+500K+$3.1M

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1Anchor Investment Management, LLC2,100$12.8M0.00%Share
2CITADEL ADVISORS LLC2,029,208$12.0M0.00%Share
3VANGUARD GROUP INC1,452,261$8.9M0.00%Share
4BALYASNY ASSET MANAGEMENT L.P.1,400,953$8.0M0.01%Share
5Vennlight Capital Management, LP1,077,500$6.6M6.97%Call
6BlackRock, Inc.1,074,969$6.0M0.00%Share
7D. E. Shaw & Co., Inc.1,079,546$6.0M0.00%Share
8JPMORGAN CHASE & CO1,103,742$6.0M0.00%Share
9Senator Investment Group LP900,000$5.5M0.22%Share
10MMCAP International Inc. SPC750,000$4.6M0.46%Share
11Alyeska Investment Group, L.P.722,000$4.0M0.01%Share
12Verition Fund Management LLC753,803$4.0M0.02%Share
13Hudson Bay Capital Management LP707,618$4.0M0.01%Share
14CANTOR FITZGERALD, L. P.550,000$3.4M0.05%Share
15UBS Group AG500,271$3.1M0.00%Share
16HBK INVESTMENTS L P500,000$3.1M0.02%Share
17Galaxy Group Investments LLC500,000$3.1M0.32%Share
18SUSQUEHANNA INTERNATIONAL GROUP, LLP606,300$3.0M0.00%Call
19LMR Partners LLP588,214$3.0M0.01%Share
20WINTON GROUP Ltd646,190$3.0M0.10%Share
21GEODE CAPITAL MANAGEMENT, LLC649,553$3.0M0.00%Share
22GROUP ONE TRADING LLC372,700$2.3M0.00%Call
23VANGUARD GROUP INC370,130$2.3M0.00%Share
24SUSQUEHANNA INTERNATIONAL GROUP, LLP366,700$2.0M0.00%Put
25CHARLES SCHWAB INVESTMENT MANAGEMENT INC410,877$2.0M0.00%Share
26SUSQUEHANNA INTERNATIONAL GROUP, LLP348,532$2.0M0.00%Share
27Shay Capital LLC277,363$1.7M0.17%Share
28HIGHBRIDGE CAPITAL MANAGEMENT LLC244,000$1.5M0.05%Share
29Caption Management, LLC217,800$1.3M0.01%Call
30DANSKE BANK A/S213,401$1.3M0.00%Share
31Caption Management, LLC201,000$1.2M0.01%Put
32Shay Capital LLC165,000$1.0M0.10%Call
33CITADEL ADVISORS LLC274,500$1.0M0.00%Call
34STATE STREET CORP326,700$1.0M0.00%Share
35RENAISSANCE TECHNOLOGIES LLC172,800$1.0M0.00%Share
36GOLDMAN SACHS GROUP INC281,764$1.0M0.00%Share
37JANE STREET GROUP, LLC282,464$1.0M0.00%Share
38JANE STREET GROUP, LLC179,100$1.0M0.00%Call
39Walleye Capital LLC210,581$1.0M0.00%Share
40HRT FINANCIAL LP175,000$1.0M0.00%Share
41IMC-Chicago, LLC151,300$924K0.00%Call
42Harraden Circle Investments, LLC122,000$745K0.14%Share
43SONA ASSET MANAGEMENT (US) LLC97,000$592K0.01%Share
44PERISCOPE CAPITAL INC.122,000$580K0.07%Share
45FNY Investment Advisers, LLC90,000$549K0.15%Share
46Stoic Point Capital Management LLC84,000$513K0.43%Put
47SkyView Investment Advisors, LLC83,844$512K0.06%Share
48TIEMANN INVESTMENT ADVISORS, LLC75,995$464K0.18%Share
49Massar Capital Management, LP65,000$397K0.04%Share
50CastleKnight Management LP60,700$370K0.01%Share

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As of Q4 2025, 50 institutional investors hold IMSR (Terrestrial Energy Inc.). The largest holder is Anchor Investment Management, LLC with $12.8M in shares. This quarter, 15 institutions opened new positions and 0 closed their positions.

Frequently Asked Questions

How many hedge funds own IMSR?

As of Q4 2025, 50 institutional investors report holding IMSR (Terrestrial Energy Inc.) in their 13F filings.

Who is the largest institutional holder of IMSR?

The largest institutional holder of IMSR is Anchor Investment Management, LLC with $12.8M in shares.

Is institutional ownership of IMSR increasing or decreasing?

This quarter, 15 institutions opened new positions in IMSR and 0 closed their positions.