How many institutions own IMSR stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own IMSR shares is 92, representing 29.31% of the company's common stock.

Who are the major shareholders selling Terrestrial Energy Inc. stock?

SHAY CAPITAL LLC, in the last quarter, reduced its stake in IMSR by -57.43% restricting it's holding to 118.09 thousand shares of worth nearly $709.11K. SUSQUEHANNA INTERNATIONAL GROUP, LLP also lessened -5.24% of the IMSR shares from its portfolio, reducing its holding to 330.28 thousand shares of worth $1.98M. WINTON GROUP LTD also shunned IMSR shares holding by -23.2% last quarter which brought its holding to 496.3 thousand shares worth $2.98M.

Investors who are buying IMSR stock?

As per its latest 13F filing, UBS ASSET MANAGEMENT AMERICAS INC increased its stake in IMSR by 100% in the last quarter. The institutional holder raised its holding to 63.5 thousand shares having worth more than $381.32K. DIAMETRIC CAPITAL, LP also added 100% more shares of IMSR to its portfolio, raising its holding to 59.19 thousand shares of worth $355.44K. D. E. SHAW & CO., INC. also increased its IMSR shares holding by 12.53% which brought its holding to 1.21 million shares worth $7.29M.

IMSR's major insiders: who are they?

The insider with the most stakes in IMSR is N/A , N/A at the company. Additionally, IMSR stock is highly held by N/A N/A and N/A N/A among others.

Did an insider recently sell IMSR stock?

Company executives, directors, and other insiders own 37.58% percent of Terrestrial Energy Inc.'s stock. Within the last six months, there have been 0 transaction(s) in which IMSR insiders have sold stock, totaling 0 shares. Insiders that have sold shares include .

Which insider recently purchased IMSR stock?

There have been 0 transaction(s) during the past 6-months in which Terrestrial Energy Inc. insiders have bought stock, totalling 0 shares

How much of IMSR does insiders own?

Around 0 Terrestrial Energy Inc. shares are held by insiders, which represents about 37.58% of IMSR stock.

Who is the insider with the largest stake?

IMSR N/A, N/A holds the largest portfolio of the company's shares. IMSR shares owned by N/A total nearly -.

Which institution holds the most shares in IMSR?

PERISCOPE CAPITAL INC. is the largest institutional owner in IMSR which holds 122 thousand shares worth $579.50K or 0.17% of the total IMSR shares outstanding followed by SHAY CAPITAL LLC with ownership of 118.09 thousand shares representing 0.16% of the IMSR ownership. SUSQUEHANNA INTERNATIONAL GROUP, LLP is the third largest stakeholder with 330.28 thousand shares or 0.46% of the ownership worth more than $1.98M.

Is Terrestrial Energy Inc. stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the IMSR is concerned, it is a stock which is optionable.

Is there a short position on IMSR's shares?

Number of IMSR shares short is null. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding IMSR shares are there?

As of today, null shares of IMSR are outstanding.

Is there many float in IMSR stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, IMSR has null shares in float.

IMSR short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for IMSR is null.

Terrestrial Energy (IMSR) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableYes

Short Percent Of Outstanding SharesN/A

Short Percent Of FloatN/A

Shares OutstandingN/A

Shares FloatN/A

Shares ShortN/A

Short RatioN/A

N/A

Short % of Float

N/A

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

37.58% Percentage of Shares held by All Insiders

29.31% Percentage of Shares held by All Institutions

46.96% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 29.31% of IMSR shares are held by financial institutions. PERISCOPE CAPITAL INC. is the top corporate investor, holding 122K shares valued at $579.50K. A 0.17% stake in Terrestrial Energy Inc. is owned by the company. SHAY CAPITAL LLC owns 118.09K shares valued at $709.11K, which translates its holding of 0.16% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2026	PERISCOPE CAPITAL INC.	0.17%	122K	579.5K	0	0
Mar 31, 2026	SHAY CAPITAL LLC	0.16%	118.09K	709.11K	-159.28K	-57.43%
Mar 31, 2026	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.46%	330.28K	1.98M	-18.26K	-5.24%
Mar 31, 2026	WINTON GROUP LTD	0.69%	496.3K	2.98M	-149.89K	-23.20%
Mar 31, 2026	FNY INVESTMENT ADVISERS, LLC	0.09%	66.16K	397K	-23.84K	-26.49%
Mar 31, 2026	MASSAR CAPITAL MANAGEMENT, LP	0.09%	65K	390.33K	0	0
Mar 31, 2026	UBS ASSET MANAGEMENT AMERICAS INC	0.09%	63.5K	381.32K	63.5K	+100.00%
Mar 31, 2026	CASTLEKNIGHT MANAGEMENT LP	0.08%	60.7K	364.5K	0	0
Mar 31, 2026	DIAMETRIC CAPITAL, LP	0.08%	59.19K	355.44K	59.19K	+100.00%
Mar 31, 2026	D. E. SHAW & CO., INC.	1.7%	1.21M	7.29M	135.23K	+12.53%
Mar 31, 2026	BLACKROCK, INC.	1.56%	1.12M	6.73M	28.38K	+2.60%
Mar 31, 2026	JPMORGAN CHASE & CO	1.5%	1.07M	5.93M	-97.01K	-8.29%
Mar 31, 2026	ALYESKA INVESTMENT GROUP, L.P.	1.01%	722K	4.31M	0	0
Mar 31, 2026	LMR PARTNERS LLP	0.96%	690.7K	4.15M	102.49K	+17.42%
Mar 31, 2026	UBS GROUP AG	0.69%	493.58K	2.96M	-19.07K	-3.72%
Mar 31, 2026		0.46%	330K	1.98M	330K	+100.00%
Mar 31, 2026	VANGUARD FIDUCIARY TRUST CO	0.42%	300.41K	1.8M	300.41K	+100.00%
Mar 31, 2026	MORGAN STANLEY	0.4%	285.55K	1.71M	163.24K	+133.47%
Mar 31, 2026	MAGNETAR FINANCIAL LLC	0.34%	244K	1.47M	219.12K	+880.51%
Mar 31, 2026	HITE HEDGE ASSET MANAGEMENT LLC	0.34%	240.11K	1.44M	240.11K	+100.00%
Mar 31, 2026	TORONTO DOMINION BANK	0.32%	225.97K	1.36M	200.97K	+803.90%
Mar 31, 2026	COMMONWEALTH EQUITY SERVICES, LLC	0.14%	100.13K	601.29K	46.11K	+85.35%
Mar 31, 2026	DANSKE BANK A/S	0.14%	100K	6K	-270K	-72.97%
Mar 31, 2026	MOUNT LUCAS MANAGEMENT LP	0.07%	51.5K	309.26K	11.5K	+28.75%
Mar 31, 2026	SIMON QUICK ADVISORS, LLC	0.06%	40K	240.2K	-5K	-11.11%
Mar 31, 2026	VANGUARD GLOBAL ADVISERS, LLC	0.04%	27.06K	162.47K	27.06K	+100.00%
Mar 31, 2026	CITIGROUP INC	0.04%	26.91K	161.58K	14.59K	+118.43%
Mar 31, 2026	LPL FINANCIAL LLC	0.04%	26.7K	160.36K	26.7K	+100.00%
Mar 31, 2026	DRW SECURITIES, LLC	0.03%	22K	132.11K	22K	+100.00%
Mar 31, 2026	IMC-CHICAGO, LLC	0.03%	21.16K	127.05K	21.16K	+100.00%
Mar 31, 2026	VANGUARD ASSET MANAGEMENT, LTD	0.03%	19.45K	116.82K	19.45K	+100.00%
Mar 31, 2026	BANK OF NEW YORK MELLON CORP	0.02%	17.04K	102.3K	17.04K	+100.00%
Mar 31, 2026	LEVEL FOUR ADVISORY SERVICES, LLC	0.02%	16.38K	98.33K	16.38K	+100.00%
Mar 31, 2026	LEGAL & GENERAL GROUP PLC	0.02%	15.23K	91.45K	15.23K	+100.00%
Mar 31, 2026	BANK OF MONTREAL /CAN/	0.02%	12.52K	75.18K	12.52K	+100.00%
Mar 31, 2026	VANGUARD INVESTMENTS AUSTRALIA, LTD.	0.01%	10.67K	64.1K	10.67K	+100.00%
Mar 31, 2026	WEALTHPLAN INVESTMENT MANAGEMENT, LLC	0.01%	10.21K	61.29K	10.21K	+100.00%
Mar 31, 2026	FIRST FOUNDATION ADVISORS	0.01%	10K	60.05K	10K	+100.00%
Mar 31, 2026	INSIGNEO ADVISORY SERVICES, LLC	0.01%	10K	60.05K	10K	+100.00%
Mar 31, 2026	KLP KAPITALFORVALTNING AS	0.01%	6.3K	37.83K	6.3K	+100.00%
Mar 31, 2026	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0.01%	5.35K	32.13K	1K	+22.99%
Mar 31, 2026	ANCHOR INVESTMENT MANAGEMENT, LLC	0%	2.1K	12.61K	0	0
Mar 31, 2026	CHERRY TREE WEALTH MANAGEMENT, LLC	0%	692	4.16K	0	0
Mar 31, 2026	FARTHER FINANCE ADVISORS, LLC	0%	248	1.52K	0	0
Mar 31, 2026	STEWARD PARTNERS INVESTMENT ADVISORY, LLC	0%	200	1.2K	0	0
Mar 31, 2026	DB FITZPATRICK & CO, INC	0%	150	901	80	+114.29%
Mar 31, 2026	REDWOOD PARK ADVISORS LLC	0%	87	523	87	+100.00%
Mar 31, 2026	SIGNATURE RESOURCES CAPITAL MANAGEMENT, LLC	0%	70	420	70	+100.00%
Mar 31, 2026	ROOT FINANCIAL PARTNERS, LLC	0%	50	300	0	0
Mar 31, 2026	EXCHANGE TRADED CONCEPTS, LLC	2.92%	2.09M	12.56M	2.09M	+100.00%
Mar 31, 2026	GEODE CAPITAL MANAGEMENT, LLC	0.92%	659.39K	3.96M	-136.94K	-17.20%
Mar 31, 2026	VENNLIGHT CAPITAL MANAGEMENT, LP	0.8%	575.5K	3.46M	575.5K	+100.00%
Mar 31, 2026	HUDSON BAY CAPITAL MANAGEMENT LP	0.63%	452.29K	2.72M	-283.75K	-38.55%
Mar 31, 2026	VERITION FUND MANAGEMENT LLC	0.62%	444.96K	2.67M	-308.85K	-40.97%
Mar 31, 2026	RENAISSANCE TECHNOLOGIES LLC	0.57%	407.9K	2.45M	235.1K	+136.05%
Mar 31, 2026	GOLDMAN SACHS GROUP INC	0.55%	396.24K	2.38M	114.47K	+40.63%
Mar 31, 2026	STATE STREET CORP	0.48%	345.52K	2.07M	18.82K	+5.76%
Mar 31, 2026	SWISS NATIONAL BANK	0.08%	56.6K	339.88K	56.6K	+100.00%
Mar 31, 2026	TIEMANN INVESTMENT ADVISORS, LLC	0.11%	76K	456.35K	0	0
Mar 31, 2026	MOORE CAPITAL MANAGEMENT, LP	0.1%	75K	450.38K	25K	+50.00%
Mar 31, 2026	SONA ASSET MANAGEMENT (US) LLC	0.12%	85.57K	513.82K	-14.43K	-14.43%
Mar 31, 2026	K2 PRINCIPAL FUND, L.P.	0.11%	80K	480.8K	80K	+100.00%
Mar 31, 2026	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.47%	337.99K	2.03M	-72.89K	-17.74%
Mar 31, 2026	BALYASNY ASSET MANAGEMENT L.P.	0.29%	205.9K	1.24M	-1.2M	-85.30%
Mar 31, 2026	SQUAREPOINT OPS LLC	0.24%	173.21K	1.04M	84K	+94.17%
Mar 31, 2026	NORTHERN TRUST CORP	0.17%	124.54K	747.85K	-31.84K	-20.36%
Mar 31, 2026	YORKVILLE ADVISORS GLOBAL, LP	0.17%	122K	732.61K	122K	+100.00%
Mar 31, 2026	JANE STREET GROUP, LLC	0.1%	74.6K	447.97K	30.3K	+68.40%
Mar 31, 2026	BANK OF AMERICA CORP /DE/	0.19%	132.75K	797.16K	65.02K	+96.00%
Mar 31, 2026	CITADEL ADVISORS LLC	0.18%	125.8K	755.43K	16.5K	+15.10%
Mar 31, 2026	HARRADEN CIRCLE INVESTMENTS, LLC	0.17%	122K	732.61K	0	0
Dec 31, 2025	SENATOR INVESTMENT GROUP LP	3.13%	900K	5.5M	900K	+100.00%
Dec 31, 2025	MMCAP INTERNATIONAL INC. SPC	2.61%	750K	4.58M	750K	+100.00%
Dec 31, 2025	LMR PARTNERS LLP	2.05%	588.21K	3.59M	588.21K	+100.00%
Dec 31, 2025	UBS GROUP AG	1.78%	512.64K	3.13M	512.64K	+100.00%
Dec 31, 2025	ALYESKA INVESTMENT GROUP, L.P.	2.51%	722K	4.38M	722K	+100.00%
Dec 31, 2025	NORTHERN TRUST CORP	0.54%	156.38K	955.46K	156.38K	+100.00%
Dec 31, 2025	SHAY CAPITAL LLC	0.57%	165K	1.01M	165K	+100.00%
Dec 31, 2025	MORGAN STANLEY	0.43%	122.31K	747.3K	122.31K	+100.00%
Dec 31, 2025	HARRADEN CIRCLE INVESTMENTS, LLC	0.42%	122K	745.42K	122K	+100.00%
Dec 31, 2025		0.29%	84K	513.24K	84K	+100.00%
Dec 31, 2025	DANSKE BANK A/S	0.74%	213.4K	1.3M	213.4K	+100.00%
Dec 31, 2025	HIGHBRIDGE CAPITAL MANAGEMENT LLC	0.85%	244K	1.49M	244K	+100.00%
Dec 31, 2025	CAPTION MANAGEMENT, LLC	0.7%	201K	1.23M	201K	+100.00%
Dec 31, 2025	WALLEYE CAPITAL LLC	0.73%	210.58K	1.29M	210.58K	+100.00%
Dec 31, 2025	JANE STREET GROUP, LLC	0.62%	179.1K	1.09M	179.1K	+100.00%
Dec 31, 2025	CITADEL ADVISORS LLC	0.38%	109.3K	667.82K	109.3K	+100.00%
Dec 31, 2025	TIEMANN INVESTMENT ADVISORS, LLC	0.26%	76K	464.33K	76K	+100.00%
Dec 31, 2025	COMMONWEALTH EQUITY SERVICES, LLC	0.19%	54.02K	330.08K	54.02K	+100.00%
Dec 31, 2025	BARCLAYS PLC	0.16%	45.28K	276.63K	45.28K	+100.00%
Dec 31, 2025	SIMON QUICK ADVISORS, LLC	0.16%	45K	274.95K	45K	+100.00%
Dec 31, 2025	MOUNT LUCAS MANAGEMENT LP	0.14%	40K	244.4K	40K	+100.00%
Dec 31, 2025	MARSHALL WACE, LLP	0.11%	30.89K	188.76K	30.89K	+100.00%
Dec 31, 2025	PEAK6 LLC	0.09%	26.6K	162.53K	26.6K	+100.00%
Dec 31, 2025	LANDSCAPE CAPITAL MANAGEMENT, L.L.C.	0.06%	17.12K	104.61K	17.12K	+100.00%
Dec 31, 2025	CITIGROUP INC	0.04%	12.32K	75.27K	12.32K	+100.00%
Dec 31, 2025	MAREX GROUP PLC	0.04%	12K	73.32K	12K	+100.00%
Dec 31, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0.02%	4.35K	26.58K	4.35K	+100.00%
Dec 31, 2025	CHERRY TREE WEALTH MANAGEMENT, LLC	0%	692	4.23K	692	+100.00%
Dec 31, 2025	TUCKER ASSET MANAGEMENT LLC	0%	371	2.27K	371	+100.00%
Dec 31, 2025	FARTHER FINANCE ADVISORS, LLC	0%	248	1.51K	248	+100.00%
Dec 31, 2025	STEWARD PARTNERS INVESTMENT ADVISORY, LLC	0%	200	1.22K	200	+100.00%
Dec 31, 2025	DAVIDSON CAPITAL MANAGEMENT INC.	0%	182	1.11K	182	+100.00%
Dec 31, 2025	FLAGSHIP HARBOR ADVISORS, LLC	0%	140	855	140	+100.00%
Dec 31, 2025	DB FITZPATRICK & CO, INC	0%	70	428	70	+100.00%
Dec 31, 2025	ROOT FINANCIAL PARTNERS, LLC	0%	50	306	50	+100.00%
Dec 31, 2025	VANGUARD GROUP INC	6.43%	1.85M	11.3M	1.85M	+100.00%
Dec 31, 2025	JPMORGAN CHASE & CO	4.07%	1.17M	7.15M	1.17M	+100.00%
Dec 31, 2025	HUDSON BAY CAPITAL MANAGEMENT LP	0.35%	100K	611K	100K	+100.00%
Dec 31, 2025	SONA ASSET MANAGEMENT (US) LLC	0.35%	100K	611K	100K	+100.00%
Dec 31, 2025	XTX TOPCO LTD	0.34%	97.22K	594K	97.22K	+100.00%
Dec 31, 2025	FNY INVESTMENT ADVISERS, LLC	0.31%	90K	549K	90K	+100.00%
Dec 31, 2025	PERISCOPE CAPITAL INC.	0.42%	122K	580.72K	122K	+100.00%
Dec 31, 2025	SQUAREPOINT OPS LLC	0.31%	89.21K	545.06K	89.21K	+100.00%
Dec 31, 2025	WINTON GROUP LTD	2.25%	646.19K	3.95M	646.19K	+100.00%
Dec 31, 2025	CANTOR FITZGERALD, L. P.	1.91%	550K	3.36M	550K	+100.00%
Dec 31, 2025	HBK INVESTMENTS L P	1.74%	500K	3.06M	500K	+100.00%
Dec 31, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1.43%	410.88K	2.51M	410.88K	+100.00%
Dec 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	1.21%	348.53K	2.13M	348.53K	+100.00%
Dec 31, 2025	STATE STREET CORP	1.14%	326.7K	2M	326.7K	+100.00%
Dec 31, 2025	BALYASNY ASSET MANAGEMENT L.P.	4.87%	1.4M	8.56M	1.4M	+100.00%
Dec 31, 2025	BLACKROCK, INC.	3.8%	1.09M	6.68M	1.09M	+100.00%
Dec 31, 2025	D. E. SHAW & CO., INC.	3.75%	1.08M	6.6M	1.08M	+100.00%
Dec 31, 2025	VENNLIGHT CAPITAL MANAGEMENT, LP	3.75%	1.08M	6.58M	1.08M	+100.00%
Dec 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	2.77%	796.33K	4.87M	796.33K	+100.00%
Dec 31, 2025	VERITION FUND MANAGEMENT LLC	2.62%	753.8K	4.61M	753.8K	+100.00%
Dec 31, 2025	JUMP FINANCIAL, LLC	0.27%	77.9K	475.97K	77.9K	+100.00%
Dec 31, 2025	GOLDMAN SACHS GROUP INC	0.98%	281.76K	1.72M	281.76K	+100.00%
Dec 31, 2025	RENAISSANCE TECHNOLOGIES LLC	0.6%	172.8K	1.06M	172.8K	+100.00%
Dec 31, 2025	TUDOR INVESTMENT CORP ET AL	0.36%	103K	629.33K	103K	+100.00%
Dec 31, 2025	WELLS FARGO & COMPANY/MN	0.35%	100K	611K	100K	+100.00%

Frequently Asked Questions