MIR Insider Trading

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Insider Trading History
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About

Insider Ownership Percentage: 6.30%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $23,044,750.00

Mirion Technologies Insider Trading History Chart

Mirion Technologies Share Price & Price History

^$25.51

▲ +0.385 (1.53%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

Mirion Technologies Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
11/21/2025	Lawrence D. Kingsley	Director	Sell	300,000	$23.83	$7,149,000.00	3,900,000
8/11/2025	Thomas D Logan	CEO	Sell	325,000	$21.31	$6,925,750.00	3,742,305
5/21/2025	Lawrence D. Kingsley	Director	Sell	500,000	$17.94	$8,970,000.00	61,287
10/31/2024	Emmanuelle Lee	Insider	Sell	3,405	$14.27	$48,589.35
10/24/2024	Thomas D. Logan	CEO	Sell	7,500	$14.11	$105,825.00	1,544,017
9/24/2024	Emmanuelle Lee	insider	Sell	5,000	$10.60	$53,000.00	138,193
9/24/2024	Thomas D. Logan	CEO	Sell	7,500	$10.47	$78,525.00	1,544,017
8/23/2024	Thomas D. Logan	CEO	Sell	7,500	$11.00	$82,500.00	1,544,017
8/6/2024	Loic Eloy	Insider	Sell	22,139	$9.91	$219,397.49	177,663
7/24/2024	Emmanuelle Lee	Insider	Sell	5,000	$10.80	$54,000.00
7/24/2024	Thomas D. Logan	CEO	Sell	7,500	$10.87	$81,525.00	1,544,017
6/26/2024	Emmanuelle Lee	insider	Sell	5,000	$10.76	$53,800.00	138,193
6/24/2024	Thomas D. Logan	CEO	Sell	7,500	$10.89	$81,675.00	1,544,017
6/13/2024	Christopher A. Moore	CAO	Sell	8,153	$10.29	$83,894.37	28,128
6/6/2024	Emmanuelle Lee	insider	Sell	5,000	$10.17	$50,850.00	138,193
5/28/2024	Thomas D. Logan	CEO	Sell	7,500	$10.86	$81,450.00	1,544,017
3/20/2024	Brian Schopfer	CFO	Sell	90,910	$11.00	$1,000,010.00	211,167
5/30/2023	Christopher A. Moore	CAO	Sell	3,430	$7.92	$27,165.60	32,206
3/7/2023	Charterhouse General Partners	Major Shareholder	Sell	9,786,153	$8.64	$84,552,361.92	14,960,702
12/8/2022	Gsam Holdings Llc	Director	Sell	2,700	$6.06	$16,362.00

SEC Filings (Institutional Ownership Changes) for Mirion Technologies (NYSE:MIR)

78.51% of Mirion Technologies stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Mirion Technologies Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
12/2/2025	Swiss Life Asset Management Ltd	9,832	$0.23M	0.0%	N/A	0.004%
12/1/2025	Polar Asset Management Partners Inc.	105,000	$2.44M	0.0%	-2.3%	0.041%
11/21/2025	CIBC Bancorp USA Inc.	25,060	$0.58M	0.0%	N/A	0.010%
11/21/2025	Ovata Capital Management Ltd	100,000	$2.33M	0.5%	N/A	0.039%
11/20/2025	Maven Securities LTD	275,000	$6.40M	0.2%	N/A	0.108%
11/18/2025	Advisory Services Network LLC	1,058	$25K	0.0%	N/A	0.000%
11/17/2025	NewEdge Advisors LLC	4,628	$0.11M	0.0%	N/A	0.002%
11/17/2025	CANADA LIFE ASSURANCE Co	324,608	$7.31M	0.0%	N/A	0.128%
11/17/2025	Zimmer Partners LP	200,000	$4.65M	0.1%	N/A	0.079%
11/17/2025	Alyeska Investment Group L.P.	3,127,745	$72.75M	0.2%	-29.7%	1.232%
11/17/2025	Verition Fund Management LLC	162,220	$3.77M	0.0%	-51.6%	0.064%
11/17/2025	Sandler Capital Management	76,526	$1.78M	0.5%	-14.4%	0.030%
11/17/2025	Polymer Capital Management US LLC	27,682	$0.64M	0.1%	N/A	0.011%
11/17/2025	Prelude Capital Management LLC	31,282	$0.73M	0.1%	N/A	0.012%
11/17/2025	Nomura Holdings Inc.	726,962	$16.91M	0.0%	+412.1%	0.286%
11/17/2025	Northern Trust Corp	2,349,786	$54.66M	0.0%	+21.6%	0.926%
11/17/2025	Mariner LLC	35,806	$0.83M	0.0%	-37.7%	0.014%
11/17/2025	Millennium Management LLC	521,021	$12.12M	0.0%	-81.9%	0.205%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	101,430	$2.36M	0.0%	-12.1%	0.040%
11/17/2025	Kingdon Capital Management L.L.C.	375,000	$8.72M	1.1%	-11.8%	0.148%
11/17/2025	Fortress Investment Group LLC	302,431	$7.04M	0.9%	+19,981.7%	0.119%
11/17/2025	Element Capital Management LLC	115,578	$2.69M	3.8%	N/A	0.046%
11/17/2025	Brevan Howard Capital Management LP	49,910	$1.16M	0.0%	+51.6%	0.020%
11/17/2025	Cooperman Leon G	8,383,441	$195M	6.1%	+17.7%	3.303%
11/17/2025	Centiva Capital LP	155,000	$3.61M	0.0%	+61.0%	0.061%
11/17/2025	Chescapmanager LLC	1,659,137	$38.59M	3.7%	+24.9%	0.654%
11/17/2025	Bamco Inc. NY	500,000	$11.63M	0.0%	N/A	0.197%
11/17/2025	Bank of America Corp DE	1,419,752	$33.02M	0.0%	+2.6%	0.559%
11/17/2025	Boothbay Fund Management LLC	28,952	$0.67M	0.0%	-69.8%	0.011%
11/17/2025	ArrowMark Colorado Holdings LLC	809,220	$18.82M	0.3%	-51.8%	0.319%
11/17/2025	Alliancebernstein L.P.	368,415	$8.57M	0.0%	+60.6%	0.145%
11/17/2025	Ameriprise Financial Inc.	1,717,192	$39.94M	0.0%	+559.9%	0.677%
11/14/2025	Creative Planning	130,540	$3.04M	0.0%	+24.3%	0.051%
11/14/2025	Lazard Asset Management LLC	299,956	$6.98M	0.0%	+37.6%	0.118%
11/14/2025	Polar Asset Management Partners Inc.	105,000	$2.44M	0.0%	-2.3%	0.041%
11/14/2025	SummitTX Capital L.P.	25,482	$0.59M	0.0%	-83.0%	0.010%
11/14/2025	Zacks Investment Management	407,098	$9.47M	0.1%	+7.3%	0.160%
11/14/2025	Raymond James Financial Inc.	1,731,206	$40.27M	0.0%	-12.2%	0.682%
11/14/2025	Virtu Financial LLC	27,771	$0.65M	0.0%	N/A	0.011%
11/14/2025	Fund 1 Investments LLC	43,900	$1.02M	0.1%	N/A	0.017%
11/14/2025	Freestone Grove Partners LP	77,415	$1.80M	0.0%	N/A	0.031%
11/14/2025	Burkehill Global Management LP	350,000	$8.14M	0.5%	N/A	0.138%
11/14/2025	California State Teachers Retirement System	197,969	$4.61M	0.0%	-2.7%	0.078%
11/14/2025	Davidson Kempner Capital Management LP	75,000	$1.74M	0.0%	N/A	0.030%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	40,963	$0.95M	0.0%	+6.7%	0.016%
11/14/2025	Alta Park Capital LP	611,161	$14.22M	1.2%	N/A	0.241%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	390,560	$9.08M	0.0%	-64.2%	0.154%
11/14/2025	Two Sigma Investments LP	298,500	$6.94M	0.0%	+941.9%	0.118%
11/14/2025	Concentric Capital Strategies LP	114,483	$2.66M	0.1%	-72.2%	0.045%
11/14/2025	Ghisallo Capital Management LLC	774,900	$18.02M	0.6%	N/A	0.305%
11/14/2025	Two Creeks Capital Management LP	3,598,763	$83.71M	6.0%	N/A	1.418%
11/14/2025	Comerica Bank	179,306	$4.17M	0.0%	+7,272.8%	0.071%
11/14/2025	Pinnbrook Capital Management LP	335,070	$7.79M	0.9%	N/A	0.132%
11/14/2025	FORA Capital LLC	9,436	$0.22M	0.0%	-84.0%	0.004%
11/14/2025	Glenmede Investment Management LP	11,959	$0.28M	0.0%	N/A	0.005%
11/13/2025	Pathstone Holdings LLC	148,621	$3.46M	0.0%	+7.2%	0.059%
11/13/2025	Kennedy Capital Management LLC	124,571	$2.90M	0.1%	N/A	0.049%
11/13/2025	Arrowstreet Capital Limited Partnership	2,001,858	$46.56M	0.0%	-12.2%	0.789%
11/13/2025	Invesco Ltd.	2,756,890	$64.13M	0.0%	+5.3%	1.086%
11/13/2025	Pier Capital LLC	794,826	$18.49M	2.9%	-8.7%	0.313%
11/13/2025	Sei Investments Co.	347,699	$8.09M	0.0%	-1.0%	0.137%
11/13/2025	UBS Group AG	4,796,833	$111.57M	0.0%	+181.4%	1.890%
11/13/2025	BNP Paribas Financial Markets	217,951	$5.07M	0.0%	+46.9%	0.086%
11/13/2025	Franklin Resources Inc.	1,040,067	$24.19M	0.0%	+55.7%	0.410%
11/13/2025	Van ECK Associates Corp	10,500	$0.24M	0.0%	N/A	0.004%
11/13/2025	Legal & General Group Plc	616,530	$14.34M	0.0%	+153.9%	0.243%
11/13/2025	Swiss National Bank	415,500	$9.67M	0.0%	+1.6%	0.164%
11/13/2025	Russell Investments Group Ltd.	19,845	$0.46M	0.0%	+22,710.3%	0.008%
11/13/2025	Schroder Investment Management Group	1,168,708	$26.28M	0.0%	+4.3%	0.460%
11/13/2025	Natixis Advisors LLC	14,096	$0.33M	0.0%	N/A	0.006%
11/13/2025	Hel Ved Capital Management Ltd	49,800	$1.16M	0.2%	N/A	0.020%
11/13/2025	First Trust Advisors LP	269,201	$6.26M	0.0%	+41.7%	0.106%
11/12/2025	Gabelli Funds LLC	481,250	$11.19M	0.1%	-5.9%	0.190%
11/12/2025	Gamco Investors INC. ET AL	526,619	$12.25M	0.1%	-6.3%	0.207%
11/12/2025	Barclays PLC	401,286	$9.33M	0.0%	-2.5%	0.158%
11/12/2025	Corient IA LLC	10,000	$0.23M	0.2%	-83.3%	0.004%
11/12/2025	Dimensional Fund Advisors LP	6,206,933	$144.36M	0.0%	-10.7%	2.446%
11/12/2025	Legato Capital Management LLC	188,037	$4.37M	0.5%	+24.8%	0.074%
11/12/2025	Teachers Retirement System of The State of Kentucky	52,500	$1.22M	0.0%	N/A	0.021%
11/12/2025	Victory Capital Management Inc.	1,082,626	$25.18M	0.0%	+12.9%	0.427%
11/12/2025	CI Investments Inc.	96,565	$2.25M	0.0%	+82.7%	0.038%
11/12/2025	Segall Bryant & Hamill LLC	1,116,098	$25.96M	0.3%	+2.5%	0.440%
11/12/2025	Royce & Associates LP	152,083	$3.54M	0.0%	-80.8%	0.060%
11/12/2025	Monashee Investment Management LLC	100,000	$2.33M	1.2%	N/A	0.039%
11/12/2025	American Century Companies Inc.	3,229,538	$75.12M	0.0%	-4.3%	1.272%
11/12/2025	Keystone Investors PTE Ltd.	881,593	$20.51M	2.4%	N/A	0.347%
11/12/2025	Aster Capital Management DIFC Ltd	8,070	$0.19M	0.1%	N/A	0.003%
11/12/2025	Handelsbanken Fonder AB	72,531	$1.69M	0.0%	+18.8%	0.029%
11/12/2025	Xponance Inc.	17,360	$0.40M	0.0%	+4.2%	0.007%
11/12/2025	Integrated Advisors Network LLC	9,538	$0.22M	0.0%	-21.6%	0.004%
11/12/2025	Sumitomo Life Insurance Co.	81,691	$1.90M	0.1%	+26.7%	0.032%
11/12/2025	Intech Investment Management LLC	94,526	$2.20M	0.0%	-26.1%	0.037%
11/12/2025	US Bancorp DE	6,874	$0.16M	0.0%	+6.6%	0.003%
11/10/2025	TD Asset Management Inc	486,944	$11.33M	0.0%	+13.0%	0.208%
11/10/2025	AXQ Capital LP	16,795	$0.39M	0.1%	-37.0%	0.007%
11/10/2025	EverSource Wealth Advisors LLC	2,056	$48K	0.0%	+25.2%	0.001%
11/10/2025	Ameritas Investment Partners Inc.	19,840	$0.46M	0.0%	-7.5%	0.008%
11/10/2025	Premier Fund Managers Ltd	28,152	$0.63M	0.0%	+48.7%	0.012%
11/10/2025	Citigroup Inc.	480,372	$11.17M	0.0%	+86.8%	0.205%
11/7/2025	Bornite Capital Management LP	500,000	$11.63M	1.1%	-75.6%	0.214%

Data available starting January 2016

Mirion Technologies, Inc. provides radiation detection, measurement, analysis, and monitoring products and services in the United States, Canada, the United Kingdom, France, Germany, Finland, China, Belgium, Netherlands, Estonia, South Korea, and Japan. It operates through two segments, Medical and Technologies. The Medical segment offers radiation oncology quality assurance and dosimetry solutions; patient safety solutions for diagnostic imaging and radiation therapy centers; radiation therapy quality assurance solutions for calibrating and verifying imaging and treatment accuracy; and radionuclide therapy products for nuclear medicine applications, such as shielding, product handling, medical imaging furniture, and rehabilitation products. This segment supports applications in medical diagnostics, cancer treatment, practitioner safety, and rehabilitation. The Technologies segment focuses on addressing critical radiation safety, measurement, and analysis applications; and provides personal radiation detection, identification equipment, and analysis tools. The company's products and solutions also include nuclear medicines, dosimeters, contamination and clearance monitors, reactor instrumentation and control equipment and systems, medical and industrial imaging systems and related accessories, alpha spectroscopy instruments, alpha/beta counting instruments, and gamma spectroscopy detector systems; and electrical penetration, cancer diagnostics, software, and other services. It serves hospitals, clinics and urgent care facilities, dental and veterinary offices, radiation treatment facilities, OEMs for radiation therapy, laboratories, military organizations, government agencies, industrial companies, power and utility companies, reactor design firms, and NPPs. The company was formerly known as Global Monitoring Systems, Inc. and changed its name to Mirion Technologies, Inc. in January 2006. The company was incorporated in 2005 and is headquartered in Atlanta, Georgia.

Today's Range

Now: $25.51

$24.97

$25.75

50 Day Range

MA: $25.11

$22.47

$29.71

52 Week Range

Now: $25.51

$12.00

$30.28

Volume

2,837,425 shs

Average Volume

3,584,285 shs

Market Capitalization

$6.47 billion

P/E Ratio

231.88

Dividend Yield

N/A

Beta

0.94

Who are the company insiders with the largest holdings of Mirion Technologies?: Mirion Technologies' top insider investors include:
Lawrence D Kingsley (Director)
Thomas D Logan (CEO)
Thomas D Logan (CEO)
Brian Schopfer (CFO)
Loic Eloy (Insider)
Emmanuelle Lee (Insider)
Christopher A Moore (CAO)
Learn More about top insider investors at Mirion Technologies.
Who are the major institutional investors of Mirion Technologies?: Mirion Technologies' top institutional investors include:
Vanguard Group Inc. — 13.00%
Cooperman Leon G — 3.30%
Dimensional Fund Advisors LP — 2.45%
Massachusetts Financial Services Co. MA — 2.30%
UBS Group AG — 1.89%
Swedbank AB — 1.71%
Learn More about top institutional investors of Mirion Technologies stock.
Which major investors are selling Mirion Technologies stock?: During the previous quarter, MIR stock was sold by these institutional investors:
Millennium Management LLC
Bornite Capital Management LP
Alyeska Investment Group L.P.
ArrowMark Colorado Holdings LLC
Dimensional Fund Advisors LP
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Royce & Associates LP
JPMorgan Chase & Co.
Within the previous year, company insiders that have sold Mirion Technologies company stock include:
Lawrence D Kingsley (Director)
Thomas D Logan (CEO)
Learn More investors selling Mirion Technologies stock.
Which major investors are buying Mirion Technologies stock?: In the previous quarter, MIR stock was bought by institutional investors including:
Vanguard Group Inc.
Two Creeks Capital Management LP
UBS Group AG
Massachusetts Financial Services Co. MA
Ameriprise Financial Inc.
Conestoga Capital Advisors LLC
Principal Financial Group Inc.
Cooperman Leon G