Mirion Technologies Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:MIR Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
10 Dec 25	SellUS$8,654,800	Lawrence Kingsley	Individual	350,000	US$24.73
21 Nov 25	SellUS$7,148,400	Lawrence Kingsley	Individual	300,000	US$23.83
11 Nov 25	SellUS$1,225,683	Loic Eloy	Individual	45,000	US$27.24
12 Aug 25	SellUS$10,740,783	Thomas Logan	Individual	500,000	US$21.79
05 Aug 25	SellUS$472,138	Loic Eloy	Individual	22,166	US$21.30
21 May 25	SellUS$8,972,350	Lawrence Kingsley	Individual	500,000	US$17.95

Insider Trading Volume

Insider Buying: MIR insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of MIR?
Owner Type	Number of Shares	Ownership Percentage
State or Government	57,420	0.0213%
Public Companies	5,187,419	1.92%
Individual Insiders	8,074,150	3%
Institutions	256,163,497	95.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 83.37% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
15.9%	BlackRock, Inc.	36,430,491	US$909.1m	114%	0.01%
13.3%	The Vanguard Group, Inc.	30,418,327	US$759.1m	28%	0.01%
9.78%	T. Rowe Price Group, Inc.	22,400,972	US$559.0m	6.03%	0.04%
3.96%	FMR LLC	9,073,656	US$226.4m	863%	0.01%
3.85%	State Street Global Advisors, Inc.	8,816,346	US$220.0m	73.1%	0.01%
3.66%	Omega Advisors, Inc.	8,383,441	US$209.2m	17.7%	7.76%
3.34%	Janus Henderson Group plc	7,661,937	US$191.2m	-4.09%	0.07%
2.71%	Dimensional Fund Advisors LP	6,206,933	US$154.9m	-10.7%	0.02%
2.46%	Geode Capital Management, LLC	5,628,909	US$140.5m	18.8%	0.01%
2.35%	Massachusetts Financial Services Company	5,391,772	US$134.6m	40.6%	0.03%
2.26%	The Goldman Sachs Group, Inc.	5,187,419	US$129.5m	0%	0.05%
2.26%	UBS Asset Management AG	5,187,393	US$129.5m	85.6%	0.01%
1.77%	Goldman Sachs Asset Management, L.P.	4,049,829	US$101.1m	2,540%	0.02%
1.75%	Swedbank Robur Fonder AB	4,005,200	US$99.9m	-2.93%	0.05%
1.57%	Two Creeks Capital Management, LP	3,598,763	US$89.8m	0%	6.86%
1.56%	Lawrence Kingsley	3,565,229	US$89.0m	-16.2%	no data
1.41%	American Century Investment Management Inc	3,229,538	US$80.6m	-4.26%	0.03%
1.37%	Thomas Logan	3,149,528	US$78.6m	-3.26%	no data
1.37%	Alyeska Investment Group, L.P.	3,127,745	US$78.1m	-29.7%	0.23%
1.21%	Hood River Capital Management LLC	2,763,284	US$69.0m	87.9%	0.73%
1.21%	Loomis Sayles & Company, L.P.	2,761,535	US$68.9m	73.5%	0.08%
1.19%	Brown Advisory Incorporated	2,719,972	US$67.9m	-49.6%	0.09%
1.13%	Maverick Capital, Ltd.	2,588,579	US$64.6m	-51.2%	0.81%
1.03%	Northern Trust Global Investments	2,349,786	US$58.6m	21.6%	0.01%
1%	Lord, Abbett & Co. LLC	2,288,182	US$57.1m	-6.97%	0.16%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/12/16 06:45
End of Day Share Price	2025/12/16 00:00
Earnings	2025/09/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Mirion Technologies, Inc. is covered by 9 analysts. 5 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Robert Mason	Baird
Yuan Zhi	B. Riley Securities, Inc.
Andrew Kaplowitz	Citigroup Inc