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MIR Insider Trading

Insider Ownership Percentage: 6.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $22,895,226.00

Mirion Technologies Insider Trading History Chart

This chart shows the insider buying and selling history at Mirion Technologies by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Mirion Technologies Share Price & Price History

Current Price: $18.50
Price Change: ▼ Price Decrease of -0.107 (-0.57%)
As of 06/18/2026 03:59 PM ET

This chart shows the closing price history over time for MIR up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Mirion Technologies Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/7/2026Christopher A. MooreCAOSell8,400$19.64$164,976.0022,157View SEC Filing Icon  
12/10/2025Lawrence D. KingsleyDirectorSell350,000$24.73$8,655,500.003,509,075View SEC Filing Icon  
11/21/2025Lawrence D. KingsleyDirectorSell300,000$23.83$7,149,000.003,900,000View SEC Filing Icon  
8/11/2025Thomas D LoganCEOSell325,000$21.31$6,925,750.003,742,305View SEC Filing Icon  
5/21/2025Lawrence D. KingsleyDirectorSell500,000$17.94$8,970,000.0061,287View SEC Filing Icon  
10/31/2024Emmanuelle LeeInsiderSell3,405$14.27$48,589.35View SEC Filing Icon  
10/24/2024Thomas D. LoganCEOSell7,500$14.11$105,825.001,544,017View SEC Filing Icon  
9/24/2024Emmanuelle LeeinsiderSell5,000$10.60$53,000.00138,193View SEC Filing Icon  
9/24/2024Thomas D. LoganCEOSell7,500$10.47$78,525.001,544,017View SEC Filing Icon  
8/23/2024Thomas D. LoganCEOSell7,500$11.00$82,500.001,544,017View SEC Filing Icon  
8/6/2024Loic EloyInsiderSell22,139$9.91$219,397.49177,663View SEC Filing Icon  
7/24/2024Emmanuelle LeeInsiderSell5,000$10.80$54,000.00View SEC Filing Icon  
7/24/2024Thomas D. LoganCEOSell7,500$10.87$81,525.001,544,017View SEC Filing Icon  
6/26/2024Emmanuelle LeeinsiderSell5,000$10.76$53,800.00138,193View SEC Filing Icon  
6/24/2024Thomas D. LoganCEOSell7,500$10.89$81,675.001,544,017View SEC Filing Icon  
6/13/2024Christopher A. MooreCAOSell8,153$10.29$83,894.3728,128View SEC Filing Icon  
6/6/2024Emmanuelle LeeinsiderSell5,000$10.17$50,850.00138,193View SEC Filing Icon  
5/28/2024Thomas D. LoganCEOSell7,500$10.86$81,450.001,544,017View SEC Filing Icon  
3/20/2024Brian SchopferCFOSell90,910$11.00$1,000,010.00211,167View SEC Filing Icon  
See Full Table

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

This chart shows the instiutional buying and selling at MIR by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Mirion Technologies Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/18/2026Pacer Advisors Inc.64,182$1.19M0.0%-19.9%0.026%Search for SEC Filing on Google Icon
5/22/2026Segall Bryant & Hamill LLC1,111,874$20.67M0.3%-4.9%0.444%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE1,355,298$25.20M0.0%-0.3%0.541%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC4,043,089$75.16M0.0%-12.0%1.615%Search for SEC Filing on Google Icon
5/19/2026Altshuler Shaham Ltd13,147$0.24M0.0%+12.3%0.005%Search for SEC Filing on Google Icon
5/18/2026Amundi36,691$0.68M0.0%+198.3%0.015%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System274,096$5.10M0.0%+22.2%0.109%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada1,961,404$36.46M0.0%-8.7%0.783%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC26,950$0.50M0.0%-90.3%0.011%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 111,658$2.08M0.0%-3.4%0.045%Search for SEC Filing on Google Icon
5/16/2026Maverick Capital Ltd.2,649,879$49.26M0.6%N/A1.058%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP41,705$0.78M0.0%+269.5%0.017%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC322,421$5.99M0.0%+125.4%0.129%Search for SEC Filing on Google Icon
5/15/2026Rice Hall James & Associates LLC196,899$3.66M0.2%-1.5%0.079%Search for SEC Filing on Google Icon
5/15/2026Themes Management Co LLC38,837$0.72M0.4%+57.0%0.016%Search for SEC Filing on Google Icon
5/15/2026Entropy Technologies LP38,507$0.72M0.0%N/A0.015%Search for SEC Filing on Google Icon
5/14/2026Gabelli Funds LLC367,980$6.84M0.0%-14.5%0.147%Search for SEC Filing on Google Icon
5/14/2026Gamco Investors INC. ET AL544,662$10.13M0.1%+0.5%0.217%Search for SEC Filing on Google Icon
5/14/2026Bank of Nova Scotia380,186$7.07M0.0%-2.8%0.152%Search for SEC Filing on Google Icon
5/14/2026Gibbs Wealth Management23,922$0.45M0.1%N/A0.010%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.458,359$8.52M0.0%+0.4%0.183%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming6,375$0.12M0.0%-10.1%0.003%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers24,978$0.46M0.0%+26.7%0.010%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP146,993$2.73M0.0%-57.8%0.059%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.21,485$0.40M0.0%+17.6%0.009%Search for SEC Filing on Google Icon
5/8/2026Madison Asset Management LLC124,323$2.31M0.0%+119.5%0.050%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP4,694,288$87.24M0.0%+14.4%1.874%Search for SEC Filing on Google Icon
5/7/2026KBC Group NV153,925$2.86M0.0%+1,907.1%0.061%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank465,900$8.66M0.0%+0.4%0.186%Search for SEC Filing on Google Icon
5/6/2026Jennison Associates LLC942,696$17.53M0.0%-5.0%0.376%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.3,454$64K0.0%+8,123.8%0.001%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC1,059,030$19.76M0.0%+2.8%0.423%Search for SEC Filing on Google Icon
5/5/2026Bastion Asset Management Inc.389,158$7.29M2.2%N/A0.155%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp4,536,732$84.34M0.0%+47.4%1.811%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund126,334$2.35M0.0%-7.9%0.050%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC29,619$0.55M0.0%-1.9%0.012%Search for SEC Filing on Google Icon
5/5/2026Maryland State Retirement & Pension System35,626$0.66M0.0%-1.8%0.014%Search for SEC Filing on Google Icon
5/4/2026Emerald Mutual Fund Advisers Trust873,466$16.24M0.8%+24.0%0.349%Search for SEC Filing on Google Icon
5/4/2026Emerald Advisers LLC1,381,574$25.68M0.8%+21.5%0.551%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.1,196,049$22.24M0.0%-30.0%0.477%Search for SEC Filing on Google Icon
5/4/2026Schwartz Investment Counsel Inc.854,300$15.88M0.6%+7.6%0.341%Search for SEC Filing on Google Icon
5/1/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS60,504$1.13M0.0%-1.4%0.024%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp227,118$4.22M0.0%+20,016.7%0.091%Search for SEC Filing on Google Icon
5/1/2026Kornitzer Capital Management Inc. KS174,665$3.25M0.1%N/A0.070%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund55,900$1.04M0.0%-1.4%0.022%Search for SEC Filing on Google Icon
4/29/2026Swedbank AB3,159,950$58.74M0.1%-7.0%1.261%Search for SEC Filing on Google Icon
4/28/2026Marietta Investment Partners LLC14,833$0.28M0.1%-25.7%0.006%Search for SEC Filing on Google Icon
4/28/2026Stephens Investment Management Group LLC1,374,876$25.56M0.4%+69.7%0.549%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System89,717$1.67M0.0%-8.3%0.036%Search for SEC Filing on Google Icon
4/27/2026Elevation Point Wealth Partners LLC15,890$0.30M0.0%N/A0.006%Search for SEC Filing on Google Icon
4/25/2026Strs Ohio15,000$0.28M0.0%-27.5%0.006%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH13,038$0.24M0.0%-4.8%0.005%Search for SEC Filing on Google Icon
4/24/2026Conestoga Capital Advisors LLC1,831,019$34.04M0.7%-5.6%0.731%Search for SEC Filing on Google Icon
4/24/2026Peregrine Capital Management LLC462,383$8.60M0.3%+14.7%0.185%Search for SEC Filing on Google Icon
4/22/2026Janney Montgomery Scott LLC21,039$0.39M0.0%-5.9%0.008%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA35,491$0.66M0.0%+6.3%0.014%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC38,236$0.71M0.0%-44.4%0.015%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System108,500$2.02M0.0%N/A0.043%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.1,139,037$26.68M0.0%+17.2%0.455%Search for SEC Filing on Google Icon
3/10/2026Montanaro Asset Management Ltd255,400$5.98M1.7%+48.8%0.102%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC14,510$0.34M0.0%+16.9%0.006%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.80,127$1.88M0.0%N/A0.032%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.15,112,855$353.94M0.2%-29.9%5.955%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.3,101,120$72.63M0.0%+12.5%1.222%Search for SEC Filing on Google Icon
2/19/2026Corient Private Wealth LLC14,510$0.34M0.0%+16.9%0.006%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC14,128$0.33M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury74,501$1.85M0.0%+29.7%0.029%Search for SEC Filing on Google Icon
2/18/2026NewEdge Advisors LLC3,251$76K0.0%-29.8%0.001%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC278,820$6.53M0.1%-4.2%0.110%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd125,020$2.93M0.1%N/A0.049%Search for SEC Filing on Google Icon
2/18/2026Zacks Investment Management402,207$9.42M0.1%-1.2%0.158%Search for SEC Filing on Google Icon
2/18/2026VARCOV Co.10,838$0.25M0.1%N/A0.004%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP248,775$5.83M0.0%N/A0.098%Search for SEC Filing on Google Icon
2/18/2026Toronto Dominion Bank17,746$0.42M0.0%N/A0.007%Search for SEC Filing on Google Icon
2/18/2026Twinbeech Capital LP57,100$1.34M0.1%N/A0.022%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC4,596,949$107.66M0.0%-40.0%1.811%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC93,039$2.18M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/18/2026Bamco Inc. NY650,000$15.22M0.0%+30.0%0.256%Search for SEC Filing on Google Icon
2/18/2026Boothbay Fund Management LLC173,855$4.07M0.1%+500.5%0.069%Search for SEC Filing on Google Icon
2/18/2026Ardsley Advisory Partners LP325,000$7.61M0.8%-1.0%0.128%Search for SEC Filing on Google Icon
2/18/2026Alta Park Capital LP562,522$13.17M1.6%-8.0%0.222%Search for SEC Filing on Google Icon
2/18/2026Altshuler Shaham Ltd11,704$0.27M0.0%+5.1%0.005%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC9,198$0.22M0.0%N/A0.004%Search for SEC Filing on Google Icon
2/17/2026Integrated Advisors Network LLC8,957$0.21M0.0%-6.1%0.004%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC277,719$6.50M0.0%-5.0%0.109%Search for SEC Filing on Google Icon
2/17/2026Troluce Capital Advisors LLC850,000$19.91M12.6%N/A0.335%Search for SEC Filing on Google Icon
2/17/2026Cetera Investment Advisers19,707$0.46M0.0%+10.3%0.008%Search for SEC Filing on Google Icon
2/17/2026Lazard Asset Management LLC143,063$3.35M0.0%-52.3%0.056%Search for SEC Filing on Google Icon
2/17/2026Sandler Capital Management15,194$0.36M0.1%-80.1%0.006%Search for SEC Filing on Google Icon
2/17/2026ArrowMark Colorado Holdings LLC716,065$16.77M0.4%-11.5%0.282%Search for SEC Filing on Google Icon
2/17/2026TCW Group Inc.2,452,579$57.44M0.4%N/A0.966%Search for SEC Filing on Google Icon
2/17/2026Amundi12,300$0.29M0.0%N/A0.005%Search for SEC Filing on Google Icon
2/17/2026FIL Ltd100,000$2.34M0.0%-82.2%0.039%Search for SEC Filing on Google Icon
2/17/2026Laurion Capital Management LP28,188$0.66M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/17/2026T. Rowe Price Investment Management Inc.2,329,002$54.55M0.1%-89.2%0.918%Search for SEC Filing on Google Icon
2/17/2026Weiss Asset Management LP9,720$0.23M0.0%N/A0.004%Search for SEC Filing on Google Icon
2/17/2026Ghisallo Capital Management LLC250,000$5.86M0.3%-67.7%0.099%Search for SEC Filing on Google Icon
2/17/2026Public Employees Retirement System of Ohio5,226$0.12M0.0%+670.8%0.002%Search for SEC Filing on Google Icon
2/17/2026Corsair Capital Management L.P.982,419$23.01M3.6%-6.1%0.387%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System224,345$5.25M0.0%+13.3%0.088%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Mirion Technologies logo
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.
Read More on Mirion Technologies

Today's Range

Now: $18.50
Low: $17.69
High: $19.14

50 Day Range

MA: $18.46
Low: $15.83
High: $20.46

52 Week Range

Now: $18.50
Low: $15.58
High: $30.28

Volume

8,559,855 shs

Average Volume

4,018,043 shs

Market Capitalization

$4.63 billion

P/E Ratio

185.03

Dividend Yield

N/A

Beta

1.03

Who are the company insiders with the largest holdings of Mirion Technologies?

Mirion Technologies' top insider investors include:
  1. Charterhouse General Partners (Major Shareholder)
  2. Lawrence D Kingsley (Director)
  3. Thomas D Logan (CEO)
  4. Thomas D Logan (CEO)
  5. Brian Schopfer (CFO)
  6. Loic Eloy (Insider)
  7. Emmanuelle Lee (Insider)
  8. Christopher A Moore (CAO)
  9. Gsam Holdings Llc (Director)
Learn More about top insider investors at Mirion Technologies.

Who are the major institutional investors of Mirion Technologies?

Mirion Technologies' top institutional investors include:
  1. Dimensional Fund Advisors LP — 1.87%
  2. Bank of New York Mellon Corp — 1.81%
  3. Janus Henderson Group PLC — 1.61%
  4. Swedbank AB — 1.26%
  5. Maverick Capital Ltd. — 1.06%
  6. Royal Bank of Canada — 0.78%
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:
  1. Janus Henderson Group PLC
  2. Principal Financial Group Inc.
  3. Empowered Funds LLC
  4. Swedbank AB
  5. First Trust Advisors LP
  6. Royal Bank of Canada
  7. Conestoga Capital Advisors LLC
  8. Gabelli Funds LLC
Within the previous year, company insiders that have sold Mirion Technologies company stock include:
  1. Lawrence D Kingsley (Director)
  2. Thomas D Logan (CEO)
  3. Christopher A Moore (CAO)
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:
  1. Maverick Capital Ltd.
  2. Bank of New York Mellon Corp
  3. Dimensional Fund Advisors LP
  4. Stephens Investment Management Group LLC
  5. Bastion Asset Management Inc.
  6. Emerald Advisers LLC
  7. Fifth Third Bancorp
  8. Lazard Asset Management LLC

Mirion Technologies Active Insiders

Thomas D. Logan
Founding Chairman, Chief Executive Officer and Director
Loic Eloy
Loic Eloy
Technologies Group President
Brian Schopfer
CFO
Christopher A Moore
CAO
1 recent trades
Lawrence D Kingsley
Director
Emmanuelle Lee
Emmanuelle Lee
Chief Legal Officer & Chief Compliance Officer
Mr. Thomas D. Logan
Mr. Thomas D. Logan
Founder