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Mirion Technologies (MIR) Institutional Ownership

Mirion Technologies logo
$24.84 +0.41 (+1.69%)
Closing price 10/14/2025 03:58 PM Eastern
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$24.84 +0.00 (+0.01%)
As of 10/14/2025 07:56 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Mirion Technologies (NYSE:MIR)

Current
Institutional Ownership
Percentage
78.51%
Number of
Institutional Buyers
(last 12 months)
195
Total
Institutional Inflows
(last 12 months)
$1.08B
Number of
Institutional Sellers
(last 12 months)
78
Total
Institutional Outflows
(last 12 months)
$697.15M
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MIR Institutional Buying and Selling by Quarter

Mirion Technologies Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/14/2025Yousif Capital Management LLC74,991$1.74M0.0%N/A0.032%
10/14/2025Farther Finance Advisors LLC1,651$38K0.0%+96.5%0.001%
10/14/2025Exchange Traded Concepts LLC253,080$5.89M0.1%+39.5%0.108%
10/9/2025 Zevenbergen Capital Investments LLC231,500$5.39M0.1%+2,169.6%0.099%
10/9/2025 Voya Investment Management LLC42,496$988K0.0%-26.1%0.018%
9/4/2025Osaic Holdings Inc.5,802$125K0.0%+803.7%0.002%
9/2/2025FSC Wealth Advisors LLC2,744$59K0.0%N/A0.001%
8/27/2025Munro Partners121,875$2.62M0.1%N/A0.052%
8/19/2025State of Wyoming6,233$134K0.0%-92.3%0.003%
8/18/2025Nomura Holdings Inc.141,946$3.06M0.0%N/A0.061%
8/16/2025FORA Capital LLC58,903$1.27M0.1%N/A0.025%
8/15/2025Tower Research Capital LLC TRC 39,878$859K0.0%+613.9%0.017%
8/15/2025Captrust Financial Advisors10,204$220K0.0%N/A0.004%
8/15/2025Tidal Investments LLC21,274$458K0.0%+23.6%0.009%
8/15/2025Select Equity Group L.P.2,027,559$43.65M0.2%-11.5%0.867%
8/15/2025Smartleaf Asset Management LLC6,146$133K0.0%+18.1%0.003%
8/15/2025Sandler Capital Management89,356$1.92M0.5%-50.8%0.038%
8/15/2025Moore Capital Management LP407,413$8.77M0.1%N/A0.174%
8/15/2025Lazard Asset Management LLC218,031$4.69M0.0%+13.7%0.093%
8/15/2025Fortress Investment Group LLC1,506$32K0.0%N/A0.001%
8/15/2025BNP Paribas Financial Markets148,395$3.20M0.0%+1,003.6%0.063%
8/15/2025Boothbay Fund Management LLC95,790$2.06M0.0%N/A0.041%
8/15/2025Brevan Howard Capital Management LP32,925$709K0.0%N/A0.014%
8/15/2025Balyasny Asset Management L.P.167,245$3.60M0.0%+2.0%0.071%
8/15/2025Bank of America Corp DE1,383,213$29.78M0.0%+135.0%0.591%
8/15/2025Ameriprise Financial Inc.260,205$5.60M0.0%+133.1%0.111%
8/15/2025AQR Capital Management LLC312,260$6.72M0.0%+56.7%0.133%
8/14/2025TENOR CAPITAL MANAGEMENT Co. L.P.42,998$926K0.0%N/A0.018%
8/14/2025California State Teachers Retirement System203,402$4.38M0.0%+14.7%0.087%
8/14/2025Raymond James Financial Inc.1,972,536$42.47M0.0%+14.8%0.843%
8/14/2025Maverick Capital Ltd.5,308,038$114.28M1.7%-36.8%2.269%
8/14/2025Soros Fund Management LLC71,700$1.54M0.0%N/A0.031%
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.115,332$2.48M0.0%-6.2%0.049%
8/14/2025The Manufacturers Life Insurance Company 111,723$2.41M0.0%-4.9%0.048%
8/14/2025Sei Investments Co.351,039$7.56M0.0%+127.2%0.150%
8/14/2025Ardsley Advisory Partners LP463,220$9.97M1.3%+164.7%0.198%
8/14/2025Aperture Investors LLC345,000$7.43M1.0%-3.5%0.147%
8/14/2025Qube Research & Technologies Ltd463,977$9.99M0.0%-28.6%0.198%
8/14/2025State Street Corp5,094,072$109.68M0.0%-0.9%2.177%
8/14/2025Daiwa Securities Group Inc.75,700$1.63M0.0%N/A0.032%
8/14/2025Hood River Capital Management LLC1,470,273$31.66M0.4%N/A0.628%
8/14/2025Cerity Partners LLC11,731$253K0.0%N/A0.005%
8/13/2025Gabelli Funds LLC511,314$11.01M0.1%-2.5%0.219%
8/13/2025Gamco Investors INC. ET AL562,074$12.10M0.1%-5.1%0.240%
8/13/2025Bosun Asset Management LLC38,191$822K0.2%+47.3%0.016%
8/13/2025Cresset Asset Management LLC42,500$915K0.0%-27.4%0.018%
8/13/2025Brown Advisory Inc.5,400,405$116.27M0.2%-2.9%2.308%
8/13/2025Baird Financial Group Inc.12,559$270K0.0%N/A0.005%
8/13/2025Walleye Capital LLC81,997$1.77M0.0%-71.4%0.035%
8/13/2025First Trust Advisors LP190,035$4.09M0.0%-40.1%0.081%
8/13/2025EverSource Wealth Advisors LLC1,642$35K0.0%+470.1%0.001%
8/13/2025Invesco Ltd.2,617,252$56.35M0.0%+713.2%1.119%
8/13/2025Arrowstreet Capital Limited Partnership2,281,180$49.11M0.0%-18.2%0.975%
8/13/2025HBK Investments L P42,998$926K0.0%N/A0.018%
8/13/2025New York State Common Retirement Fund133,181$2.87M0.0%+13.8%0.057%
8/13/2025Schroder Investment Management Group1,120,605$24.13M0.0%-0.2%0.479%
8/13/2025Loomis Sayles & Co. L P1,591,688$34.27M0.0%N/A0.680%
8/13/2025Hsbc Holdings PLC20,426$443K0.0%-14.8%0.009%
8/13/2025Corsair Capital Management L.P.3,025,412$65.14M12.5%-1.5%1.293%
8/13/2025Groupama Asset Managment800,000$17.22M0.1%N/A0.342%
8/12/2025Ameritas Investment Partners Inc.21,455$462K0.0%+2.7%0.009%
8/12/2025Prudential Financial Inc.27,010$582K0.0%+69.4%0.012%
8/12/2025American Century Companies Inc.3,373,352$72.63M0.0%-1.7%1.442%
8/12/2025Segall Bryant & Hamill LLC1,089,217$23.45M0.3%+53.1%0.466%
8/12/2025Rhumbline Advisers318,602$6.86M0.0%+3.6%0.136%
8/12/2025AXQ Capital LP26,654$574K0.2%N/A0.011%
8/12/2025Franklin Resources Inc.668,159$14.39M0.0%N/A0.286%
8/12/2025Legal & General Group Plc242,824$5.23M0.0%+3.9%0.104%
8/12/2025Neo Ivy Capital Management132,188$2.85M0.9%N/A0.056%
8/12/2025JPMorgan Chase & Co.825,269$17.77M0.0%+187.2%0.353%
8/12/2025Swiss National Bank408,800$8.80M0.0%+4.0%0.175%
8/12/2025Highbridge Capital Management LLC57,352$1.24M0.1%N/A0.025%
8/12/2025Ensign Peak Advisors Inc601,248$12.95M0.0%+21.2%0.257%
8/11/2025FSC Wealth Advisors LLC2,744$59K0.0%N/A0.001%
8/11/2025Universal Beteiligungs und Servicegesellschaft mbH240,549$5.18M0.0%+894.5%0.104%
8/8/2025Rockefeller Capital Management L.P.25,395$547K0.0%-97.3%0.011%
8/8/2025Cetera Investment Advisers13,398$288K0.0%N/A0.006%
8/8/2025Creative Planning104,996$2.26M0.0%+83.1%0.045%
8/8/2025Calamos Advisors LLC44,400$956K0.0%N/A0.019%
8/8/2025Police & Firemen s Retirement System of New Jersey47,951$1.03M0.0%+8.7%0.021%
8/8/2025Bailard Inc.17,748$382K0.0%N/A0.008%
8/8/2025Geode Capital Management LLC4,739,240$102.05M0.0%+0.0%2.043%
8/8/2025PNC Financial Services Group Inc.16,812$362K0.0%-26.6%0.007%
8/8/2025KBC Group NV6,348$137K0.0%-39.5%0.003%
8/7/2025Robeco Schweiz AG230,000$4.95M0.1%N/A0.099%
8/7/2025ProShare Advisors LLC43,091$928K0.0%-3.6%0.019%
8/7/2025Bornite Capital Management LP2,051,700$44.17M4.4%-0.6%0.885%
8/7/2025Connor Clark & Lunn Investment Management Ltd.102,225$2.20M0.0%N/A0.044%
8/6/2025Summit Investment Advisors Inc.20,898$303K0.2%-3.3%0.009%
8/6/2025Savant Capital LLC22,329$481K0.0%N/A0.010%
8/5/2025Bank of Montreal Can65,640$1.41M0.0%N/A0.028%
8/5/2025Sumitomo Life Insurance Co.64,495$1.39M0.1%+184.4%0.028%
8/5/2025Pier Capital LLC871,028$18.75M2.9%-7.5%0.376%
8/4/2025Wolverine Asset Management LLC89,452$1.93M0.0%+86.4%0.039%
8/4/2025Simon Quick Advisors LLC25,300$545K0.0%+2.4%0.011%
8/4/2025Strs Ohio62,100$1.34M0.0%+221.8%0.027%
8/4/2025Emerald Mutual Fund Advisers Trust553,624$11.92M0.7%+9.2%0.239%
8/4/2025Emerald Advisers LLC965,245$20.78M0.8%+9.7%0.416%
8/1/2025Jennison Associates LLC1,072,089$23.08M0.0%+15.0%0.462%
8/1/2025Teacher Retirement System of Texas32,341$696K0.0%+9.4%0.014%
(Data available from 1/1/2016 forward)

MIR Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of MIR shares?

During the previous two years, 243 institutional investors and hedge funds held shares of Mirion Technologies. The most heavily invested institutionals were Vanguard Group Inc. ($337.24M), T. Rowe Price Investment Management Inc. ($300.30M), Janus Henderson Group PLC ($145.37M), Brown Advisory Inc. ($116.27M), Maverick Capital Ltd. ($114.28M), State Street Corp ($109.68M), and Dimensional Fund Advisors LP ($106.78M).Learn more on Mirion Technologies' institutional investors.

What percentage of Mirion Technologies' stock is owned by institutional investors?

78.51% of Mirion Technologies' stock is owned by institutional investors. Learn more on MIR's institutional investor holdings.

Which institutional investors have been buying Mirion Technologies' stock?

Of the 222 institutional investors that purchased Mirion Technologies' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Swedbank AB ($10.78M), Brown Advisory Inc. ($5.56M), Arrowstreet Capital Limited Partnership ($4.20M), American Century Companies Inc. ($3.04M), William Blair Investment Management LLC ($3.04M), Artemis Investment Management LLP ($3.00M), and Raymond James Financial Inc. ($2.96M).

How much institutional buying is happening at Mirion Technologies?

Institutional investors have bought a total of 62,403,749 shares in the last 24 months. This purchase volume represents approximately $1.08B in transactions.

Which of Mirion Technologies' major shareholders have been selling company stock?

Of the 78 institutional investors that sold Mirion Technologies' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Goldman Sachs Group Inc. ($8.30M), Swedbank AB ($6.42M), Alyeska Investment Group L.P. ($4.06M), Adage Capital Partners GP L.L.C. ($3.48M), Maverick Capital Ltd. ($3.09M), Select Equity Group L.P. ($2.29M), and First Manhattan CO. LLC. ($1.63M).

How much institutional selling is happening at Mirion Technologies?

Institutional investors have sold a total of 40,561,676 shares in the last 24 months. This volume of shares sold represents approximately $698.94M in transactions.


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This page (NYSE:MIR) was last updated on 10/15/2025 by MarketBeat.com Staff
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