Free Trial

Mirion Technologies (MIR) Institutional Ownership

Mirion Technologies logo
$20.68 -1.45 (-6.55%)
Closing price 03:59 PM Eastern
Extended Trading
$20.96 +0.28 (+1.35%)
As of 07:59 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.

Institutional Ownership Changes (13F Filings) for Mirion Technologies (NYSE:MIR)

Current
Institutional Ownership
Percentage
78.51%
Number of
Institutional Buyers
(last 12 months)
183
Total
Institutional Inflows
(last 12 months)
$1.03B
Number of
Institutional Sellers
(last 12 months)
78
Total
Institutional Outflows
(last 12 months)
$624.35M
Get MIR Insider Trade Alerts

Want to know when executives and insiders are buying or selling Mirion Technologies stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Skip Chart & View Institutional Buying and Selling Data

MIR Institutional Buying and Selling by Quarter

Mirion Technologies Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
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%
8/12/2025 Ameritas Investment Partners Inc.21,455$462K0.0%+2.7%0.009%
8/12/2025 Prudential Financial Inc.27,010$582K0.0%+69.4%0.012%
8/12/2025 American Century Companies Inc.3,373,352$72.63M0.0%-1.7%1.442%
8/12/2025 Segall Bryant & Hamill LLC1,089,217$23.45M0.3%+53.1%0.466%
8/12/2025 Rhumbline Advisers318,602$6.86M0.0%+3.6%0.136%
8/12/2025 AXQ Capital LP26,654$574K0.2%N/A0.011%
8/12/2025 Franklin Resources Inc.668,159$14.39M0.0%N/A0.286%
8/12/2025 Legal & General Group Plc242,824$5.23M0.0%+3.9%0.104%
8/12/2025 Neo Ivy Capital Management132,188$2.85M0.9%N/A0.056%
8/12/2025 JPMorgan Chase & Co.825,269$17.77M0.0%+187.2%0.353%
8/12/2025 Swiss National Bank408,800$8.80M0.0%+4.0%0.175%
8/12/2025 Highbridge Capital Management LLC57,352$1.24M0.1%N/A0.025%
8/12/2025 Ensign Peak Advisors Inc601,248$12.95M0.0%+21.2%0.257%
This Crypto Is Set to Explode in January (Ad)

Billions Flowing Into Crypto (Here’s Where It’s Going!) Institutional money is flooding into crypto... Discover which coins they’re buying at the Crypto Hedge Fund Summit, before prices catch up.

8/11/2025 FSC Wealth Advisors LLC2,744$59K0.0%N/A0.001%
8/11/2025 Universal Beteiligungs und Servicegesellschaft mbH240,549$5.18M0.0%+894.5%0.104%
8/8/2025 Rockefeller Capital Management L.P.25,395$547K0.0%-97.3%0.011%
8/8/2025 Cetera Investment Advisers13,398$288K0.0%N/A0.006%
8/8/2025 Creative Planning104,996$2.26M0.0%+83.1%0.045%
8/8/2025 Calamos Advisors LLC44,400$956K0.0%N/A0.019%
8/8/2025 Police & Firemen s Retirement System of New Jersey47,951$1.03M0.0%+8.7%0.021%
8/8/2025 Bailard Inc.17,748$382K0.0%N/A0.008%
8/8/2025 Geode Capital Management LLC4,739,240$102.05M0.0%+0.0%2.043%
8/8/2025 PNC Financial Services Group Inc.16,812$362K0.0%-26.6%0.007%
8/8/2025 KBC Group NV6,348$137K0.0%-39.5%0.003%
8/7/2025 Robeco Schweiz AG230,000$4.95M0.1%N/A0.099%
8/7/2025 ProShare Advisors LLC43,091$928K0.0%-3.6%0.019%
8/7/2025 Bornite Capital Management LP2,051,700$44.17M4.4%-0.6%0.885%
8/7/2025 Connor Clark & Lunn Investment Management Ltd.102,225$2.20M0.0%N/A0.044%
8/6/2025 Summit Investment Advisors Inc.20,898$303K0.2%-3.3%0.009%
8/6/2025 Savant Capital LLC22,329$481K0.0%N/A0.010%
8/5/2025 Bank of Montreal Can65,640$1.41M0.0%N/A0.028%
8/5/2025 Sumitomo Life Insurance Co.64,495$1.39M0.1%+184.4%0.028%
8/5/2025 Pier Capital LLC871,028$18.75M2.9%-7.5%0.376%
8/4/2025 Wolverine Asset Management LLC89,452$1.93M0.0%+86.4%0.039%
8/4/2025 Simon Quick Advisors LLC25,300$545K0.0%+2.4%0.011%
8/4/2025 Strs Ohio62,100$1.34M0.0%+221.8%0.027%
8/4/2025 Emerald Mutual Fund Advisers Trust553,624$11.92M0.7%+9.2%0.239%
8/4/2025 Emerald Advisers LLC965,245$20.78M0.8%+9.7%0.416%
8/1/2025 Jennison Associates LLC1,072,089$23.08M0.0%+15.0%0.462%
8/1/2025 Teacher Retirement System of Texas32,341$696K0.0%+9.4%0.014%
8/1/2025 Y Intercept Hong Kong Ltd71,014$1.53M0.0%N/A0.031%
8/1/2025 Envestnet Asset Management Inc.232,996$5.02M0.0%+30.9%0.100%
7/31/2025 Nisa Investment Advisors LLC3,366$72K0.0%+24.0%0.001%
7/31/2025 State of New Jersey Common Pension Fund D105,811$2.28M0.0%-16.5%0.046%
7/30/2025 Ethic Inc.9,945$216K0.0%N/A0.004%
7/30/2025 Cookson Peirce & Co. Inc.20,000$431K0.0%N/A0.009%
7/29/2025 William Blair Investment Management LLC1,005,847$21.66M0.1%-41.9%0.434%
7/28/2025 Twin Tree Management LP39,581$852K0.0%N/A0.017%
7/28/2025 TD Asset Management Inc430,758$9.27M0.0%+3.8%0.186%
7/25/2025 Allspring Global Investments Holdings LLC556,362$11.42M0.0%-6.7%0.240%
7/25/2025 CWM LLC16,910$364K0.0%+162.9%0.007%
7/23/2025 Vontobel Holding Ltd.37,539$808K0.0%-37.3%0.016%
7/23/2025 KLP Kapitalforvaltning AS44,400$956K0.0%+18.4%0.019%
7/18/2025 Truist Financial Corp32,167$693K0.0%+105.1%0.014%
7/17/2025 Janney Montgomery Scott LLC22,439$483K0.0%N/A0.010%
7/16/2025 Register Financial Advisors LLC63,800$1.37M0.6%+117.7%0.028%
7/10/2025 Exchange Traded Concepts LLC181,473$3.91M0.0%+35.4%0.078%
7/10/2025 Wealth Enhancement Advisory Services LLC17,547$363K0.0%N/A0.008%
7/10/2025 TT International Asset Management LTD105,551$2.27M0.4%+69.3%0.046%
7/10/2025 Swedbank AB4,126,035$88.83M0.1%-23.4%1.779%
7/10/2025 Sumitomo Mitsui DS Asset Management Company Ltd236,340$5.09M0.0%+169.4%0.102%
7/7/2025 Zevenbergen Capital Investments LLC10,200$220K0.0%N/A0.004%
6/23/2025 Swedbank AB5,387,000$78.11M0.1%-11.1%2.323%
New law could create $3.7 trillion tsunami. (Ad)

During a meeting in Washington D.C., Jeff Brown discovered a bold initiative. He calls it “President Trump’s Project MAFA,” and it could soon return America to a “new” gold standard. The Trump administration, Wall Street, and Silicon Valley are all pushing it forward. The President himself calls the plan “incredible.” Already, it’s helping small plays jump as high as 300%, 318%, 520%, and even 600%.

6/18/2025Voya Investment Management LLC55,838$810K0.0%-7.4%0.024%
5/29/2025 Rhumbline Advisers307,422$4.46M0.0%-3.5%0.133%
5/28/2025 Strs Ohio19,300$280K0.0%N/A0.008%
5/20/2025 Intech Investment Management LLC127,952$1.86M0.0%+38.0%0.055%
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC434,583$6.30M0.0%+8.8%0.187%
5/16/2025Sciencast Management LP10,508$152K0.0%N/A0.005%
5/16/2025Goldman Sachs Group Inc.579,644$8.41M0.0%-93.5%0.250%
5/16/2025Select Equity Group L.P.2,292,236$33.24M0.1%-0.9%0.988%
5/16/2025Sandler Capital Management181,787$2.64M0.7%-68.2%0.078%
5/16/2025Millennium Management LLC2,567,660$37.23M0.0%-17.3%1.107%
(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, 232 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), State Street Corp ($109.68M), Dimensional Fund Advisors LP ($106.78M), and Geode Capital Management LLC ($102.05M).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 208 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. ($2.70M).

How much institutional buying is happening at Mirion Technologies?

Institutional investors have bought a total of 60,109,024 shares in the last 24 months. This purchase volume represents approximately $1.03B 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), Select Equity Group L.P. ($2.20M), First Manhattan CO. LLC. ($1.63M), and American Century Companies Inc. ($1.49M).

How much institutional selling is happening at Mirion Technologies?

Institutional investors have sold a total of 37,202,654 shares in the last 24 months. This volume of shares sold represents approximately $624.35M in transactions.



This page (NYSE:MIR) was last updated on 8/14/2025 by MarketBeat.com Staff
From Our Partners