13F

Stock

Mirion Technologies, Inc.

MIR · held by 365 managers

Reported value

$5.45B

Holders

365

+7 new · −3 exited

Holders’ est. mark

$1.48M

Price effect on 8 books still in the name

Largest holder

$894.6M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.38.2M$894.6MHeld
Vanguard30.3M$710.7MHeld
State Street9.2M$215.4MHeld
Fidelity8.41M$197.1MHeld
COOPERMAN LEON G8.38M$196.3MHeld
GEODE CAPITAL MANAGEMENT, LLC5.79M$135.5MHeld
GOLDMAN SACHS GROUP INC5.25M$122.9MHeld
UBS Group AG4.85M$113.6MHeld
JANUS HENDERSON GROUP PLC4.6M$107.7MHeld
DIMENSIONAL FUND ADVISORS LP4.1M$96.1MHeld
MASSACHUSETTS FINANCIAL SERVICES CO /MA/3.66M$85.8MHeld
Swedbank AB3.4M$79.6MHeld
Invesco Ltd.3.1M$72.6MHeld
Bank of New York Mellon Corp3.08M$72.1MHeld
Two Creeks Capital Management, LP2.92M$68.5MHeld
LOOMIS SAYLES & CO L P2.85M$66.6MHeld
Hood River Capital Management LLC2.78M$65.1MHeld
AMERICAN CENTURY COMPANIES INC2.56M$59.9MHeld
TCW GROUP INC2.45M$57.4MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2.34M$54.9MHeld
AMERIPRISE FINANCIAL INC2.34M$54.7MHeld
NORTHERN TRUST CORP2.33M$54.6MHeld
Driehaus Capital Management LLC2.3M$53.8MHeld
ROYAL BANK OF CANADA2.15M$50.3MHeld
MORGAN STANLEY2.1M$49.1M$210.2KAdded$18.5M
Nuveen, LLC2.01M$47.1MHeld
Artemis Investment Management LLP1.97M$46.2MHeld
Conestoga Capital Advisors, LLC1.94M$45.4MHeld
FRANKLIN RESOURCES INC1.88M$44MHeld
PRINCIPAL FINANCIAL GROUP INC1.71M$40MHeld
JPMORGAN CHASE & CO1.67M$39.1MHeld
Chescapmanager LLC1.66M$38.9MHeld
Citadel1.62M$38MHeld
BROWN ADVISORY INC1.61M$37.8MHeld
RAYMOND JAMES FINANCIAL INC1.53M$36.3MHeld
Alyeska Investment Group, L.P.1.53M$35.9MHeld
BANK OF AMERICA CORP /DE/1.36M$31.8M$217.4KCut−$1.2M
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.1.33M$31.2MHeld
SEGALL BRYANT & HAMILL, LLC1.17M$27.4MHeld
Rockefeller Capital Management L.P.1.14M$26.7MHeld
EMERALD ADVISERS, LLC1.14M$26.6MHeld
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP1.07M$25.1MHeld
Allspring Global Investments Holdings, LLC1.03M$24.6MHeld
SCHRODER INVESTMENT MANAGEMENT GROUP1.01M$24MHeld
JENNISON ASSOCIATES LLC992.6K$23.2MHeld
CORSAIR CAPITAL MANAGEMENT, L.P.982.4K$23M$157.2KCut−$1.32M
TimesSquare Capital Management, LLC967.3K$22.7MHeld
Davidson Kempner Capital Management LP928.5K$21.7MNew
BNP PARIBAS FINANCIAL MARKETS904.2K$21.2MHeld
VOYA INVESTMENT MANAGEMENT LLC879.9K$20.6MHeld
WELLS FARGO & COMPANY/MN870.3K$20.4MHeld
PUBLIC SECTOR PENSION INVESTMENT BOARD857.7K$20.1MHeld
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.854.7K$20MHeld
Troluce Capital Advisors LLC850K$19.9MHeld
FEDERATED HERMES, INC.848.6K$19.9MHeld
SILVERCREST ASSET MANAGEMENT GROUP LLC818.2K$19.2MHeld
Stephens Investment Management Group LLC809.9K$19MHeld
SCHWARTZ INVESTMENT COUNSEL INC794.3K$18.6MHeld
Select Equity Group, L.P.769K$18MHeld
NOMURA HOLDINGS INC760.7K$17.8MHeld
AXIOM INVESTORS LLC /DE721.5K$16.9MHeld
Pier Capital, LLC717.4K$16.8MHeld
ArrowMark Colorado Holdings LLC716.1K$16.8MHeld
EMERALD MUTUAL FUND ADVISERS TRUST704.5K$16.5MHeld
BAMCO INC /NY/650K$15.2MHeld
Ensign Peak Advisors, Inc649.8K$15.2MHeld
Nicholas Investment Partners, LP641.7K$15MHeld
D. E. Shaw & Co., Inc.629.2K$14.7MHeld
RHUMBLINE ADVISERS619.3K$14.5MHeld
Legal & General Group Plc609.9K$14.3MHeld
OBERWEIS ASSET MANAGEMENT INC/607.8K$14.2MHeld
DEUTSCHE BANK AG\578.4K$13.5MHeld
NEUBERGER BERMAN GROUP LLC567.7K$13.3MHeld
Alta Park Capital, LP562.5K$13.2MHeld
GAMCO INVESTORS, INC. ET AL541.9K$12.7MHeld
Telemark Asset Management, LLC500K$11.7MHeld
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC500K$11.7MHeld
Bridgewater489.9K$11.5MHeld
Swiss National Bank464.2K$10.9MHeld
SEI INVESTMENTS CO456.5K$10.7MHeld
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC443.8K$10.4MHeld
GABELLI FUNDS LLC430.3K$10.1MHeld
VICTORY CAPITAL MANAGEMENT INC405.9K$9.51MHeld
PEREGRINE CAPITAL MANAGEMENT LLC403.1K$9.44MHeld
Tidal Investments LLC403K$9.44MHeld
ZACKS INVESTMENT MANAGEMENT402.2K$9.42MHeld
Sumitomo Mitsui DS Asset Management Company, Ltd399.5K$9.36MHeld
BANK OF NOVA SCOTIA391K$9.16MHeld
CITIGROUP INC377.9K$8.85MHeld
BARCLAYS PLC374K$8.76M$59.8KCut−$574.7K
BURKEHILL GLOBAL MANAGEMENT, LP350K$8.2MHeld
CASTLEARK MANAGEMENT LLC348.1K$8.15MHeld
FIRST TRUST ADVISORS LP348.1K$8.15MHeld
TD Asset Management Inc348.1K$8.15MHeld
Universal- Beteiligungs- und Servicegesellschaft mbH325.8K$7.63MHeld
ARDSLEY ADVISORY PARTNERS LP325K$7.61MHeld
ALLIANCEBERNSTEIN L.P.320.5K$7.51MHeld
KEYSTONE INVESTORS PTE LTD309.9K$7.26MHeld
ESSEX INVESTMENT MANAGEMENT CO LLC303.4K$7.1MHeld
ROYCE & ASSOCIATES LP293.9K$6.88MHeld
EXCHANGE TRADED CONCEPTS, LLC293.8K$6.88MHeld
Tredje AP-fonden280.8K$6.58MHeld
Empowered Funds, LLC278.8K$6.53MHeld
Icahn Capital277.7K$6.5MHeld
Legato Capital Management LLC276.5K$6.48MHeld
Montanaro Asset Management Ltd255.4K$5.98MHeld
Ghisallo Capital Management LLC250K$5.86MHeld
WELLINGTON MANAGEMENT GROUP LLP248.8K$5.83MHeld
ENVESTNET ASSET MANAGEMENT INC247.8K$5.8MHeld
Walleye Capital LLC238.3K$5.58MHeld
PRUDENTIAL FINANCIAL INC231.3K$5.42MHeld
Robeco Schweiz AG230K$5.39MHeld
STATE OF WISCONSIN INVESTMENT BOARD226.5K$5.31MHeld
THORNBURG INVESTMENT MANAGEMENT INC226.2K$5.3MHeld
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM224.3K$5.25MHeld
COMERICA BANK222.8K$5.22MHeld
Munro Partners222.7K$5.22MHeld
ZEVENBERGEN CAPITAL INVESTMENTS LLC221.3K$5.18MHeld
RICE HALL JAMES & ASSOCIATES, LLC199.9K$4.68MHeld
Informed Momentum Co LLC193.3K$4.53MHeld
NEW YORK STATE COMMON RETIREMENT FUND175.7K$4.11MHeld
BOOTHBAY FUND MANAGEMENT, LLC173.9K$4.07MHeld
Hollow Brook Wealth Management LLC171.6K$4.02MHeld
Lisanti Capital Growth, LLC156.7K$3.67MHeld
Pathstone Holdings, LLC156.3K$3.66MHeld
Creative Planning153.7K$3.6MHeld
Aperture Investors, LLC151.7K$3.55MHeld
LAZARD ASSET MANAGEMENT LLC143.1K$3.35MHeld
Sculptor Capital LP140K$3.28MNew
Illinois Municipal Retirement Fund137.2K$3.21MHeld
MetLife Investment Management, LLC132K$3.09MHeld
UniSuper Management Pty Ltd129.5K$3.03MHeld
KENNEDY CAPITAL MANAGEMENT LLC125.1K$2.93MHeld
XTX Topco Ltd125K$2.93MHeld
TD Waterhouse Canada Inc.118K$2.76MHeld
LPL Financial LLC115.7K$2.71MHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE115.5K$2.71MHeld
Louisiana State Employees Retirement System113.5K$2.66MHeld
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.111.4K$2.61MHeld
First National Advisers, LLC111.2K$2.6MHeld
FIRST NATIONAL BANK OF OMAHA110.8K$2.6MNew
INTECH INVESTMENT MANAGEMENT LLC110.6K$2.59MHeld
CI INVESTMENTS INC.106.6K$2.5MHeld
TEMA ETFS LLC105K$2.46MHeld
NEOS Investment Management LLC105K$2.46MHeld
CREDIT AGRICOLE S A103.2K$2.42MHeld
FIL Ltd100K$2.34MHeld
Blackhawk Capital Partners, LLC93.4K$2.19MHeld
Gotham Asset Management, LLC93K$2.18MHeld
NORGES BANK92.1K$2.16M$821.6KCut−$6.58M
State of New Jersey Common Pension Fund D90.4K$2.12MHeld
Verition Fund Management LLC89.1K$2.09MHeld
Zurcher Kantonalbank (Zurich Cantonalbank)83.8K$1.96MHeld
SUMITOMO LIFE INSURANCE CO81.9K$1.92MHeld
Pacer Advisors, Inc.80.1K$1.88MHeld
POLEN CAPITAL MANAGEMENT LLC79.4K$1.86MHeld
State of Tennessee, Department of Treasury74.5K$1.85MHeld
CAPSTONE INVESTMENT ADVISORS, LLC75.7K$1.77MHeld
YOUSIF CAPITAL MANAGEMENT, LLC67K$1.76MHeld
Register Financial Advisors LLC73.7K$1.72MHeld
Connor, Clark & Lunn Investment Management Ltd.70.9K$1.66MHeld
Sterling Capital Management LLC68.8K$1.61MHeld
ARIZONA STATE RETIREMENT SYSTEM65.5K$1.53MHeld
Police & Firemen's Retirement System of New Jersey63.8K$1.49MHeld
DDD Partners, LLC63K$1.48MHeld
Mariner, LLC62.5K$1.46MHeld
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS61.4K$1.44MHeld
STIFEL FINANCIAL CORP59.1K$1.38MHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM57.2K$1.34MHeld
TWINBEECH CAPITAL LP57.1K$1.34MHeld
OREGON PUBLIC EMPLOYEES RETIREMENT FUND56.7K$1.33MHeld
Madison Asset Management, LLC56.6K$1.33MHeld
KLP KAPITALFORVALTNING AS50.2K$1.18MHeld
1832 Asset Management L.P.50K$1.17MHeld
ProShare Advisors LLC46.7K$1.09MHeld
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/44.8K$1.05MHeld
Qsemble Capital Management, LP44.3K$1.04MHeld
Cresset Asset Management, LLC42.5K$995.4K$6.8KAdded$6.8K
Hudson Bay Capital Management LP40K$936.8KNew
LBP AM SA37.1K$868.6KHeld
Maryland State Retirement & Pension System36.3K$849.7KHeld
DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.34.8K$814.4KHeld
OSTRUM ASSET MANAGEMENT34.4K$805.2KHeld
OPPENHEIMER & CO INC34K$795.8KHeld
TRUIST FINANCIAL CORP33.9K$792.9KHeld
Pictet Asset Management Holding SA33.4K$782KHeld
Calamos Advisors LLC31.7K$742.4KHeld
Sanctuary Advisors, LLC30.2K$706.9K$4.83KCut−$20K
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC28.3K$663.3KHeld
Laurion Capital Management LP28.2K$660.2KHeld
CAPTRUST FINANCIAL ADVISORS25.2K$590.9KHeld
Twin Tree Management, LP25.1K$588.6KHeld
Themes Management Co LLC24.7K$579.4KHeld
SIMON QUICK ADVISORS, LLC23.9K$559.4KHeld
Russell Investments Group, Ltd.22.1K$517.1KHeld
Headlands Technologies LLC21K$491KHeld
STRS OHIO20.7K$484.8KHeld
Vontobel Holding Ltd.20.1K$470.3KHeld
MARIETTA INVESTMENT PARTNERS LLC20K$467.3KHeld
Ameritas Investment Partners, Inc.19.8K$464.7KHeld
Cetera Investment Advisers19.7K$461.5KHeld
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC17.9K$450KHeld
Blueshift Asset Management, LLC18.8K$441.4KHeld
XPONANCE LLC18.8K$441.3KHeld
PNC Financial Services Group, Inc.18.3K$427.7KHeld
SCP Investment, LP18K$421.6KHeld
TORONTO DOMINION BANK17.7K$415.6KHeld
MML INVESTORS SERVICES, LLC16.6K$388.9KHeld
NBC SECURITIES, INC.16.3K$382.1KHeld
Ethic Inc.16.3K$381.1KHeld
New Age Alpha Advisors, LLC16.1K$376.5KHeld
CIBC WORLD MARKETS CORP15.9K$371.7KHeld
BANK OF MONTREAL /CAN/15.8K$370.5KHeld
GLENMEDE TRUST CO NA15.6K$365.9KHeld
INCEPTIONR LLC15.4K$361.3KHeld
SANDLER CAPITAL MANAGEMENT15.2K$355.8KHeld
T. Rowe Price Investment Management, Inc.15.1M$353.9KHeld
Tributary Capital Management, LLC14.8K$346.6KNew
IEQ CAPITAL, LLC14.5K$340.1KHeld
Corient Private Wealth LLC14.5K$338.7KHeld
Vident Advisory, LLC14.1K$330.9KHeld
KEYBANK NATIONAL ASSOCIATION/OH13.7K$320.9KHeld
Cerity Partners LLC12.6K$295.3KHeld
Harbour Capital Advisors, LLC12.1K$288.9KHeld
Amundi12.3K$288.1KHeld
Altshuler Shaham Ltd11.7K$274.1KHeld
O'SHAUGHNESSY ASSET MANAGEMENT, LLC11.5K$270.4KHeld
Quantinno Capital Management LP11.3K$264.3KHeld
SBI Okasan Asset Management Co.Ltd.11K$261.5KHeld
PRELUDE CAPITAL MANAGEMENT, LLC11.1K$259.6KHeld
PROFUND ADVISORS LLC11K$256.5KHeld
Swiss Life Asset Management Ltd10.9K$254.2K$1.57KAdded$25.6K
VARCOV Co.10.8K$253.8KHeld
Stratos Wealth Partners, LTD.10.6K$247.5KHeld
Aigen Investment Management, LP10.5K$246.4KHeld
Corient IA LLC10K$234.2KHeld
CIBC Asset Management Inc9.84K$230.5KHeld
Weiss Asset Management LP9.72K$227.6KNew
Atria Investments, Inc9.65K$226KHeld
Forum Financial Management, LP9.32K$218.2KHeld
Schonfeld Strategic Advisors LLC9.2K$215.4KHeld
Vanguard Personalized Indexing Management, LLC9.06K$212.2KHeld
ABSHER WEALTH MANAGEMENT, LLC9K$210.8KHeld
Integrated Advisors Network LLC8.96K$209.8KHeld
CastleKnight Management LP8.75K$204.9KHeld
Merit Financial Group, LLC8.57K$200.8KHeld
Jefferies Financial Group Inc.8.5K$199.1KHeld
Tower Research Capital LLC (TRC)7.57K$177.3KHeld
Kestra Advisory Services, LLC7.54K$176.5KHeld
US BANCORP \DE\7.24K$169.6KHeld

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.