Skip to content
Disclosery

MIR MIRION TECHNOLOGIES INC

Follow

COM CL A (common), issuer CIK 1809987

229 managers (232 13F filers) reported a position in MIR shares at 2025-03-31, 185,377,469 shares in all. 43 filers opened a position and 39 filers sold out during the quarter.

Managers
229
13F filers
232
New
43
Added
93
Reduced
66
Sold out
39
Shares held by filers
185,377,469

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCin group VANGUARD GROUP INC23,258,048$337M0.01%-651,75413F-HRTimelineGroup
T. Rowe Price Investment Management, In…20,710,389$300M0.2%+322,24313F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.16,139,924$234M<0.01%+37,86313F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson8,587,664$126M0.07%+257,16913F-HRTimelineGroup
MAVERICK CAPITAL LTD8,056,109$117M2.1%+1,878,49813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP7,363,954$107M0.03%+178,26013F-HRTimelineGroup
COOPERMAN LEON G7,025,000$102M4.04%013F-HR/ATimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC5,560,461$80.6M0.12%+1,748,43713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP5,139,569$74.5M<0.01%-61,52313F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC4,738,769$68.7M0.01%+166,94113F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.4,150,262$60.2M0.24%+388,94713F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC3,432,814$49.8M0.03%+1,047,78113F-HRTimelineGroup
CORSAIR CAPITAL MANAGEMENT, L.P.3,072,003$44.5M11.47%-97,61713F-HR/ATimeline
Artemis Investment Management LLP2,998,435$43.5M0.67%+811,88213F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …2,789,509$40.4M0.03%-1,425,41213F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,567,660$37.2M0.04%-537,71413F-HRTimelineGroup
LORD, ABBETT & CO. LLC2,399,864$34.8M0.12%+31,13013F-HRTimeline
Select Equity Group, L.P.2,292,236$33.2M0.15%-21,18313F-HRTimeline
ArrowMark Colorado Holdings LLC2,188,926$31.7M0.51%-179,62413F-HRTimeline
Bornite Capital Management LP2,064,300$29.9M7.71%-52,70013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,971,182$28.6M<0.01%-70,40713F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,931,789$28M-14,302Timeline
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1,731,391$25.1M0.07%-1,309,62513F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC1,717,848$24.9M0.01%+734,23813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,641,075$23.8M<0.01%+41,86413F-HR/ATimelineGroup
ACK Asset Management LLC1,618,356$23.5M3.85%-196,64413F-HRTimeline
Nuveen, LLCin group TIAA1,388,424$20.1M0.01%13F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 2 filers holding1,387,205$20.1M+552,535Timeline
Chescapmanager LLCin group Chescapmanager LLC1,327,895$19.3M4.01%013F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC1,310,960$19M0.14%+342,39913F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,222,077$17.7M<0.01%+173,25713F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP1,122,671$16.4M0.02%+447,58713F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding1,116,377$16.2M-39,945Timeline
VICTORY CAPITAL MANAGEMENT INC1,004,697$14.6M0.01%+977,22113F-HRTimeline
MASTERS CAPITAL MANAGEMENT LLC1,000,000$14.5M3.07%013F-HRTimeline
SCHWARTZ INVESTMENT COUNSEL INC954,300$13.8M0.48%-395,00013F-HRTimeline
Pier Capital, LLC941,480$13.7M2.29%+283,52313F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…938,237$13.6M0.03%new13F-HRTimelineGroup
JENNISON ASSOCIATES LLC931,867$13.5M0.01%+417,55313F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC909,252$13.2M0.01%+798,01513F-HRTimelineGroup
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT…in group SUMMIT PARTNERS PUBLIC ASSET …896,000$13M0.62%new13F-HRTimelineGroup
Arosa Capital Management LP868,261$12.6M8.35%+375,26113F-HRTimeline
FIL Ltdin group FIL Ltd810,893$11.8M0.01%-1,200,00013F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC711,349$10.3M0.16%+236,76613F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp669,138$9.7M<0.01%+7,70913F-HRTimelineGroup
ROYCE & ASSOCIATES LP668,643$9.7M0.11%+215,64313F-HRTimeline
Qube Research & Technologies Ltd650,207$9.43M0.01%+174,08813F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC643,700$9.33M0.01%+498,68613F-HRTimeline
NORGES BANK602,500$8.74M<0.01%new13F-HR/ATimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …596,100$8.55M0.01%+75,40813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/588,622$8.54M<0.01%+386,89213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC579,644$8.4M<0.01%-8,295,81413F-HR/ATimelineGroup
Trexquant Investment LP567,609$8.23M0.1%+114,06513F-HRTimeline
Telemark Asset Management, LLC500,000$7.25M0.95%013F-HRTimeline
Ensign Peak Advisors, Inc496,147$7.19M0.01%+23,92613F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.451,617$6.55M0.01%+132,07313F-HRTimelineGroup
KINGDON CAPITAL MANAGEMENT, L.L.C.450,000$6.53M1.35%+50,00013F-HRTimeline
TUDOR INVESTMENT CORP ET AL430,949$6.25M0.06%+265,08313F-HRTimeline
TD Asset Management Inc415,034$6.02M0.01%+7,90213F-HRTimeline
Swiss National Bank393,200$5.7M<0.01%+16,40013F-HRTimeline
Roubaix Capital, LLC379,098$5.5M2.86%+242,45813F-HRTimeline
Nicholas Investment Partners, LP367,256$5.33M0.55%-64,09813F-HRTimeline
Aperture Investors, LLC357,367$5.18M0.79%-14,20313F-HRTimeline
Bastion Asset Management Inc.326,580$4.89M2.63%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding334,696$4.85M+208,471Timeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC328,184$4.76M0.01%+307,50513F-HR/ATimelineGroup
Invesco Ltd.in group Invesco Ltd.321,838$4.67M<0.01%-168,97613F-HRTimelineGroup
FMR LLCin group FMR LLC321,791$4.67M<0.01%+19,50213F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP317,407$4.6M<0.01%+208,15013F-HRTimelineGroup
RHUMBLINE ADVISERS307,422$4.46M<0.01%-11,04513F-HR/ATimeline
ESSEX INVESTMENT MANAGEMENT CO LLC301,873$4.38M0.91%-2,38213F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN291,129$4.22M<0.01%-3,66913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO287,369$4.17M<0.01%-310,67913F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding286,320$4.15M-113,675Timeline
RICE HALL JAMES & ASSOCIATES, LLC270,106$3.92M0.23%-41913F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\261,177$3.79M<0.01%-50,26913F-HRTimelineGroup
Hollow Brook Wealth Management LLC256,742$3.72M1.1%+46,36113F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC253,540$3.68M<0.01%-99,78213F-HR/ATimelineGroup
Schonfeld Strategic Advisors LLC248,969$3.61M0.02%-3,71713F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc233,729$3.39M<0.01%+14,03113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.219,330$3.18M<0.01%+2,83113F-HRTimeline
Verition Fund Management LLC201,406$2.92M0.02%-48,64213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC199,211$2.89M<0.01%+110,39913F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO193,739$2.81M<0.01%+5,82113F-HR/ATimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC191,755$2.78M<0.01%-87,06213F-HRTimelineGroup
SANDLER CAPITAL MANAGEMENT181,787$2.64M0.86%-390,66413F-HRTimeline
Alberta Investment Management Corp180,520$2.62M0.02%+26,36013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC177,968$2.58M<0.01%+158,58213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…177,403$2.57M<0.01%-2,84413F-HRTimeline
ARDSLEY ADVISORY PARTNERS LP175,000$2.54M0.59%+50,00013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC165,865$2.41M<0.01%-21,45813F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management164,032$2.38M0.01%+127,53013F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP151,996$2.2M0.1%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/150,130$2.18M<0.01%+9,85413F-HRTimeline
HRT FINANCIAL LP145,133$2.1M0.01%-10,26613F-HRTimeline
Legato Capital Management LLC136,125$1.97M0.27%-9,34513F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC134,005$1.94M0.03%+45,17513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC127,952$1.86M0.02%+35,21813F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…126,687$1.84M0.01%-2,41313F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…122,962$1.78M<0.01%+5,36613F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…122,683$1.78M0.01%-1,45413F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …117,445$1.7M<0.01%+10,31313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND117,028$1.7M<0.01%-8,39413F-HR/ATimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC111,609$1.62M<0.01%+18,28713F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD111,263$1.61M<0.01%+85,36713F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC107,363$1.56M<0.01%+52,83513F-HR/ATimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.101,203$1.47M0.01%-1,49913F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC99,681$1.45M0.01%+61,44313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA98,828$1.43M<0.01%+71,24113F-HR/ATimelineGroup
Aquatic Capital Management LLC97,996$1.42M0.04%new13F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…87,721$1.27M0.01%new13F-HRTimelineGroup
Sterling Capital Management LLC84,865$1.23M0.02%-613F-HRTimeline
State of Wyoming81,274$1.18M0.16%-23,47613F-HRTimeline
FIRST MANHATTAN CO. LLC.76,932$1.12M<0.01%-43,22513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd69,269$1M0.05%+46,71613F-HRTimelineGroup
CastleKnight Management LP63,100$915K0.1%-36,80013F-HRTimeline
TT International Asset Management LTD62,346$904K0.14%new13F-HRTimeline
Handelsbanken Fonder AB61,031$885K<0.01%013F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.59,895$868K<0.01%new13F-HRTimelineGroup
Cresset Asset Management, LLC58,500$848K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM58,214$844K0.01%+2,60813F-HRTimeline
Creative Planningin group Creative Planning57,348$832K<0.01%+37,04813F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…57,210$830K<0.01%013F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.56,300$816K0.01%new13F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC56,178$815K<0.01%+36,13713F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC55,838$810K<0.01%-4,47013F-HR/ATimelineGroup
Graham Capital Management, L.P.55,154$800K0.03%-52,59413F-HRTimeline
LPL Financial LLC48,818$708K<0.01%+36,71213F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC48,000$696K0.01%-114,00013F-HRTimelineGroup
VIRGINIA RETIREMENT SYSTEMS ET Al47,546$689K0.01%13F-HRTimeline
CIBC WORLD MARKETS CORP45,838$665K0.01%+26,50613F-HRTimeline
ProShare Advisors LLC44,721$648K<0.01%-13,45813F-HRTimeline
Police & Firemen's Retirement System of…44,108$640K0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…38,387$557K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS37,500$544K<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…35,010$508K<0.01%+6,89613F-HRTimelineGroup
Engineers Gate Manager LP34,303$497K0.01%-14,62913F-HRTimeline
Campbell & CO Investment Adviser LLC33,425$485K0.04%-2,17213F-HRTimeline
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …33,315$483K0.01%-1,84813F-HRTimelineGroup
SIMPLEX TRADING, LLC31,370$454K0.02%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS29,565$429K<0.01%+13,73313F-HRTimeline
Register Financial Advisors LLC29,300$425K0.22%new13F-HRTimeline
BANTAMAC CAPITAL, LLC25,934$376K0.18%+12,17213F-HRTimeline
SIMON QUICK ADVISORS, LLC24,705$358K0.02%+65113F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …24,189$351K<0.01%new13F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC23,965$342K<0.01%-6413F-HRTimelineGroup
PDT Partners, LLC22,969$333K0.02%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…22,898$332K<0.01%-3,23513F-HRTimelineGroup
SUMITOMO LIFE INSURANCE CO22,676$329K0.01%new13F-HRTimeline
MACKENZIE FINANCIAL CORP22,478$326K<0.01%+57013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…20,898$303K0.01%-71313F-HRTimelineGroup
STRS OHIO19,300$280K<0.01%013F-HRTimeline
SG Americas Securities, LLC19,021$276K<0.01%new13F-HRTimeline
Sanctuary Advisors, LLC18,343$266K<0.01%+3,43013F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC17,217$250K<0.01%new13F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC15,945$231K<0.01%+1,25013F-HRTimelineGroup
XPONANCE LLC15,793$229K<0.01%+85113F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP15,683$227K<0.01%+2,00113F-HRTimelineGroup
IEQ CAPITAL, LLC14,919$216K<0.01%new13F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC14,057$204K<0.01%+1,82013F-HRTimelineGroup
Diametric Capital, LP13,679$198K0.24%-2,87813F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…13,547$196K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS13,447$195K<0.01%-14,07313F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP12,859$186K<0.01%new13F-HRTimelineGroup
Longboard Asset Management, LP11,594$168K0.49%013F-HRTimeline
TWO SIGMA SECURITIES, LLC11,427$166K0.03%new13F-HRTimeline
Integrated Advisors Network LLC11,298$164K0.01%-7,19313F-HRTimeline
Sciencast Management LP10,508$152K0.04%new13F-HRTimeline
KBC Group NVin group KBC Group NV10,485$152K<0.01%+2,48313F-HRTimelineGroup
Corient Private Wealth LPgroup of 2 filers holding10,000$145K-700Timeline
AMALGAMATED BANK7,062$102K<0.01%+2413F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\6,664$96.6K<0.01%+40213F-HRTimelineGroup
CWM, LLCin group CWM, LLC6,431$93K<0.01%+5,86013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,586$81K<0.01%-1,06313F-HRTimelineGroup
Smartleaf Asset Management LLC5,205$76.1K0.01%+4,44213F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…4,676$68K<0.01%new13F-HRTimelineGroup
AlphaQuest LLC3,605$52.3K0.01%+3,60413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC2,715$39.4K<0.01%-8113F-HRTimeline
Central Pacific Bank - Trust Division2,500$36.2K0.01%-2,50013F-HRTimeline
Parallel Advisors, LLC1,986$28.8K<0.01%+25113F-HRTimeline
SUMMIT SECURITIES GROUP LLC1,659$24.1K0.02%new13F-HRTimeline
Versant Capital Management, Inc1,163$16.9K<0.01%new13F-HRTimeline
COMERICA BANK1,037$15K<0.01%-20913F-HRTimeline
Clearstead Advisors, LLC924$13.4K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC896$13K<0.01%-21413F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC817$11.8K<0.01%-17113F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.736$10.7K<0.01%-38713F-HRTimelineGroup
Avion Wealth620$10K<0.01%013F-HRTimeline
First Horizon Advisors, Inc.642$9.31K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.642$9.31K<0.01%-26013F-HRTimelineGroup
Rise Advisors, LLC579$8.4K<0.01%new13F-HRTimeline
GAMMA Investing LLC502$7.28K<0.01%+20013F-HR/ATimeline
Global Financial Private Client, LLC494$7.16K<0.01%+48313F-HRTimeline
Hillsdale Investment Management Inc.430$6.24K<0.01%new13F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.400$5.2K<0.01%013F-HRTimelineGroup
SIERRA OCEAN, LLC321$4.66K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…288$4.18K<0.01%+20713F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…270$3.92K<0.01%new13F-HRTimeline
Millstone Evans Group, LLC268$3.89K<0.01%new13F-HRTimeline
Allworth Financial LP247$3.69K<0.01%+15513F-HRTimeline