Mirion TechnologiesMIR

13F holders, Q2 2024 (June 30)
155holders +12
34new positions
22sold out
7famous investors
$10.74avg. 13F price*

At the end of Q2 2024, 155 institutions reported holding Mirion Technologies Inc. (MIR) in their 13F filings, up 12 from Q1 2024. 34 opened new positions and 22 sold out. The largest holders were Goldman Sachs Group Inc. ($407.9M), Vanguard Group Inc. ($235.1M) and T. Rowe Price Investment Management, Inc. ($214.6M). 7 famous investors held it, including Leon Cooperman (3.6% of Omega Advisors (Leon Cooperman)'s portfolio), Mario Gabelli (0.1% of GAMCO Investors's portfolio) and Lee Ainslie (0.0% of Maverick Capital's portfolio).

Company
Mirion Technologies Inc.
CUSIP
60471A101
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 143Q1 2024Q2 2024: 155Q2 2024Q3 2024: 176Q3 2024Q4 2024: 224Q4 2024Q1 2025: 231Q1 2025Q2 2025: 301Q2 2025Q3 2025: 342Q3 2025Q4 2025: 365Q4 2025Q1 2026: 362Q1 2026Q2 2026: 351Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions34$79.5M
Exits22$45.9M

All 13F filers, Q1 2024 → Q2 2024: 17,828,501 shares bought and 9,192,827 shares sold, net +8,635,674 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 155 holders

Goldman Sachs Group Inc. 0.08% Add +9.1% 37,977,847 $407.9M
Vanguard Group Inc. 0.00% Add +2.7% 21,885,547 $235.1M
T. Rowe Price Investment Management, Inc. 0.14% Reduce -3.2% 19,981,611 $214.6M
BlackRock Inc. 0.00% Add +1.6% 15,802,384 $169.7M
Swedbank AB 0.15% Reduce -3.7% 10,381,062 $111.5M
Janus Henderson Group PLC 0.05% Reduce -7.6% 8,685,267 $93.3M
Omega Advisors (Leon Cooperman) 3.63% Add +6.5% 8,000,000 $85.9M
Alyeska Investment Group, L.P. 0.43% Add +0.7% 6,975,034 $74.9M
Dimensional Fund Advisors LP 0.02% Add +20.3% 6,111,933 $65.6M
Select Equity Group, L.P. 0.25% Reduce -3.0% 5,783,888 $62.1M
State Street Corp. 0.00% Add +3.5% 5,227,080 $56.1M
P2 Capital Partners, LLC 6.02% Reduce -14.8% 4,701,000 $50.5M
Geode Capital Management, LLC 0.00% Add +3.7% 4,355,047 $46.8M
American Century Companies Inc. 0.03% Add +61.9% 3,942,571 $42.3M
ACK Asset Management LLC 4.37% New 3,297,580 $35.4M
Adage Capital Partners Gp, L.L.C. 0.06% Add +6.7% 3,245,674 $34.9M
ArrowMark Colorado Holdings LLC 0.35% Reduce -1.4% 2,758,726 $29.6M
First Manhattan Co. Llc. 0.06% Reduce -2.0% 1,724,391 $18.5M
Corsair Capital Management, L.P. 3.09% Reduce -1.3% 1,719,004 $18.5M
Northern Trust Corp. 0.00% Reduce -3.1% 1,656,848 $17.8M
Charles Schwab Investment Management Inc. 0.00% Add +2.8% 1,521,102 $16.3M
Schwartz Investment Counsel Inc. 0.60% Add +1.3% 1,519,300 $16.3M
Lord, Abbett & Co. LLC 0.05% Reduce -6.1% 1,442,038 $15.5M
Chescapmanager LLC 1.75% Add +177.0% 1,033,806 $11.1M
Bornite Capital Management LP 1.82% New 1,027,600 $11.0M
Bank of New York Mellon Corp 0.00% Add +13.6% 816,754 $8.8M
Crestline Management, L.P. 0.68% No change 810,000 $8.7M
Nuveen Asset Management, LLC 0.00% Reduce -32.9% 781,106 $8.4M
GAMCO Investors 0.09% Reduce -4.3% 735,645 $7.9M
Gabelli Funds LLC 0.05% Reduce -6.3% 661,688 $7.1M
Morgan Stanley 0.00% Reduce -42.2% 584,646 $6.3M
Millennium Management 0.00% New 533,534 $5.7M
Nicholas Investment Partners, LP 0.61% New 486,291 $5.2M
Royce & Associates LP 0.05% Add +11.6% 480,000 $5.2M
Jane Street Group, LLC 0.01% Add +1841.3% 435,304 $4.7M
UBS Group AG 0.00% Reduce -26.5% 424,922 $4.6M
Lazard Asset Management LLC 0.01% Add +1624.2% 392,264 $4.2M
TD Asset Management Inc 0.00% Add +9.9% 378,550 $4.1M
FIL Ltd 0.00% New 375,338 $4.0M
Segall Bryant & Hamill, LLC 0.07% New 353,546 $3.8M
Essex Investment Management Co. LLC 0.70% Add +35.1% 350,498 $3.8M
JPMorgan Chase & Co. 0.00% Reduce -41.0% 349,719 $3.8M
Swiss National Bank 0.00% No change 343,600 $3.7M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +51.7% 329,215 $3.5M
Rhumbline Advisers 0.00% Add +0.4% 325,569 $3.5M
Eagle Asset Management Inc. 0.02% New 314,593 $3.3M
First Trust Advisors LP 0.00% Reduce -36.8% 286,943 $3.1M
Invesco Ltd. 0.00% Reduce -2.4% 248,560 $2.7M
Rice Hall James & Associates, LLC 0.14% New 221,284 $2.4M
Aperture Investors, LLC 0.35% Add +43.8% 220,094 $2.4M
Alliancebernstein L.P. 0.00% Reduce -0.7% 218,109 $2.3M
Hollow Brook Wealth Management LLC 0.76% Add +4.3% 207,606 $2.2M
Russell Investments Group, Ltd. 0.00% Add +35.0% 200,725 $2.2M
M&T Bank Corp 0.01% Reduce -0.1% 200,171 $2.2M
Bank of America Corp. 0.00% Reduce -48.1% 186,606 $2.0M
Wells Fargo & Company 0.00% Add +130.7% 183,786 $2.0M
Legato Capital Management LLC 0.26% Add +51.5% 181,968 $2.0M
State of New Jersey Common Pension Fund D 0.01% New 175,955 $1.9M
Renaissance Technologies 0.00% Reduce -42.5% 174,000 $1.9M
California State Teachers Retirement System 0.00% Reduce -2.6% 172,437 $1.9M
Legal & General Group Plc 0.00% Add +0.5% 168,184 $1.8M
Alberta Investment Management Corp 0.02% New 168,150 $1.8M
Qube Research & Technologies Ltd 0.00% Add +97.7% 160,104 $1.7M
Maverick Capital 0.03% Add +291.9% 159,811 $1.7M
New York State Common Retirement Fund 0.00% Add +104.3% 152,115 $1.6M
Squarepoint Ops LLC 0.01% Add +456.7% 152,070 $1.6M
Deutsche Bank AG 0.00% Reduce -9.8% 139,840 $1.5M
Boston Partners 0.00% Add +76.3% 127,149 $1.4M
T. Rowe Price Associates Inc. 0.00% Add +5.7% 117,874 $1.3M
MetLife Investment Management, LLC 0.01% Add +10.3% 117,259 $1.3M
Manufacturers Life Insurance Company, The 0.00% Add +4.7% 110,022 $1.2M
Corebridge Financial, Inc. 0.01% — 107,518 $1.2M
Citigroup Inc. 0.00% Add +43.5% 106,563 $1.1M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% — 102,501 $1.1M
Ardsley Advisory Partners LP 0.19% Reduce -20.0% 100,000 $1.1M
Barclays PLC 0.00% Reduce -58.7% 72,392 $777K
Jennison Associates LLC 0.00% New 71,801 $771K
Voya Investment Management LLC 0.00% Add +0.9% 67,057 $720K
Tudor Investment Corporation 0.01% New 65,499 $703K
State Board of Administration of Florida Retirement System 0.00% New 57,210 $614K
Oppenheimer & Co. Inc. 0.01% New 55,665 $598K
Arizona State Retirement System 0.00% Add +2.2% 48,968 $526K
Teacher Retirement System of Texas 0.00% Add +26.8% 46,977 $505K
Handelsbanken Fonder AB 0.00% No change 46,831 $503K
Allspring Global Investments Holdings, LLC 0.00% Reduce -11.8% 43,669 $469K
Campbell & CO Investment Adviser LLC 0.03% Reduce -20.0% 34,170 $367K
Tower Research Capital LLC (TRC) 0.01% Add +1620.4% 33,633 $361K
PNC Financial Services Group, Inc. 0.00% Add +22266.7% 33,550 $360K
Susquehanna International Group, LLP 0.00% New 33,210 $357K
Walleye Capital LLC 0.00% Reduce -52.3% 30,271 $325K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 28,105 $302K
Victory Capital Management Inc. 0.00% Reduce -1.3% 27,123 $291K
ProShare Advisors LLC 0.00% Reduce -25.4% 26,851 $288K
Mariner, LLC 0.00% Add +18.9% 26,506 $285K
Nordwand Advisors, LLC 0.12% No change 25,000 $269K
Cowen and Company, LLC 0.01% New 25,000 $269K
Pictet Asset Management Holding SA 0.00% No change 24,618 $264K
Capstone Investment Advisors, LLC 0.01% Reduce -48.0% 24,579 $264K
Diametric Capital, LP 0.14% New 23,327 $251K
Kestra Advisory Services, LLC 0.00% Add +0.7% 22,855 $245K
Pathstone Holdings, LLC 0.00% New 22,801 $245K
HSBC Holdings PLC 0.00% Add +1.7% 22,649 $243K
PEAK6 Investments LLC 0.01% New 21,210 $228K
SG Americas Securities, LLC 0.00% Reduce -70.3% 20,953 $225K
Principal Financial Group Inc. 0.00% Reduce -10.8% 20,559 $221K
Royal Bank of Canada 0.00% Add +201.5% 20,491 $220K
Gotham Asset Management 0.00% Add +88.1% 20,113 $216K
Ameritas Investment Partners, Inc. 0.01% Reduce -5.6% 19,580 $210K
Algert Global LLC 0.01% New 17,609 $189K
Envestnet Asset Management Inc. 0.00% New 17,272 $186K
OMERS ADMINISTRATION Corp 0.00% New 17,100 $184K
Phoenix Financial Ltd. 0.00% No change 16,547 $178K
Prudential Financial Inc. 0.00% Add +4.2% 14,785 $159K
State of Wisconsin Investment Board 0.00% Add +3.1% 14,265 $153K
Truist Financial Corp. 0.00% Add +3.7% 13,829 $149K
Xponance LLC 0.00% Add +4.4% 12,663 $136K
Mackenzie Financial Corp. 0.00% No change 12,617 $136K
Exchange Traded Concepts, LLC 0.00% Add +472.1% 11,917 $128K
Creative Planning 0.00% New 11,844 $127K
LPL Financial LLC 0.00% Reduce -0.1% 10,473 $112K
Central Pacific Bank - Trust Division 0.01% No change 7,600 $82K
Amalgamated Bank 0.00% Add +3.1% 7,038 $76K
KBC Group NV 0.00% New 5,748 $62K
FMR LLC 0.00% Add +9.6% 5,010 $54K
NewEdge Advisors, LLC 0.00% Reduce -30.6% 4,682 $50K
State of Wyoming 0.01% Reduce -86.5% 3,930 $42K
Innealta Capital, LLC 0.01% New 3,590 $39K
Nisa Investment Advisors, LLC 0.00% Add +7.2% 2,450 $26K
Optiver Holding B.V. 0.00% New 2,315 $25K
Parallel Advisors, LLC 0.00% Reduce -5.0% 1,531 $16K
Osaic Holdings, Inc. 0.00% Add +2.6% 1,310 $14K
Comerica Bank 0.00% Add +44.0% 959 $10K
AlphaQuest LLC 0.00% Reduce -98.5% 862 $9K
Quadrant Capital Group LLC 0.00% No change 773 $8K
SYSTM Wealth Solutions LLC 0.00% New 697 $7K
Quarry LP 0.00% Reduce -15.3% 603 $6K
Zazove Associates LLC 0.01% New 461 $5K
CIBC Private Wealth Group LLC 0.00% No change 400 $4K
Arax Advisory Partners 0.00% New 401 $4K
Albion Financial Group 0.00% No change 300 $3K
Lindbrook Capital, LLC 0.00% Add +25.5% 202 $2K
US Bancorp \de 0.00% No change 187 $2K
Mather Group, Llc. 0.00% New 150 $2K
Blue Trust, Inc. 0.00% No change 146 $2K
GAMMA Investing LLC 0.00% New 126 $1K
Bell Investment Advisors, Inc 0.00% Reduce -24.3% 103 $1K
FNY Investment Advisers, LLC 0.00% No change 110 $1K
Cwm, LLC 0.00% Add +404.4% 116 $1K
Allworth Financial LP 0.00% Reduce -24.3% 84 $888
Avior Wealth Management, LLC 0.00% New 80 $859
JFS Wealth Advisors, LLC 0.00% No change 47 $505
FinTrust Capital Advisors, LLC 0.00% No change 25 $269
Smartleaf Asset Management LLC 0.00% New 24 $257
SJS Investment Consulting Inc. 0.00% No change 20 $215
Covestor Ltd 0.00% Reduce -7.1% 13 $0

"% of holder's portfolio" is MIR's weight in each manager's 13F, not the share of Mirion Technologies Inc. the manager owns.