Mirion TechnologiesMIR

13F holders, Q1 2024 (March 31)
143holders
6famous investors
$11.37avg. 13F price*

At the end of Q1 2024, 143 institutions reported holding Mirion Technologies Inc. (MIR) in their 13F filings. The largest holders were Goldman Sachs Group Inc. ($395.7M), Vanguard Group Inc. ($242.3M) and T. Rowe Price Investment Management, Inc. ($234.7M). 6 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

InstitutionsTotal Value
New Positions30$41.7M
Exits14$107.7M

Ownership 143 holders

Goldman Sachs Group Inc. 0.08% Reduce 0.0% 34,806,291 $395.7M
Vanguard Group Inc. 0.00% Add +0.8% 21,308,031 $242.3M
T. Rowe Price Investment Management, Inc. 0.14% Add +3.9% 20,641,440 $234.7M
BlackRock Inc. 0.00% Reduce -2.5% 15,555,495 $176.9M
Swedbank AB 0.17% Add +3.9% 10,778,000 $122.5M
Janus Henderson Group PLC 0.06% Add +0.0% 9,403,114 $106.9M
Omega Advisors (Leon Cooperman) 3.56% No change 7,513,400 $85.4M
Alyeska Investment Group, L.P. 0.49% Add +34.2% 6,923,799 $78.7M
Select Equity Group, L.P. 0.24% Add +168.5% 5,960,533 $67.8M
P2 Capital Partners, LLC 7.42% Reduce -5.6% 5,520,000 $62.8M
Dimensional Fund Advisors LP 0.02% Add +35.9% 5,079,967 $57.8M
State Street Corp. 0.00% Add +0.7% 5,050,536 $57.4M
Geode Capital Management, LLC 0.00% Add +2.8% 4,200,607 $47.8M
Adage Capital Partners Gp, L.L.C. 0.07% Add +223.2% 3,040,799 $34.6M
ArrowMark Colorado Holdings LLC 0.36% Reduce -22.8% 2,798,992 $31.8M
American Century Companies Inc. 0.02% Add +22.1% 2,435,470 $27.7M
First Manhattan Co. Llc. 0.06% Reduce -1.6% 1,760,374 $20.0M
Corsair Capital Management, L.P. 5.56% Reduce -25.4% 1,742,217 $19.8M
Northern Trust Corp. 0.00% Reduce -2.2% 1,710,413 $19.4M
Lord, Abbett & Co. LLC 0.06% Reduce -7.3% 1,536,211 $17.5M
Schwartz Investment Counsel Inc. 0.62% Add +0.6% 1,499,300 $17.0M
Charles Schwab Investment Management Inc. 0.00% Add +1.2% 1,480,154 $16.8M
Nuveen Asset Management, LLC 0.00% Reduce -21.7% 1,163,309 $13.2M
Morgan Stanley 0.00% Reduce -36.6% 1,011,842 $11.5M
Crestline Management, L.P. 0.87% Reduce -10.0% 810,000 $9.2M
Cibc World Market Inc. 0.02% New 805,000 $9.2M
GAMCO Investors 0.09% Reduce -1.4% 768,645 $8.7M
Arrowstreet Capital, Limited Partnership 0.01% New 736,950 $8.4M
Bank of New York Mellon Corp 0.00% Reduce -7.0% 718,867 $8.2M
Gabelli Funds LLC 0.06% Reduce -1.4% 706,040 $8.0M
Carlson Capital, L.P. 0.57% Add +14.7% 618,478 $7.0M
JPMorgan Chase & Co. 0.00% Add +75.3% 592,714 $6.7M
UBS Group AG 0.00% Add +56.5% 578,000 $6.6M
Cibc World Markets Corp. 0.04% Reduce -46.5% 575,000 $6.5M
Verition Fund Management LLC 0.07% New 548,054 $6.2M
First Trust Advisors LP 0.01% Add +75.5% 454,069 $5.2M
Royce & Associates LP 0.04% Add +91.1% 430,000 $4.9M
Chescapmanager LLC 0.72% New 373,161 $4.2M
Bank of America Corp. 0.00% Add +191.1% 359,503 $4.1M
TD Asset Management Inc 0.00% Add +2.5% 344,452 $3.9M
Swiss National Bank 0.00% No change 343,600 $3.9M
Rhumbline Advisers 0.00% Add +0.1% 324,229 $3.7M
Renaissance Technologies 0.01% New 302,500 $3.4M
Essex Investment Management Co. LLC 0.58% Add +0.6% 259,500 $3.0M
Invesco Ltd. 0.00% Reduce -9.6% 254,534 $2.9M
Alliancebernstein L.P. 0.00% Reduce -0.0% 219,663 $2.5M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +8.6% 217,057 $2.5M
M&T Bank Corp 0.01% Reduce -18.7% 200,281 $2.3M
Hollow Brook Wealth Management LLC 0.84% Add +7.0% 198,985 $2.3M
Trexquant Investment LP 0.04% Add +429.4% 186,427 $2.1M
California State Teachers Retirement System 0.00% Reduce -6.0% 176,996 $2.0M
Barclays PLC 0.00% Reduce -43.4% 175,398 $2.0M
Legal & General Group Plc 0.00% Add +0.7% 167,363 $1.9M
Credit Suisse AG/ 0.00% Add +12.0% 166,542 $1.9M
Deutsche Bank AG 0.00% Add +67.9% 155,056 $1.8M
Aperture Investors, LLC 0.22% New 153,105 $1.7M
Russell Investments Group, Ltd. 0.00% Reduce -21.7% 148,666 $1.7M
Ardsley Advisory Partners LP 0.20% Reduce -16.7% 125,000 $1.4M
Legato Capital Management LLC 0.16% No change 120,080 $1.4M
T. Rowe Price Associates Inc. 0.00% Add +7.0% 111,519 $1.3M
MetLife Investment Management, LLC 0.01% No change 106,362 $1.2M
Jackson Creek Investment Advisors LLC 0.43% New 106,297 $1.2M
Manufacturers Life Insurance Company, The 0.00% Add +9.9% 105,065 $1.2M
American International Group, Inc. 0.00% Reduce -0.8% 98,796 $1.1M
Qube Research & Technologies Ltd 0.00% New 80,973 $921K
Wells Fargo & Company 0.00% Add +10.7% 79,683 $906K
New York State Common Retirement Fund 0.00% Reduce -11.7% 74,450 $846K
Citigroup Inc. 0.00% Reduce -83.3% 74,254 $844K
Boston Partners 0.00% Add +121.6% 72,135 $820K
SG Americas Securities, LLC 0.00% Add +1.3% 70,476 $801K
Voya Investment Management LLC 0.00% Reduce -18.3% 66,449 $756K
Walleye Capital LLC 0.01% New 63,400 $721K
Citadel Advisors 0.00% Add +19.9% 60,340 $686K
AlphaQuest LLC 0.12% New 59,333 $675K
Marshall Wace, LLP 0.00% Add +80.7% 53,610 $610K
Allspring Global Investments Holdings, LLC 0.00% New 49,509 $563K
Arizona State Retirement System 0.00% Reduce -1.7% 47,923 $545K
Capstone Investment Advisors, LLC 0.02% New 47,301 $538K
Handelsbanken Fonder AB 0.00% No change 46,831 $532K
Campbell & CO Investment Adviser LLC 0.04% New 42,726 $486K
Maverick Capital 0.01% New 40,774 $464K
Mirae Asset Global Investments Co., Ltd. 0.00% Reduce -37.5% 56,698 $456K
Teacher Retirement System of Texas 0.00% New 37,046 $421K
HRT Financial LP 0.00% Reduce -10.1% 36,451 $414K
ProShare Advisors LLC 0.00% Add +8.5% 36,017 $410K
Fox Run Management, L.L.C. 0.08% New 31,159 $354K
Wolverine Asset Management LLC 0.03% New 30,000 $341K
State of Wyoming 0.06% New 29,064 $330K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Reduce -12.3% 28,105 $320K
Victory Capital Management Inc. 0.00% Reduce -1.4% 27,471 $312K
Squarepoint Ops LLC 0.00% New 27,318 $311K
Nordwand Advisors, LLC 0.11% No change 25,000 $284K
Pictet Asset Management Holding SA 0.00% No change 24,618 $280K
Principal Financial Group Inc. 0.00% Reduce -8.8% 23,036 $262K
Lazard Asset Management LLC 0.00% Add +19.8% 22,751 $258K
Kestra Advisory Services, LLC 0.00% Add +23.0% 22,689 $258K
Jane Street Group, LLC 0.00% Reduce -88.4% 22,423 $255K
Mariner, LLC 0.00% Add +37.1% 22,284 $253K
HSBC Holdings PLC 0.00% New 22,274 $253K
Walleye Trading LLC 0.00% New 20,970 $238K
Ameritas Investment Partners, Inc. 0.01% No change 20,751 $236K
Bayesian Capital Management, LP 0.02% New 19,849 $226K
Phoenix Financial Ltd. 0.00% Add +40.3% 16,547 $188K
Landscape Capital Management, L.L.C. 0.02% Add +45.2% 15,330 $174K
Sherbrooke Park Advisers LLC 0.03% New 15,134 $172K
Prudential Financial Inc. 0.00% Reduce -0.2% 14,185 $161K
State of Wisconsin Investment Board 0.00% Reduce -16.3% 13,836 $157K
Truist Financial Corp. 0.00% Add +8.1% 13,335 $152K
Gsa Capital Partners LLP 0.01% New 12,892 $147K
Mackenzie Financial Corp. 0.00% No change 12,617 $143K
Xponance LLC 0.00% Add +0.5% 12,129 $138K
Teza Capital Management LLC 0.02% Add +1.9% 11,323 $129K
Gotham Asset Management 0.00% New 10,695 $122K
Metropolitan Life Insurance Co 0.01% Reduce -8.1% 10,690 $122K
LPL Financial LLC 0.00% Reduce -27.6% 10,478 $119K
Central Pacific Bank - Trust Division 0.01% — 7,600 $85K
Amalgamated Bank 0.00% Reduce -61.1% 6,828 $78K
Royal Bank of Canada 0.00% Reduce -89.3% 6,796 $77K
NewEdge Advisors, LLC 0.00% Reduce -58.7% 6,744 $77K
FMR LLC 0.00% Reduce -67.8% 4,571 $52K
Nisa Investment Advisors, LLC 0.00% Add +7.8% 2,286 $26K
Exchange Traded Concepts, LLC 0.00% New 2,083 $24K
Tower Research Capital LLC (TRC) 0.00% Reduce -96.3% 1,955 $22K
Parallel Advisors, LLC 0.00% No change 1,611 $18K
Osaic Holdings, Inc. 0.00% Add +2.2% 1,277 $15K
Quadrant Capital Group LLC 0.00% No change 773 $9K
Quarry LP 0.00% New 712 $8K
Comerica Bank 0.00% Add +5.7% 666 $8K
CIBC Private Wealth Group LLC 0.00% New 400 $4K
Catalyst Funds Management Pty Ltd 0.00% — 300 $3K
Albion Financial Group 0.00% No change 300 $3K
US Bancorp \de 0.00% New 187 $2K
Lindbrook Capital, LLC 0.00% No change 161 $2K
PNC Financial Services Group, Inc. 0.00% No change 150 $2K
Blue Trust, Inc. 0.00% No change 146 $2K
Bell Investment Advisors, Inc 0.00% Add +119.3% 136 $2K
Allworth Financial LP 0.00% Reduce -3.5% 111 $1K
FNY Investment Advisers, LLC 0.00% Reduce -26.7% 110 $1K
JFS Wealth Advisors, LLC 0.00% No change 47 $535
FinTrust Capital Advisors, LLC 0.00% No change 25 $285
SJS Investment Consulting Inc. 0.00% Add +17.6% 20 $228
Cwm, LLC 0.00% New 23 $0
Covestor Ltd 0.00% Reduce -6.7% 14 $0

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