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Mirion Technologies, Inc.

MIR
Exchange
NYSE
Industry
Measuring & Controlling Devices, NEC
SEC CIK
0001809987

In the last 90 days, Mirion Technologies, Inc. insiders filed 1 open-market purchase and 0 sales; 351 institutions reported holding it in 13F filings for Q2 2026, worth $4.70B in total; Maverick Capital is the only superinvestor holding it.

Q2 2026 vs. Q1 2026

How the institutions holding Mirion Technologies, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of MIR: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders3625351−6
Shares253.5M4.08M262.0M+12.6M (+5.0%)
Value$4.71B$75.9M$4.70B+$56.2M (+1.2%)

5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (59)

Institutions that held Mirion Technologies, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to MIR in Q2 2026
InstitutionSharesValue% of portfolio
Jupiter Topco LLC4,114,766$73.8M0.03%
Royal London Asset Management Ltd1,176,241$21.1M0.04%
Clearbridge Investments, LLC1,096,729$19.7M0.02%
ExodusPoint Capital Management, LP605,134$10.9M0.10%
Nissay Asset Management Corp599,278$10.7M0.05%
WCM Investment Management, LLC591,279$10.3M0.02%
HRT Financial LP339,916$6.09M0.01%
Frontier Capital Management Co LLC298,979$5.36M0.05%
B. Metzler seel. Sohn & Co. AG144,834$2.60M0.02%
Cambridge Investment Research Advisors, Inc.100,446$1.80M0.00%
O'Connor Alternative Investments LLC82,400$1.48M0.11%
Deltec Asset Management LLC80,000$1.43M0.21%
Diversify Advisory Services, LLC78,781$1.33M0.02%
Diversify Wealth Management, LLC78,781$1.33M0.02%
Brevan Howard Capital Management LP72,392$1.30M0.02%
Fox Run Management, L.L.C.63,660$1.14M0.19%
Caption Management, LLC40,000$717.2K0.03%
Concentric Capital Strategies, LP39,156$702.1K0.04%
Parallax Volatility Advisers, L.P.38,018$681.7K0.03%
OP Asset Management Ltd35,177$630.7K0.01%
M&T Bank Corp25,105$450.5K0.00%
Norden Group LLC19,926$357.3K0.03%
Two Sigma Investments, LP19,771$354.5K0.00%
Allstate Corp18,896$338.8K0.00%
Groupama Asset Managment17,222$308.8K0.00%
Compagnie Lombard Odier SCmA16,044$287.7K0.00%
Arete Wealth Advisors, LLC15,990$286.7K0.02%
Global Retirement Partners, LLC15,562$279.0K0.00%
Virginia Retirement Systems Et Al15,400$276.1K0.00%
One Wealth Capital Management, LLC15,017$269.3K0.08%
Ulland Investment Advisors, LLC14,810$266.0K0.20%
Delta Global Management LP13,676$245.2K0.03%
Two Sigma Securities, LLC13,505$242.1K0.02%
VisionPoint Advisory Group, LLC12,618$226.2K0.04%
Lighthouse Investment Partners, LLC12,076$216.5K0.01%
Walleye Trading LLC10,692$191.7K0.00%
Jump Financial, LLC10,592$189.9K0.00%
Argent Trust Co10,390$186.3K0.01%
Lynx Capital Group Ltd10,000$179.3K0.07%
SRS Capital Advisors, Inc.9,248$165.8K0.00%
Nykredit A/S7,660$137.3K0.00%
Optiver Holding B.V.2,283$40.9K0.00%
Silver Grove Financial Group, Inc.611$11.0K0.01%
Crewe Advisors LLC484$8.68K0.00%
Accent Capital Management, LLC347$6.22K0.00%
Action Point Financial Planning, LLC173$3.07K0.00%
Kilter Group LLC101$1.81K0.00%
Washington Trust Advisors, Inc.82$1.47K0.00%
Creative Capital Management Investments LLC57$1.02K0.00%
Mascoma Wealth Management LLC26$4660.00%
Plante Moran Financial Advisors, LLC19$3410.00%
Davis Capital Management13$2330.00%
LRI Investments, LLC10$1790.00%
Ankerstar Wealth, LLC8$1430.00%
Maryland Capital Advisors Inc.2$360.00%
Addison Advisors LLC1$250.00%
TSFG, LLC3$00.00%
Evolution Advisers, Inc.20$00.00%
Navigoe, LLC4$00.00%

Sold out (65)

Institutions that held Mirion Technologies, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of MIR in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Two Creeks Capital Management, LP2,449,059$45.5M
Brown Advisory Inc1,300,073$24.2M
Daiwa Securities Group Inc.1,217,497$22.6M
Alta Park Capital, LP977,138$18.2M
Lord, Abbett & Co. LLC937,044$17.4M
Oberweis Asset Management Inc744,267$13.8M
Artemis Investment Management LLP539,134$10.0M
Zacks Investment Management388,877$7.23M
Aperture Investors, LLC151,685$2.82M
DDD Partners, LLC142,790$2.65M
UniSuper Management Pty Ltd129,502$2.41M
Qube Research & Technologies Ltd123,462$2.30M
First National Bank of Omaha113,516$2.11M
Dana Investment Advisors, Inc.83,120$1.55M
Capstone Investment Advisors, LLC75,700$1.41M
Tribune Investment Group LP65,000$1.21M
Asset Management One Co.,Ltd.55,723$1.03M
Thornburg Investment Management Inc51,597$959.2K
PEAK6 LLC50,935$946.9K
Nicholas Investment Partners, LP49,278$916.1K
Hudson Bay Capital Management LP46,270$860.2K
Blackstone Group Inc.42,414$788.5K
Twin Tree Management, LP38,075$707.8K
Axq Capital, LP28,167$523.6K
Van Eck Associates Corp28,073$522.0K
Polen Capital Management LLC24,921$463.3K
Squarepoint Ops LLC21,567$400.9K
Janney Montgomery Scott LLC21,039$391.0K
Sandler Capital Management18,982$352.9K
SCP Investment, LP18,800$349.5K
Jain Global LLC18,001$334.6K
AlphaGrep UK Ltd15,430$286.8K
CenterBook Partners LP15,373$285.8K
Marietta Investment Partners LLC14,833$275.7K
Tributary Capital Management, LLC14,800$275.1K
Mirabella Financial Services LLP14,273$265.3K
Twinbeech Capital LP14,008$260.4K
Aigen Investment Management, LP10,827$201.3K
Park Avenue Securities LLC10,816$201.0K
Beacon Pointe Advisors, LLC10,694$198.8K
Premier Fund Managers Ltd11,192$194.0K
Prelude Capital Management, LLC10,000$185.9K
Tredje AP-fonden4,662$86.7K
NBC Securities, Inc.3,891$72.3K
Aster Capital Management (DIFC) Ltd4,804$69.7K
REAP Financial Group, LLC1,415$26.3K
MAI Capital Management1,325$24.6K
Quadrant Capital Group LLC1,065$19.8K
Strive Financial Group ,LLC983$18.0K
Cullen/Frost Bankers, Inc.838$15.6K
Raleigh Capital Management Inc.798$14.8K
Transamerica Financial Advisors, Inc.659$12.3K
Root Financial Partners, LLC615$11.4K
Golden State Equity Partners510$9.48K
Harbour Investments, Inc.486$9.05K
CoreCap Advisors, LLC356$6.62K
Private Trust Co NA201$3.74K
Whittier Trust Co195$3.69K
Quarry LP122$2.27K
Richardson Capital Management LLC89$1.66K
Twin Peaks Wealth Advisors, LLC74$1.38K
Massmutual Trust Co FSB11$204
Vermillion Wealth Management, Inc.11$204
Dunhill Financial, LLC4$83
Hughes Financial Services, LLC1$19

Not filed for Q2 2026 yet (5)

Institutions that held Mirion Technologies, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MIR in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Janus Henderson Group PLC4,043,089$75.2M
Gibbs Wealth Management23,922$444.7K
CWM, LLC16,172$300.6K
Sunbelt Securities, Inc.69$1.28K
Anfield Capital Management, LLC14$260