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Mirion Technologies, Inc. hedge fund holdings

MIRNYSE
$14.60+0.25 (+1.74%)as of Oct 2, 2026

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

MIR · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-36.2%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 202516866$671M$276M276Aug 14, 2025
Q3 2025169108$1.76B$741M318Nov 14, 2025
Q4 2025151119$565M$719M343Feb 14, 2026
Q1 2026147134$476M$543M345May 15, 2026
Q2 2026157133$708M$555M329Aug 14, 2026

Quarterly action breakdown

Q2 2026
329 filers
New position
48
$80.1M+4.47M sh
Increased
109
$628M+35M sh
Reduced
80
-$378M-21.1M sh
Out / sold
53
-$177M-9.88M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
Congress Asset Management CoAdded 500.10%+$99.9M$120M0.74%Jul 7, 2026
Bamco IncAdded 221.82%+$48.3M$70M0.11%Aug 14, 2026
Maverick Capital LtdAdded 97.94%+$46.5M$94M0.83%Aug 14, 2026
Two Creeks Capital Management, LPSell 100%-$45.5M$00.00%Aug 14, 2026
Daiwa Securities Group Inc.Sell 100%-$22.6M$00.00%Jul 31, 2026
Royal London Asset Management LtdNew Buy+$21.1M$21.1M0.04%Aug 13, 2026
Alta Park Capital, LPSell 100%-$18.2M$00.00%Aug 14, 2026
Lord, Abbett & Co. LLCSell 100%-$17.4M$00.00%Aug 14, 2026
Massachusetts Financial Services CoReduce 52.12%-$14.9M$13.6M0.00%Aug 3, 2026
Oberweis Asset Management Inc/Sell 100%-$13.8M$00.00%Aug 14, 2026
Fred Alger Management, LLCReduce 82.84%-$13.5M$2.8M0.01%Aug 14, 2026
Swedbank ABReduce 19.90%-$11.3M$45.4M0.04%Jul 15, 2026
Nissay Asset Management Corp /JapanNew Buy+$10.7M$10.7M0.05%Aug 14, 2026
Conestoga Capital Advisors, LLCReduce 31.84%-$10.5M$22.4M0.49%Jul 24, 2026
WCM Investment Management, LLCNew Buy+$10.3M$10.3M0.02%Aug 13, 2026
Nomura Asset Management International Inc.Reduce 77.26%-$10.1M$2.97M0.00%Aug 14, 2026
Artemis Investment Management LLPSell 100%-$10M$00.00%Jul 23, 2026
Select Equity Group, L.P.Added 49.32%+$9.33M$28.3M0.14%Aug 14, 2026
Ensign Peak Advisors, IncReduce 81.62%-$9.24M$2.08M0.00%Aug 14, 2026
Schroder Investment Management GroupAdded 40.39%+$8.01M$27.8M0.02%Aug 13, 2026
Keystone Investors Pte LtdSell 100%-$7.26M$00.00%Aug 14, 2026
Zacks Investment ManagementSell 100%-$7.23M$00.00%Aug 13, 2026
T. Rowe Price Investment Management, Inc.Reduce 2.32%-$6.09M$256M0.17%Aug 14, 2026
Stephens Investment Management Group LLCAdded 22.07%+$5.44M$30.1M0.32%Jul 29, 2026
Frontier Capital Management Co LLCNew Buy+$5.36M$5.36M0.05%Aug 14, 2026
Schwartz Investment Counsel IncReduce 32.82%-$5.03M$10.3M0.34%Jul 27, 2026
Wellington Management Group LLPAdded 31.17%+$4.68M$19.7M0.00%Aug 14, 2026
Holocene Advisors, LPAdded 297.01%+$4.53M$6.06M0.01%Aug 14, 2026
Robeco Schweiz AGAdded 84.35%+$3.48M$7.6M0.12%Jul 28, 2026
Axiom Investors LLCReduce 40.50%-$3.43M$5.04M0.04%Aug 12, 2026
Aberdeen Group plcAdded 37.49%+$3.07M$11.3M0.02%Jul 31, 2026
Aperture Investors, LLCSell 100%-$2.82M$00.00%Aug 14, 2026
DDD Partners, LLCSell 100%-$2.65M$00.00%Aug 5, 2026
Loomis Sayles & Co L PReduce 5.43%-$2.6M$45.3M0.06%Aug 14, 2026
B. Metzler seel. Sohn & Co. AGNew Buy+$2.6M$2.6M0.02%Aug 11, 2026
UniSuper Management Pty LtdSell 100%-$2.41M$00.00%Aug 14, 2026
Silvercrest Asset Management Group LLCAdded 19.53%+$2.38M$14.6M0.10%Aug 14, 2026
MirovaReduce 33.22%-$2.19M$4.41M0.16%Aug 13, 2026
Summit Creek Advisors LLCReduce 37.18%-$2.11M$3.56M1.21%Aug 7, 2026
Corsair Capital Management, L.P.Reduce 11.68%-$2.06M$15.6M1.94%Aug 14, 2026
Natixis Advisors, LLCAdded 211.90%+$2.04M$3M0.00%Aug 14, 2026
Montanaro Asset Management LtdAdded 37.13%+$2.03M$7.51M2.37%Aug 12, 2026
Bastion Asset Management Inc.Reduce 29.97%-$2M$4.68M1.59%Aug 10, 2026
First Trust Advisors LPReduce 74.04%-$1.95M$684K0.00%Aug 11, 2026
Neo Ivy Capital ManagementAdded 213.55%+$1.71M$2.51M0.58%Aug 14, 2026
First National Advisers, LLCReduce 88.54%-$1.66M$215K0.03%Jul 21, 2026
Dana Investment Advisors, Inc.Sell 100%-$1.55M$00.00%Aug 13, 2026
O'Connor Alternative Investments LLCNew Buy+$1.48M$1.48M0.11%Aug 14, 2026
Deltec Asset Management LLCNew Buy+$1.43M$1.43M0.21%Jul 21, 2026
Register Financial Advisors LLCAdded 72.50%+$1.35M$3.21M0.98%Jul 15, 2026
Diversify Advisory Services, LLCNew Buy+$1.33M$1.33M0.02%Aug 10, 2026
Diversify Wealth Management, LLCNew Buy+$1.33M$1.33M0.02%Jul 30, 2026
Zevenbergen Capital Investments LLCAdded 22.68%+$1.33M$7.18M0.16%Jul 16, 2026
Tema ETFs LLCAdded 45.38%+$1.27M$4.06M0.13%Jul 10, 2026
Tribune Investment Group LPSell 100%-$1.21M$00.00%Aug 13, 2026
Qsemble Capital Management, LPAdded 558.88%+$1.18M$1.4M0.18%Aug 3, 2026
Madison Asset Management, LLCAdded 52.83%+$1.18M$3.41M0.04%Aug 10, 2026
Tidal Investments LLCAdded 8.47%+$1.18M$15.1M0.03%Aug 13, 2026
Fox Run Management, L.L.C.New Buy+$1.14M$1.14M0.19%Aug 4, 2026
Hollow Brook Wealth Management LLCAdded 36.18%+$1.12M$4.2M0.83%Aug 14, 2026
Asset Management One Co., Ltd.Sell 100%-$1.03M$00.00%Jul 28, 2026
Jennison Associates LLCReduce 5.89%-$996K$15.9M0.01%Aug 3, 2026
Nomura Holdings IncReduce 7.19%-$985K$12.7M0.01%Aug 14, 2026
Thornburg Investment Management IncSell 100%-$959K$00.00%Aug 13, 2026
Nicholas Investment Partners, LPSell 100%-$916K$00.00%Aug 14, 2026
Curi Capital, LLCAdded 49.85%+$790K$2.38M0.04%Aug 14, 2026
KLP Kapitalforvaltning AsAdded 80.19%+$748K$1.68M0.01%Aug 12, 2026
Sumitomo Mitsui DS Asset Management Company, LtdReduce 11.24%-$733K$5.79M0.04%Jul 22, 2026
Peregrine Capital Management LLCAdded 8.75%+$725K$9.02M0.29%Jul 17, 2026
State of Alaska, Department of RevenueReduce 30.49%-$720K$1.64M0.02%Jul 20, 2026
Twin Tree Management, LPSell 100%-$708K$00.00%Aug 12, 2026
Troluce Capital Advisors LLCAdded 2.61%+$703K$27.6M2.84%Aug 14, 2026
Covea FinanceAdded 32.89%+$703K$2.84M0.09%Jul 13, 2026
Concentric Capital Strategies, LPNew Buy+$702K$702K0.04%Aug 14, 2026
Portside Wealth Group, LLCAdded 213.63%+$634K$930K0.11%Jul 14, 2026
OP Asset Management LtdNew Buy+$631K$631K0.01%Jul 28, 2026
Public Sector Pension Investment BoardReduce 3.97%-$623K$15.1M0.04%Aug 13, 2026
Pacer Advisors, Inc.Added 46.16%+$531K$1.68M0.00%Aug 13, 2026
Axq Capital, LPSell 100%-$524K$00.00%Aug 6, 2026
Van Eck Associates CorpSell 100%-$522K$00.00%Aug 14, 2026
Quantinno Capital Management LPReduce 68.44%-$512K$236K0.00%Aug 13, 2026
Polen Capital Management LLCSell 100%-$463K$00.00%Aug 4, 2026
Illinois Municipal Retirement FundAdded 18.23%+$413K$2.68M0.03%Aug 12, 2026
State of New Jersey Common Pension Fund DReduce 19.66%-$369K$1.51M0.01%Aug 4, 2026
Norden Group LLCNew Buy+$357K$357K0.03%Jul 29, 2026
Sandler Capital ManagementSell 100%-$353K$00.00%Aug 14, 2026
SCP Investment, LPSell 100%-$349K$00.00%Aug 7, 2026
Segall Bryant & Hamill, LLCAdded 1.73%+$345K$20.3M0.24%Aug 12, 2026
Atria Investments, IncAdded 158.01%+$340K$554K0.01%Jul 28, 2026
Allstate CorpNew Buy+$339K$339K0.00%Aug 13, 2026
Jain Global LLCSell 100%-$335K$00.00%Aug 14, 2026
Groupama Asset ManagmentNew Buy+$309K$309K0.00%Aug 14, 2026
TCW Group IncAdded 0.77%+$309K$40.4M0.27%Aug 3, 2026
Emerald Advisers, LLCReduce 1.22%-$301K$24.5M0.58%Aug 5, 2026
AlphaGrep UK LtdSell 100%-$287K$00.00%Aug 14, 2026
Arete Wealth Advisors, LLCNew Buy+$287K$287K0.02%Aug 13, 2026
CenterBook Partners LPSell 100%-$286K$00.00%Aug 11, 2026
Marietta Investment Partners LLCSell 100%-$276K$00.00%Aug 12, 2026
One Wealth Capital Management, LLCNew Buy+$269K$269K0.08%Jul 24, 2026
Ulland Investment Advisors, LLCNew Buy+$266K$266K0.20%Jul 16, 2026

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