| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | $786,972,923 | 35,690,382 | BlackRock, Inc. | 30 Sep 2025 | |||
| VANGUARD GROUP INC | 12% | $707,530,286 | 30,418,327 | The Vanguard Group | 30 Sep 2025 | |||
| KUWAIT INVESTMENT AUTHORITY ON BEHALF OF THE GOVT OF KUWAIT | 4.1% | $238,218,661 | 10,171,591 | Kuwait Investment Authority, acting for and on behalf of the Government of the State of Kuwait (KIA) | 29 Jul 2022 | |||
| GSAM Holdings LLC | 2.3% | $77,448,166 | 5,187,419 | GOLDMAN SACHS GROUP INC | 17 Dec 2024 |
As of 30 Sep 2025, 339 institutional investors reported holding 255,056,050 shares of Mirion Technologies, Inc. - Class A Common Stock, $0.0001 par value per share (MIR). This represents 103% of the company’s total 248,087,585 outstanding shares.
The largest institutional shareholders of Mirion Technologies, Inc. - Class A Common Stock, $0.0001 par value per share (MIR) together control 75% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | 36,430,491 | +114% | 0.01% | $847,373,220 |
| VANGUARD GROUP INC | 12% | 30,418,327 | +28% | 0.01% | $707,530,286 |
| T. Rowe Price Investment Management, Inc. | 8.7% | 21,566,642 | +2.9% | 0.31% | $501,641,000 |
| FMR LLC | 3.7% | 9,078,301 | +859% | 0.01% | $211,161,292 |
| STATE STREET CORP | 3.6% | 8,816,346 | +73% | 0.01% | $205,068,208 |
| COOPERMAN LEON G | 3.4% | 8,383,441 | +18% | 6.1% | $194,998,838 |
| JANUS HENDERSON GROUP PLC | 3.1% | 7,661,937 | -4.1% | 0.08% | $178,218,923 |
| DIMENSIONAL FUND ADVISORS LP | 2.5% | 6,206,933 | -11% | 0.03% | $144,358,614 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 5,628,909 | +19% | 0.01% | $130,948,881 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2.2% | 5,391,772 | +41% | 0.04% | $125,412,617 |
| GOLDMAN SACHS GROUP INC | 2% | 5,054,592 | +692% | 0.02% | $117,569,809 |
| UBS Group AG | 1.9% | 4,796,833 | +181% | 0.02% | $111,574,336 |
| Swedbank AB | 1.6% | 4,005,200 | -2.9% | 0.09% | $93,160,952 |
| Two Creeks Capital Management, LP | 1.5% | 3,598,763 | 6% | $83,707,227 | |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 3,229,538 | -4.3% | 0.04% | $75,119,085 |
| Alyeska Investment Group, L.P. | 1.3% | 3,127,745 | -30% | 0.22% | $72,751,349 |
| Hood River Capital Management LLC | 1.1% | 2,763,284 | +88% | 0.76% | $64,273,986 |
| LOOMIS SAYLES & CO L P | 1.1% | 2,761,535 | +73% | 0.08% | $64,233,305 |
| Invesco Ltd. | 1.1% | 2,756,890 | +5.3% | 0.01% | $64,125,260 |
| BROWN ADVISORY INC | 1.1% | 2,721,783 | -50% | 0.08% | $63,308,678 |
| MAVERICK CAPITAL LTD | 1% | 2,588,579 | -51% | 0.81% | $60,210,348 |
| NORTHERN TRUST CORP | 0.95% | 2,349,786 | +22% | 0.01% | $54,656,023 |
| ROYAL BANK OF CANADA | 0.93% | 2,310,250 | +35% | 0.01% | $53,736,000 |
| LORD, ABBETT & CO. LLC | 0.92% | 2,288,182 | -7% | 0.16% | $53,223,000 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.9% | 2,234,627 | +33% | 0.01% | $51,977,424 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 7,062,292 | $166,047,770 | +$5,205,167 | $23.42 | 35 |
| 2025 Q3 | 255,056,050 | $5,931,269,929 | +$1,121,049,770 | $23.26 | 339 |
| 2025 Q2 | 207,351,906 | $4,463,739,712 | +$390,863,249 | $21.53 | 300 |
| 2025 Q1 | 190,143,613 | $2,758,422,550 | -$73,903,530 | $14.50 | 228 |
| 2024 Q4 | 193,940,415 | $3,383,987,298 | -$173,575,773 | $17.45 | 221 |
| 2024 Q3 | 204,602,306 | $2,264,947,633 | +$83,120,387 | $11.07 | 172 |
| 2024 Q2 | 197,272,750 | $2,118,677,881 | +$90,798,200 | $10.74 | 154 |
| 2024 Q1 | 188,536,766 | $2,143,665,971 | +$20,871,393 | $11.37 | 139 |
| 2023 Q4 | 187,870,653 | $1,925,693,855 | +$7,764,495 | $10.25 | 124 |
| 2023 Q3 | 187,912,198 | $1,403,706,732 | +$61,043,099 | $7.47 | 124 |
| 2023 Q2 | 174,773,821 | $1,476,846,436 | +$77,018,708 | $8.45 | 96 |
| 2023 Q1 | 170,036,490 | $1,452,110,276 | +$150,571,811 | $8.54 | 115 |
| 2022 Q4 | 153,291,192 | $1,013,210,591 | -$120,248,912 | $6.61 | 118 |
| 2022 Q3 | 170,652,341 | $1,274,773,618 | +$81,805,780 | $7.47 | 119 |
| 2022 Q2 | 160,031,240 | $921,771,417 | +$53,869,755 | $5.76 | 112 |
| 2022 Q1 | 148,701,807 | $1,200,015,627 | +$16,144,772 | $8.07 | 106 |
| 2021 Q4 | 144,900,158 | $1,517,510,036 | +$1,510,417,095 | $10.47 | 93 |
| 2021 Q3 | 1,606,935 | $16,422,440 | +$16,402,000 | $10.22 | 4 |
| 2021 Q2 | 2,000 | $20,800 | +$20,800 | $10.40 | 1 |