Mirion Technologies, Inc.
Total Trades
38
Buys
0
Sells
24
Largest Trade
N/A
Insiders
8
Institutional Funds
302
Inst. Value
$1M+
Activist Filings
29
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Kingsley Lawrence D | Director | SELL | $1M+ | 350K | $24.73 | Dec 12, 2025 |
| Kingsley Lawrence D | Director | SELL | $1M+ | 300K | $23.83 | Nov 21, 2025 |
| Eloy Loic | Nuclear & Safety P… | SELL | $1M+ | 45K | $27.24 | Nov 12, 2025 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $100K–$500K | 13K | $27.41 | Nov 12, 2025 |
| Schopfer Brian | CFO | SELL | $1M+ | 100K | $27.65 | Nov 10, 2025 |
| Schopfer Brian | CFO | GRANT | N/A | 100K | — | Nov 10, 2025 |
| Schopfer Brian | CFO | SELL | $1M+ | 75K | $21.00 | Jun 27, 2025 |
| Schopfer Brian | CFO | GRANT | N/A | 75K | — | Jun 27, 2025 |
| Kingsley Lawrence D | Director | SELL | $1M+ | 500K | $17.94 | May 23, 2025 |
| Schopfer Brian | CFO | SELL | $1M+ | 75K | $18.27 | May 23, 2025 |
| Schopfer Brian | CFO | GRANT | N/A | 75K | — | May 23, 2025 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $15K–$50K | 3K | $14.27 | Nov 4, 2024 |
| Lee Emmanuelle | Chief Legal Officer | GRANT | N/A | 3K | — | Nov 4, 2024 |
| Logan Thomas D | CEO | GRANT | N/A | 8K | — | Oct 28, 2024 |
| Logan Thomas D | CEO | SELL | $100K–$500K | 8K | $14.11 | Oct 28, 2024 |
| Lee Emmanuelle | Chief Legal Officer | GRANT | N/A | 5K | — | Sep 26, 2024 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $50K–$100K | 5K | $10.60 | Sep 26, 2024 |
| Logan Thomas D | CEO | GRANT | N/A | 8K | — | Sep 26, 2024 |
| Logan Thomas D | CEO | SELL | $50K–$100K | 8K | $10.47 | Sep 26, 2024 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $50K–$100K | 5K | $11.01 | Aug 30, 2024 |
| Lee Emmanuelle | Chief Legal Officer | GRANT | N/A | 5K | — | Aug 30, 2024 |
| Logan Thomas D | CEO | GRANT | N/A | 8K | — | Aug 27, 2024 |
| Logan Thomas D | CEO | SELL | $50K–$100K | 8K | $11.00 | Aug 27, 2024 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $50K–$100K | 5K | $10.76 | Jun 27, 2024 |
| Lee Emmanuelle | Chief Legal Officer | GRANT | N/A | 5K | — | Jun 27, 2024 |
| Logan Thomas D | CEO | SELL | $50K–$100K | 8K | $10.89 | Jun 25, 2024 |
| Logan Thomas D | CEO | GRANT | N/A | 8K | — | Jun 25, 2024 |
| Moore Christopher A. | Chief Accounting O… | SELL | $50K–$100K | 8K | $10.29 | Jun 13, 2024 |
| Lee Emmanuelle | Chief Legal Officer | GRANT | N/A | 5K | — | Jun 10, 2024 |
| Lee Emmanuelle | Chief Legal Officer | SELL | $50K–$100K | 5K | $10.17 | Jun 10, 2024 |
| Logan Thomas D | CEO | SELL | $50K–$100K | 8K | $10.86 | May 30, 2024 |
| Logan Thomas D | CEO | GRANT | N/A | 8K | — | May 30, 2024 |
| Schopfer Brian | CFO | GRANT | N/A | 91K | — | Mar 21, 2024 |
| Schopfer Brian | CFO | SELL | $1M+ | 91K | $11.00 | Mar 21, 2024 |
| Moore Christopher A. | Chief Accounting O… | SELL | $15K–$50K | 3K | $7.92 | Jun 2, 2023 |
| Charterhouse General Partners (IX) Ltd | Insider | SELL | $1M+ | 9.8M | $8.64 | Mar 8, 2023 |
| Eloy Loic | Industrial Group P… | SELL | N/A | 40K | — | Mar 7, 2023 |
| GSAM Holdings LLC | Director | SELL | $15K–$50K | 3K | $6.06 | Dec 12, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 302 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 9.2M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 5.0M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 3.7M | $1M+ | SH |
| Swedbank AB | 3.4M | $1M+ | SH |
| Swedbank AB | 3.4M | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 3.2M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 2.6M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.3M | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 2.1M | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 2.1M | $1M+ | SH |
| Artemis Investment Management LLP | 2.0M | $1M+ | SH |
| Conestoga Capital Advisors, LLC | 1.9M | $1M+ | SH |
| Chescapmanager LLC | 1.7M | $1M+ | SH |
| BROWN ADVISORY INC | 1.5M | $1M+ | SH |
| Alyeska Investment Group, L.P. | 1.5M | $1M+ | SH |
| SEGALL BRYANT & HAMILL, LLC | 1.2M | $1M+ | SH |
| EMERALD ADVISERS, LLC | 1.1M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.1M | $1M+ | SH |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 1.0M | $1M+ | SH |
| TimesSquare Capital Management, LLC | 967K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Kuwait Investment Authority, acting for and on behalf of the Government of the State of Kuwait (KIA)
SC 13G/A · Jan 21, 2026
4.1%
10.2M shares
SC 13G/A · Oct 31, 2025
12.4%
30.4M shares
SC 13G/A · Oct 2, 2025
14.8%
35.7M shares
SC 13D/A · Dec 19, 2024
2.3%
5.1M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Nov 14, 2024
8.9%
20.2M shares
SC 13D/A · Nov 13, 2024
5.5%
12.4M shares
SC 13D/A · Nov 6, 2024
4.7%
10.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Aug 12, 2024
10.0%
22.0M shares
SC 13D/A · Aug 1, 2024
7.1%
16.0M shares
SC 13D/A · Jun 6, 2024
7.9%
17.8M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Feb 14, 2024
9.1%
19.9M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.7%
21.1M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Feb 12, 2024
4.3%
9.4M shares
SC 13G · Jan 26, 2024
7.3%
15.9M shares
SC 13D/A · Jul 7, 2023
10.8%
24.5M shares
Charterhouse General Partners (IX) Ltd
SC 13D/A · May 16, 2023
3.7%
8.0M shares
SC 13D/A · Apr 24, 2023
10.9%
24.5M shares
SC 13G/A · Apr 6, 2023
4.8%
10.5M shares
Charterhouse General Partners (IX) Ltd
SC 13D/A · Mar 8, 2023
6.9%
15.0M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Feb 10, 2023
5.8%
11.7M shares
SC 13G · Feb 3, 2023
5.2%
10.4M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G · Dec 21, 2022
6.0%
11.9M shares
SC 13D/A · Dec 7, 2022
11.8%
24.5M shares
SC 13D/A · Oct 19, 2022
11.8%
24.5M shares
SC 13G/A · Oct 14, 2022
0.0%
0 shares
SC 13G · Mar 10, 2022
11.8%
24.5M shares
Alyeska Investment Group, L.P.
SC 13G/A · Feb 25, 2022
7.0%
13.9M shares
Alyeska Investment Group, L.P.
SC 13G/A · Feb 15, 2022
0.0%
0 shares
Ratan Capital Master Fund, Ltd
SC 13G/A · Feb 14, 2022
1.1%
2.2M shares