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; 354 institutions reported holding it in 13F filings for Q2 2026, worth $4.70B in total; Maverick Capital is the only superinvestor holding it.
Key figures
- Market capNo recent share count in SEC filings
- –
- Insider buysLast 90 days, $312.0K in total
- 1
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −8 vs. previous quarter
- 354
- 13F valueReported value at the end of Q2 2026
- $4.70B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $925.4M
- +7.5% year over year
- Net income, FY2025
- $28.8M
- No comparable prior period
- Free cash flow, FY2025
- $106.9M
- +112.5% year over year
- Revenue, Q3 FY2026
- $277.8M
- +24.5% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 35.7M
- Shares sold short
- Change
- −5.45M
- −13.2% vs. previous
- Days to cover
- 7.20
- At average daily volume
Superinvestors holding MIR, Q2 2026
Go to the superinvestors tab1 superinvestor reports holding Mirion Technologies, Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Maverick Capital
Lee Ainslie
0.8%
Mirion Technologies, Inc.'s share of the portfolio
- Shares
- 5,245,039
- Value
- $94.0M
Latest insider trades
See all insider tradesOpen-market purchases and sales by Mirion Technologies, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 (view filing)4:10 PM ET | Sep 2 | Same day | Schopfer BrianChief Financial Officer | PPurchaseClass A Common Stock | +20.0K | $15.60 | +$312.0K | +2.2%933.3K after | |
| May 8, 2026 (view filing) | May 7 | 1 day | Moore Christopher A.Chief Accounting Officer (PAO) | SSaleClass A Common Stock | −8.40K | $19.64 | −$165.0K | −27.5%22.2K after | |
| Dec 12, 2025 (view filing) | Dec 10 | 2 days | Kingsley Lawrence DDirector | SSaleClass A Common Stock | −350.0K | $24.73 | −$8.66M | −9.1%3.51M after | |
| Nov 21, 2025 (view filing) | Nov 21 | Same day | Kingsley Lawrence DDirector | SSaleClass A Common Stock | −300.0K | $23.83 | −$7.15M | −7.1%3.90M after | |
| Nov 12, 2025 (view filing) | Nov 11 | 1 day | Eloy LoicNuclear & Safety President | SSaleClass A Common Stock | −45.0K | $27.24 | −$1.23M | −31.5%97.8K after | |
| Nov 12, 2025 (view filing) | Nov 10 | 2 days | Lee EmmanuelleChief Legal Officer | SSaleClass A Common Stock | −12.5K | $27.41 | −$342.6K | −12.9%84.6K after | |
| Nov 10, 2025 (view filing) | Nov 6 | 4 days | Schopfer BrianChief Financial Officer | SSaleClass A Common Stock | −100.0K | $27.66 | −$2.77M | −10.0%904.4K after | 2 lots |
| Aug 13, 2025 (view filing) | Aug 11-12 | 2 days | Logan Thomas DChief Executive Officer | SSaleClass A Common Stock | −500.0K | $21.48 | −$10.7M | −12.3%3.57M after | 2 lots |
| Aug 6, 2025 (view filing) | Aug 5 | 1 day | Eloy LoicNuclear & Safety President | SSaleClass A Common Stock | −22.2K | $21.30 | −$472.1K | −13.4%142.8K after | |
| Jun 27, 2025 (view filing) | Jun 25 | 2 days | Schopfer BrianChief Financial Officer | SSaleClass A Common Stock | −75.0K | $21.00 | −$1.57M | −7.5%919.4K after |
Top 10 13F holders, Q2 2026
See all 354 holdersThe largest institutional positions in Mirion Technologies, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 38,262,307 | $686.0M | 0.01% | +404,610+1.1% | Added |
| Vanguard Portfolio Management LLC | 18,179,850 | $326.0M | 0.01% | +274,128+1.5% | Added |
| T. Rowe Price Investment Management, Inc. | 14,288,075 | $256.2M | 0.17% | −339,720−2.3% | Reduced |
| Vanguard Capital Management LLC | 10,613,869 | $190.3M | 0.00% | +108,674+1.0% | Added |
| Goldman Sachs Group Inc | 10,406,605 | $186.6M | 0.02% | +3,056,937+41.6% | Added |
| State Street Corp | 9,923,609 | $177.9M | 0.01% | +493,592+5.2% | Added |
| Alyeska Investment Group, L.P. | 9,534,955 | $171.0M | 0.44% | +6,833,375+252.9% | Added |
| Cooperman Leon G | 8,383,441 | $150.3M | 4.24% | 00.0% | Unchanged |
| FMR LLC | 7,329,386 | $131.4M | 0.01% | +777,694+11.9% | Added |
| Congress Asset Management Co | 6,685,434 | $119.9M | 0.74% | +5,571,373+500.1% | Added |
Holders of 5% or more of MIR
See all 4 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Mirion Technologies, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 14.80%35.7M shares | – | Oct 2, 20251 filing | Oct 2, 2025 | SEC |
| Vanguard Portfolio Management LLC | 13G | 7.40%18.1M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| T. Rowe Price Investment Management, Inc. | 13G/A | 6.10%15.1M shares | – | Feb 14, 20243 filings | Feb 17, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.03%12.3M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |