Stocks › MIR
Mirion Technologies, Inc.
MIR·NYSE·
United States·USD
United States·USD$16.27
+1.35 (+9.05%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
MIR
Mirion Technologies, Inc. · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
MIRS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of MIR by members of U.S. Congress · 3 on record · 1 in the last 12 months
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Ro KhannaHouse · D · CA |
MIRMirion Technologies, Inc. · Stock |
Purchase $1,001 - $15,000 |
Mar 9, 2026 | Feb 19, 2026 | Filing ↗ |
| Ro KhannaHouse · D · CA |
MIRMirion Technologies, Inc. · Stock |
Purchase $1,001 - $15,000 |
Oct 3, 2025 | Sep 24, 2025 | Filing ↗ |
| Ro KhannaHouse · D · CA |
MIRMirion Technologies, Inc. · Stock |
Purchase $50,001 - $100,000 |
Jul 9, 2025 | Jun 27, 2025 | Filing ↗ |
Whale Activity
Position changes in MIR reported for 2026-06-30 by 9 tracked institutional filers
- Increased5
- New1
- Held0
- Decreased3
- Closed0
- No prior filing0
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 38.3M | $686.0M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 18.2M | $326.0M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 10.6M | $190.3M | increased |
| MILLENNIUM MANAGEMENT LLC | 991.7K | $17.8M | decreased |
| Point72 Asset Management, L.P. | 677.5K | $12.1M | increased |
| D. E. Shaw & Co., Inc. | 400.5K | $7.2M | decreased |
| Bridgewater Associates, LP | 359.1K | $6.4M | increased |
| CITADEL ADVISORS LLC | 32.8K | $588K | decreased |
| TWO SIGMA INVESTMENTS, LP | 19.8K | $354K | new |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by MIR insiders, by quarter · Form 4
Recent Insider Transactions
368 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Schopfer BrianChief Financial Officer | Purchase | +20.0K | $15.60 | $312K | Sep 2, 2026 | Form 4 ↗ |
| Kingsley Lawrence DDirector | Grant / award | +1,095 | $17.46 | $19K | Jun 30, 2026 | Form 4 ↗ |
| Kingsley Lawrence DDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Bockhorst KennethDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| CASCELLA ROBERTDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Etzel Steven W.Director | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| KUO JOHN WDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Markopoulos JodyDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Rege SheilaDirector | Grant / award | +7,383 | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Moore Christopher A.Chief Accounting Officer (PAO) | Sale | −8,400 | $19.64 | $165K | May 7, 2026 | Form 4 ↗ |
| Logan Thomas DChief Executive Officer · Director | Gift | −311.9K | $0.00 | $0 | May 6, 2026 | Form 4 ↗ |
| Ulrich AlisonChief Human Resources Officer | Tax withholding | −2,053 | $18.59 | $38K | Apr 1, 2026 | Form 4 ↗ |
| Schopfer BrianChief Financial Officer | Tax withholding | −7,377 | $18.59 | $137K | Apr 1, 2026 | Form 4 ↗ |
| Moore Christopher A.Chief Accounting Officer (PAO) | Tax withholding | −1,903 | $18.59 | $35K | Apr 1, 2026 | Form 4 ↗ |
| Logan Thomas DChief Executive Officer · Director | Tax withholding | −22.6K | $18.59 | $420K | Apr 1, 2026 | Form 4 ↗ |
| Lee EmmanuelleChief Legal Officer | Tax withholding | −4,680 | $18.59 | $87K | Apr 1, 2026 | Form 4 ↗ |
| Kingsley Lawrence DDirector | Grant / award | +1,104 | $17.32 | $19K | Mar 31, 2026 | Form 4 ↗ |
| Eloy LoicNuclear & Safety President | Grant / award | +15.6K | $0.00 | $0 | Mar 2, 2026 | Form 4 ↗ |
| Schopfer BrianChief Financial Officer | Tax withholding | −28.5K | $21.61 | $616K | Mar 2, 2026 | Form 4 ↗ |
| Schopfer BrianChief Financial Officer | Grant / award | +64.9K | $0.00 | $0 | Mar 2, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding MIR · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 14.7M | $264.3M | 0.24% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 7.4M | $132.2M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 6.3M | $112.7M | 0.14% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 5.3M | $95.6M | 0.05% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 5.2M | $94.4M | 0.05% | May 31, 2026 |
| T. Rowe Price Small-Cap Stock Fund, Inc. | 5.2M | $93.3M | 1.00% | Jun 30, 2026 |
| VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS | 3.4M | $60.5M | 0.09% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.8M | $50.3M | 0.05% | Jun 30, 2026 |
| Janus Henderson Triton Fund Janus Investment Fund | 2.8M | $50.2M | 0.85% | Jun 30, 2026 |
| T. Rowe Price Institutional Small-Cap Stock Fund T. Rowe Price Equity Funds, Inc. | 2.8M | $50.2M | 1.00% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list MIR's shares (CUSIP 60471A101), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming mirion technologies as client
- WHEAT SHROYER GOVERNMENT RELATIONS LLCMIRION TECHNOLOGIES, INC. · 2026 Q2 · ENG$30K
Filing ↗ - WHEAT SHROYER GOVERNMENT RELATIONS LLCMIRION TECHNOLOGIES, INC. · 2026 Q1 · ENG, SMB$20K
Filing ↗ - WHEAT SHROYER GOVERNMENT RELATIONS LLCMIRION TECHNOLOGIES, INC. · 2026 Q1 · ENG—
Filing ↗ - JIM MASSIE & PARTNERS, LLCMIRION TECHNOLOGIES · 2024 Q3 · ENG$30K
Filing ↗ - JIM MASSIE & PARTNERS, LLCMIRION TECHNOLOGIES · 2024 Q2 · ENG$40K
Filing ↗
Government Contracts
Federal awards to mirion technologies · USAspending
$1.4MAwarded · 24 contracts on record
- Department of DefenseGERMANIUM DETECTOR$25K
Aug 29, 2024 · ↗ - Department of Veterans AffairsSOFTWARE MAINTENANCE$6K
Feb 11, 2025 · ↗ - Department of DefenseLYNX II MCA$66K
Apr 7, 2026 · ↗ - Department of Health and Human ServicesPURCHASE OF MAINTENANCE FOR A WHOLE BODY COUNTER SYSTEM. THIS SYSTEM ENTAILS (2) SEPARATE SYSTEMS: CALIBRATION OF ONE (1) WHOLE BODY COUNTI$22K
Sep 25, 2023 · ↗ - Department of Health and Human ServicesTWO (2) HYBRID HIGH PURITY GERMANIUM (HPGE)DETECTOR COOLERS$62K
Sep 11, 2024 · ↗ - Department of Health and Human ServicesDISSASEMBLY, SUPPORT PACKAGING AND RIGGING COORDINATION, AND REASSEMBLE, TEST, AND RESTART ONE FASTSCAN, ONE ACCUSCAN, AND TWO BEGE DETECTOR$50K
Sep 25, 2026 · ↗ - Department of DefenseMAINTENANCE ON 7 ADM 300 KITS$8K
Aug 18, 2025 · ↗ - Department of Defense8511089072!PAPER,FILTER$4K
Dec 19, 2024 · ↗
U.S. Patents
Recent USPTO applications naming Mirion Technologies, Inc.
No USPTO patent applications found for Mirion Technologies, Inc..
Annual Financials
From MIR's 10-K filings · XBRL
No annual XBRL figures on record for MIR. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in MIR's price history.
About Mirion Technologies, Inc.
From SEC EDGAR company records
Industry (SIC 3829)Measuring & Controlling Devices, NEC
SectorTechnology
HeadquartersATLANTA, GA
SEC CIK0001809987 ↗
Former namesGS Acquisition Holdings Corp II