Mirion Technologies, Inc. SEC filings MIR
Mirion Technologies, Inc. has 534 filings in SEC EDGAR's recent list, going back to Apr 20, 2020. Its latest annual report, Form ARS, was filed on Apr 1, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 27, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 28, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2026 | Oct 27, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 2, 2026 |
| 8-K |
Current report
Other events
|
Aug 31, 2026 | Aug 31, 2026 |
| 10-Q | Quarterly report | Jul 29, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2026 | Jul 28, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 2, 2026 | Jul 2, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 30, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 144 | Notice of proposed sale | May 7, 2026 | — |
| 4 | Insider transaction | May 7, 2026 | May 6, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 10-Q | Quarterly report | Apr 29, 2026 | Mar 31, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 8-K |
Current report
Results of operations
|
Apr 28, 2026 | Apr 28, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 13, 2026 | Apr 9, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| DEF 14A | Proxy statement | Apr 1, 2026 | May 13, 2026 |
| ARS | Annual report to shareholders | Apr 1, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 1, 2026 | May 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 10-K | Annual report | Feb 19, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 10, 2026 | Feb 10, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 27, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 27, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 27, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 27, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 8, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 11, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 10, 2025 |
| 144 | Notice of proposed sale | Dec 10, 2025 | — |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 8, 2025 | Dec 8, 2025 |
| 8-K |
Current report
Other events
|
Dec 1, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 24, 2025 |
| 4 | Insider transaction | Nov 21, 2025 | Nov 21, 2025 |
| 144 | Notice of proposed sale | Nov 21, 2025 | — |
| 4 | Insider transaction | Nov 12, 2025 | Nov 11, 2025 |
| 4 | Insider transaction | Nov 12, 2025 | Nov 10, 2025 |
| 144 | Notice of proposed sale | Nov 10, 2025 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Other events
|
Nov 7, 2025 | Nov 6, 2025 |
| 144 | Notice of proposed sale | Nov 6, 2025 | — |
| 4 | Insider transaction | Nov 3, 2025 | Oct 30, 2025 |
| 4 | Insider transaction | Nov 3, 2025 | Oct 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 31, 2025 | — |
| 10-Q | Quarterly report | Oct 29, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2025 | Oct 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 2, 2025 | — |
| 4 | Insider transaction | Oct 1, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Sep 30, 2025 | Sep 25, 2025 |
| 424B5 | Prospectus supplement | Sep 29, 2025 | — |
| FWP | Free writing prospectus | Sep 26, 2025 | — |
| FWP | Free writing prospectus | Sep 24, 2025 | — |
| 424B5 | Prospectus supplement | Sep 24, 2025 | — |
| 8-K |
Current report
Other events
|
Sep 24, 2025 | Sep 24, 2025 |
| 4 | Insider transaction | Aug 13, 2025 | Aug 11, 2025 |
| 144 | Notice of proposed sale | Aug 11, 2025 | — |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| 144 | Notice of proposed sale | Aug 5, 2025 | — |
| 10-Q | Quarterly report | Aug 1, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 4 | Insider transaction | Jul 1, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 1, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 144 | Notice of proposed sale | Jun 25, 2025 | — |
| 8-K |
Current report
Material agreement, New debt
|
Jun 5, 2025 | Jun 5, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| 8-K |
Current report
Other events
|
May 29, 2025 | May 29, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
May 23, 2025 | May 20, 2025 |
| 144 | Notice of proposed sale | May 21, 2025 | — |
| 144 | Notice of proposed sale | May 21, 2025 | — |
| 144 | Notice of proposed sale | May 21, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 20, 2025 | May 20, 2025 |
| 4/A | Form 4/a | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 16, 2025 | May 15, 2025 |
| 10-Q | Quarterly report | Apr 30, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| DEFA14A | Additional proxy material | Apr 1, 2025 | — |
| ARS | Annual report to shareholders | Apr 1, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 1, 2025 | May 15, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 21, 2025 | Mar 21, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 10-K | Annual report | Feb 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2025 | Feb 11, 2025 |
| 144 | Notice of proposed sale | Jan 23, 2025 | — |
| 4 | Insider transaction | Jan 2, 2025 | Sep 30, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Sep 30, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 27, 2024 |
| 144 | Notice of proposed sale | Dec 23, 2024 | — |
| 4 | Insider transaction | Dec 19, 2024 | Dec 17, 2024 |
| 4 | Insider transaction | Dec 19, 2024 | Dec 17, 2024 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 18, 2024 | — |
| 4 | Insider transaction | Dec 17, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 13, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 3, 2024 | Dec 3, 2024 |
| 144/A | Filing | Nov 26, 2024 | — |
| 144 | Notice of proposed sale | Nov 25, 2024 | — |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 13, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 6, 2024 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Oct 31, 2024 |
| 10-Q | Quarterly report | Oct 30, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2024 | Oct 29, 2024 |
| 4 | Insider transaction | Oct 28, 2024 | Oct 24, 2024 |
| 144 | Notice of proposed sale | Oct 24, 2024 | — |
| 4 | Insider transaction | Sep 26, 2024 | Sep 24, 2024 |
| 4 | Insider transaction | Sep 26, 2024 | Sep 24, 2024 |
| 144 | Notice of proposed sale | Sep 25, 2024 | — |
| 144 | Notice of proposed sale | Sep 24, 2024 | — |
| 4 | Insider transaction | Aug 30, 2024 | Aug 28, 2024 |
| 4 | Insider transaction | Aug 27, 2024 | Aug 23, 2024 |
| 144 | Notice of proposed sale | Aug 23, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 12, 2024 | — |
| 4 | Insider transaction | Aug 7, 2024 | Aug 6, 2024 |
| 144 | Notice of proposed sale | Aug 6, 2024 | — |
| 10-Q | Quarterly report | Aug 2, 2024 | Jun 30, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Aug 1, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 1, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Jul 26, 2024 | Jul 24, 2024 |
| 4 | Insider transaction | Jul 26, 2024 | Jul 24, 2024 |
| 144 | Notice of proposed sale | Jul 24, 2024 | — |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 26, 2024 |
| 144 | Notice of proposed sale | Jun 25, 2024 | — |
| 4 | Insider transaction | Jun 25, 2024 | Jun 24, 2024 |
| 144 | Notice of proposed sale | Jun 24, 2024 | — |
| 144 | Notice of proposed sale | Jun 13, 2024 | — |
| 4 | Insider transaction | Jun 13, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 6, 2024 | Jun 4, 2024 |
| 144 | Notice of proposed sale | Jun 6, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 6, 2024 | — |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 4, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Measuring & Controlling Devices, NEC (SIC 3829)
- Listed as
- MIR (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Atlanta, GA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1809987
- Former names
- GS Acquisition Holdings Corp II (until Oct 19, 2021)
Other Measuring & Controlling Devices, NEC companies
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.