Mesa Laboratories Inc /CO/ SEC filings MLAB
Mesa Laboratories Inc /CO/ has 1,005 filings in SEC EDGAR's recent list, going back to Apr 7, 2011. Its latest annual report, Form 10-K, was filed on Jun 3, 2026 for the period ended Mar 31, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 13, 2026 (exit or restructuring costs, regulation fd disclosure). The company's fiscal year ends on March 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 29, 2026 | Oct 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| 8-K |
Current report
Exit or restructuring costs, Regulation FD disclosure
|
Oct 13, 2026 | Oct 12, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 9, 2026 | — |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Sep 8, 2026 | Sep 8, 2026 |
| 144 | Notice of proposed sale | Aug 27, 2026 | — |
| 144 | Notice of proposed sale | Aug 21, 2026 | — |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 17, 2026 | Aug 13, 2026 |
| 10-Q | Quarterly report | Aug 10, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2026 | Aug 10, 2026 |
| 8-K | Current report | Jul 30, 2026 | Jul 30, 2026 |
| DEF 14A | Proxy statement | Jul 22, 2026 | Sep 8, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 7, 2026 | — |
| 4 | Insider transaction | Jun 23, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 18, 2026 |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 4 | Insider transaction | Jun 17, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 17, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 17, 2026 | Jun 16, 2026 |
| 3 | Initial insider ownership | Jun 16, 2026 | Jun 15, 2026 |
| 144 | Notice of proposed sale | Jun 16, 2026 | — |
| 144 | Notice of proposed sale | Jun 16, 2026 | — |
| 144 | Notice of proposed sale | Jun 16, 2026 | — |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 8-K |
Current report
Officer or director change
|
Jun 15, 2026 | Jun 11, 2026 |
| S-8 | Employee stock plan registration | Jun 3, 2026 | — |
| 10-K | Annual report | Jun 3, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 27, 2026 | May 27, 2026 |
| 4/A | Primary document | May 19, 2026 | Apr 14, 2026 |
| 4 | Insider transaction | Apr 24, 2026 | Apr 14, 2026 |
| 3 | Initial insider ownership | Apr 24, 2026 | Apr 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 15, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 23, 2026 | Mar 20, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 13, 2026 | — |
| 4 | Insider transaction | Mar 10, 2026 | Mar 10, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 10, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 10, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 9, 2026 | Mar 3, 2026 |
| 10-Q | Quarterly report | Feb 3, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 3, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 2, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 31, 2025 | — |
| 4 | Insider transaction | Oct 28, 2025 | Oct 27, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 2, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Aug 25, 2025 | Aug 22, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 8-K |
Current report
New debt
|
Aug 18, 2025 | Aug 12, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 18, 2025 | — |
| DEF 14A | Proxy statement | Jul 11, 2025 | Aug 22, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 21, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 21, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 15, 2025 |
| 144 | Notice of proposed sale | Jun 16, 2025 | — |
| 144 | Notice of proposed sale | Jun 16, 2025 | — |
| 144 | Notice of proposed sale | Jun 16, 2025 | — |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 8-K |
Current report
Auditor change
|
Jun 6, 2025 | Jun 3, 2025 |
| 10-K | Annual report | May 28, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 28, 2025 | May 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 30, 2025 | — |
| 4 | Insider transaction | Mar 24, 2025 | Mar 19, 2025 |
| 144 | Notice of proposed sale | Mar 19, 2025 | — |
| 10-Q | Quarterly report | Feb 4, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2025 | Feb 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 28, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 10, 2025 | — |
| 4 | Insider transaction | Nov 25, 2024 | Nov 19, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Oct 29, 2024 | Oct 27, 2024 |
| 144 | Notice of proposed sale | Oct 29, 2024 | — |
| 144 | Notice of proposed sale | Oct 28, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 15, 2024 | — |
| 4 | Insider transaction | Sep 16, 2024 | Sep 13, 2024 |
| 144 | Notice of proposed sale | Sep 13, 2024 | — |
| 8-K |
Current report
Auditor change
|
Sep 11, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 1, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Aug 30, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2024 | Aug 5, 2024 |
| DEF 14A | Proxy statement | Jul 19, 2024 | Aug 30, 2024 |
| 10-K | Annual report | Jun 28, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| NT 10-K | Form nt 10-k | Jun 14, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Jun 5, 2024 | Jun 5, 2024 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure, Other events
|
Apr 8, 2024 | Apr 5, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 2, 2024 |
| UPLOAD | Letter from the SEC | Apr 2, 2024 | — |
| 8-K |
Current report
Impairment
|
Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Mar 26, 2024 | Jan 8, 2024 |
| CORRESP | Letter to the SEC | Mar 25, 2024 | — |
| UPLOAD | Letter from the SEC | Mar 20, 2024 | — |
| CORRESP | Letter to the SEC | Mar 15, 2024 | — |
| UPLOAD | Letter from the SEC | Mar 6, 2024 | — |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| 3 | Initial insider ownership | Feb 16, 2024 | Jan 8, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 10-Q | Quarterly report | Feb 5, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2024 | Feb 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 22, 2024 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 8, 2024 | Jan 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 5, 2024 | — |
| 4 | Insider transaction | Dec 19, 2023 | Dec 15, 2023 |
| 144 | Notice of proposed sale | Dec 15, 2023 | — |
| 4 | Insider transaction | Nov 14, 2023 | Nov 9, 2023 |
| 10-Q | Quarterly report | Nov 6, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2023 | Nov 6, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 18, 2023 | Oct 16, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 10, 2023 | Oct 5, 2023 |
| 4 | Insider transaction | Sep 19, 2023 | Sep 14, 2023 |
| 4 | Insider transaction | Sep 14, 2023 | Sep 13, 2023 |
| 144 | Notice of proposed sale | Sep 13, 2023 | — |
| 4 | Insider transaction | Sep 6, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Sep 6, 2023 | Sep 6, 2023 |
| 4 | Insider transaction | Sep 6, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 6, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 6, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Sep 1, 2023 |
| 144 | Notice of proposed sale | Sep 1, 2023 | — |
| 8-K |
Current report
Auditor change
|
Aug 30, 2023 | Aug 30, 2023 |
| S-8 | Employee stock plan registration | Aug 30, 2023 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Aug 25, 2023 | Aug 25, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 16, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 16, 2023 | Aug 15, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2023 | Aug 3, 2023 |
| PX14A6G | Filing | Jul 31, 2023 | — |
| DEF 14A | Proxy statement | Jul 14, 2023 | Aug 25, 2023 |
| PRE 14A | Preliminary proxy statement | Jul 3, 2023 | Aug 25, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 21, 2023 |
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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Industrial Instruments For Measurement, Display, and Control (SIC 3823)
- Listed as
- MLAB (Nasdaq)
- Fiscal year ends
- March 31
- Incorporated in
- CO
- Headquarters
- Lakewood, CO
- SEC filer status
- Accelerated filer
- SEC CIK
- 724004
- Former names
- MESA LABORATORIES INC /CO (until Aug 28, 2020)
Other Industrial Instruments For Measurement, Display, and Control companies
- Danaher Corp /DE/ DHR
- Ametek INC/ AME
- Keysight Technologies, Inc. KEYS
- Roper Technologies Inc ROP
- Fortive Corp FTV
- MKS Inc MKSI
- Cognex Corp CGNX
- Ralliant Corp RAL
All 18 Industrial Instruments For Measurement, Display, and Control companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.