Formfactor Inc SEC filings FORM
Formfactor Inc has 1,000 filings in SEC EDGAR's recent list, going back to Sep 13, 2010. Its latest annual report, Form ARS, was filed on Apr 2, 2026 for the period ended Dec 27, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 26, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 26.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 3, 2026 | Sep 26, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2026 | Oct 28, 2026 |
| D | Filing | Oct 20, 2026 | — |
| 4 | Insider transaction | Oct 14, 2026 | Oct 14, 2026 |
| 144 | Notice of proposed sale | Oct 14, 2026 | — |
| 8-K |
Current report
Unregistered share sale, Regulation FD disclosure
|
Oct 13, 2026 | Oct 6, 2026 |
| 4 | Insider transaction | Sep 17, 2026 | Sep 16, 2026 |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 4 | Insider transaction | Sep 4, 2026 | Sep 3, 2026 |
| 144 | Notice of proposed sale | Sep 3, 2026 | — |
| 4 | Insider transaction | Aug 17, 2026 | Aug 14, 2026 |
| 144 | Notice of proposed sale | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 10, 2026 | Aug 6, 2026 |
| 4 | Insider transaction | Aug 10, 2026 | Aug 6, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| S-8 | Employee stock plan registration | Aug 4, 2026 | — |
| 10-Q | Quarterly report | Aug 4, 2026 | Jun 27, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2026 | Jul 29, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 4 | Insider transaction | Jul 16, 2026 | Jul 15, 2026 |
| 144 | Notice of proposed sale | Jul 15, 2026 | — |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 144 | Notice of proposed sale | Jun 15, 2026 | — |
| 4 | Insider transaction | Jun 11, 2026 | Jun 10, 2026 |
| 144 | Notice of proposed sale | Jun 10, 2026 | — |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 144 | Notice of proposed sale | Jun 4, 2026 | — |
| 144 | Notice of proposed sale | Jun 2, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 144 | Notice of proposed sale | May 21, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
May 19, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 144 | Notice of proposed sale | May 14, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 144 | Notice of proposed sale | May 13, 2026 | — |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 10-Q | Quarterly report | May 5, 2026 | Mar 28, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 8-K |
Current report
Results of operations
|
Apr 29, 2026 | Apr 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 15, 2026 | Apr 15, 2026 |
| 144 | Notice of proposed sale | Apr 15, 2026 | — |
| DEFA14A | Additional proxy material | Apr 2, 2026 | — |
| ARS | Annual report to shareholders | Apr 2, 2026 | Dec 27, 2025 |
| DEF 14A | Proxy statement | Apr 2, 2026 | May 15, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| PRE 14A | Preliminary proxy statement | Mar 20, 2026 | May 15, 2026 |
| 4 | Insider transaction | Mar 18, 2026 | Mar 18, 2026 |
| 144 | Notice of proposed sale | Mar 18, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 24, 2026 |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 10-K | Annual report | Feb 20, 2026 | Dec 27, 2025 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 18, 2026 |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 18, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 12, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 10, 2026 |
| 144 | Notice of proposed sale | Feb 11, 2026 | — |
| 4 | Insider transaction | Feb 10, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 9, 2026 |
| 144 | Notice of proposed sale | Feb 10, 2026 | — |
| 144 | Notice of proposed sale | Feb 10, 2026 | — |
| 144 | Notice of proposed sale | Feb 10, 2026 | — |
| 4 | Insider transaction | Feb 9, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 5, 2026 |
| 144 | Notice of proposed sale | Feb 9, 2026 | — |
| 144 | Notice of proposed sale | Feb 9, 2026 | — |
| 144 | Notice of proposed sale | Feb 9, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 4, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Jan 15, 2026 | Jan 15, 2026 |
| 144 | Notice of proposed sale | Jan 15, 2026 | — |
| 8-K |
Current report
Exit or restructuring costs, Impairment
|
Jan 9, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 6, 2026 |
| 144 | Notice of proposed sale | Jan 6, 2026 | — |
| 4 | Insider transaction | Dec 17, 2025 | Dec 17, 2025 |
| 144 | Notice of proposed sale | Dec 17, 2025 | — |
| 4 | Insider transaction | Dec 3, 2025 | Dec 2, 2025 |
| 144 | Notice of proposed sale | Dec 2, 2025 | — |
| 4 | Insider transaction | Dec 2, 2025 | Dec 2, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 19, 2025 |
| 144 | Notice of proposed sale | Nov 19, 2025 | — |
| 4 | Insider transaction | Nov 17, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 7, 2025 | Nov 6, 2025 |
| 4 | Insider transaction | Nov 7, 2025 | Nov 5, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 5, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Nov 3, 2025 |
| 144 | Notice of proposed sale | Nov 4, 2025 | — |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 27, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| 4 | Insider transaction | Sep 12, 2025 | Sep 12, 2025 |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 4 | Insider transaction | Sep 3, 2025 | Sep 2, 2025 |
| 3 | Initial insider ownership | Aug 29, 2025 | Aug 8, 2025 |
| 4 | Insider transaction | Aug 13, 2025 | Aug 13, 2025 |
| 144 | Notice of proposed sale | Aug 13, 2025 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 12, 2025 | Aug 12, 2025 |
| 4 | Insider transaction | Aug 8, 2025 | Aug 6, 2025 |
| 4 | Insider transaction | Aug 8, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| S-8 | Employee stock plan registration | Aug 5, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 28, 2025 |
| 4 | Insider transaction | Aug 4, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 4, 2025 | Aug 1, 2025 |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Bylaw or fiscal year change
|
Jul 30, 2025 | Jul 29, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 144 | Notice of proposed sale | Jul 1, 2025 | — |
| 4 | Insider transaction | Jun 3, 2025 | Jun 2, 2025 |
| SD | Specialized disclosure (conflict minerals) | Jun 3, 2025 | — |
| 144 | Notice of proposed sale | Jun 2, 2025 | — |
| 4 | Insider transaction | May 30, 2025 | May 29, 2025 |
| 144 | Notice of proposed sale | May 29, 2025 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 8, 2025 | May 7, 2025 |
| 4 | Insider transaction | May 8, 2025 | May 7, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | May 1, 2025 |
| 144 | Notice of proposed sale | May 1, 2025 | — |
| 8-K |
Current report
Results of operations
|
Apr 30, 2025 | Apr 30, 2025 |
| ARS | Annual report to shareholders | Apr 3, 2025 | Dec 28, 2024 |
| DEFA14A | Additional proxy material | Apr 2, 2025 | — |
| DEF 14A | Proxy statement | Apr 2, 2025 | May 16, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Apr 1, 2025 |
| 144 | Notice of proposed sale | Apr 1, 2025 | — |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 144 | Notice of proposed sale | Mar 5, 2025 | — |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 10-K | Annual report | Feb 21, 2025 | Dec 28, 2024 |
| 4 | Insider transaction | Feb 10, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 10, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 5, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 3, 2025 | Feb 3, 2025 |
| 144 | Notice of proposed sale | Feb 3, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 31, 2025 | — |
| D | Filing | Jan 17, 2025 | — |
| 4 | Insider transaction | Jan 2, 2025 | Jan 2, 2025 |
| 144 | Notice of proposed sale | Jan 2, 2025 | — |
| 4 | Insider transaction | Dec 2, 2024 | Dec 2, 2024 |
| 144 | Notice of proposed sale | Dec 2, 2024 | — |
| 4 | Insider transaction | Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 10-Q | Quarterly report | Nov 5, 2024 | Sep 28, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 144 | Notice of proposed sale | Nov 1, 2024 | — |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 144 | Notice of proposed sale | Oct 1, 2024 | — |
| 4 | Insider transaction | Sep 4, 2024 | Sep 3, 2024 |
| 144 | Notice of proposed sale | Sep 3, 2024 | — |
| 4 | Insider transaction | Aug 9, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Aug 9, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 7, 2024 | Aug 6, 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
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- FORM (Nasdaq)
- Fiscal year ends
- December 26
- Incorporated in
- DE
- Headquarters
- Livermore, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1039399
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.