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 | — |
| 8-K |
Current report
Unregistered share sale, Regulation FD disclosure
|
Oct 13, 2026 | Oct 6, 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 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
May 19, 2026 | May 15, 2026 |
| 10-Q | Quarterly report | May 5, 2026 | Mar 28, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2026 | Apr 29, 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 |
| PRE 14A | Preliminary proxy statement | Mar 20, 2026 | May 15, 2026 |
| 10-K | Annual report | Feb 20, 2026 | Dec 27, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 18, 2026 | Feb 13, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2026 | Feb 4, 2026 |
| 8-K |
Current report
Exit or restructuring costs, Impairment
|
Jan 9, 2026 | Jan 5, 2026 |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 27, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 12, 2025 | Aug 12, 2025 |
| S-8 | Employee stock plan registration | Aug 5, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 28, 2025 |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Bylaw or fiscal year change
|
Jul 30, 2025 | Jul 29, 2025 |
| SD | Specialized disclosure (conflict minerals) | Jun 3, 2025 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2025 | May 16, 2025 |
| 10-Q | Quarterly report | May 6, 2025 | Mar 29, 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 |
| 10-K | Annual report | Feb 21, 2025 | Dec 28, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2025 | Feb 5, 2025 |
| D | Filing | Jan 17, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2024 | Sep 28, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| 10-Q | Quarterly report | Aug 7, 2024 | Jun 29, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2024 | Jul 31, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2024 | — |
| 8-K |
Current report
Shareholder vote results
|
May 23, 2024 | May 17, 2024 |
| 10-Q | Quarterly report | May 7, 2024 | Mar 30, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| DEFA14A | Additional proxy material | Apr 1, 2024 | — |
| DEF 14A | Proxy statement | Apr 1, 2024 | May 17, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 21, 2024 | Mar 17, 2024 |
| 10-K | Annual report | Feb 23, 2024 | Dec 30, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2024 | Feb 7, 2024 |
| 10-Q | Quarterly report | Nov 7, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Other events
|
Nov 1, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 18, 2023 | Sep 17, 2023 |
| S-8 | Employee stock plan registration | Aug 8, 2023 | — |
| 10-Q | Quarterly report | Aug 8, 2023 | Jul 1, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2023 | — |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2023 | May 19, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Apr 1, 2023 |
| 8-K |
Current report
Results of operations
|
May 3, 2023 | May 3, 2023 |
| DEFA14A | Additional proxy material | Apr 4, 2023 | — |
| DEF 14A | Proxy statement | Apr 4, 2023 | — |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 8, 2023 | Feb 3, 2023 |
| 10-Q | Quarterly report | Nov 1, 2022 | Sep 24, 2022 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Oct 26, 2022 | Oct 25, 2022 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 28, 2022 | Sep 26, 2022 |
| S-8 | Employee stock plan registration | Aug 3, 2022 | — |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 25, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2022 | Jul 27, 2022 |
| 8-K |
Current report
Officer or director change
|
Jul 26, 2022 | Jul 19, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 3, 2022 | May 27, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2022 | — |
| 8-K |
Current report
Other events
|
May 24, 2022 | May 23, 2022 |
| 10-Q | Quarterly report | May 3, 2022 | Mar 26, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2022 | Apr 27, 2022 |
| DEFA14A | Additional proxy material | Apr 13, 2022 | — |
| DEF 14A | Proxy statement | Apr 13, 2022 | May 27, 2022 |
| PRE 14A | Preliminary proxy statement | Mar 30, 2022 | May 27, 2022 |
| 10-K | Annual report | Feb 18, 2022 | Dec 25, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 2, 2022 | Feb 2, 2022 |
| 10-Q | Quarterly report | Nov 2, 2021 | Sep 25, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2021 | Oct 27, 2021 |
| 8-K |
Current report
Exit or restructuring costs
|
Sep 29, 2021 | Sep 25, 2021 |
| 10-Q | Quarterly report | Jul 30, 2021 | Jun 26, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2021 | Jul 28, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Jun 9, 2021 | Jun 7, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2021 | — |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2021 | May 18, 2021 |
| 10-Q | Quarterly report | May 4, 2021 | Mar 27, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2021 | Apr 28, 2021 |
| DEFA14A | Additional proxy material | Mar 31, 2021 | — |
| DEF 14A | Proxy statement | Mar 31, 2021 | May 14, 2021 |
| 10-K | Annual report | Feb 22, 2021 | Dec 26, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 3, 2021 | Feb 3, 2021 |
| 10-Q | Quarterly report | Nov 3, 2020 | Sep 26, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2020 | Oct 28, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 18, 2020 | Aug 18, 2020 |
| 10-Q | Quarterly report | Aug 4, 2020 | Jun 27, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2020 | Jul 30, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 9, 2020 | Jun 28, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 1, 2020 | Jul 1, 2020 |
| S-8 | Employee stock plan registration | Jun 23, 2020 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2020 | May 15, 2020 |
| 10-Q | Quarterly report | May 7, 2020 | Mar 28, 2020 |
| 8-K |
Current report
Results of operations
|
May 6, 2020 | May 6, 2020 |
| DEFA14A | Additional proxy material | Apr 3, 2020 | — |
| DEF 14A | Proxy statement | Apr 3, 2020 | May 15, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 18, 2020 | Mar 17, 2020 |
| 10-K | Annual report | Feb 21, 2020 | Dec 28, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2020 | Feb 5, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 12, 2019 | Dec 11, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Dec 11, 2019 | Dec 10, 2019 |
| 10-Q | Quarterly report | Nov 5, 2019 | Sep 28, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2019 | Oct 30, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 23, 2019 | Sep 17, 2019 |
| 10-Q | Quarterly report | Aug 6, 2019 | Jun 29, 2019 |
| S-8 | Employee stock plan registration | Aug 2, 2019 | — |
| 8-K/A |
Amended current report
Results of operations
|
Aug 1, 2019 | Jul 31, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2019 | Jul 31, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 25, 2019 | Jul 22, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2019 | — |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2019 | May 17, 2019 |
| 10-Q | Quarterly report | May 7, 2019 | Mar 30, 2019 |
| 8-K |
Current report
Results of operations
|
May 1, 2019 | May 1, 2019 |
| DEF 14A | Proxy statement | Apr 3, 2019 | May 17, 2019 |
| 10-K | Annual report | Feb 26, 2019 | Dec 29, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 6, 2019 | Feb 6, 2019 |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 29, 2018 |
| 8-K | Current report | Oct 31, 2018 | Oct 31, 2018 |
| 8-K |
Current report
Material agreement
|
Oct 2, 2018 | Sep 28, 2018 |
| 10-Q | Quarterly report | Aug 7, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2018 | Aug 1, 2018 |
| S-8 | Employee stock plan registration | Jul 30, 2018 | — |
| 8-K |
Current report
Material agreement
|
Jun 15, 2018 | Jun 13, 2018 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2018 | — |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2018 | May 18, 2018 |
| 10-Q | Quarterly report | May 8, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
May 2, 2018 | May 2, 2018 |
| DEF 14A | Proxy statement | Apr 3, 2018 | May 18, 2018 |
| 10-K | Annual report | Feb 27, 2018 | Dec 30, 2017 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2018 | Feb 21, 2018 |
| 8-K |
Current report
Officer or director change
|
Feb 8, 2018 | Feb 7, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2018 | Feb 7, 2018 |
| S-8 | Employee stock plan registration | Jan 16, 2018 | — |
| 10-Q | Quarterly report | Nov 7, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2017 | Oct 31, 2017 |
| 8-K | Current report | Sep 18, 2017 | Sep 13, 2017 |
| 10-Q | Quarterly report | Aug 10, 2017 | Jul 1, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2017 | Aug 2, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 28, 2017 | Jun 28, 2017 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2017 | — |
| 8-K |
Current report
Shareholder vote results
|
May 31, 2017 | May 26, 2017 |
| 10-Q | Quarterly report | May 10, 2017 | Apr 1, 2017 |
| 8-K |
Current report
Results of operations
|
May 3, 2017 | May 3, 2017 |
| DEF 14A | Proxy statement | Apr 10, 2017 | May 26, 2017 |
| 10-K | Annual report | Mar 15, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 8, 2017 | Feb 8, 2017 |
| 8-K |
Current report
Material agreement
|
Dec 23, 2016 | Dec 19, 2016 |
| UPLOAD | Letter from the SEC | Dec 9, 2016 | — |
| CORRESP | Letter to the SEC | Dec 8, 2016 | — |
| UPLOAD | Letter from the SEC | Nov 23, 2016 | — |
| 10-Q | Quarterly report | Nov 3, 2016 | Sep 24, 2016 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2016 | Oct 27, 2016 |
| 10-Q | Quarterly report | Aug 4, 2016 | Jun 25, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2016 | Aug 2, 2016 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jul 22, 2016 | Jul 20, 2016 |
| S-8 | Employee stock plan registration | Jul 19, 2016 | — |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Jul 15, 2016 | Jun 22, 2016 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Officer or director change, Other events
|
Jun 28, 2016 | Jun 22, 2016 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2016 | — |
| 425 | Filing | May 25, 2016 | — |
| 8-K |
Current report
Shareholder vote results
|
May 23, 2016 | May 20, 2016 |
| 424B3 | Prospectus | May 20, 2016 | — |
| EFFECT | Filing | May 19, 2016 | — |
| S-4/A | Amendment no. 2 to form s-4 | May 19, 2016 | — |
| CORRESP | Letter to the SEC | May 17, 2016 | — |
| CORRESP | Letter to the SEC | May 17, 2016 | — |
| CORRESP | Letter to the SEC | May 10, 2016 | — |
| S-4/A | Amendment no. 1 to form s-4 | May 10, 2016 | — |
| 10-Q | Quarterly report | Apr 27, 2016 | Mar 26, 2016 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Apr 27, 2016 | Mar 29, 2016 |
| UPLOAD | Letter from the SEC | Apr 26, 2016 | — |
| DEF 14A | Proxy statement | Apr 6, 2016 | May 20, 2016 |
| S-4 | Registration for a merger or exchange | Apr 1, 2016 | — |
| 8-K |
Current report
Other events
|
Mar 22, 2016 | Mar 21, 2016 |
| 425 | Form 8-k | Mar 22, 2016 | — |
| 10-K | Annual report | Mar 4, 2016 | Dec 26, 2015 |
| 8-K |
Current report
Material agreement
|
Feb 9, 2016 | Feb 3, 2016 |
| 425 | Form 8-k | Feb 9, 2016 | — |
| 425 | Filing | Feb 9, 2016 | — |
| 425 | Filing | Feb 5, 2016 | — |
| 425 | Filing | Feb 4, 2016 | — |
| 425 | Filing | Feb 4, 2016 | — |
| 425 | Filing | Feb 4, 2016 | — |
| 425 | Filing | Feb 4, 2016 | — |
| 8-K |
Current report
Results of operations, Other events
|
Feb 4, 2016 | Feb 4, 2016 |
| 425 | Form 8-k | Feb 4, 2016 | — |
| 10-Q | Quarterly report | Oct 28, 2015 | Sep 26, 2015 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2015 | Oct 28, 2015 |
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.