Research Frontiers Inc SEC filings REFR
Research Frontiers Inc has 904 filings in SEC EDGAR's recent list, going back to Aug 14, 1995. Its latest annual report, Form 10-K, was filed on Mar 5, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Jun 12, 2026 (shareholder vote results). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2026 | Jun 11, 2026 |
| 8-K |
Current report
Listing notice
|
Jun 5, 2026 | Jun 2, 2026 |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| DEF 14A | Proxy statement | Apr 30, 2026 | Apr 30, 2026 |
| 10-K/A | Amended annual report | Mar 19, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 5, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement
|
Feb 18, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 17, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Sep 15, 2025 | Sep 15, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 13, 2025 | Jun 12, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2025 | Apr 30, 2025 |
| 10-K/A | Amended annual report | Apr 16, 2025 | Dec 31, 2023 |
| 10-K | Annual report | Mar 6, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Aug 1, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 7, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| DEF 14A | Proxy statement | Apr 26, 2024 | Apr 26, 2024 |
| 10-K | Annual report | Mar 7, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 24, 2024 | — |
| 4 | Insider transaction | Jan 5, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 5, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 5, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 5, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 5, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Dec 12, 2023 | Dec 11, 2023 |
| 10-Q | Quarterly report | Nov 2, 2023 | Sep 30, 2023 |
| SC 13G | Ownership over 5% (passive) | Oct 19, 2023 | — |
| 4 | Insider transaction | Oct 3, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Sep 14, 2023 | Sep 13, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 3 | Initial insider ownership | Jul 10, 2023 | Jun 4, 2023 |
| 4 | Insider transaction | Jun 20, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2023 | Jun 8, 2023 |
| 8-K |
Current report
Listing notice, Officer or director change
|
Jun 5, 2023 | Jun 4, 2023 |
| 10-Q | Quarterly report | May 4, 2023 | Mar 31, 2023 |
| DEF 14A | Proxy statement | Apr 28, 2023 | Apr 28, 2023 |
| 10-K | Annual report | Mar 9, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Jan 26, 2023 | Jan 25, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 31, 2022 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Sep 20, 2022 | Sep 16, 2022 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 13, 2022 | Jun 9, 2022 |
| 10-Q | Quarterly report | May 5, 2022 | Mar 31, 2022 |
| DEF 14A | Proxy statement | Apr 29, 2022 | Apr 29, 2022 |
| 10-K | Annual report | Mar 9, 2022 | Dec 31, 2021 |
| 10-Q/A | Amended quarterly report | Feb 24, 2022 | Sep 30, 2021 |
| 10-Q/A | Amended quarterly report | Feb 24, 2022 | Jun 30, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Dec 31, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Dec 31, 2021 |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 5, 2021 | Jun 30, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 12, 2021 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 10, 2021 | Jun 10, 2021 |
| 10-Q | Quarterly report | May 10, 2021 | Mar 31, 2021 |
| DEF 14A | Proxy statement | Apr 29, 2021 | Apr 29, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 15, 2021 | — |
| 10-K | Annual report | Mar 11, 2021 | Dec 31, 2020 |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2021 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 13, 2021 | Jan 12, 2021 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 31, 2020 |
| 3/A | Filing | Jan 4, 2021 | Aug 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Dec 4, 2020 | Dec 4, 2020 |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 27, 2020 | — |
| 4 | Insider transaction | Aug 27, 2020 | Aug 25, 2020 |
| 3 | Initial insider ownership | Aug 18, 2020 | Aug 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Aug 17, 2020 | Aug 17, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 7, 2020 |
| 10-Q | Quarterly report | Aug 6, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 4, 2020 | Aug 3, 2020 |
| 4 | Insider transaction | Jul 30, 2020 | Jul 28, 2020 |
| 4 | Insider transaction | Jul 21, 2020 | Jul 17, 2020 |
| 4 | Insider transaction | Jul 17, 2020 | Jul 15, 2020 |
| 4 | Insider transaction | Jul 15, 2020 | Jul 13, 2020 |
| 4 | Insider transaction | Jul 2, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 1, 2020 | Jun 29, 2020 |
| 4 | Insider transaction | Jun 29, 2020 | Jun 25, 2020 |
| 4 | Insider transaction | Jun 29, 2020 | Jun 25, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 11, 2020 | Jun 11, 2020 |
| 4 | Insider transaction | Jun 2, 2020 | May 29, 2020 |
| 10-Q | Quarterly report | May 7, 2020 | Mar 31, 2020 |
| DEF 14A | Proxy statement | Apr 29, 2020 | Apr 29, 2020 |
| 4/A | Filing | Apr 29, 2020 | Dec 31, 2019 |
| 4/A | Filing | Apr 29, 2020 | Dec 31, 2019 |
| 4/A | Filing | Apr 29, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 24, 2020 | Apr 23, 2020 |
| 10-K | Annual report | Mar 12, 2020 | Dec 31, 2019 |
| S-8 | Employee stock plan registration | Mar 9, 2020 | — |
| 4 | Insider transaction | Feb 24, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 24, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Jan 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 5, 2019 | Dec 5, 2019 |
| 10-Q | Quarterly report | Nov 7, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Auditor change
|
Oct 17, 2019 | Oct 15, 2019 |
| 8-K |
Current report
Officer or director change
|
Sep 26, 2019 | Sep 26, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 12, 2019 | Aug 12, 2019 |
| 10-Q | Quarterly report | Aug 8, 2019 | Jun 30, 2019 |
| SC 13D | Ownership over 5% (active) | Jul 8, 2019 | — |
| 4/A | Filing | Jun 27, 2019 | Jun 25, 2019 |
| 4 | Insider transaction | Jun 27, 2019 | Jun 25, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 21, 2019 | Jun 20, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 4 | Insider transaction | Jun 17, 2019 | Jun 13, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Jun 13, 2019 | Jun 13, 2019 |
| 8-K |
Current report
Material agreement
|
Jun 3, 2019 | May 31, 2019 |
| 424B2 | Prospectus | Jun 3, 2019 | — |
| 10-Q | Quarterly report | May 14, 2019 | Mar 31, 2019 |
| DEF 14A | Proxy statement | Apr 29, 2019 | Apr 29, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 1, 2019 | Apr 1, 2019 |
| 10-K | Annual report | Mar 14, 2019 | Dec 31, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2019 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 4, 2019 | Feb 1, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 11, 2019 | Jan 10, 2019 |
| 4 | Insider transaction | Nov 21, 2018 | Nov 20, 2018 |
| 4 | Insider transaction | Nov 20, 2018 | Nov 19, 2018 |
| 4 | Insider transaction | Nov 19, 2018 | Nov 19, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 15, 2018 | Nov 15, 2018 |
| 10-Q | Quarterly report | Nov 8, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 25, 2018 | Oct 24, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 23, 2018 | Oct 22, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 19, 2018 | Oct 18, 2018 |
| 4 | Insider transaction | Oct 16, 2018 | Oct 15, 2018 |
| 4 | Insider transaction | Oct 12, 2018 | Oct 11, 2018 |
| 4 | Insider transaction | Oct 12, 2018 | Oct 10, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 9, 2018 | Oct 9, 2018 |
| 4 | Insider transaction | Sep 21, 2018 | Sep 11, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 21, 2018 | Sep 20, 2018 |
| 8-K |
Current report
Material agreement
|
Sep 7, 2018 | Sep 7, 2018 |
| 424B2 | Prospectus | Sep 7, 2018 | — |
| 10-Q | Quarterly report | Aug 13, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 24, 2018 | Jul 20, 2018 |
| 4 | Insider transaction | Jul 23, 2018 | Jul 19, 2018 |
| 4 | Insider transaction | Jul 17, 2018 | Jul 16, 2018 |
| 4 | Insider transaction | Jul 13, 2018 | Jul 11, 2018 |
| 4 | Insider transaction | Jun 26, 2018 | Jun 25, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Jun 14, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 7, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 6, 2018 | Jun 5, 2018 |
| 4 | Insider transaction | Jun 5, 2018 | Jun 4, 2018 |
| 4 | Insider transaction | Jun 4, 2018 | May 31, 2018 |
| 4 | Insider transaction | May 31, 2018 | May 30, 2018 |
| 4 | Insider transaction | May 16, 2018 | May 16, 2018 |
| 4 | Insider transaction | May 16, 2018 | May 16, 2018 |
| 10-Q | Quarterly report | May 14, 2018 | Mar 31, 2018 |
| 4 | Insider transaction | May 4, 2018 | May 3, 2018 |
| 4 | Insider transaction | May 4, 2018 | May 3, 2018 |
| 4 | Insider transaction | May 4, 2018 | May 3, 2018 |
| EFFECT | Filing | Apr 23, 2018 | — |
| 424B2 | Prospectus | Apr 23, 2018 | — |
| 8-K |
Current report
Material agreement
|
Apr 23, 2018 | Apr 23, 2018 |
| CORRESP | Letter to the SEC | Apr 19, 2018 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 18, 2018 | Apr 17, 2018 |
| DEFA14A | Additional proxy material | Apr 18, 2018 | — |
| DEF 14A | Proxy statement | Apr 18, 2018 | Apr 18, 2018 |
| UPLOAD | Letter from the SEC | Mar 22, 2018 | — |
| 8-K |
Current report
Listing notice
|
Mar 20, 2018 | Mar 14, 2018 |
| S-3 | Shelf registration | Mar 13, 2018 | — |
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
- Patent Owners & Lessors (SIC 6794)
- Listed as
- REFR (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Woodbury, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 793524
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.