Nautilus Biotechnology, Inc. SEC filings NAUT
Nautilus Biotechnology, Inc. has 328 filings in SEC EDGAR's recent list, going back to Apr 17, 2020. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 27, 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 |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 3, 2026 | — |
| 10-Q | Quarterly report | Oct 27, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2026 | Oct 27, 2026 |
| EFFECT | Filing | Sep 18, 2026 | — |
| 424B5 | Prospectus supplement | Sep 18, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 11, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended
|
Sep 11, 2026 | Sep 11, 2026 |
| S-3 | Shelf registration | Sep 11, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 28, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 14, 2026 | — |
| 10-Q | Quarterly report | Jul 28, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2026 | Jul 28, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 30, 2026 | — |
| 4 | Insider transaction | Jun 22, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 18, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2026 | Jun 17, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 4, 2026 | — |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| ARS | Annual report to shareholders | Apr 28, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 28, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Jun 17, 2026 |
| 10-Q | Quarterly report | Apr 28, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2026 | Apr 28, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 4, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 4, 2026 | — |
| 4 | Insider transaction | Mar 4, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| S-8 | Employee stock plan registration | Feb 26, 2026 | — |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Other events
|
Nov 4, 2025 | Nov 3, 2025 |
| 10-Q | Quarterly report | Oct 28, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2025 | Oct 28, 2025 |
| 4 | Insider transaction | Sep 9, 2025 | Sep 5, 2025 |
| 4 | Insider transaction | Sep 5, 2025 | Sep 4, 2025 |
| 10-Q | Quarterly report | Jul 31, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 24, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 23, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 29, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 8-K |
Current report
Listing notice
|
May 2, 2025 | May 1, 2025 |
| ARS | Annual report to shareholders | Apr 29, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 29, 2025 | — |
| DEF 14A | Proxy statement | Apr 29, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | Apr 29, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 19, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 5, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 5, 2025 | — |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| S-8 | Employee stock plan registration | Feb 27, 2025 | — |
| 10-K | Annual report | Feb 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 27, 2025 | Feb 24, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 31, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2025 | Jan 27, 2025 |
| 144 | Notice of proposed sale | Dec 17, 2024 | — |
| 144 | Notice of proposed sale | Dec 9, 2024 | — |
| 144 | Notice of proposed sale | Dec 3, 2024 | — |
| 144 | Notice of proposed sale | Nov 26, 2024 | — |
| 144 | Notice of proposed sale | Nov 21, 2024 | — |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 14, 2024 | — |
| 144 | Notice of proposed sale | Nov 12, 2024 | — |
| 144 | Notice of proposed sale | Nov 8, 2024 | — |
| 144 | Notice of proposed sale | Nov 7, 2024 | — |
| 10-Q | Quarterly report | Oct 29, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2024 | Oct 29, 2024 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| 144 | Notice of proposed sale | Sep 23, 2024 | — |
| 4 | Insider transaction | Sep 18, 2024 | Sep 17, 2024 |
| 4 | Insider transaction | Sep 17, 2024 | Sep 16, 2024 |
| 3 | Initial insider ownership | Sep 17, 2024 | Sep 16, 2024 |
| 144 | Notice of proposed sale | Sep 17, 2024 | — |
| 10-Q | Quarterly report | Jul 30, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2024 | Jul 30, 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 |
| 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 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 14, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 13, 2024 | Jun 13, 2024 |
| 10-Q | Quarterly report | Apr 30, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2024 | Apr 30, 2024 |
| ARS | Annual report to shareholders | Apr 26, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 26, 2024 | — |
| DEF 14A | Proxy statement | Apr 26, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| EFFECT | Filing | Mar 6, 2024 | — |
| 424B5 | Prospectus supplement | Mar 6, 2024 | — |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| CORRESP | Letter to the SEC | Mar 4, 2024 | — |
| UPLOAD | Letter from the SEC | Mar 4, 2024 | — |
| 8-K |
Current report
Material agreement
|
Feb 28, 2024 | Feb 28, 2024 |
| S-3 | Shelf registration | Feb 28, 2024 | — |
| S-8 | Employee stock plan registration | Feb 28, 2024 | — |
| 10-K | Annual report | Feb 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2024 | Feb 28, 2024 |
| 8-K |
Current report
Other events
|
Dec 14, 2023 | Dec 14, 2023 |
| 424B3 | Prospectus | Nov 22, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 17, 2023 | — |
| 10-Q | Quarterly report | Oct 31, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2023 | Oct 31, 2023 |
| 10-Q | Quarterly report | Aug 2, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| 4 | Insider transaction | Jun 20, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 20, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 15, 2023 | Jun 14, 2023 |
| 10-Q | Quarterly report | May 2, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 2, 2023 | May 2, 2023 |
| ARS | Annual report to shareholders | Apr 27, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 27, 2023 | — |
| DEF 14A | Proxy statement | Apr 27, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 1, 2023 | — |
| S-8 | Employee stock plan registration | Feb 23, 2023 | — |
| 10-K | Annual report | Feb 23, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2023 | Feb 23, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2023 | — |
| 10-Q | Quarterly report | Nov 1, 2022 | Sep 30, 2022 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 1, 2022 | Mar 30, 2022 |
| 8-K |
Current report
Results of operations, Bylaw or fiscal year change
|
Nov 1, 2022 | Oct 27, 2022 |
| 4 | Insider transaction | Sep 28, 2022 | Sep 26, 2022 |
| 4 | Insider transaction | Sep 26, 2022 | Sep 23, 2022 |
| 4 | Insider transaction | Sep 19, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Aug 22, 2022 | Aug 19, 2022 |
| 4 | Insider transaction | Aug 16, 2022 | Aug 12, 2022 |
| 424B3 | Prospectus | Aug 9, 2022 | — |
| EFFECT | Filing | Aug 8, 2022 | — |
| 4 | Insider transaction | Aug 8, 2022 | Aug 5, 2022 |
| 4 | Insider transaction | Aug 3, 2022 | Aug 3, 2022 |
| POS AM | Filing | Aug 2, 2022 | — |
| 424B3 | Prospectus | Aug 2, 2022 | — |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2022 | Aug 2, 2022 |
| 3 | Initial insider ownership | Jul 1, 2022 | Jul 1, 2022 |
| 4 | Insider transaction | Jun 28, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 15, 2022 |
| 424B3 | Prospectus | Jun 16, 2022 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | May 13, 2022 | May 12, 2022 |
| 4 | Insider transaction | May 10, 2022 | May 9, 2022 |
| 4 | Insider transaction | May 5, 2022 | May 4, 2022 |
| 4 | Insider transaction | May 5, 2022 | May 4, 2022 |
| 424B3 | Prospectus | May 3, 2022 | — |
| 10-Q | Quarterly report | May 3, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 3, 2022 | May 3, 2022 |
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
- Laboratory Analytical Instruments (SIC 3826)
- Listed as
- NAUT (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Seattle, WA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1808805
- Former names
- ARYA Sciences Acquisition Corp III (until Jun 8, 2021)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.