aTYR PHARMA INC SEC filings ATYR
aTYR PHARMA INC has 755 filings in SEC EDGAR's recent list, going back to Sep 23, 2005. Its latest annual report, Form ARS, was filed on Mar 26, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 6, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 6, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Other events
|
Nov 6, 2026 | Nov 6, 2026 |
| 424B5 | Prospectus supplement | Nov 6, 2026 | — |
| 10-Q | Quarterly report | Nov 6, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Oct 27, 2026 | Oct 27, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Oct 16, 2026 | Oct 16, 2026 |
| 8-K |
Current report
Other events
|
Sep 24, 2026 | Sep 24, 2026 |
| DEF 14A | Proxy statement | Sep 11, 2026 | Oct 16, 2026 |
| PRE 14A | Preliminary proxy statement | Aug 31, 2026 | Oct 16, 2026 |
| S-8 | Employee stock plan registration | Aug 7, 2026 | — |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2026 | Aug 7, 2026 |
| 8-K |
Current report
Agreement ended
|
Jul 31, 2026 | Jul 30, 2026 |
| 8-K |
Current report
Listing notice
|
Jun 8, 2026 | Jun 3, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 1, 2026 | Jun 1, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 15, 2026 | May 15, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
May 11, 2026 | May 11, 2026 |
| ARS | Annual report to shareholders | Mar 26, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 26, 2026 | — |
| DEF 14A | Proxy statement | Mar 26, 2026 | Mar 26, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 12, 2026 | Mar 12, 2026 |
| 10-K | Annual report | Mar 5, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 5, 2026 | Mar 5, 2026 |
| 8-K |
Current report
Listing notice
|
Dec 5, 2025 | Dec 4, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Other events
|
Sep 15, 2025 | Sep 15, 2025 |
| EFFECT | Filing | Aug 18, 2025 | — |
| CORRESP | Letter to the SEC | Aug 13, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 13, 2025 | — |
| 8-K/A |
Amended current report
Results of operations
|
Aug 8, 2025 | Aug 7, 2025 |
| S-8 | Employee stock plan registration | Aug 7, 2025 | — |
| S-3 | Shelf registration | Aug 7, 2025 | — |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Impairment
|
Aug 7, 2025 | Aug 7, 2025 |
| 10-Q | Quarterly report | May 7, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 6, 2025 | May 1, 2025 |
| ARS | Annual report to shareholders | Mar 19, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 19, 2025 | — |
| DEF 14A | Proxy statement | Mar 19, 2025 | Mar 19, 2025 |
| 10-K | Annual report | Mar 13, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2025 | Mar 13, 2025 |
| 424B5 | Prospectus supplement | Dec 23, 2024 | — |
| 8-K |
Current report
Material agreement
|
Dec 23, 2024 | Dec 23, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2024 | Dec 10, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| S-8 | Employee stock plan registration | Aug 13, 2024 | — |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2024 | Aug 13, 2024 |
| 8-K |
Current report
Other events
|
Jul 22, 2024 | Jul 22, 2024 |
| UPLOAD | Letter from the SEC | Jun 25, 2024 | — |
| CORRESP | Letter to the SEC | Jun 18, 2024 | — |
| UPLOAD | Letter from the SEC | Jun 6, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
May 29, 2024 | May 22, 2024 |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 2, 2024 | May 2, 2024 |
| ARS | Annual report to shareholders | Apr 5, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 5, 2024 | — |
| DEF 14A | Proxy statement | Apr 5, 2024 | May 22, 2024 |
| 10-K | Annual report | Mar 14, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2024 | Mar 14, 2024 |
| EFFECT | Filing | Nov 20, 2023 | — |
| CORRESP | Letter to the SEC | Nov 16, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 15, 2023 | — |
| S-3 | Shelf registration | Nov 9, 2023 | — |
| 424B5 | Prospectus supplement | Nov 9, 2023 | — |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 26, 2023 | Sep 26, 2023 |
| 8-K |
Current report
Other events
|
Sep 11, 2023 | Sep 10, 2023 |
| S-8 | Employee stock plan registration | Aug 10, 2023 | — |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
May 19, 2023 | May 17, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 9, 2023 |
| ARS | Annual report to shareholders | Apr 18, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Mar 29, 2023 | — |
| DEFA14A | Additional proxy material | Mar 29, 2023 | — |
| DEF 14A | Proxy statement | Mar 29, 2023 | May 17, 2023 |
| 10-K | Annual report | Mar 14, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 10, 2023 | Mar 10, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2023 | Mar 9, 2023 |
| PRE 14A | Preliminary proxy statement | Mar 8, 2023 | May 17, 2023 |
| 8-K |
Current report
Other events
|
Feb 9, 2023 | Feb 8, 2023 |
| 424B5 | Prospectus supplement | Feb 9, 2023 | — |
| 424B5 | Prospectus supplement | Feb 8, 2023 | — |
| 8-K |
Current report
Other events
|
Feb 6, 2023 | Feb 6, 2023 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2022 | Nov 10, 2022 |
| 10-Q | Quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 15, 2022 | Aug 15, 2022 |
| 8-K |
Current report
Other events
|
Aug 11, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Other events
|
May 17, 2022 | May 16, 2022 |
| 8-K |
Current report
Material agreement
|
May 16, 2022 | May 12, 2022 |
| S-8 | Employee stock plan registration | May 11, 2022 | — |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 9, 2022 | May 9, 2022 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
Apr 29, 2022 | Apr 26, 2022 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Apr 22, 2022 | Apr 22, 2022 |
| 424B5 | Prospectus supplement | Apr 22, 2022 | — |
| 8-K/A |
Amended current report
Other events
|
Apr 14, 2022 | Apr 12, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 13, 2022 | Apr 12, 2022 |
| EFFECT | Filing | Apr 8, 2022 | — |
| CORRESP | Letter to the SEC | Apr 5, 2022 | — |
| DEFA14A | Additional proxy material | Mar 22, 2022 | — |
| DEF 14A | Proxy statement | Mar 22, 2022 | Apr 26, 2022 |
| UPLOAD | Letter from the SEC | Mar 17, 2022 | — |
| S-3 | Shelf registration | Mar 15, 2022 | — |
| 10-K | Annual report | Mar 15, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2022 | Mar 14, 2022 |
| PRE 14A | Preliminary proxy statement | Mar 4, 2022 | Apr 26, 2022 |
| 10-Q | Quarterly report | Nov 12, 2021 | Sep 30, 2021 |
| 8-K | Current report | Nov 10, 2021 | Nov 10, 2021 |
| 8-K |
Current report
Other events
|
Sep 16, 2021 | Sep 15, 2021 |
| 424B5 | Prospectus supplement | Sep 16, 2021 | — |
| S-3MEF | Filing | Sep 15, 2021 | — |
| 424B5 | Prospectus supplement | Sep 15, 2021 | — |
| 8-K |
Current report
Other events
|
Sep 13, 2021 | Sep 13, 2021 |
| EFFECT | Filing | Aug 23, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 23, 2021 | — |
| CORRESP | Letter to the SEC | Aug 19, 2021 | — |
| S-3 | Shelf registration | Aug 11, 2021 | — |
| 10-Q | Quarterly report | Aug 11, 2021 | Jun 30, 2021 |
| 8-K | Current report | Aug 10, 2021 | Aug 10, 2021 |
| 8-K | Current report | May 25, 2021 | May 21, 2021 |
| S-8 | Employee stock plan registration | May 14, 2021 | — |
| 10-Q | Quarterly report | May 14, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 13, 2021 | May 13, 2021 |
| 8-K |
Current report
Other events
|
May 4, 2021 | Apr 28, 2021 |
| 424B5 | Prospectus supplement | Mar 24, 2021 | — |
| 10-K | Annual report | Mar 24, 2021 | Dec 31, 2020 |
| DEFA14A | Additional proxy material | Mar 24, 2021 | — |
| DEF 14A | Proxy statement | Mar 24, 2021 | Apr 28, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 23, 2021 | Mar 23, 2021 |
| 8-K |
Current report
Other events
|
Mar 15, 2021 | Mar 15, 2021 |
| PRE 14A | Preliminary proxy statement | Mar 9, 2021 | Apr 28, 2021 |
| 8-K |
Current report
Other events
|
Feb 9, 2021 | Feb 9, 2021 |
| 424B5 | Prospectus supplement | Feb 9, 2021 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 25, 2021 | Jan 25, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 22, 2021 | Jan 22, 2021 |
| 8-K |
Current report
Other events
|
Jan 14, 2021 | Jan 12, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 11, 2021 | Jan 8, 2021 |
| 8-K |
Current report
Other events
|
Jan 4, 2021 | Jan 4, 2021 |
| EFFECT | Filing | Nov 23, 2020 | — |
| CORRESP | Letter to the SEC | Nov 19, 2020 | — |
| UPLOAD | Letter from the SEC | Nov 18, 2020 | — |
| S-3 | Shelf registration | Nov 16, 2020 | — |
| 424B5 | Prospectus supplement | Nov 16, 2020 | — |
| 10-Q | Quarterly report | Nov 13, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2020 | Nov 12, 2020 |
| 424B3 | Prospectus | Oct 2, 2020 | — |
| EFFECT | Filing | Sep 28, 2020 | — |
| UPLOAD | Letter from the SEC | Sep 24, 2020 | — |
| CORRESP | Letter to the SEC | Sep 24, 2020 | — |
| S-1 | Registration statement | Sep 18, 2020 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 14, 2020 | Sep 11, 2020 |
| S-8 | Employee stock plan registration | Aug 18, 2020 | — |
| 10-Q | Quarterly report | Aug 13, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2020 | Aug 13, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 22, 2020 | Jun 22, 2020 |
| 8-K |
Current report
Other events
|
May 20, 2020 | May 20, 2020 |
| 424B5 | Prospectus supplement | May 20, 2020 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 18, 2020 | May 18, 2020 |
| 10-Q | Quarterly report | May 12, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 12, 2020 | May 12, 2020 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 8, 2020 | May 6, 2020 |
| 8-K |
Current report
Other events
|
Apr 21, 2020 | Apr 21, 2020 |
| DEF 14A | Proxy statement | Apr 2, 2020 | May 6, 2020 |
| 10-K | Annual report | Mar 26, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 26, 2020 | Mar 26, 2020 |
| PRE 14A | Preliminary proxy statement | Mar 18, 2020 | May 6, 2020 |
| 8-K |
Current report
Officer or director change
|
Feb 28, 2020 | Feb 25, 2020 |
| 424B4 | Prospectus | Feb 6, 2020 | — |
| POS EX | Filing | Feb 6, 2020 | — |
| EFFECT | Filing | Feb 5, 2020 | — |
| S-1MEF | Filing | Feb 5, 2020 | — |
| CORRESP | Letter to the SEC | Feb 3, 2020 | — |
| CORRESP | Letter to the SEC | Feb 3, 2020 | — |
| S-1/A | Amended registration statement | Feb 3, 2020 | — |
| S-1/A | Amended registration statement | Jan 27, 2020 | — |
| UPLOAD | Letter from the SEC | Jan 23, 2020 | — |
| S-1 | Registration statement | Jan 17, 2020 | — |
| 8-K |
Current report
Material agreement
|
Jan 6, 2020 | Jan 6, 2020 |
| 8-K |
Current report
Other events
|
Dec 12, 2019 | Dec 12, 2019 |
| 10-Q | Quarterly report | Nov 14, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2019 | Nov 14, 2019 |
| 10-Q | Quarterly report | Aug 14, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2019 | Aug 14, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Jul 1, 2019 | Jun 28, 2019 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
|
Jun 28, 2019 | Jun 28, 2019 |
| EFFECT | Filing | Jun 20, 2019 | — |
| CORRESP | Letter to the SEC | Jun 19, 2019 | — |
| S-3/A | Filing | Jun 18, 2019 | — |
| UPLOAD | Letter from the SEC | May 28, 2019 | — |
| S-3 | Shelf registration | May 22, 2019 | — |
| 8-K |
Current report
Material agreement
|
May 22, 2019 | May 21, 2019 |
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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- ATYR (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- San Diego, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1339970
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.