Company · CIK 1339970 # aTYR PHARMA INC | CIK | [1339970](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001339970) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 2836 — Biological Products, (No Diagnostic Substances) | | Incorporated in | DE | | Business address | CA | | Listed | ATYR (Nasdaq) | | First annual or quarterly report | 2015-06-18 | ## Offerings 11 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-289360 | Shelf Effective | 2025-08-07 | 2025-08-18 | 2 | | 333-275455 | Shelf Effective | 2023-11-09 | 2024-12-23 | 3 | | 333-263585 | Shelf Effective | 2022-03-15 | 2023-11-09 | 5 | | 333-250095 | Shelf Effective | 2020-11-16 | 2022-04-22 | 4 | | 333-258725 | Shelf Effective | 2021-08-11 | 2021-09-16 | 4 | | 333-231658 | Shelf Effective | 2019-05-22 | 2021-02-09 | 5 | | 333-248905 | Registered company Effective | 2020-09-18 | 2020-09-28 | 2 | | 333-235951 | Registered company Final prospectus | 2020-01-17 | 2020-02-06 | 5 | | 333-211998 | Shelf Effective | 2016-06-13 | 2019-05-22 | 4 | | 333-220463 | Shelf Effective | 2017-09-14 | 2017-09-27 | 2 | | 333-203272 | IPO Final prospectus | 2015-04-06 | 2015-05-07 | 6 | ## Filings 43 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2025-08-18 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999525002665/9999999995-25-002665-index.htm) Declared effective | 333-289360 | 9999999995-25-002665 | | 2025-08-07 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000133997025000011/0001339970-25-000011-index.htm) Shelf registered | 333-289360 | 0001339970-25-000011 | | 2024-12-23 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000095017024139642/0000950170-24-139642-index.htm) Shelf takedown | 333-275455 | 0000950170-24-139642 | | 2023-11-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999523003395/9999999995-23-003395-index.htm) Declared effective | 333-275455 | 9999999995-23-003395 | | 2023-11-09 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000095017023062210/0000950170-23-062210-index.htm) Shelf registered | 333-275455 | 0000950170-23-062210 | | 2023-11-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000095017023062171/0000950170-23-062171-index.htm) Shelf takedown | 333-263585 | 0000950170-23-062171 | | 2023-02-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000095017023002380/0000950170-23-002380-index.htm) Shelf takedown | 333-263585 | 0000950170-23-002380 | | 2023-02-08 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000095017023002149/0000950170-23-002149-index.htm) Shelf takedown | 333-263585 | 0000950170-23-002149 | | 2022-04-22 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459022015287/0001564590-22-015287-index.htm) Shelf takedown | 333-250095 | 0001564590-22-015287 | | 2022-04-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999522000896/9999999995-22-000896-index.htm) Declared effective | 333-263585 | 9999999995-22-000896 | | 2022-03-15 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000156459022010472/0001564590-22-010472-index.htm) Shelf registered | 333-263585 | 0001564590-22-010472 | | 2021-09-16 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459021048143/0001564590-21-048143-index.htm) Shelf takedown | 333-258725 | 0001564590-21-048143 | | 2021-09-15 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459021048048/0001564590-21-048048-index.htm) Shelf takedown | 333-258725 | 0001564590-21-048048 | | 2021-08-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999521003280/9999999995-21-003280-index.htm) Declared effective | 333-258725 | 9999999995-21-003280 | | 2021-08-11 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000156459021043515/0001564590-21-043515-index.htm) Shelf registered | 333-258725 | 0001564590-21-043515 | | 2021-03-24 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459021014984/0001564590-21-014984-index.htm) Shelf takedown | 333-250095 | 0001564590-21-014984 | | 2021-02-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459021004999/0001564590-21-004999-index.htm) Shelf takedown | 333-231658 | 0001564590-21-004999 | | 2020-11-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999520003282/9999999995-20-003282-index.htm) Declared effective | 333-250095 | 9999999995-20-003282 | | 2020-11-16 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000156459020053946/0001564590-20-053946-index.htm) Shelf registered | 333-250095 | 0001564590-20-053946 | | 2020-11-16 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459020053945/0001564590-20-053945-index.htm) Shelf takedown | 333-231658 | 0001564590-20-053945 | | 2020-09-28 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999520002595/9999999995-20-002595-index.htm) Declared effective | 333-248905 | 9999999995-20-002595 | | 2020-09-18 | [S-1](https://www.sec.gov/Archives/edgar/data/1339970/000156459020044008/0001564590-20-044008-index.htm) Registration filed | 333-248905 | 0001564590-20-044008 | | 2020-05-20 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459020026381/0001564590-20-026381-index.htm) Shelf takedown | 333-231658 | 0001564590-20-026381 | | 2020-02-06 | [424B4](https://www.sec.gov/Archives/edgar/data/1339970/000156459020003745/0001564590-20-003745-index.htm) Final prospectus | 333-235951 | 0001564590-20-003745 | | 2020-02-05 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999520000261/9999999995-20-000261-index.htm) Declared effective | 333-235951 | 9999999995-20-000261 | | 2020-02-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1339970/000156459020002994/0001564590-20-002994-index.htm) Amendment | 333-235951 | 0001564590-20-002994 | | 2020-01-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1339970/000119312520014827/0001193125-20-014827-index.htm) Amendment | 333-235951 | 0001193125-20-014827 | | 2020-01-17 | [S-1](https://www.sec.gov/Archives/edgar/data/1339970/000156459020001282/0001564590-20-001282-index.htm) Registration filed | 333-235951 | 0001564590-20-001282 | | 2019-06-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999519001392/9999999995-19-001392-index.htm) Declared effective | 333-231658 | 9999999995-19-001392 | | 2019-05-22 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000156459019020092/0001564590-19-020092-index.htm) Shelf registered | 333-231658 | 0001564590-19-020092 | | 2019-05-22 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459019020088/0001564590-19-020088-index.htm) Shelf takedown | 333-211998 | 0001564590-19-020088 | | 2019-04-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1339970/000156459019011316/0001564590-19-011316-index.htm) Shelf takedown | 333-211998 | 0001564590-19-011316 | | 2017-09-27 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999517002487/9999999995-17-002487-index.htm) Declared effective | 333-220463 | 9999999995-17-002487 | | 2017-09-14 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000095012317008503/0000950123-17-008503-index.htm) Shelf registered | 333-220463 | 0000950123-17-008503 | | 2016-06-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999516004979/9999999995-16-004979-index.htm) Declared effective | 333-211998 | 9999999995-16-004979 | | 2016-06-13 | [S-3](https://www.sec.gov/Archives/edgar/data/1339970/000119312516620255/0001193125-16-620255-index.htm) Shelf registered | 333-211998 | 0001193125-16-620255 | | 2015-05-07 | [424B4](https://www.sec.gov/Archives/edgar/data/1339970/000119312515177238/0001193125-15-177238-index.htm) Final prospectus | 333-203272 | 0001193125-15-177238 | | 2015-05-06 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1339970/999999999515001242/9999999995-15-001242-index.htm) Declared effective | 333-203272 | 9999999995-15-001242 | | 2015-05-06 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1339970/000119312515172717/0001193125-15-172717-index.htm) Amendment | 333-203272 | 0001193125-15-172717 | | 2015-05-01 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1339970/000119312515166665/0001193125-15-166665-index.htm) Amendment | 333-203272 | 0001193125-15-166665 | | 2015-04-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1339970/000119312515148013/0001193125-15-148013-index.htm) Amendment | 333-203272 | 0001193125-15-148013 | | 2015-04-06 | [S-1](https://www.sec.gov/Archives/edgar/data/1339970/000119312515120170/0001193125-15-120170-index.htm) Registration filed | 333-203272 | 0001193125-15-120170 | | 2014-12-22 | [DRS](https://www.sec.gov/Archives/edgar/data/1339970/000095012314012840/0000950123-14-012840-index.htm) Draft made public | 377-00890 | 0000950123-14-012840 | [All filings of this company](https://equitycapital.markets/filings?cik=1339970) · [CSV](https://equitycapital.markets/filings.csv?cik=1339970) --- Source page: https://equitycapital.markets/company/1339970 · Data: U.S. SEC EDGAR · CC BY 4.0