Company · CIK 1681087 # Tectonic Therapeutic, Inc. | CIK | [1681087](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001681087) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 2836 — Biological Products, (No Diagnostic Substances) | | Incorporated in | NY | | Business address | MA | | Listed | TECX (Nasdaq) | | First annual or quarterly report | 2018-08-09 | ## Offerings 7 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-288539 | Shelf Effective | 2025-07-07 | 2025-07-15 | 2 | | 333-280909 | Registered company Effective | 2024-07-19 | 2025-07-08 | 9 | | 333-286133 | Registered company Effective | 2025-03-26 | 2025-07-08 | 5 | | 333-268255 | Shelf Withdrawn | 2022-11-08 | 2023-11-03 | 2 | | 333-235641 | Shelf Effective | 2019-12-20 | 2020-11-20 | 6 | | 333-232489 | Shelf Effective | 2019-07-01 | 2019-12-20 | 5 | | 333-225213 | IPO Final prospectus | 2018-05-25 | 2018-06-21 | 6 | ## Filings 37 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2025-07-15 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999525002258/9999999995-25-002258-index.htm) Declared effective | 333-288539 | 9999999995-25-002258 | | 2025-07-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999525002193/9999999995-25-002193-index.htm) Declared effective | 333-286133 | 9999999995-25-002193 | | 2025-07-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999525002190/9999999995-25-002190-index.htm) Declared effective | 333-280909 | 9999999995-25-002190 | | 2025-07-07 | [S-3](https://www.sec.gov/Archives/edgar/data/1681087/000119312525156183/0001193125-25-156183-index.htm) Shelf registered | 333-288539 | 0001193125-25-156183 | | 2025-06-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525139142/0001193125-25-139142-index.htm) Shelf takedown | 333-280909 | 0001193125-25-139142 | | 2025-06-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525139140/0001193125-25-139140-index.htm) Shelf takedown | 333-286133 | 0001193125-25-139140 | | 2025-05-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525122540/0001193125-25-122540-index.htm) Shelf takedown | 333-280909 | 0001193125-25-122540 | | 2025-05-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525122537/0001193125-25-122537-index.htm) Shelf takedown | 333-286133 | 0001193125-25-122537 | | 2025-04-03 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999525000964/9999999995-25-000964-index.htm) Declared effective | 333-280909 | 9999999995-25-000964 | | 2025-04-02 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999525000952/9999999995-25-000952-index.htm) Declared effective | 333-286133 | 9999999995-25-000952 | | 2025-03-26 | [S-1](https://www.sec.gov/Archives/edgar/data/1681087/000119312525064163/0001193125-25-064163-index.htm) Registration filed | 333-286133 | 0001193125-25-064163 | | 2025-02-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525025168/0001193125-25-025168-index.htm) Shelf takedown | 333-280909 | 0001193125-25-025168 | | 2025-02-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312525025158/0001193125-25-025158-index.htm) Shelf takedown | 333-280909 | 0001193125-25-025158 | | 2024-07-31 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312524189184/0001193125-24-189184-index.htm) Shelf takedown | 333-280909 | 0001193125-24-189184 | | 2024-07-30 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999524002323/9999999995-24-002323-index.htm) Declared effective | 333-280909 | 9999999995-24-002323 | | 2024-07-19 | [S-1](https://www.sec.gov/Archives/edgar/data/1681087/000119312524181624/0001193125-24-181624-index.htm) Registration filed | 333-280909 | 0001193125-24-181624 | | 2024-05-03 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999524001368/9999999995-24-001368-index.htm) Declared effective | 333-277048 | 9999999995-24-001368 | | 2023-11-03 | [RW](https://www.sec.gov/Archives/edgar/data/1681087/000114036123051412/0001140361-23-051412-index.htm) Withdrawn | 333-268255 | 0001140361-23-051412 | | 2022-11-08 | [S-3](https://www.sec.gov/Archives/edgar/data/1681087/000114036122040534/0001140361-22-040534-index.htm) Shelf registered | 333-268255 | 0001140361-22-040534 | | 2020-11-20 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312520299380/0001193125-20-299380-index.htm) Shelf takedown | 333-235641 | 0001193125-20-299380 | | 2020-11-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312520298119/0001193125-20-298119-index.htm) Shelf takedown | 333-235641 | 0001193125-20-298119 | | 2020-02-13 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312520035569/0001193125-20-035569-index.htm) Shelf takedown | 333-235641 | 0001193125-20-035569 | | 2020-02-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312520033439/0001193125-20-033439-index.htm) Shelf takedown | 333-235641 | 0001193125-20-033439 | | 2020-01-14 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999520000091/9999999995-20-000091-index.htm) Declared effective | 333-235641 | 9999999995-20-000091 | | 2019-12-20 | [S-3](https://www.sec.gov/Archives/edgar/data/1681087/000119312519320919/0001193125-19-320919-index.htm) Shelf registered | 333-235641 | 0001193125-19-320919 | | 2019-12-20 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312519320892/0001193125-19-320892-index.htm) Shelf takedown | 333-232489 | 0001193125-19-320892 | | 2019-07-17 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312519195743/0001193125-19-195743-index.htm) Shelf takedown | 333-232489 | 0001193125-19-195743 | | 2019-07-16 | [424B5](https://www.sec.gov/Archives/edgar/data/1681087/000119312519194771/0001193125-19-194771-index.htm) Shelf takedown | 333-232489 | 0001193125-19-194771 | | 2019-07-10 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999519001560/9999999995-19-001560-index.htm) Declared effective | 333-232489 | 9999999995-19-001560 | | 2019-07-01 | [S-3](https://www.sec.gov/Archives/edgar/data/1681087/000119312519187439/0001193125-19-187439-index.htm) Shelf registered | 333-232489 | 0001193125-19-187439 | | 2018-06-21 | [424B4](https://www.sec.gov/Archives/edgar/data/1681087/000119312518199473/0001193125-18-199473-index.htm) Final prospectus | 333-225213 | 0001193125-18-199473 | | 2018-06-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1681087/999999999518001560/9999999995-18-001560-index.htm) Declared effective | 333-225213 | 9999999995-18-001560 | | 2018-06-18 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1681087/000119312518194951/0001193125-18-194951-index.htm) Amendment | 333-225213 | 0001193125-18-194951 | | 2018-06-11 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1681087/000119312518188630/0001193125-18-188630-index.htm) Amendment | 333-225213 | 0001193125-18-188630 | | 2018-06-01 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1681087/000119312518181102/0001193125-18-181102-index.htm) Amendment | 333-225213 | 0001193125-18-181102 | | 2018-05-25 | [S-1](https://www.sec.gov/Archives/edgar/data/1681087/000119312518175024/0001193125-18-175024-index.htm) Registration filed | 333-225213 | 0001193125-18-175024 | | 2018-04-06 | [DRS](https://www.sec.gov/Archives/edgar/data/1681087/000095012318003381/0000950123-18-003381-index.htm) Draft made public | 377-02010 | 0000950123-18-003381 | [All filings of this company](https://equitycapital.markets/filings?cik=1681087) · [CSV](https://equitycapital.markets/filings.csv?cik=1681087) --- Source page: https://equitycapital.markets/company/1681087 · Data: U.S. SEC EDGAR · CC BY 4.0