Company · CIK 1738021 # Compass Therapeutics, Inc. | CIK | [1738021](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001738021) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 2836 — Biological Products, (No Diagnostic Substances) | | Incorporated in | DE | | Business address | MA | | Listed | CMPX (Nasdaq) | | First annual or quarterly report | 2018-08-14 | ## Offerings 6 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-292491 | Shelf Effective | 2025-12-30 | 2026-01-07 | 2 | | 333-281891 | Shelf Effective | 2024-08-30 | 2025-08-13 | 4 | | 333-268652 | Shelf Effective | 2022-12-02 | 2023-01-20 | 2 | | 333-257821 | Shelf Effective | 2021-07-09 | 2022-08-01 | 7 | | 333-244353 | Registered company Effective | 2020-08-11 | 2021-03-08 | 4 | | 333-249536 | Registered company Withdrawn | 2020-10-19 | 2020-11-13 | 3 | ## Filings 23 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2026-01-07 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999526000102/9999999995-26-000102-index.htm) Declared effective | 333-292491 | 9999999995-26-000102 | | 2025-12-30 | [S-3](https://www.sec.gov/Archives/edgar/data/1738021/000119312525337063/0001193125-25-337063-index.htm) Shelf registered | 333-292491 | 0001193125-25-337063 | | 2025-08-13 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312525179955/0001193125-25-179955-index.htm) Shelf takedown | 333-281891 | 0001193125-25-179955 | | 2025-08-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312525178973/0001193125-25-178973-index.htm) Shelf takedown | 333-281891 | 0001193125-25-178973 | | 2024-09-06 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999524002748/9999999995-24-002748-index.htm) Declared effective | 333-281891 | 9999999995-24-002748 | | 2024-08-30 | [S-3](https://www.sec.gov/Archives/edgar/data/1738021/000119312524211242/0001193125-24-211242-index.htm) Shelf registered | 333-281891 | 0001193125-24-211242 | | 2023-01-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999523000145/9999999995-23-000145-index.htm) Declared effective | 333-268652 | 9999999995-23-000145 | | 2022-12-02 | [S-3](https://www.sec.gov/Archives/edgar/data/1738021/000117184322007790/0001171843-22-007790-index.htm) Shelf registered | 333-268652 | 0001171843-22-007790 | | 2022-08-01 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312522207846/0001193125-22-207846-index.htm) Shelf takedown | 333-257821 | 0001193125-22-207846 | | 2021-12-15 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312521357498/0001193125-21-357498-index.htm) Shelf takedown | 333-257821 | 0001193125-21-357498 | | 2021-12-15 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312521357496/0001193125-21-357496-index.htm) Shelf takedown | 333-257821 | 0001193125-21-357496 | | 2021-11-03 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312521318640/0001193125-21-318640-index.htm) Shelf takedown | 333-257821 | 0001193125-21-318640 | | 2021-11-01 | [424B5](https://www.sec.gov/Archives/edgar/data/1738021/000119312521315459/0001193125-21-315459-index.htm) Shelf takedown | 333-257821 | 0001193125-21-315459 | | 2021-07-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999521002847/9999999995-21-002847-index.htm) Declared effective | 333-257821 | 9999999995-21-002847 | | 2021-07-09 | [S-3](https://www.sec.gov/Archives/edgar/data/1738021/000119312521212011/0001193125-21-212011-index.htm) Shelf registered | 333-257821 | 0001193125-21-212011 | | 2021-03-08 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999521000858/9999999995-21-000858-index.htm) Declared effective | 333-244353 | 9999999995-21-000858 | | 2020-11-13 | [RW](https://www.sec.gov/Archives/edgar/data/1738021/000119312520293162/0001193125-20-293162-index.htm) Withdrawn | 333-249536 | 0001193125-20-293162 | | 2020-11-09 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1738021/000119312520288526/0001193125-20-288526-index.htm) Amendment | 333-249536 | 0001193125-20-288526 | | 2020-10-19 | [S-1](https://www.sec.gov/Archives/edgar/data/1738021/000119312520271775/0001193125-20-271775-index.htm) Registration filed | 333-249536 | 0001193125-20-271775 | | 2020-09-25 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1738021/999999999520002580/9999999995-20-002580-index.htm) Declared effective | 333-244353 | 9999999995-20-002580 | | 2020-09-23 | [DRS](https://www.sec.gov/Archives/edgar/data/1738021/000095012320009900/0000950123-20-009900-index.htm) Draft made public | 377-03585 | 0000950123-20-009900 | | 2020-09-18 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1738021/000119312520249227/0001193125-20-249227-index.htm) Amendment | 333-244353 | 0001193125-20-249227 | | 2020-08-11 | [S-1](https://www.sec.gov/Archives/edgar/data/1738021/000119312520216242/0001193125-20-216242-index.htm) Registration filed | 333-244353 | 0001193125-20-216242 | [All filings of this company](https://equitycapital.markets/filings?cik=1738021) · [CSV](https://equitycapital.markets/filings.csv?cik=1738021) --- Source page: https://equitycapital.markets/company/1738021 · Data: U.S. SEC EDGAR · CC BY 4.0