Form 4/A - Statement of changes in beneficial ownership of securities: [Amend]
SEC Accession No. 0001171843-26-002893
Filing Date
2026-04-30
Accepted
2026-04-30 16:00:25
Documents
1
Period of Report
2026-04-29

Document Format Files

Seq Description Document Type Size
1 ownership.html 4/A  
1 ownership.xml 4/A 4198
  Complete submission text file 0001171843-26-002893.txt   5708
Mailing Address 80 GUEST STREET BOSTON MA 02135
Business Address 80 GUEST STREET BOSTON MA 02135 617-500-8099
Compass Therapeutics, Inc. (Issuer) CIK: 0001738021 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)
(CF Office: 03 Life Sciences)

Mailing Address COMPASS THERAPEUTICS, INC. 80 GUEST STREET, SUITE 601 BOSTON MA 02135
Business Address
Anderman Jonathan (Reporting) CIK: 0002032625 (see all company filings)

Type: 4/A | Act: 34 | File No.: 001-39696 | Film No.: 26924767