13D Filings
Compass Therapeutics, Inc.
CMPX
Amendment
Ownership

4.50%

Total Shares

7,788,150

Issuer CIK

1738021

CUSIP

20454B104

Event Date

Aug 13, 2025

Accepted

Aug 18, 2025, 06:35 PM

Reporting Persons (4)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Commander Aggregator, LP
Partnership
4.50%7,788,15007,788,150
Enavate Sciences, LP
Partnership
4.50%7,788,15007,788,150
Enavate Sciences GP, LLC
Other
4.50%7,788,15007,788,150
Enavate Sciences Holdings, LLC
Other
4.50%7,788,15007,788,150
Disclosure Items (2)

Security Title

Common Stock, par value $0.0001 per share

Issuer Name

Compass Therapeutics, Inc.

Issuer Address

80 Guest St., Boston, MA, 02135

Percentage of Class

Item 5(a) of this Statement is hereby amended and restated in its entirety as follows: The information set forth in rows (11) and (13) of the cover pages of this Statement is incorporated by reference into this Item 5.

Number of Shares

Item 5(b) of this Statement is hereby amended and restated in its entirety as follows: The information set forth in rows (11) and (13) of the cover pages of this Statement is incorporated by reference into this Item 5.

Transactions

None of the Reporting Entities has effected any transactions in the Common Stock in the past 60 days.

Shareholders

Not Applicable

Date of 5% Ownership

As a result of the decrease in the outstanding shares, effective as of August 14, 2025, as reported by the Issuer in the Prospectus filed on August 13, 2025, the Reporting Entities' beneficial ownership ceased to exceed 5% on such date and the Reporting Entities are no longer subject to Section 13 reporting.

Compass Therapeutics, Inc. — Schedule 13D | 13D Filings