Blackstone Holdings II L.P.

Holdings History for Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share (CMPX)

Symbol: CMPX on Nasdaq
Investment type: Equity / Common Stock, $0.0001 par value per share
Latest Disclosed Shares Owned: 6,126,182 shares
Security Ownership %: 3.4%

Blackstone Alternative Asset Management Associates LLC ownership in Compass Therapeutics, Inc. Common Stock, $0.0001 par value per share (CMPX)

13 Feb 2026 - Blackstone Alternative Asset Management Associates LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 6,126,182 shares of Compass Therapeutics, Inc. Common Stock, $0.0001 par value per share (CMPX). This represents 3.4% ownership of the company. This is the first filing by Blackstone Holdings II L.P. disclosing ownership of Compass Therapeutics, Inc. Common Stock, $0.0001 par value per share (CMPX).

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Blackstone Alternative Asset Management Associates LLC	3.4%		$31,917,408	6,126,182			$5.21	13G/A	31 Dec 2025	13 Feb 2026, 16:30