CMPX — COMPASS THERAPEUTICS INC

Ownership history in HAP Trading, LLC  ·  2 quarters on record

This page tracks every 13F SEC filing in which HAP Trading, LLC reported a position in COMPASS THERAPEUTICS INC (CMPX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.01% (2025 Q1)
Avg. % of fund
0.01%
First filed
2025 Q1
Last filed
2025 Q1
Quarters held
2
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q1 REDUCED 77,300 -122,500 -61.3% 0.00% $11.7M $1.90
2025 Q1 INITIATED 199,800 — — 0.01% $89.7M $1.90
% of Fund (quarterly)    CMPX price (monthly, adj. close)

Other funds also holding CMPX

As of 2025 Q4 — sorted by position size

Birchview Capital, LP 3Y 7Y 5.01% TANG CAPITAL MANAGEMENT LLC 3Y 7Y 4.45% ACUTA CAPITAL PARTNERS, LLC 3Y 7Y 3.99% CAXTON CORP 3Y 7Y 3.7% Vivo Capital, LLC 3Y 7Y 3.31% Monashee Investment Management LLC 3Y 7Y 3.03% Seven Fleet Capital Management LP 2.32% Palo Alto Investors LP 3Y 7Y 1.89% ORBIMED ADVISORS LLC 3Y 7Y 1.67% SUVRETTA CAPITAL MANAGEMENT, LLC 3Y 7Y 1.56%
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