Skip to main content
CMPX logo

CMPX

Compass Therapeutics, Inc.
$2.34 +0.02 (+0.86%) At close · Jul 8
Market Cap
$416.00M
Shares
180,087,915

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 204
Total Value: $929,234,500
Total Shares: 175,706,219
Showing 1–100 of 210 holdings by value · page 1 of 3

Institutional Ownership Trend

19 quarters

Holder Concentration

Across 203 13F filers
Top Holder
9.6%
Jun 2023 → Mar 2026 · range 9.6% – 26.0%
of institutional value
Top 5
37.2%
Jun 2023 → Mar 2026 · range 37.2% – 60.7%
of institutional value
Top 10
58.1%
Jun 2023 → Mar 2026 · range 58.1% – 83.3%
of institutional value
HHI
425
Jun 2023 → Mar 2026 · range 425 – 1,107
Broadly held
Showing 100 of 210
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1738021 CUSIP 20454B104 13F (30d) 4 filings 4 filers Visit website