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Compass Therapeutics (CMPX) 10K Form and Latest SEC Filings 2026

Compass Therapeutics logo
$1.81 -0.02 (-1.09%)
Closing price 04:00 PM Eastern
Extended Trading
$1.80 -0.01 (-0.28%)
As of 07:56 PM Eastern
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Latest Compass Therapeutics SEC Filings & Recent Activity

Compass Therapeutics (NASDAQ:CMPX) has submitted 246+ documents to the U.S. Securities and Exchange Commission (SEC) since 2018. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in Compass Therapeutics's financial statements. The most recent filing was a Form 10-Q submitted on May 5, 2026.

Form 4
Compass Therapeutics, Inc. Reports Ownership Change on Apr. 29, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Compass Therapeutics Files Current Report on May. 5, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-Q
Compass Therapeutics Files Quarterly Report on May. 5, 2026

The 10-Q contains Compass Therapeutics's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

Compass Therapeutics SEC Filing History

Browse Compass Therapeutics' complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/05/2026 7:01 AM
Compass Therapeutics (1738021) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
05/05/2026 6:30 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/29/2026 4:11 PM
Anderman Jonathan (2032625) Reporting
Compass Therapeutics (1738021) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/29/2026 7:08 AM
Compass Therapeutics (1738021) Filer
Form DEF 14A
04/29/2026 7:09 AM
Compass Therapeutics (1738021) Filer
Form DEFA14A
04/29/2026 7:15 AM
Compass Therapeutics (1738021) Filer
Form ARS
04/27/2026 6:30 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/12/2026 7:01 AM
Compass Therapeutics (1738021) Filer
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
03/05/2026 6:30 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/05/2026 6:30 AM
Compass Therapeutics (1738021) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/13/2026 3:30 PM
Blackstone Holdings II L.P. (1484870) Filed by
Compass Therapeutics (1738021) Subject
Form SCHEDULE 13G/A
02/10/2026 7:00 AM
Compass Therapeutics (1738021) Issuer
Schuetz Thomas J. (1591464) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/12/2026 7:00 AM
Compass Therapeutics (1738021) Issuer
Schuetz Thomas J. (1591464) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/07/2026 11:15 PM
Compass Therapeutics (1738021) Filer
Form EFFECT
01/06/2026 7:00 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/05/2026 3:30 PM
Compass Therapeutics (1738021) Issuer
Prasad Arjun (2102138) Reporting
Form 3
Initial statement of beneficial ownership of securities  
01/05/2026 3:31 PM
Compass Therapeutics (1738021) Issuer
Sirard Cynthia (1808408) Reporting
Form 3
Initial statement of beneficial ownership of securities  
01/05/2026 3:32 PM
Anderman Jonathan (2032625) Reporting
Compass Therapeutics (1738021) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:32 PM
Compass Therapeutics (1738021) Issuer
Ferneau Philip (1814202) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:32 PM
Compass Therapeutics (1738021) Issuer
GORDON CARL L (1282930) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:32 PM
Boylan James P (1953094) Reporting
Compass Therapeutics (1738021) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:32 PM
Compass Therapeutics (1738021) Issuer
GRAY MARY ANN (1261974) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:32 PM
Compass Therapeutics (1738021) Issuer
Lerner Neil (1505148) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Chiniara Ellen (1398764) Reporting
Compass Therapeutics (1738021) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Compass Therapeutics (1738021) Issuer
LINDAHL RICHARD S (1196632) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Compass Therapeutics (1738021) Issuer
Prasad Arjun (2102138) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Compass Therapeutics (1738021) Issuer
Schuetz Thomas J. (1591464) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Compass Therapeutics (1738021) Issuer
Sirard Cynthia (1808408) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 3:33 PM
Compass Therapeutics (1738021) Issuer
Shin Barry (1780448) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/31/2025 3:02 PM
Compass Therapeutics (1738021) Filer
Form DEL AM
11/18/2025 7:30 AM
Compass Therapeutics (1738021) Issuer
Schuetz Thomas J. (1591464) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/14/2025 5:35 PM
Compass Therapeutics (1738021) Subject
Vivo Opportunity Fund Holdings, L.P. (1930214) Filed by
Form SCHEDULE 13G
11/05/2025 6:30 AM
Compass Therapeutics (1738021) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
11/05/2025 6:30 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/29/2025 4:24 PM
BIOTECHNOLOGY VALUE FUND L P (918923) Filed by
Compass Therapeutics (1738021) Subject
Form SCHEDULE 13G
08/21/2025 8:07 AM
Compass Therapeutics (1738021) Subject
SUVRETTA CAPITAL MANAGEMENT, LLC (1569064) Filed by
Form SCHEDULE 13G/A
08/18/2025 5:35 PM
Commander Aggregator, LP (1953093) Filed by
Compass Therapeutics (1738021) Subject
Form SCHEDULE 13D/A
08/15/2025 4:28 PM
Compass Therapeutics (1738021) Subject
ORBIMED ADVISORS LLC (1055951) Filed by
Form SCHEDULE 13D/A
08/14/2025 3:15 PM
Compass Therapeutics (1738021) Subject
TANG CAPITAL MANAGEMENT LLC (1232621) Filed by
Form SCHEDULE 13G/A
08/14/2025 9:49 AM
Compass Therapeutics (1738021) Subject
RTW INVESTMENTS, LP (1493215) Filed by
Form SCHEDULE 13G/A
08/14/2025 7:05 AM
Compass Therapeutics (1738021) Subject
RTW INVESTMENTS, LP (1493215) Filed by
Form SCHEDULE 13G/A
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08/13/2025 7:21 PM
Compass Therapeutics (1738021) Subject
SUVRETTA CAPITAL MANAGEMENT, LLC (1569064) Filed by
Form SCHEDULE 13G
08/13/2025 4:05 PM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/12/2025 3:29 PM
Compass Therapeutics (1738021) Subject
MPM BioImpact LLC (1687078) Filed by
Form SCHEDULE 13G/A
08/12/2025 3:19 PM
Compass Therapeutics (1738021) Filer
Form 424B5
08/11/2025 6:00 AM
Compass Therapeutics (1738021) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/11/2025 6:01 AM
Compass Therapeutics (1738021) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
07/16/2025 6:02 PM
BlackRock, Inc. (2012383) Filed by
Compass Therapeutics (1738021) Subject
Form SCHEDULE 13G/A
05/27/2025 2:24 PM
Compass Therapeutics (1738021) Issuer
Schuetz Thomas J. (1591464) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

Compass Therapeutics SEC Filings - Frequently Asked Questions

Compass Therapeutics (CMPX) has submitted 246+ filings to the SEC since 2018. You can browse the complete history or filter by form type using the tools above.

Compass Therapeutics's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on Compass Therapeutics's financial statements page.

The most recent filing was a Form 10-Q submitted on May 5, 2026. This was a quarterly financial update for 2025.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NASDAQ:CMPX) was last updated on 5/19/2026 by MarketBeat.com Staff.
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