CMPX Compass Therapeutics, Inc.
company
SEC Filings & Insider Trading Activity 2026

CIK: 1738021
Health Care
Biological Products, (No Diagnostic Substances) 53 filings
Russell 2000

Latest Compass Therapeutics, Inc. (CMPX) SEC EDGAR filings in 2026, including the most recent 10-K annual report filed on March 5, 2026, a 10-Q quarterly report filed on May 5, 2026, an 8-K current report filed on August 6, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Compass Therapeutics, Inc. (CMPX) (SEC CIK 1738021), with AI-powered section-by-section summaries updated daily.

10-Q: 24
SC 13G: 9
8-K: 8
10-K: 8
SC 13D: 4

Latest 2026 SEC Filing Dates

10-K Annual Report
Mar 5, 2026
10-Q Quarterly Report
May 5, 2026
8-K Current Report
Aug 6, 2026

Go deeper on Compass Therapeutics, Inc.

Ask AI about CMPX filings. Chat with the 10-K, 10-Q, and 8-K for instant answers on financials, risks, and guidance.

Track institutional money. See which funds are building or cutting CMPX positions, quarter over quarter.

Catch cross-signals. Spot when insider buying, fund accumulation, and activist stakes line up on CMPX.

Recent 8-K Filings
Current Reports

AI-powered analysis of Compass Therapeutics, Inc. (CMPX) 8-K current reports disclosing material events.

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
8-K
Aug 6, 2026---
8-K
Jul 1, 2026---
8-K
Jun 23, 2026---
8-K
Jun 11, 2026---
8-K
May 5, 2026---
10-Q
May 5, 2026Mar 31, 2026-
8-K
Apr 27, 2026---
10-K
Mar 5, 2026Dec 31, 2025-
8-K
Mar 5, 2026-Analysis-
8-K
Jan 6, 2026--
10-Q
Nov 5, 2025Sep 30, 2025-
10-Q
Aug 11, 2025Jun 30, 2025-
10-Q
May 8, 2025Mar 31, 2025-
10-K
Feb 27, 2025Dec 31, 2024-
10-Q
Nov 12, 2024Sep 30, 2024-
10-Q
Aug 12, 2024Jun 30, 2024-
SC 13G
Aug 2, 2024--
10-Q
May 13, 2024Mar 31, 2024-
10-K
Mar 21, 2024Dec 31, 2023-
SC 13G
Feb 1, 2024--
SC 13G
Nov 27, 2023--
10-Q
Nov 9, 2023Sep 30, 2023-
10-Q
Aug 3, 2023Jun 30, 2023-
10-Q
May 4, 2023Mar 31, 2023-
10-K
Mar 15, 2023Dec 31, 2022-

13F Fund Holdings: Quarterly Trend

Latest: Q1 2026

Aggregate CMPX share value held by 13F filers tracked by SignalX, by quarter.

Position changes: Q4 2025Q1 2026
Top Buyers
Top Sellers
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 149 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe.

Frequently Asked Questions

What are the latest CMPX SEC filings in 2026?

Compass Therapeutics, Inc. (CMPX) has filed a 10-K annual report on March 5, 2026, a 10-Q quarterly report on May 5, 2026, an 8-K current report on August 6, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.

When did CMPX file its most recent 10-K annual report?

Compass Therapeutics, Inc. (CMPX) filed its most recent 10-K annual report on March 5, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.

How do I view CMPX 10-Q quarterly reports?

Compass Therapeutics, Inc. (CMPX)'s most recent 10-Q quarterly report was filed on May 5, 2026. SignalX displays every CMPX 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.

What 8-K current reports has CMPX filed recently?

Compass Therapeutics, Inc. (CMPX)'s most recent 8-K was filed on August 6, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.

Where can I find CMPX insider trading activity (Form 4)?

SignalX aggregates every CMPX Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does CMPX file with the SEC?

Compass Therapeutics, Inc. (CMPX) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new CMPX filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs, such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Compass Therapeutics, Inc. (CMPX).

What is CMPX's SEC CIK number?

Compass Therapeutics, Inc. (CMPX)'s SEC CIK (Central Index Key) number is 1738021. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1738021 to look up all CMPX filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Stay on top of Compass Therapeutics, Inc. SEC filings

Insider trading data, fund holdings, cross-signal detection, and AI-powered analysis for 53+ filings.