Compass Therapeutics, Inc. (CMPX) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 05, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 34.04% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
190M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

CMPX currently has 186M outstanding shares. with minimal authorized share overhang for future dilution. The company has significantly diluted shareholders by 34.04% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 05, 2026

10-Q filing | 186.4M shares outstanding

190M 0
Dec 30, 2025

S-3 filing: This S-3 filing from 2025-12-30 relates to an at-the-market offering of common stock.

180M 0
Aug 11, 2025

10-Q filing | 138.3M shares outstanding

140M 0
May 08, 2025

10-Q filing | 138.2M shares outstanding

140M 0
Feb 27, 2025

10-K filing | 137.4M shares outstanding

140M 0
Nov 12, 2024

10-Q filing | 137.6M shares outstanding

140M 0
Aug 30, 2024

S-3 filing: The company is filing an S-3 to offer common stock, preferred stock, warrants and/or units up to $300,000,000. They are also offering shares of common stock having an aggregate offering price of up to $55,000,000 through an at the market offering.

140M 0
Aug 12, 2024

10-Q filing | 137.6M shares outstanding

140M 0
May 13, 2024

10-Q filing | 136.6M shares outstanding

140M 0
Mar 21, 2024

10-K filing | 127.0M shares outstanding

130M 0
Nov 09, 2023

10-Q filing | 127.4M shares outstanding

130M 0
Aug 03, 2023

10-Q filing | 126.7M shares outstanding

130M 0
May 04, 2023

10-Q filing | 126.4M shares outstanding

130M 0
Mar 15, 2023

10-K filing | 126.3M shares outstanding

130M 0
Dec 02, 2022

S-3 filing: This prospectus relates to the offering and resale by the selling stockholders of up to 25,000,000 shares of common stock of Compass Therapeutics, Inc.

100M 0
Nov 09, 2022

10-Q filing | 101.0M shares outstanding

100M 0
Aug 01, 2022

10-Q filing | 100.9M shares outstanding

100M 0
May 09, 2022

10-Q filing | 101.3M shares outstanding

100M 0
Mar 18, 2022

10-K filing | 101.3M shares outstanding

100M 0
Nov 12, 2021

10-Q filing | 98.0M shares outstanding

98M 0
Nov 03, 2021

8-K filing: Compass Therapeutics, Inc. entered into an underwriting agreement for a public offering of 35,715,000 shares of common stock at $3.50 per share, with an option for the underwriters to purchase an additional 5,357,250 shares.

62M 0
Aug 16, 2021

10-Q filing | 61.7M shares outstanding

62M 0
Jul 09, 2021

S-3 filing: The company is offering shares of its common stock from time to time through B. Riley Securities acting as their agent or principal, having an aggregate offering price of up to $75,000,000.

62M 0
Jun 30, 2021

8-K filing: Compass Therapeutics consummated the merger with TRIGR Therapeutics on June 25, 2021, issuing 10,265,133 unregistered shares of Compass's common stock to TRIGR shareholders, with potential earnout payments up to $9 million tied to certain events.

51M 0
May 13, 2021

8-K filing: Compass Therapeutics, Inc. entered into a definitive merger agreement with TRIGR Therapeutics, Inc. to acquire all outstanding shares of TRIGR through a two-step merger structure. Consideration includes 10,265,154 shares of Compass' common stock and up to $9 million in earnout payments.

51M 0
Apr 30, 2021

10-Q filing | 51.3M shares outstanding

51M 0
Mar 05, 2021

10-K filing | 52.1M shares outstanding

52M 0
Mar 05, 2021

POS AM filing: This prospectus relates to the offering and resale by the selling stockholders identified herein of up to 52,112,143 shares of common stock, par value $0.0001 per share, of Compass Therapeutics, Inc.

52M 0
Nov 09, 2020

10-Q filing | 52.1M shares outstanding

52M 15M
Nov 09, 2020

S-1/A filing: Compass Therapeutics, Inc. is offering 9,000,000 shares of common stock in a public offering, with an expected price between $5.00 and $6.00 per share. The underwriters have an option to purchase an additional 1,350,000 shares.

61M 6.4M
Oct 19, 2020

S-1 filing: This is an S-1 filing for an initial public offering of common stock. The filing includes information on the company's executive compensation, risk factors, and summary financial data.

52M 5M
Sep 18, 2020

S-1/A filing: This S-1/A filing relates to the offering and resale by selling stockholders of up to 52,127,041 shares of common stock of Compass Therapeutics, Inc.

52M 5M
Aug 13, 2020

10-Q filing | 52.2M shares outstanding

52M 5M
Aug 11, 2020

S-1 filing: This prospectus relates to the offering and resale by the selling stockholders of up to 52,151,798 shares of common stock of Compass Therapeutics, Inc.

52M 5M
Jun 08, 2020

10-K filing | 5.0M shares outstanding

5M 0
Feb 14, 2020

10-Q filing | 5.0M shares outstanding

5M 0
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