Greenwich LifeSciences, Inc. (GLSI) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: June 01, 2026

Risk Assessment Details

Potential Dilution: 181.45% of current shares
Recent Dilution: 6.98% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
14M
Potential Supply
25M
Additional shares possible
Splits
None
Past 2 years

Summary

GLSI currently has 13.5M outstanding shares. with significant dilution risk as 24.6M authorized shares could dilute existing holders by 181.4%. The company has minimally diluted shareholders by 6.98% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Jun 01, 2026

10-K filing | 13.5M shares outstanding

14M 25M
Nov 14, 2025

10-Q filing | 13.6M shares outstanding

14M 25M
May 20, 2025

10-Q filing | 13.2M shares outstanding

13M 25M
Apr 15, 2025

10-K filing | 13.0M shares outstanding

13M 25M
Nov 14, 2024

10-Q filing | 13.1M shares outstanding

13M 25M
Oct 07, 2024

S-3 filing: The company may offer and sell common stock, preferred stock, debt securities, warrants, or any combination thereof, with an aggregate initial offering price not exceeding $275,000,000, and is offering common stock from time to time through its sales agent H.C. Wainwright & Co., LLC up to $100,000,000.

13M 25M
Aug 14, 2024

10-Q filing | 12.9M shares outstanding

13M 17M
Jun 17, 2024

8-K filing: Greenwich LifeSciences, Inc. entered into a securities purchase agreement to issue and sell 174,825 shares of its common stock to its CEO, Snehal Patel, at $14.30 per share, with gross proceeds of approximately $2.5 million, for clinical development and working capital, expected to close on June 18, 2024. ($2.5M proceeds)

13M 17M
May 20, 2024

10-Q filing | 12.9M shares outstanding

13M 17M
Apr 15, 2024

10-K filing | 12.8M shares outstanding

13M 17M
Oct 19, 2023

10-Q filing | 12.8M shares outstanding

13M 17M
Aug 21, 2023

10-Q filing | 12.8M shares outstanding

13M 17M
May 22, 2023

10-Q filing | 12.8M shares outstanding

13M 17M
Mar 31, 2023

10-K filing | 12.8M shares outstanding

13M 17M
Nov 14, 2022

10-Q filing | 12.8M shares outstanding

13M 17M
Aug 15, 2022

10-Q filing | 12.8M shares outstanding

13M 17M
May 20, 2022

10-Q filing | 13.0M shares outstanding

13M 17M
Apr 01, 2022

S-3/A filing: The filing is an S-3/A form indicating a shelf registration for the potential offering of common stock, preferred stock, debt securities, and/or warrants, either individually or in combination, up to an aggregate initial offering price not exceeding $300,000,000.

13M 17M
Mar 25, 2022

S-3 filing: The company is filing an S-3 to register the offering of common stock, preferred stock, debt securities, warrants, rights to purchase common stock, preferred stock or debt securities, or any combination of the foregoing, either individually or as units comprised of one or more of the other securities, having an aggregate initial offering price not exceeding $300,000,000.

13M 16M
Mar 21, 2022

10-K filing | 13.0M shares outstanding

13M 2M
Nov 15, 2021

10-Q filing | 13.1M shares outstanding

13M 2M
Aug 13, 2021

10-Q filing | 13.0M shares outstanding

13M 2M
May 20, 2021

10-Q filing | 12.7M shares outstanding

13M 2M
Mar 31, 2021

10-K filing | 8.5M shares outstanding

8.5M 2M
Dec 22, 2020

8-K filing: Greenwich LifeSciences, Inc. closed an underwritten public offering of 660,000 shares of common stock at $40.00 per share on December 22, 2020, with gross proceeds of $26.4 million before deducting underwriting discounts and commissions. ($26.4M proceeds)

12M 2M
Dec 15, 2020

S-1 filing: Greenwich LifeSciences, Inc. is filing an S-1 to offer 470,085 shares of common stock at a public offering price of $46.80 per share. The underwriters have an option to purchase an additional 70,512 shares.

12M 2M
Nov 16, 2020

10-Q filing | 12.0M shares outstanding

12M 1.5M
Oct 01, 2020

8-K filing: The company completed its IPO and sold 1,260,870 shares of its common stock at $5.75 per share. Also, the company filed a second amended and restated certificate of incorporation and the second amended and restated bylaws in connection with the closing of the IPO.

N/A 1.5M
Sep 28, 2020

8-K filing: Greenwich LifeSciences, Inc. entered into an underwriting agreement with Aegis Capital Corp. to sell 1,260,870 shares of common stock at $5.75 per share in a firm commitment underwritten public offering. ($7.27M proceeds)

N/A 1.5M
Sep 10, 2020

S-1/A filing: This is an S-1/A filing for a proposed public offering of 1,450,000 shares of common stock, a resale of 1,685,394 shares of common stock, and warrants to purchase up to 8% of the shares sold in the offering.

N/A 1.5M
Sep 09, 2020

S-1/A filing: Initial public offering of shares of common stock. We are offering 1,260,870 shares of our common stock. We have registered an aggregate of 1,685,394 shares of our common stock for resale by certain selling stockholders by means of the Selling Stockholder Prospectus.

N/A 2.9M
Jun 26, 2020

S-1/A filing: The filing relates to the registration of resales of common stock issuable upon exercise of underwriter warrants.

N/A 2.7M
Jun 23, 2020

S-1/A filing: Greenwich LifeSciences, Inc. is offering 1,000,000 shares of common stock in an initial public offering, with an expected price between $7.50 and $8.50 per share. Additionally, certain selling stockholders are registering 1,685,394 shares for resale.

N/A 2.7M
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