SELLAS Life Sciences Group, Inc. (SLS) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: May 12, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 129.25% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
170M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

SLS currently has 172M outstanding shares. with minimal authorized share overhang for future dilution. The company has significantly diluted shareholders by 129.25% over the past 2 years, indicating aggressive capital raising.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
May 12, 2026

10-Q filing | 172.5M shares outstanding

170M 0
Mar 19, 2026

10-K filing | 179.6M shares outstanding

180M 0
Nov 12, 2025

10-Q filing | 142.4M shares outstanding

140M 0
Oct 27, 2025

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Warrant Inducement Agreement with holders of existing warrants to purchase shares of common stock, resulting in the exercise of warrants to purchase 22,363,714 shares of common stock for gross proceeds of approximately $31.0 million. ($31.0M proceeds)

100M 0
Oct 10, 2025

S-3 filing: This prospectus covers the offer and resale by the selling stockholders of up to an aggregate of 19,685,040 shares of common stock issuable upon the exercise of warrants to purchase shares of common stock.

100M 0
Sep 11, 2025

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Warrant Inducement Agreement with a holder to exercise 19,685,040 shares of Common Stock at $1.20 per share, resulting in gross proceeds of approximately $23.6 million, and issued new warrants to purchase up to 19,685,040 shares of Common Stock. ($23.6M proceeds)

100M 0
May 13, 2025

10-Q filing | 99.8M shares outstanding

100M 0
Mar 20, 2025

10-K filing | 90.8M shares outstanding

91M 0
Jan 29, 2025

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Securities Purchase Agreement to issue and sell 8,200,000 shares of common stock and 11,485,040 pre-funded warrants, along with common warrants to purchase up to 19,685,040 shares, in a registered direct offering for gross proceeds of approximately $25.0 million. ($25.0M proceeds)

68M 0
Nov 13, 2024

10-Q filing | 68.3M shares outstanding

68M 0
Aug 13, 2024

10-Q filing | 64.3M shares outstanding

64M 0
Aug 01, 2024

8-K filing: SELLAS Life Sciences Group, Inc. completed a registered direct offering on August 1, 2024, issuing 6,370,070 shares of common stock and 9,478,986 pre-funded warrants, along with common warrants to purchase up to 15,849,056 shares, for gross proceeds of approximately $21.0 million. ($21.0M proceeds)

58M 0
May 14, 2024

10-Q filing | 57.8M shares outstanding

58M 160M
Apr 29, 2024

S-3/A filing: This is an S-3/A filing related to a shelf registration, detailing terms for various securities, including potential convertibles to common stock, denominations, and payment provisions.

56M 160M
Mar 28, 2024

S-3 filing: Registration for resale of 13,029,316 shares of common stock by selling stockholders, issuable upon exercise of warrants.

56M 160M
Mar 28, 2024

S-3 filing: SELLAS Life Sciences Group files an S-3 form to offer shares of its common stock and preferred stock and debt securities for a total dollar amount of $200,000,000.

42M 180M
Mar 28, 2024

10-K filing | 56.3M shares outstanding

56M 160M
Mar 15, 2024

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Securities Purchase Agreement to issue and sell 11,000,000 shares of common stock at $1.535 per share and 2,029,316 pre-funded warrants at $1.5349 per warrant, with aggregate gross proceeds expected to be approximately $20.0 million. ($20.0M proceeds)

42M 0
Jan 08, 2024

8-K filing: SELLAS Life Sciences Group, Inc. completed an offering of 10,130,000 shares of common stock and 1,870,000 pre-funded warrants, along with common warrants to purchase up to 12,000,000 shares, for gross proceeds of approximately $9.0 million. ($9.0M proceeds)

42M 0
Nov 09, 2023

10-Q filing | 32.1M shares outstanding

32M 0
Oct 31, 2023

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Securities Purchase Agreement with an institutional investor to issue and sell 3,100,000 shares of common stock and 552,300 pre-funded warrants, along with common warrants to purchase up to 3,652,300 shares, at a combined offering price of $1.0952 per share/warrant, expecting gross proceeds of approximately $4.0 million. ($4.0M proceeds)

28M 0
Aug 10, 2023

10-Q filing | 28.3M shares outstanding

28M 0
May 11, 2023

10-Q filing | 28.3M shares outstanding

28M 0
Mar 16, 2023

10-K filing | 28.3M shares outstanding

28M 0
Mar 01, 2023

8-K filing: SELLAS Life Sciences Group, Inc. closed its underwritten offering of 7,220,217 shares of common stock and warrants to purchase up to 7,220,217 shares of common stock, resulting in net proceeds of approximately $18.5 million. ($18.5M proceeds)

21M 0
Nov 14, 2022

10-Q filing | 20.6M shares outstanding

21M 0
Aug 11, 2022

10-Q filing | 20.3M shares outstanding

20M 0
May 12, 2022

10-Q filing | 20.5M shares outstanding

21M 0
Mar 31, 2022

10-K filing | 15.5M shares outstanding

15M 3.9M
Nov 12, 2021

10-Q filing | 15.9M shares outstanding

16M 3.5M
Aug 12, 2021

10-Q filing | 15.3M shares outstanding

15M 4.1M
Jul 07, 2021

8-K filing: SELLAS Life Sciences Group, Inc. had approximately $32.0 million of cash and cash equivalents and 15,873,941 shares of common stock outstanding as of July 6, 2021, including 421,102 shares sold subsequent to June 1, 2021 at an average price of $13.15 per share for net proceeds of approximately $5.4 million. ($5.4M proceeds)

16M 3.5M
Jun 02, 2021

8-K filing: The company issued and sold 365,825 shares of its common stock under an "at-the-market" offering program for aggregate net sale proceeds of approximately $3.81 million, after deducting sales commissions since April 16, 2021. ($0.0M proceeds)

15M 4.3M
May 13, 2021

10-Q filing | 15.1M shares outstanding

15M 4.3M
Apr 16, 2021

S-3 filing: SELLAS Life Sciences Group, Inc. files an S-3 form to offer and sell up to an aggregate amount of $150,000,000 of any combination of common stock, preferred stock, and debt securities from time to time. Additionally, they will offer common stock up to $50,000,000 through an at-the-market offering.

14M 5.1M
Mar 23, 2021

10-K filing | 15.1M shares outstanding

15M 0
Dec 14, 2020

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Share Purchase Agreement to issue and sell 2,320,000 shares of common stock at $7.00 per share in a registered direct offering, and warrants to purchase 2,412,632 shares of Common Stock were exercised at a weighted average exercise price of $3.35 per share. ($24.3M proceeds)

9.5M 3.6M
Nov 13, 2020

10-Q filing | 9.5M shares outstanding

9.5M 3.6M
Aug 14, 2020

S-3 filing: SELLAS Life Sciences Group, Inc. is registering the resale of up to 5,488,156 shares of common stock by selling stockholders, including shares issuable upon exercise of warrants.

9.5M 3.6M
Aug 13, 2020

10-Q filing | 9.5M shares outstanding

9.5M 0
Aug 04, 2020

8-K filing: SELLAS Life Sciences Group, Inc. entered into a securities purchase agreement to sell 2,744,078 shares of common stock and warrants to purchase up to 2,744,078 shares of common stock at a price of $3.335 per share and warrant, with gross proceeds expected to be approximately $9.2 million. ($9.2M proceeds)

6.7M 820K
May 29, 2020

S-1 filing: This prospectus relates to the resale of up to 818,900 shares of our common stock issuable upon exercise of certain outstanding warrants issued by us in a private placement.

6.7M 820K
May 14, 2020

10-Q filing | 6.7M shares outstanding

6.7M 0
Mar 13, 2020

10-K filing | 6.7M shares outstanding

6.7M 0
Jan 10, 2020

8-K filing: SELLAS Life Sciences Group, Inc. entered into a Securities Purchase Agreement to issue and sell 1,189,000 shares of common stock at $3.9825 per share and 448,800 pre-funded warrants at $3.9725 per Pre-Funded Warrant, along with warrants exercisable for 818,900 shares of Common Stock at an exercise price of $3.93 per share in a concurrent private placement. ($6.52M proceeds)

N/A 0
Weekly Research

Get Weekly Super Stonk Alerts

Never miss a squeeze opportunity. Get our weekly analysis of high short interest stocks, AI-discovered gems, and dilution warnings delivered to your inbox.

No spam Unsubscribe anytime