Adaptimmune Therapeutics PLC (ADAP) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: October 28, 2025

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 1.94% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
1.5B
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

ADAP currently has 1.54B outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 1.94% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Oct 28, 2025

POS AM filing: This POS AM filing from 2025-10-28 relates to securities registered but unsold or unissued from a previous S-3 filing (File No. 333-286639) on 2025-04-18, covering an indeterminate number of American Depositary Shares, Warrants, Units, or any combination, with an aggregate initial public offering price not to exceed $400 million.

1.5B 0
May 13, 2025

10-Q filing | 1542.2M shares outstanding

1.5B 1.3B
Apr 18, 2025

S-3 filing: The company is filing an S-3 to offer a combination of securities, including American Depositary Shares, up to an aggregate amount of $400,000,000 and ADSs having an aggregate offering price of up to $200,000,000 through an at-the-market offering.

1.5B 1.4B
Mar 24, 2025

10-K filing | 1513.8M shares outstanding

1.5B 0
Nov 13, 2024

10-Q filing | 1534.6M shares outstanding

1.5B 0
Aug 12, 2024

10-Q filing | 1533.5M shares outstanding

1.5B 0
May 15, 2024

10-Q filing | 1451.2M shares outstanding

1.5B 0
Mar 06, 2024

10-K filing | 1363.0M shares outstanding

1.4B 0
Nov 08, 2023

10-Q filing | 1357.8M shares outstanding

1.4B 0
Aug 09, 2023

10-Q filing | 1351.8M shares outstanding

1.4B 0
May 12, 2023

10-Q filing | 991.3M shares outstanding

990M 140M
Mar 06, 2023

10-K filing | 967.2M shares outstanding

970M 170M
Nov 08, 2022

10-Q filing | 980.8M shares outstanding

980M 150M
Aug 04, 2022

10-Q filing | 962.8M shares outstanding

960M 170M
May 09, 2022

10-Q filing | 940.0M shares outstanding

940M 190M
Apr 21, 2022

S-3/A filing: The company may offer any combination of securities described in the prospectus, up to an aggregate amount of $400,000,000, including American Depositary Shares representing Ordinary Shares with an aggregate offering price of up to $200,000,000 through an at-the-market offering.

930M 200M
Apr 08, 2022

S-3 filing: The company intends to offer ADSs, through Cowen, acting as sales agent, for an aggregate offering price of up to $200,000,000 in an at the market offering. The company intends to use the net proceeds for general corporate purposes.

930M 0
Mar 14, 2022

10-K filing | 934.8M shares outstanding

930M 0
Nov 04, 2021

10-Q filing | 937.0M shares outstanding

940M 0
Aug 09, 2021

10-Q filing | 936.2M shares outstanding

940M 0
May 06, 2021

10-Q filing | 932.8M shares outstanding

930M 0
Feb 25, 2021

10-K filing | 928.8M shares outstanding

930M 0
Nov 05, 2020

10-Q filing | 928.5M shares outstanding

930M 0
Aug 06, 2020

10-Q filing | 927.7M shares outstanding

930M 0
Jun 02, 2020

8-K filing: Adaptimmune Therapeutics plc entered into an underwriting agreement to issue and sell 20,500,000 American Depositary Shares (ADSs) at a public offering price of $11.00 per ADS, with the offering expected to close on June 4, 2020. ($225.5M proceeds)

780M 0
May 14, 2020

10-Q filing | 780.5M shares outstanding

780M 0
Feb 27, 2020

10-K filing | 631.0M shares outstanding

630M 0
Feb 07, 2020

8-K filing: Adaptimmune Therapeutics plc announced that the underwriters of its previously announced public offering exercised their option to purchase an additional 3,150,000 ADSs at $4.00 per ADS, which closed on February 7, 2020. ($12.6M proceeds)

N/A 0
Jan 22, 2020

8-K filing: Adaptimmune Therapeutics plc entered into an underwriting agreement to issue and sell 21,000,000 American Depositary Shares (ADSs) at a price of $4.00 per ADS, with the offering expected to close on January 24, 2020. ($84.0M proceeds)

N/A 0
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