EcoR1 Capital, LLC

13F Holdings History for Adaptimmune Therapeutics PLC - Ordinary Shares (ADAP)

Symbol: ADAP on Nasdaq
Investment type: Equity / Ordinary Shares
Latest Disclosed Ownership: 66M shares
Security Ownership: 4.2%

Shares, Excluding Options vs Price

Value, Excluding Options

EcoR1 Capital, LLC ownership in Adaptimmune Therapeutics PLC Ordinary Shares (ADAP)

2025-08-19 - EcoR1 Capital, LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 66M shares of Adaptimmune Therapeutics PLC Ordinary Shares (ADAP). This represents 4.2% percent ownership of the company.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
EcoR1 Capital, LLC	4.2%		$3.96M	66M			$0.06	13G/A	8/15/2025	19 Aug 2025 18:32:39

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	0.39%		$6.57M	27.4M			$0.24	Q2 2025
3/31/2025	0.32%		$5.4M	27.4M			$0.20	Q1 2025
12/31/2024	0.59%		$14.8M	27.4M			$0.54	Q4 2024
9/30/2024	0.89%		$26M	27.4M			$0.95	Q3 2024
6/30/2024	0.82%		$26.7M	27.4M			$0.97	Q2 2024
3/31/2024	1.1%	+1.13%	$43.3M	27.4M	+27,404,070	NEW	$1.58	Q1 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.