Jill Carroll - Mar 21, 2024 Form 4 Insider Report for Arcellx, Inc. (ACLX)

Role: Director
Signature: /s/ Sasha Keough, attorney-in-fact for Jill Carroll
Stock symbol: ACLX
Transactions as of: Mar 21, 2024
Transactions value $: -$35,575,755
Form type: 4
Date filed: 3/25/2024, 05:30 PM
Previous filing: Dec 18, 2023
Next filing: Jun 6, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACLX	Common Stock	Sale	-$35.6M	-504K	-25.42%	$70.55	1.48M	Mar 21, 2024	See Note 1	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The securities are directly held by SR One Capital Fund I Aggregator, LP ("SR One Fund I Aggregator"). SR One Capital Partners I, LP ("SR One Partners I") serves as the general partner of SR One Fund I Aggregator. The Reporting Person is a partner of SR One Capital Management, LP, an entity affiliated with SR One Fund I Aggregator, and a limited partner of SR One Partners I. The Reporting Person disclaims beneficial ownership of these securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

Content

The securities are directly held by SR One Capital Fund I Aggregator, LP ("SR One Fund I Aggregator"). SR One Capital Partners I, LP ("SR One Partners I") serves as the general partner of SR One Fund I Aggregator. The Reporting Person is a partner of SR One Capital Management, LP, an entity affiliated with SR One Fund I Aggregator, and a limited partner of SR One Partners I. The Reporting Person disclaims beneficial ownership of these securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.