Perceptive Advisors Llc

13F Holdings History for Arcellx, Inc. - COMMON STOCK (ACLX)

Symbol: ACLX on Nasdaq
Investment type: Equity / COMMON STOCK
Latest Disclosed Ownership: 2.48M shares
Security Ownership: 4.5%

Shares, Excluding Options vs Price

Value, Excluding Options

Perceptive Advisors LLC ownership in Arcellx, Inc. COMMON STOCK (ACLX)

2025-08-14 - Perceptive Advisors LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 2.48M shares of Arcellx, Inc. COMMON STOCK (ACLX). This represents 4.5% percent ownership of the company. In their previous filing dated 2025-05-15, PERCEPTIVE ADVISORS LLC had reported owning 2.93M shares, indicating a decrease of -15.3% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
Perceptive Advisors LLC	4.5%	-16%	$184M	2.48M	-448,478	-15.3%	$74.08	13G/A	6/30/2025	14 Aug 2025 16:20:23
Perceptive Advisors LLC	5.3%		$173M	2.93M			$59.15	13G/A	3/31/2025	15 May 2025 16:30:15

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	6.12%	-1.11%	$163M	2.48M	-448,478	-15.3%	$65.85	Q2 2025
3/31/2025	6.81%	-1.29%	$192M	2.93M	-552,410	-15.9%	$65.60	Q1 2025
12/31/2024	7.43%	-0.88%	$267M	3.48M	-409,781	-10.5%	$76.69	Q4 2024
9/30/2024	6.97%	0%	$325M	3.89M	-1,070	-0.03%	$83.51	Q3 2024
6/30/2024	5.18%	-0.04%	$215M	3.89M	-43,817	-1.11%	$55.19	Q2 2024
3/31/2024	4.82%	-0.95%	$274M	3.93M	-611,253	-13.4%	$69.55	Q1 2024
12/31/2023	5.64%	+1.07%	$252M	4.54M	+578,831	+14.6%	$55.50	Q4 2023
9/30/2023	4.75%	-0.06%	$142M	3.97M	-50,419	-1.26%	$35.88	Q3 2023
6/30/2023	3.68%	+0.16%	$127M	4.02M	+174,658	+4.55%	$31.62	Q2 2023
3/31/2023	3.49%	+1.13%	$118M	3.84M	+1,243,434	+47.9%	$30.81	Q1 2023
12/31/2022	2.26%	+0.12%	$80.5M	2.6M	+132,900	+5.39%	$30.98	Q4 2022
9/30/2022	1.34%	+0.72%	$46.3M	2.47M	+1,323,415	+116%	$18.77	Q3 2022
6/30/2022	0.65%	+0.65%	$20.6M	1.14M	+1,141,990	NEW	$18.08	Q2 2022

* 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.