ARCELLX INC

Ticker: ACLX CUSIP: 03940C100 Class: Common Stock

FRED ALGER MANAGEMENT, LLC's Holding History (CIK: 0000003520)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 11,895 Value ($000) $977 Avg Close $71.99 Range $63.13 - $83.08

Q1 2023

Shares 14,374 Value ($000) $443 Avg Close $30.34 Range $26.32 - $35.26

Q4 2022

Shares 18,433 Value ($000) $571 Avg Close $22.94 Range $16.97 - $33.99

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	11,895	$977	$71.99	$63.13 - $83.08
Q1 2023	14,374	$443	$30.34	$26.32 - $35.26
Q4 2022	18,433	$571	$22.94	$16.97 - $33.99