ARCELLX INC

Ticker: ACLX CUSIP: 03940C100 Class: Common Stock

Capital World Investors's Holding History (CIK: 0001422849)

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

Q3 2025

Shares 783,011 Value ($000) $64,285 Avg Close $71.99 Range $63.13 - $83.08

Q2 2025

Shares 783,011 Value ($000) $51,561 Avg Close $62.26 Range $47.86 - $69.84

Q1 2025

Shares 709,374 Value ($000) $46,535 Avg Close $67.74 Range $57.17 - $81.00

Q4 2024

Shares 252,878 Value ($000) $19,393 Avg Close $86.39 Range $73.33 - $107.37

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	783,011	$64,285	$71.99	$63.13 - $83.08
Q2 2025	783,011	$51,561	$62.26	$47.86 - $69.84
Q1 2025	709,374	$46,535	$67.74	$57.17 - $81.00
Q4 2024	252,878	$19,393	$86.39	$73.33 - $107.37