ARCELLX INC

Ticker: ACLX CUSIP: 03940C100 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025

Shares 3,414 Value ($000) $223 Avg Close $79.78 Range $63.03 - $94.07

Q4 2023

Shares 5,481 Value ($000) $0 Avg Close $45.11 Range $30.88 - $59.10

Q3 2023

Shares 9 Value ($000) $0 Avg Close $34.48 Range $30.74 - $37.73

Q4 2022

Shares 577 Value ($000) $0 Avg Close $22.94 Range $16.97 - $33.99

Q3 2022

Shares 3,849 Value ($000) $72 Avg Close $19.14 Range $15.63 - $23.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,414	$223	$79.78	$63.03 - $94.07
Q4 2023	5,481	$0	$45.11	$30.88 - $59.10
Q3 2023	9	$0	$34.48	$30.74 - $37.73
Q4 2022	577	$0	$22.94	$16.97 - $33.99
Q3 2022	3,849	$72	$19.14	$15.63 - $23.49