ARCELLX INC

Ticker: ACLX CUSIP: 03940C100 Class: Common Stock

Brevan Howard Capital Management LP's Holding History (CIK: 0001512857)

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

Q4 2025

Shares 60,178 Value ($000) $3,924 Avg Close $79.78 Range $63.03 - $94.07

Q3 2025

Shares 3,805 Value ($000) $312 Avg Close $71.99 Range $63.13 - $83.08

Q2 2025

Shares 14,436 Value ($000) $951 Avg Close $62.26 Range $47.86 - $69.84

Q4 2024

Shares 6,079 Value ($000) $466 Avg Close $86.39 Range $73.33 - $107.37

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	60,178	$3,924	$79.78	$63.03 - $94.07
Q3 2025	3,805	$312	$71.99	$63.13 - $83.08
Q2 2025	14,436	$951	$62.26	$47.86 - $69.84
Q4 2024	6,079	$466	$86.39	$73.33 - $107.37