ARCELLX INC

Ticker: ACLX CUSIP: 03940C100 Class: Common Stock

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2025

Shares 40,791 Value ($000) $2,660 Avg Close $79.78 Range $63.03 - $94.07

Q3 2025

Shares 46,327 Value ($000) $3,803 Avg Close $71.99 Range $63.13 - $83.08

Q2 2025

Shares 48,155 Value ($000) $3,171 Avg Close $62.26 Range $47.86 - $69.84

Q1 2025

Shares 51,295 Value ($000) $3,365 Avg Close $67.74 Range $57.17 - $81.00

Q4 2024

Shares 51,250 Value ($000) $3,930 Avg Close $86.39 Range $73.33 - $107.37

Q3 2024

Shares 57,431 Value ($000) $4,796 Avg Close $66.59 Range $49.00 - $88.66

Q2 2024

Shares 55,811 Value ($000) $3,080 Avg Close $54.36 Range $47.88 - $69.19

Q1 2024

Shares 39,580 Value ($000) $2,753 Avg Close $63.42 Range $51.37 - $75.10

Q4 2023

Shares 37,000 Value ($000) $2,054 Avg Close $45.11 Range $30.88 - $59.10

Q3 2023

Shares 36,210 Value ($000) $1,299 Avg Close $34.48 Range $30.74 - $37.73

Q2 2023

Shares 36,210 Value ($000) $1,145 Avg Close $38.23 Range $27.28 - $48.91

Q1 2023

Shares 26,700 Value ($000) $823 Avg Close $30.34 Range $26.32 - $35.26

Q4 2022

Shares 26,700 Value ($000) $827 Avg Close $22.94 Range $16.97 - $33.99

Q3 2022

Shares 21,500 Value ($000) $404 Avg Close $19.14 Range $15.63 - $23.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	40,791	$2,660	$79.78	$63.03 - $94.07
Q3 2025	46,327	$3,803	$71.99	$63.13 - $83.08
Q2 2025	48,155	$3,171	$62.26	$47.86 - $69.84
Q1 2025	51,295	$3,365	$67.74	$57.17 - $81.00
Q4 2024	51,250	$3,930	$86.39	$73.33 - $107.37
Q3 2024	57,431	$4,796	$66.59	$49.00 - $88.66
Q2 2024	55,811	$3,080	$54.36	$47.88 - $69.19
Q1 2024	39,580	$2,753	$63.42	$51.37 - $75.10
Q4 2023	37,000	$2,054	$45.11	$30.88 - $59.10
Q3 2023	36,210	$1,299	$34.48	$30.74 - $37.73
Q2 2023	36,210	$1,145	$38.23	$27.28 - $48.91
Q1 2023	26,700	$823	$30.34	$26.32 - $35.26
Q4 2022	26,700	$827	$22.94	$16.97 - $33.99
Q3 2022	21,500	$404	$19.14	$15.63 - $23.49