ZENAS BIOPHARMA INC

Ticker: ZBIO CUSIP: 98937L105 Class: Common Stock

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

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

Q4 2025

Shares 18,350 Value ($000) $666 Avg Close $32.89 Range $18.33 - $44.60

Q3 2025

Shares 18,350 Value ($000) $407 Avg Close $16.28 Range $8.91 - $22.45

Q2 2025

Shares 16,360 Value ($000) $159 Avg Close $9.74 Range $6.11 - $12.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,350	$666	$32.89	$18.33 - $44.60
Q3 2025	18,350	$407	$16.28	$8.91 - $22.45
Q2 2025	16,360	$159	$9.74	$6.11 - $12.56