XOMA CORP DEL

Ticker: XOMA CUSIP: 98419J206 Class: Common Stock

Costello Asset Management, INC's Holding History (CIK: 0001760145)

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

Q4 2025

Shares 600 Value ($000) $16 Avg Close $32.18 Range $24.81 - $39.92

Q3 2025

Shares 600 Value ($000) $23 Avg Close $31.06 Range $24.08 - $38.75

Q2 2025

Shares 600 Value ($000) $15 Avg Close $23.95 Range $18.35 - $28.20

Q1 2025

Shares 600 Value ($000) $12 Avg Close $24.08 Range $19.79 - $29.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	600	$16	$32.18	$24.81 - $39.92
Q3 2025	600	$23	$31.06	$24.08 - $38.75
Q2 2025	600	$15	$23.95	$18.35 - $28.20
Q1 2025	600	$12	$24.08	$19.79 - $29.02