ATARA BIOTHERAPEUTICS INC

Ticker: ATRA CUSIP: 046513206 Class: Common Stock

UBS Group AG's Holding History (CIK: 0001610520)

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

Q4 2025

Shares 1,397 Value ($000) $25 Avg Close $14.93 Range $10.50 - $18.95

Q3 2025

Shares 17,268 Value ($000) $247 Avg Close $11.51 Range $7.54 - $14.90

Q2 2025

Shares 8,385 Value ($000) $65 Avg Close $7.30 Range $5.00 - $9.68

Q1 2025

Shares 24,334 Value ($000) $145 Avg Close $8.73 Range $5.40 - $18.70

Q4 2024

Shares 834 Value ($000) $11 Avg Close $10.54 Range $7.20 - $14.93

Q3 2024

Shares 402 Value ($000) $3 Avg Close $8.56 Range $6.50 - $12.98

Q2 2024

Shares 403 Value ($000) $3 Avg Close $15.04 Range $7.07 - $20.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,397	$25	$14.93	$10.50 - $18.95
Q3 2025	17,268	$247	$11.51	$7.54 - $14.90
Q2 2025	8,385	$65	$7.30	$5.00 - $9.68
Q1 2025	24,334	$145	$8.73	$5.40 - $18.70
Q4 2024	834	$11	$10.54	$7.20 - $14.93
Q3 2024	402	$3	$8.56	$6.50 - $12.98
Q2 2024	403	$3	$15.04	$7.07 - $20.82