ATARA BIOTHERAPEUTICS INC

Ticker: ATRA CUSIP: 046513206 Class: Common Stock

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2025

Shares 225,940 Value ($000) $4,087 Avg Close $14.93 Range $10.50 - $18.95

Q3 2025

Shares 203,438 Value ($000) $2,915 Avg Close $11.51 Range $7.54 - $14.90

Q2 2025

Shares 190,761 Value ($000) $1,473 Avg Close $7.30 Range $5.00 - $9.68

Q1 2025

Shares 190,761 Value ($000) $1,133 Avg Close $8.73 Range $5.40 - $18.70

Q4 2024

Shares 178,782 Value ($000) $2,380 Avg Close $10.54 Range $7.20 - $14.93

Q3 2024

Shares 180,715 Value ($000) $1,469 Avg Close $8.56 Range $6.50 - $12.98

Q2 2024

Shares 169,336 Value ($000) $1,439 Avg Close $15.04 Range $7.07 - $20.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	225,940	$4,087	$14.93	$10.50 - $18.95
Q3 2025	203,438	$2,915	$11.51	$7.54 - $14.90
Q2 2025	190,761	$1,473	$7.30	$5.00 - $9.68
Q1 2025	190,761	$1,133	$8.73	$5.40 - $18.70
Q4 2024	178,782	$2,380	$10.54	$7.20 - $14.93
Q3 2024	180,715	$1,469	$8.56	$6.50 - $12.98
Q2 2024	169,336	$1,439	$15.04	$7.07 - $20.82