ATARA BIOTHERAPEUTICS INC

Ticker: ATRA CUSIP: 046513206 Class: Common Stock

STATE STREET CORP's Holding History (CIK: 0000093751)

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

Q4 2025

Shares 26,453 Value ($000) $479 Avg Close $14.93 Range $10.50 - $18.95

Q3 2025

Shares 25,253 Value ($000) $362 Avg Close $11.51 Range $7.54 - $14.90

Q2 2025

Shares 25,253 Value ($000) $195 Avg Close $7.30 Range $5.00 - $9.68

Q1 2025

Shares 25,253 Value ($000) $150 Avg Close $8.73 Range $5.40 - $18.70

Q4 2024

Shares 25,253 Value ($000) $336 Avg Close $10.54 Range $7.20 - $14.93

Q3 2024

Shares 22,353 Value ($000) $182 Avg Close $8.56 Range $6.50 - $12.98

Q2 2024

Shares 14,673 Value ($000) $125 Avg Close $15.04 Range $7.07 - $20.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,453	$479	$14.93	$10.50 - $18.95
Q3 2025	25,253	$362	$11.51	$7.54 - $14.90
Q2 2025	25,253	$195	$7.30	$5.00 - $9.68
Q1 2025	25,253	$150	$8.73	$5.40 - $18.70
Q4 2024	25,253	$336	$10.54	$7.20 - $14.93
Q3 2024	22,353	$182	$8.56	$6.50 - $12.98
Q2 2024	14,673	$125	$15.04	$7.07 - $20.82