ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 284,502 Value ($000) $2,472 Avg Close $8.68 Range $7.11 - $10.75

Q2 2025

Shares 30,577 Value ($000) $274 Avg Close $7.98 Range $6.93 - $9.17

Q1 2025

Shares 426,167 Value ($000) $3,716 Avg Close $10.06 Range $8.30 - $12.44

Q4 2024

Shares 731,745 Value ($000) $6,095 Avg Close $7.38 Range $5.67 - $9.21

Q2 2024

Shares 12,957 Value ($000) $0 Avg Close $5.10 Range $4.34 - $5.87

Q3 2022

Shares 11,443 Value ($000) $228 Avg Close $21.11 Range $16.78 - $24.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	284,502	$2,472	$8.68	$7.11 - $10.75
Q2 2025	30,577	$274	$7.98	$6.93 - $9.17
Q1 2025	426,167	$3,716	$10.06	$8.30 - $12.44
Q4 2024	731,745	$6,095	$7.38	$5.67 - $9.21
Q2 2024	12,957	$0	$5.10	$4.34 - $5.87
Q3 2022	11,443	$228	$21.11	$16.78 - $24.69