ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 421,848 Value ($000) $3,666 Avg Close $8.68 Range $7.11 - $10.75

Q1 2023

Shares 26,847 Value ($000) $426 Avg Close $16.92 Range $14.49 - $19.68

Q4 2022

Shares 120,669 Value ($000) $2,267 Avg Close $19.51 Range $17.59 - $22.50

Q3 2022

Shares 71,479 Value ($000) $1,399 Avg Close $21.11 Range $16.78 - $24.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	421,848	$3,666	$8.68	$7.11 - $10.75
Q1 2023	26,847	$426	$16.92	$14.49 - $19.68
Q4 2022	120,669	$2,267	$19.51	$17.59 - $22.50
Q3 2022	71,479	$1,399	$21.11	$16.78 - $24.69