ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

Quarry LP's Holding History (CIK: 0001965207)

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

Q3 2025

Shares 3,847 Value ($000) $36 Avg Close $9.32 Range $7.95 - $10.64

Q3 2024

Shares 1,448 Value ($000) $9 Avg Close $5.57 Range $4.62 - $6.92

Q1 2023

Shares 1,566 Value ($000) $25 Avg Close $16.92 Range $14.49 - $19.68

Q4 2022

Shares 704 Value ($000) $13 Avg Close $19.51 Range $17.59 - $22.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	3,847	$36	$9.32	$7.95 - $10.64
Q3 2024	1,448	$9	$5.57	$4.62 - $6.92
Q1 2023	1,566	$25	$16.92	$14.49 - $19.68
Q4 2022	704	$13	$19.51	$17.59 - $22.50