ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q4 2025

Shares 54,840 Value ($000) $477 Avg Close $8.68 Range $7.11 - $10.75

Q3 2025

Shares 582,490 Value ($000) $5,464 Avg Close $9.32 Range $7.95 - $10.64

Q2 2025

Shares 200,320 Value ($000) $1,797 Avg Close $7.98 Range $6.93 - $9.17

Q1 2025

Shares 36,093 Value ($000) $315 Avg Close $10.06 Range $8.30 - $12.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	54,840	$477	$8.68	$7.11 - $10.75
Q3 2025	582,490	$5,464	$9.32	$7.95 - $10.64
Q2 2025	200,320	$1,797	$7.98	$6.93 - $9.17
Q1 2025	36,093	$315	$10.06	$8.30 - $12.44