ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

Polymer Capital Management (US) LLC's Holding History (CIK: 0001973324)

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

Q4 2025

Shares 10,363 Value ($000) $90 Avg Close $8.68 Range $7.11 - $10.75

Q3 2025

Shares 36,840 Value ($000) $346 Avg Close $9.32 Range $7.95 - $10.64

Q2 2025

Shares 24,540 Value ($000) $220 Avg Close $7.98 Range $6.93 - $9.17

Q1 2025

Shares 32,051 Value ($000) $279 Avg Close $10.06 Range $8.30 - $12.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,363	$90	$8.68	$7.11 - $10.75
Q3 2025	36,840	$346	$9.32	$7.95 - $10.64
Q2 2025	24,540	$220	$7.98	$6.93 - $9.17
Q1 2025	32,051	$279	$10.06	$8.30 - $12.44