ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

Brevan Howard Capital Management LP's Holding History (CIK: 0001512857)

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

Q4 2025

Shares 121,014 Value ($000) $1,052 Avg Close $8.68 Range $7.11 - $10.75

Q3 2025

Shares 47,037 Value ($000) $441 Avg Close $9.32 Range $7.95 - $10.64

Q2 2025

Shares 55,951 Value ($000) $502 Avg Close $7.98 Range $6.93 - $9.17

Q3 2024

Shares 13,781 Value ($000) $82 Avg Close $5.57 Range $4.62 - $6.92

Q2 2024

Shares 135,172 Value ($000) $711 Avg Close $5.10 Range $4.34 - $5.87

Q4 2023

Shares 22,764 Value ($000) $167 Avg Close $6.59 Range $4.91 - $8.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	121,014	$1,052	$8.68	$7.11 - $10.75
Q3 2025	47,037	$441	$9.32	$7.95 - $10.64
Q2 2025	55,951	$502	$7.98	$6.93 - $9.17
Q3 2024	13,781	$82	$5.57	$4.62 - $6.92
Q2 2024	135,172	$711	$5.10	$4.34 - $5.87
Q4 2023	22,764	$167	$6.59	$4.91 - $8.56