ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

Select Equity Group, L.P.'s Holding History (CIK: 0001592643)

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

Q3 2023

Shares 295,868 Value ($000) $2,435 Avg Close $8.83 Range $6.92 - $10.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	295,868	$2,435	$8.83	$6.92 - $10.84