ADTRAN HOLDINGS INC

Ticker: ADTN CUSIP: 00486H105 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q4 2025
Shares 2,478,621 Value ($000) $21,539 Avg Close $8.68 Range $7.11 - $10.75
Q3 2025
Shares 2,736,430 Value ($000) $25,668 Avg Close $9.32 Range $7.95 - $10.64
Q2 2025
Shares 2,902,526 Value ($000) $26,036 Avg Close $7.98 Range $6.93 - $9.17
Q1 2025
Shares 3,139,103 Value ($000) $27,373 Avg Close $10.06 Range $8.30 - $12.44
Q4 2024
Shares 4,647,155 Value ($000) $38,711 Avg Close $7.38 Range $5.67 - $9.21
Q3 2024
Shares 4,532,169 Value ($000) $26,876 Avg Close $5.57 Range $4.62 - $6.92
Q2 2024
Shares 4,437,187 Value ($000) $23,340 Avg Close $5.10 Range $4.34 - $5.87
Q1 2024
Shares 4,456,067 Value ($000) $24,241 Avg Close $6.38 Range $5.19 - $7.66
Q4 2023
Shares 3,638,305 Value ($000) $26,705 Avg Close $6.59 Range $4.91 - $8.56
Q3 2023
Shares 2,405,839 Value ($000) $19,800 Avg Close $8.83 Range $6.92 - $10.84
Q2 2023
Shares 1,530,699 Value ($000) $16,118 Avg Close $9.75 Range $7.73 - $15.55