Three Months Ended

Six Months Ended

June 30,

(In thousands, except per share amounts)

2026

2025

2026

2025

Numerator

Net loss attributable to ADTRAN Holdings, Inc.

$

(10,905

)

$

(20,531

)

$

(12,226

)

$

(31,798

)

Effect of redemption of RNCI

584

1,494

885

1,491

Net loss attributable to ADTRAN Holdings, Inc. common stockholders

$

(10,321

)

$

(19,037

)

$

(11,341

)

$

(30,307

)

Denominator

Weighted average number of shares – basic

80,948

79,748

80,639

79,642

Weighted average number of shares – diluted

80,948

79,748

80,639

79,642

Loss per share attributable to ADTRAN Holdings, Inc. – basic

$

(0.13

)

$

(0.24

)

$

(0.14

)

$

(0.38

)

Loss per share attributable to ADTRAN Holdings, Inc. – diluted

$

(0.13

)

$

(0.24

)

$

(0.14

)

$

(0.38

)