For the Three Months
 Ended

For the Six Months
 Ended

June 28,
2026

June 29,
2025

June 28,
2026

June 29,
2025

(in thousands, except per share amounts)

(in thousands, except per share amounts)

Net income attributable to Teradyne for basic and diluted earnings per common share

$

374,533

$

78,372

$

773,442

$

177,269

Weighted average common shares-basic

156,470

159,967

156,440

160,734

Effect of dilutive potential common shares:

Restricted stock units

1,142

160

1,145

302

Stock options

81

2

77

3

Employee stock purchase plan

—

6

2

26

Dilutive potential common shares

1,223

168

1,224

331

Weighted average common shares-diluted

157,693

160,135

157,664

161,065

Earnings per common share attributable to Teradyne - basic

$

2.39

$

0.49

$

4.94

$

1.10

Earnings per common share attributable to Teradyne - diluted

$

2.38

$

0.49

$

4.91

$

1.10