Numerator:

Net loss attributable to AXT, Inc.

$

(1,906

)

$

(2,937

)

$

(17,712

)

$

(6,536

)

Less: Preferred stock dividends

(44

)

(44

)

(132

)

(132

)

Net loss available to common stockholders

$

(1,950

)

$

(2,981

)

$

(17,844

)

$

(6,668

)

Denominator:

Denominator for basic net loss per share - weighted-average common shares

43,842

43,157

43,701

43,079

Effect of dilutive securities:

Common stock options

—

Restricted stock awards

—

Denominator for dilutive net loss per common shares

43,842

43,157

43,701

43,079

Net loss attributable to AXT, Inc. per common share:

Basic

$

(0.04

)

$

(0.07

)

$

(0.41

)

$

(0.15

)

Diluted

$

(0.04

)

$

(0.07

)

$

(0.41

)

$

(0.15

)

Options excluded from diluted net loss per share as the impact is anti-dilutive

1,133

1,186

1,133

1,186

Restricted stock excluded from diluted net loss per share as the impact is anti-dilutive

2,325

1,518

2,325

1,518