v3.25.3

INCOME (LOSS) PER SHARE - Basic and Diluted Loss Per Share Calculation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Numerator:
Net income (loss) attributable to common stockholders - basic	$ (7,280)	$ (52,956)	$ 110,475	$ (141,327)
Net income (loss) attributable to common stockholders - diluted	$ (7,280)	$ (52,956)	$ 110,475	$ (141,327)
Denominator:
Weighted-average common stock outstanding - basic (in shares)	40,623,364	37,590,727	40,598,777	36,463,906
Dilutive effect of options and awards granted under the employee stock purchase plan (in shares)	0	0	603,594	0
Weighted-average shares of common stock outstanding used to compute diluted net loss (in shares)	40,623,364	37,590,727	41,202,371	36,463,906
Net income (loss) per share of common stock -Basic (in USD per share)	$ (0.18)	$ (1.41)	$ 2.72	$ (3.88)
Net income (loss) per share of common stock - Diluted (in USD per share)	$ (0.18)	$ (1.41)	$ 2.68	$ (3.88)
Effect of potentially dilutive stock options
Denominator:
Dilutive effect of options and awards granted under the employee stock purchase plan (in shares)	0	0	424,342	0
Employee stock purchase plan shares
Denominator:
Dilutive effect of options and awards granted under the employee stock purchase plan (in shares)	0	0	0	0
RSU awards
Denominator:
Dilutive effect of options and awards granted under the employee stock purchase plan (in shares)	0	0	179,252	0

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Keros Therapeutics, Inc. 10-Q