Company: KROS
Filing Date: 2025-05-06
Form Type: 10-Q
Source: 0001664710-25-000046
Chunk: 125

Company: Keros Therapeutics, Inc.
Filing Date: 2025-05-06
Form: 10-Q
Item: Item 1
Chunk 125
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$5,265 $3,902 General and administrative3,598 4,168 Total stock-based compensation expense$8,863 $8,070 

8. INCOME (LOSS) PER SHARE

Basic and diluted income (loss) per share of common stock are calculated as follows (in thousands, except share and per share data):THREE MONTHS ENDED MARCH 31,20252024Numerator:Net income (loss) attributable to common stockholders - basic and diluted$148,451 $(43,114)Denominator:Weighted-average shares of common stock outstanding - basic40,559,355 35,685,422 Effect of potentially dilutive stock options460,730 — Effect of potentially dilutive employee stock purchase plan shares914 — Effect of potentially dilutive restricted stock units326 — Total potentially dilutive securities461,970 — Weighted-average shares of common stock outstanding used to compute diluted net loss41,021,325 35,685,422 Net income (loss) per share of common stockBasic$3.66 $(1.21)Diluted$3.62 $(1.21)The Company excluded the following from the computation of diluted net income (loss) per share attributable to common stockholders as of March 31, 2025 and 2024 because including them would have had an anti-dilutive effect: 

14

MARCH 31,2025MARCH 31,2024Restricted stock unit awards882,775 — Options to purchase common stock4,869,232 5,218,405 Employee stock purchase plan shares42,086 — Total5,794,093 5,218,405 

9. INCOME TAXES

The Company calculates income taxes at each interim reporting period based on the estimated annual effective tax rate for the full year, adjusted for any discrete events which are recorded in the period they occur. Cumulative adjustments to the income tax provision are recorded in the interim reporting period in which a change in the estimated annual effective tax rate is determined. The Company’s income tax provision and effective tax rate are presented below (income tax provision in thousands):THREE MONTHS ENDED MARCH 31,20252024Income tax provision10,043 — Effective tax rate6.3 %— %The increase in the income tax provision and the effective tax rate for the three months ended March