Net Income (Loss) Per Share Attributable to Upstart Holdings, Inc. Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Net Income Per Share Attributable to Common Stockholders

For years in which the Company reports net losses, basic and diluted net loss per share attributable to Upstart Holdings, Inc.’s common stockholders are the same because potentially dilutive common shares are not assumed to have been issued if their effect is anti-dilutive.

	Year Ended December 31,
	2019		2020		2021
Numerator:
Net income (loss) attributable to Upstart Holdings, Inc. common stockholders	$	(466)	$	5,983	$	135,443
Less: noncumulative dividends to preferred stockholders	—		(5,983)		—
Net income (loss) attributable to common stockholders, basic	(466)		—		135,443
Add: adjustments to undistributed earnings to participating securities			—		—
Net income (loss) attributable to common stockholders, diluted	$	(466)	$	—	$	135,443
Denominator:
Weighted-average common shares outstanding used to calculate net income (loss) per share attributable to Upstart Holdings, Inc. common stockholders, basic	14,335,611		17,513,670		78,106,359
Weighted-average effect of dilutive securities	—		—		16,666,282
Weighted-average common shares outstanding used to calculate net income (loss) per share attributable to Upstart Holdings, Inc. common stockholders, diluted	14,335,611		17,513,670		94,772,641
Net income (loss) per share attributable to Upstart Holdings, Inc. common stockholders, basic	$	(0.03)	$	—	$	1.73
Net income (loss) per share attributable to Upstart Holdings, Inc. common stockholders, diluted	$	(0.03)	$	—	$	1.43

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following securities were excluded from the computation of diluted net income (loss) per share attributable to Upstart Holdings, Inc. common stockholders for the years presented, because including them would have been anti-dilutive. These amounts represent the number of instruments outstanding at the end of each respective year:

	Year Ended December 31,
	2019	2020	2021
Convertible preferred stock	47,349,577	—	—
Options to purchase common stock	16,502,206	19,600,223	461,157
Unvested RSUs	—	—	506,302
Purchase rights committed under the ESPP	—	—	—
Warrants to purchase convertible preferred stock	600,208	—	—
Convertible debt	319,669	—	2,318,078
Warrants to purchase common stock	—	75,000	—
Total	64,771,660	19,675,223	3,285,537