Basic net loss per share of Class A Common Stock is computed by dividing net loss attributable to Definitive Healthcare Corp. by the weighted-average number of shares of Class A Common Stock outstanding during the period, excluding unvested equity awards and subsidiary member units not exchanged. Diluted earnings per share of Class A Common Stock is calculated by dividing net income attributable to Definitive Healthcare Corp., adjusted for the assumed exchange of all potentially dilutive securities by the weighted-average number of shares of Class A Common Stock outstanding.

The following table sets forth reconciliation of the numerators and denominators used to compute basic and diluted net loss per share of Class A Common Stock for the years ended December 31, 2023, 2022, and 2021. The reconciliation for 2021 reflects only the period from September 15, 2021 to December 31, 2021, which represents the period wherein the Company had outstanding Class A Common Stock.


	Year Ended
(in thousands)	December 31, 2023			December 31, 2022			December 31, 2021
Numerator:
Net loss	$	(289,627	)	$	(24,179	)	$	(62,324	)
Less: Net loss attributable to Definitive OpCo before Reorganization Transactions		—			—			(34,068	)
Less: Net loss attributable to noncontrolling interests		(87,239	)		(16,957	)		(10,416	)
Net loss attributable to Definitive Healthcare Corp.	$	(202,388	)	$	(7,222	)	$	(17,840	)

The following table sets forth the computation of basic and diluted net loss per share of Class A Common Stock:


	Year Ended
(in thousands, except number of shares and per share amounts)	December 31, 2023			December 31, 2022			December 31, 2021
Basic net loss per share attributable to common stockholders
Numerator:
Allocation of net loss attributable to Definitive Healthcare Corp.	$	(202,388	)	$	(7,222	)	$	(17,840	)
Weighted average number of shares of Class A outstanding		112,764,537			101,114,105			91,916,151
Net loss per share, basic and diluted	$	(1.79	)	$	(0.07	)	$	(0.19	)

Shares of the Company's Class B Common Stock do not participate in the earnings or losses of Definitive Healthcare Corp. and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B Common Stock under the two-class method has not been presented.

The following table presents potentially dilutive securities which were excluded from the computation of diluted net loss per share for the periods presented because their effects on net loss per share would have been anti-dilutive:


	Year Ended
	December 31, 2023		December 31, 2022		December 31, 2021
Definitive OpCo units (vested and unvested)		39,762,700		50,433,101		58,244,627
Restricted stock units		6,828,490		3,563,387		2,100,250