Prior to the IPO, as discussed in Note 1, the partnership interests of LifeStance TopCo included Redeemable Class A, Class A common and Class B units. The Class B Units were intended to be "profits interests" for U.S. federal income tax purposes. Prior to the IPO, each of the holders of partnership interests in LifeStance TopCo contributed its partnership interest to LifeStance Health Group in exchange for shares of common stock (including shares of common stock issued as restricted stock subject to vesting) of LifeStance Health Group, with no changes in relative equity holder rights, rank or value before or after this exchange. As a result, the LifeStance TopCo equity exchange of common units was considered equivalent to a stock split and requires retrospective treatment for net loss per share purposes. All share and per share information has been retroactively adjusted to reflect the equity exchange for all periods presented. Vested Class B Profits Interests Units

outstanding prior to the equity exchange were considered compensatory arrangements that were settled with shares of common stock at the time of the exchange and have been included as outstanding shares subsequent to that date.

The following table presents the calculation of basic and diluted net income/(loss) per share (“EPS”) for the Company’s common shares (on an as-converted basis):


	Successor
	Year Ended December 31, 2021			April 13 to December 31, 2020
Net loss available to common stockholders'/members'	$	(343,947	)	$	(13,125	)
Weighted-average shares used to compute basic and diluted net loss per share		327,523			302,335
Net loss per share, basic and diluted	$	(1.05	)	$	(0.04	)

The Company has issued potentially dilutive instruments in the form of restricted stock and the RSUs. The Company did not include any of these instruments in its calculation of diluted loss per share (on an as-converted basis) for the year ended December 31, 2021 (Successor) and for the period from April 13, 2020 to December 31, 2020 (Successor) because to include them would be anti-dilutive due to the Company’s net loss during the period. See Note 15 for the issued, vested and unvested Class B Profits Interests Units, restricted stock and RSUs.