Darren M. Black - Jun 10, 2021 Form 3 Insider Report for LifeStance Health Group, Inc. (LFST)

Role: Director, 10%+ Owner
Signature: Robin W. Devereux, POA for Darren M. Black
Stock symbol: LFST
Transactions as of: Jun 10, 2021
Transactions value $: $0
Form type: 3
Date filed: 6/10/2021, 09:03 PM
Next filing: Jun 16, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	LFST	Common Stock						48.2M	Jun 10, 2021	See Footnotes.	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents 29,542,786 shares held by Summit Partners Growth Equity Fund IX-A, L.P., 18,446,106 shares held by Summit Partners Growth Equity Fund IX-B, L.P., 206,219 shares held by Summit Investors GE IX/VC IV, LLC, 27,568 shares held by Summit Partners Entrepreneur Advisors Fund II, L.P., and 21,572 shares held by Summit Investors GE IX/VC IV (UK), LP.
F2	Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the general partner of Summit Partners L.P., which is the manager of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P.
F3	Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to the Issuer. Summit Partners, L.P., through a three-person investment committee, currently composed of Peter Y. Chung, Mark A. deLaar and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. deLaar and Dr. Frances disclaim disclaims beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein.

Remarks:

Exhibit 24 - Power of Attorney