X0306 4 2022-09-30 0 0001845257 LifeStance Health Group, Inc. LFST 0001864233 Mullins Kevin Michael C/O LIFESTANCE HEALTH GROUP, INC. 4800 N. SCOTTSDALE ROAD, SUITE 6000 SCOTTSDALE AZ 85251 0 1 0 0 Chief Development Officer Common Stock 2022-09-30 4 S 0 82520 7.03 D 5584540 D The reported transactions were effected pursuant to a Rule 10b5-1 trading plan. The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.20 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. By: /s/ Ryan Pardo, Attorney-in-Fact 2022-10-03