UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40478 LifeStance Health Group, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 86-1832801 (State or other jurisdiction of incorporation or organization) 4800 N. Scottsdale Road Suite 2500 Scottsdale, Arizona 85251 (Address of principal executive offices) (Zi ...