144 0001864881 XXXXXXXX LIVE 0001845257 LifeStance Health Group, Inc. 001-40478 4800 N. SCOTTSDALE ROAD SUITE 2500 SCOTTSDALE AZ 85251 602-767-2100 Bessler Robert Director Common Stock Fidelity Brokerage Services LLC

245 Summer Street Boston MA 02110

62147 438074.20 389783210 04/24/2026 NASDAQ Common 06/01/2017 Private Placement Vitthal gift Trust initially acquired shares then transferred to Vitthal LLC N 31073 06/01/2017 n/a Common 06/01/2017 Private Placement Shama gift Trust initially acquired shares then transferred to Shama LLC N 31074 06/01/2017 n/a N Robert Bessler C/O LifeStance Health Group, Inc.

4800 N. SCOTTSDALE ROAD Scottsdale AZ 85251

Common Stock 04/21/2026 5101 35749.48 Robert Bessler C/O LifeStance Health Group, Inc.

4800 N. SCOTTSDALE ROAD Scottsdale AZ 85251

Common Stock 04/23/2026 7752 54267.10 34,950 shares are being sold from SHAMA LLC/ Michele Marie Cannon and 34,949 shares sold from Vitthal LLC/ Robert Bessler 04/24/2026 12/16/2025 /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert Bessler