0001845257 2026-09-09 2026-09-09 0001845257 1 2026-09-09 2026-09-09 iso4217:USD pure shares S-3 424B7 EX-FILING FEES 333-279585 0001845257 LifeStance Health Group, Inc. N/A N/A S-3 LifeStance Health Group, Inc. false Equity Common Stock, par value $0.01 per share true 22250000 12.69 282352500.00 0.0001381 38992.89 282352500.00 38992.89 0.00 0.00 38992.89 (1) Pursuant to Rule 416 of the Securities Act of 1933, as amended (the "Securities Act"), the registration statement on Form S-3ASR (Registration No. 333-279585) also covers any additional common shares which become issuable in connection with any stock dividend, stock split, recapitalization or other similar transactions with respect to the securities being registered pursuant to that registration statement. (2) Estimated solely for purposes of calculating the registration fee pursuant to Rule 457(c) of the Securities Act, based upon the average of the high and low prices of the registrant's common stock as reported on the Nasdaq Global Select Market on September 8, 2026. (3) The registration fee is calculated in accordance with Rule 457(r) of the Securities Act and represents deferred payment of the registration fees in connection with the Registrant's registration statement on Form S-3ASR (Registration No. 333-279585) paid with the filing of this prospectus supplement. 282352500.00 true