Form 144 - Report of proposed sale of securities:
SEC Accession No. 0000950170-25-109905
Filing Date
2025-08-18
Accepted
2025-08-18 20:30:58
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 2825
  Complete submission text file 0000950170-25-109905.txt   4534
Mailing Address 4800 N. SCOTTSDALE ROAD SUITE 2500 SCOTTSDALE AZ 85251
Business Address 4800 N. SCOTTSDALE ROAD SUITE 2500 SCOTTSDALE AZ 85251 602-767-2100
LifeStance Health Group, Inc. (Subject) CIK: 0001845257 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 001-40478 | Film No.: 251229414
SIC: 8000 Services-Health Services
(CF Office: 08 Industrial Applications and Services)

Mailing Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116
Business Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 (617) 824-1000
SUMMIT INVESTORS GE IX/VC IV (UK), L.P. (Reporting) CIK: 0001846709 (see all company filings)

EIN.: 981266222 | State of Incorp.: E9 | Fiscal Year End: 1231
Type: 144