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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001179110-21-006562
Filing Date
2021-06-10
Accepted
2021-06-10 21:01:25
Documents
2
Period of Report
2021-06-10

Document Format Files

Seq Description Document Type Size
1 FORM 3 - edgar.html 3  
1 FORM 3 - edgar.xml 3 10685
2 ex24devereux032017.htm EX-24 313585
  Complete submission text file 0001179110-21-006562.txt   328663
Mailing Address 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116
Business Address 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116 6178241094
SUMMIT PARTNERS L P (Reporting) CIK: 0000830588 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009729

Mailing Address C/O SUMMIT PARTNERS 22 BERKELEY STREET, 18TH FLOOR BOSTON MA 02110
Business Address C/O SUMMIT PARTNERS 22 BERKELEY STREET, 18TH FLOOR BOSTON MA 02110 617 824-1000
Summit Investors Management, LLC (Reporting) CIK: 0001507545 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009725

Mailing Address 222 BERKLEY STREET 18TH FLOOR BOSTON MA 02116
Business Address 222 BERKLEY STREET 18TH FLOOR BOSTON MA 02116 617-824-1000
SUMMIT MASTER COMPANY, LLC (Reporting) CIK: 0001627278 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009728

Mailing Address 4800 N. SCOTTSDALE ROAD SUITE 6000 SCOTTSDALE AZ 85251
Business Address 4800 N. SCOTTSDALE ROAD SUITE 6000 SCOTTSDALE AZ 85251 425-279-8500
LifeStance Health Group, Inc. (Issuer) CIK: 0001845257 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE
SIC: 8000 Services-Health 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 PARTNERS GE IX, LLC (Reporting) CIK: 0001846688 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009726

Mailing Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116
Business Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 (617) 824-1000
SUMMIT PARTNERS GE IX, L.P. (Reporting) CIK: 0001846731 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009727

Mailing Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116
Business Address 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 (617) 824-1000
SUMMIT PARTNERS ENTREPRENEUR ADVISORS GP II, LLC (Reporting) CIK: 0001846778 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40478 | Film No.: 211009724