Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000950170-25-025631
Filing Date
2025-02-24
Accepted
2025-02-24 16:15:07
Documents
1
Period of Report
2025-02-20

Document Format Files

Seq Description Document Type Size
1 4 ownership.html 4  
1 4 ownership.xml 4 13454
  Complete submission text file 0000950170-25-025631.txt   17906
Mailing Address 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116
Business Address 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116 617-585-2000
Third Rock Ventures V, L.P. (Reporting) CIK: 0001778071 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657167

Mailing Address 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116
Business Address 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116 617-585-2000
Third Rock Ventures VI, L.P. (Reporting) CIK: 0001931056 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657168

Mailing Address 201 BROOKLINE AVE SUITE 1401 BOSTON MA 02215
Business Address 201 BROOKLINE AVE SUITE 1401 BOSTON MA 02215 6175852000
Third Rock Ventures GP V, LP (Reporting) CIK: 0001977498 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657166

Mailing Address 201 BROOKLINE AVE SUITE 1401 BOSTON MA 02215
Business Address 201 BROOKLINE AVE SUITE 1401 BOSTON MA 02215 6175852000
Third Rock Ventures GP VI, L.P. (Reporting) CIK: 0001977499 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657164

Mailing Address 250 EAST GRAND AVENUE, SUITE 65 SOUTH SAN FRANCISCO CA 94080
Business Address 250 EAST GRAND AVENUE, SUITE 65 SOUTH SAN FRANCISCO CA 94080 650-338-3533
Septerna, Inc. (Issuer) CIK: 0001984086 (see all company filings)

EIN.: 843891440 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)

Mailing Address 201 BROOKLINE AVE. BOSTON MA 02215
Business Address 201 BROOKLINE AVE. BOSTON MA 02215 617-585-2000
TRV GP VI, LLC (Reporting) CIK: 0001990716 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657163

Mailing Address 201 BROOKLINE AVE. BOSTON MA 02215
Business Address 201 BROOKLINE AVE. BOSTON MA 02215 617-585-2000
TRV GP V, LLC (Reporting) CIK: 0001990717 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42382 | Film No.: 25657165