Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001231919-25-000406
Filing Date
2025-11-03
Accepted
2025-11-03 19:08:19
Documents
1
Period of Report
2025-10-30

Document Format Files

Seq Description Document Type Size
1 form4-11042025_121111.html 4  
1 form4-11042025_121111.xml 4 15716
  Complete submission text file 0001231919-25-000406.txt   19904
Mailing Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116
Business Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116 (617) 425-9200
MPM BioVentures 2014, L.P. (Reporting) CIK: 0001609492 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251445807

Mailing Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116
Business Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116 (617) 425-9200
MPM BioVentures 2014 (B), L.P. (Reporting) CIK: 0001609493 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251445806

Mailing Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116
Business Address C/O MPM BIOIMPACT 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116 (617) 425-9200
MPM Asset Management Investors BV2014 LLC (Reporting) CIK: 0001609495 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251445803

Mailing Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02116
Business Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02116 617-425-9200
MPM BioVentures 2014 LLC (Reporting) CIK: 0001765021 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251445805

Mailing Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02116
Business Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02116 617-425-9200
MPM BioVentures 2014 GP LLC (Reporting) CIK: 0001765091 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251445804

Mailing Address 200 TALCOTT AVENUE 2ND FLOOR WATERTOWN MA 02472
Business Address 200 TALCOTT AVENUE 2ND FLOOR WATERTOWN MA 02472 617-952-0555
Werewolf Therapeutics, Inc. (Issuer) CIK: 0001785530 (see all company filings)

EIN.: 823523180 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)