Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001231919-25-000373
Filing Date
2025-10-29
Accepted
2025-10-29 19:21:10
Documents
1
Period of Report
2025-10-27

Document Format Files

Seq Description Document Type Size
1 form4-10292025_111002.html 4  
1 form4-10292025_111002.xml 4 17870
  Complete submission text file 0001231919-25-000373.txt   23125
Mailing Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02116
Business Address
GADICKE ANSBERT (Reporting) CIK: 0001134655 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431631

Mailing Address 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116
Business Address 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116 6174259200
MPM ASSET MANAGEMENT LLC (Reporting) CIK: 0001263048 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431625

Mailing Address 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116
Business Address 399 BOYLSTON STREET, SUITE 1100 BOSTON MA 02116 6174259200
MPM BioImpact LLC (Reporting) CIK: 0001687078 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431627

Mailing Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02142
Business Address 399 BOYLSTON STREET SUITE 1100 BOSTON MA 02142 617-425-9200
UBS Oncology Impact Fund L.P. (Reporting) CIK: 0001691428 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431629

Mailing Address 450 KENDALL STREET CAMBRIDGE MA 02142
Business Address 450 KENDALL STREET CAMBRIDGE MA 02142 617-425-9200
MPM ONCOLOGY INNOVATIONS FUND LP (Reporting) CIK: 0001719960 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431630

Mailing Address 450 KENDALL STREET CAMBRIDGE MA 02142
Business Address 450 KENDALL STREET CAMBRIDGE MA 02142 6174259200
Oncology Impact Fund (Cayman) Management L.P. (Reporting) CIK: 0001721036 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431628

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)

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 Oncology Innovations Fund GP LLC (Reporting) CIK: 0001857903 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-40366 | Film No.: 251431626