Werewolf Therapeutics, Inc.

Historical 13F Holders

Symbol
HOWL
CUSIP
95075A107
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 95075A107 since 12/18/2024, newest first.

Filer % of Class Filed
Moll Peter 13G 5.2% 9/21/2026
Event 9/18/2026
RA Capital Management, L.P. 13D/A Amendment 12
4.1% 7/2/2026
Event 6/30/2026
RA Capital Management, L.P. 13D/A Amendment 11
6.0% 6/26/2026
Event 6/24/2026
RA Capital Management, L.P. 13D/A Amendment 10
7.5% 6/22/2026
Event 6/17/2026
RA Capital Management, L.P. 13D/A Amendment 9
10.6% 6/15/2026
Event 6/11/2026
RA Capital Management, L.P. 13D/A Amendment 8
12.6% 5/14/2026
Event 5/12/2026
MPM BioVentures 2014, L.P. 13D/A Amendment 7
3.8% 5/12/2026
Event 5/8/2026
MPM BioVentures 2014, L.P. 13D/A Amendment 6
5.4% 5/5/2026
Event 5/1/2026
Longwood Fund III, L.P. 13G/A Amendment 1
3.5% 2/11/2026
Event 12/31/2025
MPM BioVentures 2014, L.P. 13D/A Amendment 5
6.9% 1/16/2026
Event 1/14/2026
MPM BioVentures 2014, L.P. 13D/A Amendment 4
8.2% 12/29/2025
Event 12/22/2025
MPM BioVentures 2014, L.P. 13D/A Amendment 3
10.0% 12/3/2025
Event 12/1/2025
MPM BioVentures 2014, L.P. 13D/A Amendment 2
11.3% 11/17/2025
Event 11/13/2025
RA Capital Management, L.P. 13D/A Amendment 7
13.8% 11/6/2025
Event 11/4/2025
MPM BioVentures 2014, L.P. 13D/A Amendment 1
13.4% 11/4/2025
Event 10/31/2025
PFM Health Sciences, LP 13G/A Amendment 4
0.9% 8/14/2025
Event 6/30/2025
RA Capital Management, L.P. 13D/A Amendment 6
15.0% 5/14/2025
Event 5/12/2025
PFM Health Sciences, LP 13G/A Amendment 3
6.5% 2/14/2025
Event 12/31/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 1 53.4 k $49.3 k
2026 Q2 47 10.9 M $3.91 M
2026 Q1 48 14.0 M $11.7 M
2025 Q4 51 14.7 M $9.34 M
2025 Q3 64 21.1 M $41.6 M
2025 Q2 67 22.3 M $24.3 M
2025 Q1 73 27.4 M $26.7 M
2024 Q4 77 28.2 M $41.7 M
2024 Q3 73 32.2 M $68.3 M
2024 Q2 77 32.5 M $79.4 M
2024 Q1 68 32.4 M $210 M
2023 Q4 46 27.7 M $107 M
2023 Q3 36 23.9 M $51.1 M
2023 Q2 37 24.0 M $73.3 M
2023 Q1 39 24.0 M $62.5 M
2022 Q4 42 20.9 M $42.9 M
2022 Q3 45 21.0 M $94.5 M
2022 Q2 47 19.1 M $78.0 M
2022 Q1 50 19.0 M $84.3 M
2021 Q4 53 19.2 M $228 M
2021 Q3 43 19.0 M $326 M
2021 Q2 46 19.8 M $344 M