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Livermore
Livermore
ZHEN

MPM Asset Management LLC

SEC CIK
0001263048
Latest filing
Nov 14, 2025

HOWL holding history

Werewolf Therapeutics, Inc. in every 13F filed by MPM Asset Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

HOWL overviewAll 13F holders of HOWLFull Q3 2025 holdings

Shares (Q3 2025)
4,309,860
Value
$8.49M
% of portfolio
19.1%
Quarters held
18
Since Q2 2021
Holdings of HOWL by MPM Asset Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q3 20254,309,860$8.49M19.1%00.0%UnchangedHolders
Q2 20254,309,860$4.70M10.8%00.0%UnchangedHolders
Q1 20254,309,860$4.19M6.0%+25,688+0.6%AddedHolders
Q4 20244,284,172$6.34M5.1%00.0%UnchangedHolders
Q3 20244,284,172$9.08M6.3%00.0%UnchangedHolders
Q2 20244,284,172$10.5M5.7%00.0%UnchangedHolders
Q1 20244,284,172$27.8M11.3%00.0%UnchangedHolders
Q4 20234,284,172$16.5M8.1%00.0%UnchangedHolders
Q3 20234,284,172$9.17M4.9%00.0%UnchangedHolders
Q2 20234,284,172$13.1M6.4%00.0%UnchangedHolders
Q1 20234,284,172$11.1M4.6%00.0%UnchangedHolders
Q4 20224,284,172$8.78M3.7%00.0%UnchangedHolders
Q3 20224,284,172$19.3M7.4%00.0%UnchangedHolders
Q2 20224,284,172$17.5M7.4%00.0%UnchangedHolders
Q1 20224,284,172$18.9M6.4%00.0%UnchangedHolders
Q4 20214,284,172$51.0M11.0%00.0%UnchangedHolders
Q3 20214,284,172$73.5M17.0%00.0%UnchangedHolders
Q2 20214,284,172$74.7M13.9%+4,284,172NewHolders