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MPM BIOIMPACT LLC

Position in HOWL — Werewolf Therapeutics, Inc.

CIK 1687078 BOSTON, MA

Position in HOWL

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$28,851
-$978,087 QoQ
Shares Held
80,142
-93.4% QoQ
Ownership
0.165%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#21
of 45 holders
Holding Since
Jun 2021
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in HOWL Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

MPM BIOIMPACT LLC holds $1,463,416,616 across 34 Biotechnology names. HOWL ranks #34 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in HOWL

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $28,851 80,142
2026-03-31 $1,006,938 1,208,810
2025-12-31 $883,515 1,393,557
2025-09-30 $4,745,355 2,408,810
2025-06-30 $2,625,602 2,408,810
2025-03-31 $2,341,363 2,408,810
2024-12-31 $3,534,256 2,388,011
2024-09-30 $5,062,583 2,388,011
2024-06-30 $5,826,746 2,388,011
2024-03-31 $15,474,311 2,388,011
2023-12-31 $9,217,722 2,388,011
2023-09-30 $5,110,343 2,388,011
2023-06-30 $7,283,433 2,388,011
2023-03-31 $6,208,828 2,388,011
2022-12-31 $4,895,422 2,388,011
2022-09-30 $10,769,929 2,388,011
2022-06-30 $9,766,964 2,388,011
2022-03-31 $10,507,248 2,388,011
2021-12-31 $28,441,211 2,388,011
2021-09-30 $40,978,268 2,388,011
2021-06-30 $41,646,911 2,388,011