Transaction · 0001134657-26-000002

EVNIN LUKE

EVNIN LUKE, DIR, reported an open-market or private sale at Werewolf Therapeutics, Inc. involving 18378.000000 shares for an estimated $11761.92. Reported holdings after the transaction were 2453919.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SDIR
HOWLWerewolf Therapeutics, Inc.
Filing timeJan 07
Trade dateJan 05, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

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HOWL price since this filing

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HOWL since 2026-01-07Filed 240 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001134657-26-000002
Common Stock
Transaction date
Jan 05, 2026
Filed Jan 07, 2026, 10:12 PM · 2d delay
Shares
18.3k sh
$64 per share
Estimated value
-$1.17M
Computed from shares × price
Holdings after
2.45M sh
Indirect · See Footnotes

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
10b5-1 Detected
-6score
Filing-only score

-6

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025.

  2. F2

    The shares were sold as follows: 1,966 by MPM Asset Management LLC ("AM LLC"), 12,420 by MPM BioVentures 2014, L.P. ("BV 2014"), 828 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 429 by MPM Asset M…

  3. F3

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.63435 to $0.6549 inclusive. The Reporting Person undertakes to pro…

  4. F4

    MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM

  5. BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. Luke Evnin is a member of AM LLC, a Managing Director of BV LLC and a manager of MPM OIF GP. The Reportin…

  6. securities except to the extent of his pecuniary interest therein.

  7. F5

    The shares are held as follows: 262,868 by AM LLC, 1,659,794 by BV 2014, 110,705 by BV 2014(B), 57,125 by AM BV2014 and 363,427 by MPM OIF.

  8. F6

    The shares were sold as follows: 4,361 by AM LLC, 27,548 by BV 2014, 1,837 by BV 2014(B), 948 by AM BV2014 and 6,067 by MPM OIF.

  9. F7

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.64 to $0.6599 inclusive. The Reporting Person undertakes to provid…

  10. F8

    The shares are held as follows: 258,507 by AM LLC, 1,632,246 by BV 2014, 108,868 by BV 2014(B), 56,177 by AM BV2014 and 357,360 by MPM OIF.

  11. F9

    The shares were sold as follows: 1,275 by AM LLC, 8,053 by BV 2014, 537 by BV 2014(B), 277 by AM BV2014 and 1,773 by MPM OIF.

  12. F10

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.6276 to $0.6598 inclusive. The Reporting Person undertakes to prov…

  13. F11

    The shares are held as follows: 257,232 by AM LLC, 1,624,193 by BV 2014, 108,331 by BV 2014(B), 55,900 by AM BV2014 and 355,587 by MPM OIF.

Original filing · 0001134657-26-000002
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