Werewolf Therapeutics, Inc
Insiders
Last 12 monthsSales planned on beside the trades reported on , and whether each names a .
Planned ·
$5,413,951
114 notices · 6,696,595 sh
Oct 2025 to Oct 2026
Reported ·
$8,574,333
160 sales · 0 buys
Oct 2025 to Jun 2026
The two figures cover different periods.
140 of 160 reported sales carry the 10b5-1 box. Together they are 20.55% of the shares on issue.
under a no plan named▼ salesize is dollars
Form 144 notices, newest first
2026-07-06MPM Oncology Innovations Fund, L.P., Shareholder$7,214
2026-07-06MPM Asset Management Investors BV2014 LLC, Shareholder$1,134
2026-07-06MPM Asset Management LLC, Shareholder$5,222
2026-07-06UBS Oncology Impact Fund, L.P., Shareholder$27,280
2026-07-06MPM BioVentures 2014 (B), L.P., Shareholder$2,199
2026-07-06MPM BioVentures 2014, L.P., Shareholder$32,976
2026-06-29MPM Oncology Innovations Fund, L.P., Shareholder$7,509
2026-06-29MPM Asset Management Investors BV2014 LLC, Shareholder$1,181
2026-06-29MPM Asset Management LLC, Shareholder$5,436
2026-06-29UBS Oncology Impact Fund, L.P., Shareholder$28,397
2026-06-29MPM BioVentures 2014 (B), L.P., Shareholder$2,289
2026-06-29MPM BioVentures 2014, L.P., Shareholder$34,323
2026-05-28MPM BioVentures 2014, L.P., Shareholder$119,651
2026-05-28MPM BioVentures 2014 (B), L.P., Shareholder$7,981
2026-05-28UBS Oncology Impact Fund, L.P., Shareholder$98,994
2026-05-28MPM Asset Management LLC, Shareholder$18,951
2026-05-28MPM Asset Management Investors BV2014 LLC, Shareholder$4,118
2026-05-28MPM Oncology Innovations Fund, L.P., Shareholder$26,178
2026-05-18MPM Oncology Innovations Fund, L.P., Shareholder$32,729
2026-05-18MPM BioVentures 2014, L.P., Shareholder$149,595
2026-05-18MPM BioVentures 2014 (B), L.P., Shareholder$9,977
2026-05-18UBS Oncology Impact Fund, L.P., Shareholder$123,768
2026-05-18MPM Asset Management LLC, Shareholder$23,694
2026-05-18MPM Asset Management Investors BV2014 LLC, Shareholder$5,149
2026-05-11MPM Oncology Innovations Fund, L.P., Shareholder$12,570
2026-05-11MPM Asset Management LLC, Shareholder$9,100
2026-05-11MPM BioVentures 2014, L.P., Shareholder$57,454
2026-05-11MPM BioVentures 2014 (B), L.P., Shareholder$3,832
2026-05-11UBS Oncology Impact Fund, L.P., Shareholder$47,535
2026-05-11MPM Asset Management Investors BV2014 LLC, Shareholder$1,977
2026-05-01MPM Asset Management Investors BV2014 LLC, Shareholder$9,006
2026-05-01UBS Oncology Impact Fund, L.P., Shareholder$216,471
2026-05-01MPM BioVentures 2014 (B), L.P., Shareholder$17,451
2026-05-01MPM BioVentures 2014, L.P., Shareholder$261,642
2026-05-01MPM Oncology Innovations Fund, L.P., Shareholder$57,243
2026-05-01MPM Asset Management LLC, Shareholder$41,440
2026-04-29MPM Asset Management LLC, Shareholder$15,250
2026-04-29MPM Asset Management Investors BV2014 LLC, Shareholder$3,314
2026-04-29UBS Oncology Impact Fund, L.P., Shareholder$79,662
2026-04-29MPM BioVentures 2014 (B), L.P., Shareholder$6,422
2026-04-29MPM BioVentures 2014, L.P., Shareholder$96,285
2026-04-29MPM Oncology Innovations Fund, L.P., Shareholder$21,066
2026-04-27MPM Asset Management LLC, Shareholder$16,754
2026-04-27MPM Asset Management Investors BV2014 LLC, Shareholder$3,641
2026-04-27MPM BioVentures 2014 (B), L.P., Shareholder$7,055
2026-04-27UBS Oncology Impact Fund, L.P., Shareholder$87,521
2026-04-27MPM BioVentures 2014, L.P., Shareholder$105,784
2026-04-27MPM Oncology Innovations Fund, L.P., Shareholder$23,144
2026-01-06MPM Asset Management LLC, Shareholder$20,272
2026-01-06MPM Asset Management Investors BV2014 LLC, Shareholder$4,408
2026-01-06MPM BioVentures 2014 (B), L.P., Shareholder$8,542
2026-01-06UBS Oncology Impact Fund, L.P., Shareholder$105,763
2026-01-06MPM BioVentures 2014, L.P., Shareholder$128,067
2026-01-06MPM Oncology Innovations Fund, L.P., Shareholder$28,203
2025-12-29MPM Asset Management Investors BV2014 LLC, Shareholder$2,931
2025-12-29UBS Oncology Impact Fund, L.P., Shareholder$70,313
2025-12-29MPM Oncology Innovations Fund, L.P., Shareholder$18,750
2025-12-29MPM BioVentures 2014, L.P., Shareholder$85,141
2025-12-29MPM BioVentures 2014 (B), L.P., Shareholder$5,679
2025-12-29MPM Asset Management LLC, Shareholder$13,477
2025-12-22MPM BioVentures 2014, L.P., Shareholder$89,370
2025-12-22MPM Asset Management Investors BV2014 LLC, Shareholder$3,076
2025-12-22UBS Oncology Impact Fund, L.P., Shareholder$73,806
2025-12-22MPM Oncology Innovations Fund, L.P., Shareholder$19,682
2025-12-22MPM BioVentures 2014 (B), L.P., Shareholder$5,961
2025-12-22MPM Asset Management LLC, Shareholder$14,146
2025-12-10MPM Asset Management LLC, Shareholder$14,169
2025-12-10MPM Oncology Innovations Fund, L.P., Shareholder$19,714
2025-12-10UBS Oncology Impact Fund, L.P., Shareholder$73,927
2025-12-10MPM Asset Management Investors BV2014 LLC, Shareholder$3,081
2025-12-10MPM BioVentures 2014, L.P., Shareholder$89,518
2025-12-10MPM BioVentures 2014 (B), L.P., Shareholder$5,971
2025-12-03MPM BioVentures 2014 (B), L.P., Shareholder$7,464
2025-12-03MPM Asset Management LLC, Shareholder$17,713
2025-12-03MPM Oncology Innovations Fund, L.P., Shareholder$24,645
2025-12-03UBS Oncology Impact Fund, L.P., Shareholder$92,418
2025-12-03MPM Asset Management Investors BV2014 LLC, Shareholder$3,852
2025-12-03MPM BioVentures 2014, L.P., Shareholder$111,908
2025-11-24MPM BioVentures 2014 (B), L.P., Shareholder$7,579
Form 4, 2025-12-01: sold 141,927 at $0.96 Form 4 ↗
2025-11-24MPM Asset Management LLC, Shareholder$17,985
Form 4, 2025-12-01: sold 141,927 at $0.96 Form 4 ↗
2025-11-24MPM Oncology Innovations Fund, L.P., Shareholder$25,023
2025-11-24UBS Oncology Impact Fund, L.P., Shareholder$93,837
2025-11-24MPM BioVentures 2014, L.P., Shareholder$113,625
2025-11-24MPM Asset Management Investors BV2014 LLC, Shareholder$3,911
2025-11-17MPM Asset Management Investors BV2014 LLC, Shareholder$4,113
Form 4, 2025-11-20: sold 160,103 at $0.92 Form 4 ↗
2025-11-17MPM BioVentures 2014 (B), L.P., Shareholder$7,969
2025-11-17MPM Asset Management LLC, Shareholder$18,912
Form 4, 2025-11-20: sold 160,103 at $0.92 Form 4 ↗
2025-11-17MPM Oncology Innovations Fund, L.P., Shareholder$26,313
2025-11-17UBS Oncology Impact Fund, L.P., Shareholder$98,673
2025-11-17MPM BioVentures 2014, L.P., Shareholder$119,481
2025-11-10MPM BioVentures 2014 (B), L.P., Shareholder$9,981
Form 4, 2025-11-17: sold 209,652 at $0.96 Form 4 ↗
2025-11-10UBS Oncology Impact Fund, L.P., Shareholder$123,582
Form 4, 2025-11-17: sold 209,652 at $0.96 Form 4 ↗
2025-11-10MPM Oncology Innovations Fund, L.P., Shareholder$32,956
2025-11-10MPM BioVentures 2014, L.P., Shareholder$149,644
2025-11-10MPM Asset Management LLC, Shareholder$23,687
2025-11-10MPM Asset Management Investors BV2014 LLC, Shareholder$5,151
2025-11-04MPM Asset Management Investors BV2014 LLC, Shareholder$5,867
Form 4, 2025-11-06: sold 242,890 at $1.22 Form 4 ↗
2025-11-04MPM BioVentures 2014 (B), L.P., Shareholder$11,369
2025-11-04UBS Oncology Impact Fund, L.P., Shareholder$140,777
Form 4, 2025-11-06: sold 242,890 at $1.22 Form 4 ↗
2025-11-04MPM Oncology Innovations Fund, L.P., Shareholder$37,541
2025-11-04MPM BioVentures 2014, L.P., Shareholder$170,464
2025-11-04MPM Asset Management LLC, Shareholder$26,982
2025-10-30MPM Asset Management Investors BV2014 LLC, Shareholder$6,987
Form 4, 2025-11-03: sold 295,043 at $1.33 Form 4 ↗
2025-10-30MPM BioVentures 2014 (B), L.P., Shareholder$13,539
2025-10-30MPM Asset Management LLC, Shareholder$32,131
Form 4, 2025-11-03: sold 295,043 at $1.33 Form 4 ↗
2025-10-30UBS Oncology Impact Fund, L.P., Shareholder$167,642
2025-10-30MPM Oncology Innovations Fund, L.P., Shareholder$44,705
2025-10-30MPM BioVentures 2014, L.P., Shareholder$202,995
2025-10-27MPM Asset Management Investors BV2014 LLC, Shareholder$7,928
Form 4, 2025-10-29: sold 276,017 at $1.62 Form 4 ↗
2025-10-27MPM BioVentures 2014 (B), L.P., Shareholder$15,362
2025-10-27MPM Asset Management LLC, Shareholder$36,457
Form 4, 2025-10-29: sold 276,017 at $1.62 Form 4 ↗
2025-10-27UBS Oncology Impact Fund, L.P., Shareholder$190,210
2025-10-27MPM Oncology Innovations Fund, L.P., Shareholder$50,723
2025-10-27MPM BioVentures 2014, L.P., Shareholder$230,321