MPM ASSET MANAGEMENT LLC
Insider CIK 1263048 · ONCR 10% owner · HARP 10% owner · TCRR 10% owner · HOWL 10% owner · AKTS 10% owner
Trades across companies
| Ticker | Code | Trade | Filed | Shares | Price | Value | Owned after | |
|---|---|---|---|---|---|---|---|---|
| AKTS Aktis Oncology, Inc. | C Conversion deriv | 2026-01-12 | 2026-01-14 | 22,500,000 | — | $0 | 0 | SEC↗ |
| AKTS Aktis Oncology, Inc. | C Conversion deriv | 2026-01-12 | 2026-01-14 | 5,000,000 | — | $0 | 0 | SEC↗ |
| AKTS Aktis Oncology, Inc. | C Conversion deriv | 2026-01-12 | 2026-01-14 | 6,000,000 | — | $0 | 0 | SEC↗ |
| AKTS Aktis Oncology, Inc. | C Conversion | 2026-01-12 | 2026-01-14 | 5,914,197 | — | $0 | 7,570,168 | SEC↗ |
| AKTS Aktis Oncology, Inc. | C Conversion | 2026-01-12 | 2026-01-14 | 1,577,119 | — | $0 | 9,147,287 | SEC↗ |
| AKTS Aktis Oncology, Inc. | P Buy | 2026-01-12 | 2026-01-14 | 1,112,777 | $18.00 | $20.03M | 10,260,064 | SEC↗ |
| AKTS Aktis Oncology, Inc. | C Conversion | 2026-01-12 | 2026-01-14 | 1,314,262 | — | $0 | 1,655,971 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-12-04 | 2025-12-04 | 83,230 | $0.97 | $80.7K | 4,784,111 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-12-03 | 2025-12-04 | 57,225 | $0.87 | $49.8K | 4,867,341 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-12-02 | 2025-12-04 | 59,277 | $0.89 | $52.8K | 4,924,566 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-12-01 | 2025-12-01 | 60,917 | $0.94 | $57.3K | 4,983,843 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-28 | 2025-12-01 | 20,277 | $0.99 | $20.1K | 5,044,760 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-26 | 2025-12-01 | 60,733 | $0.98 | $59.5K | 5,065,037 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-25 | 2025-11-25 | 42,533 | $0.92 | $39.1K | 5,125,770 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-24 | 2025-11-25 | 88,802 | $0.98 | $87.0K | 5,168,303 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-21 | 2025-11-25 | 64,331 | $0.83 | $53.4K | 5,257,105 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-20 | 2025-11-20 | 41,152 | $0.89 | $36.6K | 5,321,436 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-19 | 2025-11-20 | 66,324 | $0.94 | $62.3K | 5,362,588 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-18 | 2025-11-20 | 52,627 | $0.93 | $48.9K | 5,428,912 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-17 | 2025-11-17 | 57,061 | $0.95 | $54.2K | 5,481,539 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-14 | 2025-11-17 | 61,640 | $0.93 | $57.3K | 5,538,600 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-13 | 2025-11-17 | 90,951 | $0.98 | $89.1K | 5,600,240 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-12 | 2025-11-12 | 40,669 | $1.09 | $44.3K | 5,691,191 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-11 | 2025-11-12 | 55,810 | $1.14 | $63.6K | 5,731,860 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-10 | 2025-11-12 | 48,570 | $1.18 | $57.3K | 5,787,670 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-07 | 2025-11-12 | 68,480 | $1.11 | $76.0K | 5,836,240 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-06 | 2025-11-06 | 54,452 | $1.21 | $65.9K | 5,904,720 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-05 | 2025-11-06 | 47,950 | $1.22 | $58.5K | 5,959,172 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-04 | 2025-11-06 | 140,488 | $1.22 | $171.4K | 6,007,122 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-11-03 | 2025-11-03 | 94,063 | $1.29 | $121.3K | 6,147,610 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-10-31 | 2025-11-03 | 114,044 | $1.28 | $146.0K | 6,241,673 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-10-30 | 2025-11-03 | 86,936 | $1.43 | $124.3K | 6,355,717 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-10-29 | 2025-10-29 | 134,240 | $1.55 | $208.1K | 6,442,653 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-10-28 | 2025-10-29 | 69,068 | $1.64 | $113.3K | 6,576,893 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-10-27 | 2025-10-29 | 72,709 | $1.72 | $125.1K | 6,645,961 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | X Exercise deriv | 2025-03-27 | 2025-04-30 | 8,031 | — | $0 | 0 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | X Exercise deriv | 2025-03-27 | 2025-04-30 | 42,842 | — | $0 | 0 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | X Exercise | 2025-03-27 | 2025-04-30 | 50,873 | $0.09 | $4.6K | 6,723,056 | SEC↗ |
| HOWL Werewolf Therapeutics, Inc | S Sale | 2025-03-27 | 2025-04-30 | 4,386 | $1.05 | $4.6K | 6,718,670 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | J Other | 2023-06-01 | 2023-06-05 | 4,158,964 | — | $0 | 0 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | X Exercise deriv | 2023-05-22 | 2023-05-24 | 42,761 | — | $0 | 0 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | X Exercise deriv | 2023-05-22 | 2023-05-24 | 135,508 | — | $0 | 0 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | S Sale | 2023-05-22 | 2023-05-24 | 70,170 | $1.88 | $131.9K | 304,001 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | X Exercise | 2023-05-22 | 2023-05-24 | 178,269 | $0.74 | $131.9K | 374,171 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-15 | 2021-04-15 | 1,052 | $20.49 | $21.6K | 3,220,844 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-14 | 2021-04-15 | 1,550 | $20.83 | $32.3K | 3,221,896 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-14 | 2021-04-15 | 121 | $20.06 | $2.4K | 3,223,446 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-13 | 2021-04-15 | 286 | $20.08 | $5.7K | 3,223,567 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-13 | 2021-04-15 | 1,657 | $19.35 | $32.1K | 3,223,853 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-12 | 2021-04-13 | 48 | $22.68 | $1.1K | 3,225,510 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-12 | 2021-04-13 | 1,637 | $20.72 | $33.9K | 3,226,369 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-12 | 2021-04-13 | 811 | $21.52 | $17.5K | 3,225,558 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-04-09 | 2021-04-13 | 10,300 | $23.67 | $243.8K | 3,228,006 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-10 | 2021-02-12 | 183,051 | $20.00 | $3.66M | 3,238,306 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-09 | 2021-02-09 | 9,400 | $20.25 | $190.3K | 3,421,357 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-08 | 2021-02-09 | 72,128 | $20.04 | $1.45M | 3,430,757 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-05 | 2021-02-09 | 10,172 | $20.01 | $203.5K | 3,502,885 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-04 | 2021-02-04 | 29,730 | $20.37 | $605.6K | 3,513,057 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-03 | 2021-02-04 | 41,922 | $20.21 | $847.2K | 3,542,787 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-02-02 | 2021-02-04 | 48,421 | $20.13 | $974.7K | 3,584,709 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-27 | 2021-01-27 | 706,825 | $20.00 | $14.14M | 3,633,130 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-26 | 2021-01-27 | 1,363 | $21.08 | $28.7K | 4,339,955 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-25 | 2021-01-27 | 13,006 | $21.23 | $276.1K | 4,341,318 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-22 | 2021-01-22 | 24,695 | $21.72 | $536.4K | 4,354,324 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-21 | 2021-01-22 | 20,979 | $22.11 | $463.8K | 4,384,106 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-21 | 2021-01-22 | 200 | $23.77 | $4.8K | 4,379,019 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-21 | 2021-01-22 | 4,887 | $22.61 | $110.5K | 4,379,219 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | J Other | 2021-01-20 | 2021-01-22 | 101,646 | — | $0 | 4,405,085 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-20 | 2021-01-22 | 2,000 | $24.71 | $49.4K | 4,506,731 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2021-01-20 | 2021-01-22 | 15,694 | $23.95 | $375.9K | 4,508,731 | SEC↗ |
| ONCR Oncorus, Inc. | C Conversion deriv | 2020-10-06 | 2020-10-08 | 775,975 | — | $0 | 0 | SEC↗ |
| ONCR Oncorus, Inc. | C Conversion deriv | 2020-10-06 | 2020-10-08 | 1,783,879 | — | $0 | 0 | SEC↗ |
| ONCR Oncorus, Inc. | P Buy | 2020-10-06 | 2020-10-08 | 173,776 | $15.00 | $2.61M | 2,849,453 | SEC↗ |
| ONCR Oncorus, Inc. | C Conversion | 2020-10-06 | 2020-10-08 | 1,783,879 | — | $0 | 1,899,702 | SEC↗ |
| ONCR Oncorus, Inc. | C Conversion | 2020-10-06 | 2020-10-08 | 775,975 | — | $0 | 2,675,677 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | C Conversion deriv | 2019-02-19 | 2019-02-21 | 17,500,000 | — | $0 | 0 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | C Conversion deriv | 2019-02-19 | 2019-02-21 | 2,000,000 | — | $0 | 0 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | C Conversion | 2019-02-19 | 2019-02-21 | 2,825,396 | — | $0 | 3,021,298 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | P Buy | 2019-02-19 | 2019-02-21 | 706,666 | $15.00 | $10.60M | 4,050,865 | SEC↗ |
| TCRR TCR2 THERAPEUTICS INC. | C Conversion | 2019-02-19 | 2019-02-21 | 322,901 | — | $0 | 3,344,199 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 25,418 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion deriv | 2019-02-12 | 2019-02-14 | 1,525,164 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion deriv | 2019-02-12 | 2019-02-14 | 1,578,751 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion deriv | 2019-02-12 | 2019-02-14 | 417,852 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 57,192 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 171,579 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 50,837 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 76,256 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise deriv | 2019-02-12 | 2019-02-14 | 50,837 | — | $0 | 0 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | S Sale | 2019-02-12 | 2019-02-14 | 1,524 | $14.00 | $21.3K | 4,274,425 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | P Buy | 2019-02-12 | 2019-02-14 | 250,000 | $14.00 | $3.50M | 4,524,425 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion | 2019-02-12 | 2019-02-14 | 1,525,164 | — | $0 | 1,847,227 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion | 2019-02-12 | 2019-02-14 | 1,578,751 | — | $0 | 3,425,978 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | C Conversion | 2019-02-12 | 2019-02-14 | 417,852 | — | $0 | 3,843,830 | SEC↗ |
| HARP Harpoon Therapeutics, Inc. | X Exercise | 2019-02-12 | 2019-02-14 | 432,119 | $0.05 | $21.6K | 4,275,949 | SEC↗ |