Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2021-12-15 Sale |
2021-12-17 4:17 pm |
Werewolf Therapeutics Inc. | HOWL | Leonard Reid Chief Operating Officer |
3,000 | $13.41 | $40,242 | 122,157 (Indirect) |
View |
2021-06-14 Purchase |
2021-06-16 4:58 pm |
Werewolf Therapeutics Inc. | HOWL | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP Kolchinsky Peter Shah Rajeev M. Director 10% Owner |
323,298 | $12.77 | $4,129,398 | 4,291,881 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-06 4:31 pm |
Werewolf Therapeutics Inc. | HOWL | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP Kolchinsky Peter Shah Rajeev M. Director 10% Owner |
1,715,000 | $16 | $27,440,000 | 443,825 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-06 4:20 pm |
Werewolf Therapeutics Inc. | HOWL | MPM BioVentures 2014 L.P. MPM BioVentures 2014 (B) L.P. MPM BioVentures 2014 LLC MPM BioVentures 2014 GP LLC Foley Todd MPM Asset Management Investors BV2014 LLC 10% Owner |
125,759 | $16 | $2,012,144 | 3,187,998 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-06 4:19 pm |
Werewolf Therapeutics Inc. | HOWL | GADICKE ANSBERT MPM ONCOLOGY INNOVATIONS FUND LP UBS Oncology Impact Fund L.P. Oncology Impact Fund (Cayman) Management L.P. MPM Oncology Impact Management LP MPM Oncology Innovations Fund GP LLC MPM Oncology Impact Management GP LLC 10% Owner |
245,000 | $16 | $3,920,000 | 6,672,183 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-06 4:19 pm |
Werewolf Therapeutics Inc. | HOWL | EVNIN LUKE Director 10% Owner |
150,799 | $16 | $2,412,784 | 12,224,142 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-04 4:31 pm |
Werewolf Therapeutics Inc. | HOWL | Taiho Ventures LLC 10% Owner |
312,500 | $16 | $5,000,000 | 2,068,909 (Direct) |
View |
2021-05-04 Purchase |
2021-05-04 4:31 pm |
Werewolf Therapeutics Inc. | HOWL | Asanuma Sakae Director 10% Owner |
312,500 | $16 | $5,000,000 | 5,866,830 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-04 4:31 pm |
Werewolf Therapeutics Inc. | HOWL | Arkin Bio Ventures 2 L.P. Arkin Bio Ventures GPGP Ltd. Arkin Moshe 10% Owner |
400,000 | $16 | $6,400,000 | 2,046,634 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-04 4:30 pm |
Werewolf Therapeutics Inc. | HOWL | Longwood Fund III GP LLC Longwood Fund III L.P. 10% Owner |
250,000 | $16 | $4,000,000 | 1,677,082 (Indirect) |
View |
2021-05-04 Purchase |
2021-05-04 4:30 pm |
Werewolf Therapeutics Inc. | HOWL | Lazarus Alon Director 10% Owner |
400,000 | $16 | $6,400,000 | 5,630,385 (Indirect Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2022-06-01 Option Award |
2022-06-03 4:42 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | EVNIN LUKE Director |
11,600 | $0 | 11,600 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:42 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | DiRocco Derek Director |
11,600 | $0 | 11,600 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:41 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | Morrison Briggs Director |
11,600 | $0 | 11,600 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:40 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | Karunatilake Chulani Chief Technology Officer |
136,000 | $0 | 136,000 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:39 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | Sherman Michael A. Director |
11,600 | $0 | 11,600 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:39 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | Lazarus Alon Director |
11,600 | $0 | 11,600 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 4:39 pm |
N/A 2032-05-31 |
Werewolf Therapeutics Inc. | HOWL | Chatterjee Meeta Director |
7,733 | $0 | 7,733 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:34 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Isaacs Randi Chief Medical Officer |
79,516 | $0 | 79,516 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:33 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Leonard Reid Chief Operating Officer |
70,967 | $0 | 70,967 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:32 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Trost Timothy W. Chief Financial Officer |
65,960 | $0 | 65,960 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:31 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | HICKLIN DANIEL J See Remarks |
215,888 | $0 | 215,888 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:30 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Lubman Ellen Chief Business Officer |
51,088 | $0 | 51,088 (Direct) |
View |
2022-01-06 Option Award |
2022-01-18 6:29 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Karunatilake Chulani Chief Technology Officer |
34,258 | $0 | 34,258 (Direct) |
View |
2022-01-12 Exercise |
2022-01-14 5:58 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Seidel-Dugan Cynthia Chief Scientific Officer |
15,532 | $4.77 | 364,972 (Direct) |
View |
2022-01-12 Exercise |
2022-01-14 5:58 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Seidel-Dugan Cynthia Chief Scientific Officer |
24,199 | $1.56 | 364,972 (Direct) |
View |
2022-01-06 Option Award |
2022-01-14 5:58 pm |
N/A 2032-01-05 |
Werewolf Therapeutics Inc. | HOWL | Seidel-Dugan Cynthia Chief Scientific Officer |
79,516 | $0 | 364,972 (Direct) |
View |
2022-01-12 Exercise |
2022-01-14 5:58 pm |
N/A 2030-05-19 |
Werewolf Therapeutics Inc. | HOWL | Seidel-Dugan Cynthia Chief Scientific Officer |
39,731 | $0 | 364,972 (Direct) |
View |
2021-12-30 Exercise |
2022-01-04 4:26 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Leonard Reid Chief Operating Officer |
14,102 | $1.56 | 183,293 (Direct) |
View |
2021-12-30 Exercise |
2022-01-04 4:26 pm |
N/A 2030-05-19 |
Werewolf Therapeutics Inc. | HOWL | Leonard Reid Chief Operating Officer |
14,102 | $0 | 183,293 (Direct) |
View |
2021-10-28 Option Award |
2021-11-01 4:12 pm |
N/A 2031-10-27 |
Werewolf Therapeutics Inc. | HOWL | Chatterjee Meeta Director |
23,200 | $0 | 23,200 (Direct) |
View |
2021-07-01 Option Award |
2021-07-02 08:26 am |
N/A 2031-06-30 |
Werewolf Therapeutics Inc. | HOWL | Karunatilake Chulani Chief Technology Officer |
272,000 | $0 | 272,000 (Direct) |
View |
2021-05-27 Option Award |
2021-05-28 08:07 am |
N/A 2031-05-26 |
Werewolf Therapeutics Inc. | HOWL | Sherman Michael A. Director |
23,200 | $0 | 23,200 (Direct) |
View |
2021-05-04 Conversion |
2021-05-06 4:31 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP Kolchinsky Peter Shah Rajeev M. Director 10% Owner |
21,790,133 | $0 | 443,825 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-06 4:20 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | MPM BioVentures 2014 L.P. MPM BioVentures 2014 (B) L.P. MPM BioVentures 2014 LLC MPM BioVentures 2014 GP LLC Foley Todd MPM Asset Management Investors BV2014 LLC 10% Owner |
29,609,106 | $0 | 3,187,998 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-06 4:19 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | GADICKE ANSBERT MPM ONCOLOGY INNOVATIONS FUND LP UBS Oncology Impact Fund L.P. Oncology Impact Fund (Cayman) Management L.P. MPM Oncology Impact Management LP MPM Oncology Innovations Fund GP LLC MPM Oncology Impact Management GP LLC 10% Owner |
57,683,698 | $0 | 6,672,183 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-06 4:19 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | EVNIN LUKE Director 10% Owner |
35,504,612 | $0 | 12,224,142 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-05 4:00 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | HBM Healthcare Investments (Cayman) Ltd. 10% Owner |
6,052,814 | $0 | 625,995 (Direct) |
View |
2021-05-04 Conversion |
2021-05-04 4:31 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Taiho Ventures LLC 10% Owner |
16,982,900 | $0 | 2,068,909 (Direct) |
View |
2021-04-30 Option Award |
2021-05-04 4:31 pm |
N/A 2031-04-29 |
Werewolf Therapeutics Inc. | HOWL | DiRocco Derek Director |
23,200 | $0 | 23,200 (Direct) |
View |
2021-02-12 Option Award |
2021-05-04 4:31 pm |
N/A 2031-02-11 |
Werewolf Therapeutics Inc. | HOWL | Trost Timothy W. Chief Financial Officer |
302,568 | $0 | 302,568 (Direct) |
View |
2021-05-04 Conversion |
2021-05-04 4:31 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Asanuma Sakae Director 10% Owner |
16,982,900 | $0 | 5,866,830 (Indirect) |
View |
2020-12-08 Option Award |
2021-05-04 4:31 pm |
N/A 2030-12-07 |
Werewolf Therapeutics Inc. | HOWL | Seidel-Dugan Cynthia Chief Scientific Officer |
157,071 | $0 | 157,071 (Direct) |
View |
2020-12-08 Option Award |
2021-05-04 4:31 pm |
N/A 2030-12-07 |
Werewolf Therapeutics Inc. | HOWL | Leonard Reid Chief Operating Officer |
126,474 | $0 | 126,474 (Direct) |
View |
2021-05-04 Conversion |
2021-05-04 4:31 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Arkin Bio Ventures 2 L.P. Arkin Bio Ventures GPGP Ltd. Arkin Moshe 10% Owner |
15,921,469 | $0 | 2,046,634 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-04 4:30 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Longwood Fund III GP LLC Longwood Fund III L.P. 10% Owner |
13,798,607 | $0 | 1,677,082 (Indirect) |
View |
2021-05-04 Conversion |
2021-05-04 4:30 pm |
N/A N/A |
Werewolf Therapeutics Inc. | HOWL | Lazarus Alon Director 10% Owner |
15,921,469 | $0 | 5,630,385 (Indirect) |
View |
2021-04-30 Option Award |
2021-05-04 4:30 pm |
N/A 2031-04-29 |
Werewolf Therapeutics Inc. | HOWL | Lazarus Alon Director 10% Owner |
23,200 | $0 | 5,630,385 (Direct) |
View |
2020-11-09 Option Award |
2021-05-04 4:30 pm |
N/A 2030-11-08 |
Werewolf Therapeutics Inc. | HOWL | Isaacs Randi Chief Medical Officer |
373,960 | $0 | 373,960 (Direct) |
View |
2020-08-03 Option Award |
2021-05-04 4:30 pm |
N/A 2030-08-02 |
Werewolf Therapeutics Inc. | HOWL | Lubman Ellen Chief Business Officer |
312,767 | $0 | 312,767 (Direct) |
View |
2021-04-30 Option Award |
2021-05-04 4:30 pm |
N/A 2031-04-29 |
Werewolf Therapeutics Inc. | HOWL | Morrison Briggs Director |
23,200 | $0 | 23,200 (Direct) |
View |