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 |
2023-01-12 Purchase |
2023-01-17 4:05 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
100,000 | $11.9 | $1,190,000 | 1,119,586 (Indirect) |
View |
2022-12-30 Purchase |
2023-01-04 4:06 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
6,600 | $11.24 | $74,179 | 1,019,586 (Indirect) |
View |
2022-07-13 Purchase |
2022-07-15 4:05 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
3,095 | $5.8891 | $18,227 | 754,108 (Indirect) |
View |
2022-07-11 Purchase |
2022-07-13 4:05 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
3,516 | $5.8866 | $20,697 | 751,013 (Indirect) |
View |
2022-07-07 Purchase |
2022-07-11 4:05 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
2,478 | $5.9867 | $14,835 | 747,497 (Indirect) |
View |
2022-06-30 Purchase |
2022-07-05 4:06 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
1,550 | $5.7558 | $8,921 | 745,019 (Indirect) |
View |
2022-06-23 Purchase |
2022-06-27 4:05 pm |
MERRIMACK PHARMACEUTICALS INC | MACK | Levy Noah G. Newtyn Management LLC NEWTYN PARTNERS LP NEWTYN TE PARTNERS LP Newtyn Capital Partners LP Ledo Capital LLC See remarks |
1,500 | $5.9933 | $8,990 | 743,469 (Indirect) |
View |