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 |
| 2023-03-21 Purchase | 2023-03-22 4:06 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 160,590 | $11.52 | $1,849,997 | 357,514 (Indirect) | View |
| 2023-01-30 Purchase(A) | 2023-03-01 5:04 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 26,967 | $11.36 | $306,375 | 324,333 (Indirect) | View |
| 2023-01-30 Purchase | 2023-02-01 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 26,940 | $11.36 | $306,068 | 324,306 (Indirect) | View |
| 2023-01-27 Purchase | 2023-01-31 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 21,875 | $11.4 | $249,298 | 318,898 (Indirect) | View |
| 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 |
| 2023-01-06 Purchase | 2023-01-09 4:06 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Radeljevic Ana Director | 4,156 | $12.03 | $49,997 | 4,156 (Direct) | 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 |
| 2023-01-03 Purchase | 2023-01-04 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 30,632 | $11.33 | $347,159 | 314,488 (Indirect) | View |
| 2022-12-29 Purchase | 2023-01-03 4:16 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Andersen Eric Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP L.P. See remarks | 259,936 | $10.67 | $2,774,716 | 306,269 (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 |
| 2022-06-16 Purchase | 2022-06-21 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 | 1,420 | $5.7783 | $8,205 | 741,969 (Indirect) | View |
| 2022-06-14 Purchase | 2022-06-16 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 | 23,838 | $5.1967 | $123,880 | 741,361 (Indirect) | View |
| 2022-06-10 Purchase | 2022-06-14 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 | 16,085 | $5.0582 | $81,361 | 731,159 (Indirect) | View |
| 2022-06-09 Purchase | 2022-06-13 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 4,452 | $5.1478 | $22,918 | 131,105 (Indirect) | View |
| 2022-06-07 Purchase | 2022-06-09 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 649 | $5.1003 | $3,310 | 126,653 (Indirect) | View |
| 2022-05-24 Purchase | 2022-05-26 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 2,455 | $5.0895 | $12,495 | 126,004 (Indirect) | View |
| 2022-05-19 Purchase | 2022-05-23 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 512 | $5.0428 | $2,582 | 123,549 (Indirect) | View |
| 2022-05-17 Purchase | 2022-05-19 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 5,225 | $5.082 | $26,554 | 123,037 (Indirect) | View |
| 2022-05-12 Purchase | 2022-05-16 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 2,474 | $5.0407 | $12,471 | 117,812 (Indirect) | View |
| 2022-04-21 Purchase | 2022-04-25 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 5,000 | $6.0002 | $30,001 | 115,338 (Indirect) | View |
| 2022-03-30 Purchase | 2022-04-01 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 461 | $6.1848 | $2,851 | 110,338 (Indirect) | View |
| 2022-03-28 Purchase | 2022-03-29 5:30 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 5,000 | $6.1643 | $30,822 | 109,877 (Indirect) | View |
| 2022-03-22 Purchase | 2022-03-24 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 400 | $6.1138 | $2,446 | 104,877 (Indirect) | View |
| 2022-03-15 Purchase | 2022-03-17 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 4,649 | $6.1423 | $28,556 | 104,477 (Indirect) | View |
| 2022-03-11 Purchase | 2022-03-15 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 10,000 | $6.0527 | $60,527 | 99,828 (Indirect) | View |
| 2022-02-18 Purchase | 2022-02-23 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 3,351 | $5.9593 | $19,970 | 89,828 (Indirect) | View |
| 2022-02-16 Purchase | 2022-02-18 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 12,945 | $6.169 | $79,857 | 86,477 (Indirect) | View |
| 2022-02-14 Purchase | 2022-02-16 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 1,923 | $5.9731 | $11,486 | 73,532 (Indirect) | View |
| 2022-01-28 Purchase | 2022-02-01 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 | 14,200 | $4.5267 | $64,279 | 724,275 (Indirect) | View |
| 2022-01-27 Purchase | 2022-01-31 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 673 | $4.6 | $3,096 | 71,609 (Indirect) | View |
| 2022-01-26 Purchase | 2022-01-28 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 | 35,800 | $4.9234 | $176,259 | 712,294 (Indirect) | View |
| 2022-01-26 Purchase | 2022-01-27 4:05 pm | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 3,100 | $4.5552 | $14,121 | 70,936 (Indirect) | View |
| 2022-01-24 Purchase | 2022-01-25 4:13 pm | MERRIMACK PHARMACEUTICALS INC | MACK | Nielsen Ulrik B. Director | 14,287 | $4.2437 | $60,630 | 36,968 (Indirect) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
Ownership | 2022-06-17 10:06 am | N/A 2032-06-05 | MERRIMACK PHARMACEUTICALS INC | MACK | Radeljevic Ana Director | 0 | $0 | 7,000 (Direct) | View |
| 2022-06-06 Option Award | 2022-06-07 4:05 pm | N/A 2032-06-05 | MERRIMACK PHARMACEUTICALS INC | MACK | Nielsen Ulrik B. Director | 7,000 | $0 | 21,000 (Direct) | View |
| 2022-06-06 Option Award | 2022-06-07 4:05 pm | N/A 2032-06-05 | MERRIMACK PHARMACEUTICALS INC | MACK | CROCKER GARY L See Remarks | 8,000 | $0 | 24,000 (Direct) | View |