Overview Financials News + Filings Key Docs Charts Transactions Holdings Ownership Insiders
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BlackRock Inc.
> MACK
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | MERRIMACK PHARMACEUTICALS INC | MACK | 676,290 | 454,037 | 8,318,367,000 | 5,586,877,000 | $12,300.00 |
| 03/31/2023 | MERRIMACK PHARMACEUTICALS INC | MACK | 222,253 | 15,470 | 2,731,490,000 | 2,730,715,000 | $12,290.00 |
| 09/30/2022 | MERRIMACK PHARMACEUTICALS INC | MACK | 206,783 | -932 | 775,000 | -460,000 | $3.75 |
| 06/30/2022 | MERRIMACK PHARMACEUTICALS INC | MACK | 207,715 | -3,724 | 1,235,000 | -103,000 | $5.95 |
| 03/31/2022 | MERRIMACK PHARMACEUTICALS INC | MACK | 211,439 | -1,224 | 1,338,000 | 506,000 | $6.33 |
| 12/31/2021 | MERRIMACK PHARMACEUTICALS INC | MACK | 212,663 | 1,612 | 832,000 | -188,000 | $3.91 |
| 09/30/2021 | MERRIMACK PHARMACEUTICALS INC | MACK | 211,051 | 23,961 | 1,020,000 | -175,000 | $4.83 |
| 06/30/2021 | MERRIMACK PHARMACEUTICALS INC | MACK | 187,090 | -68,413 | 1,195,000 | -410,000 | $6.39 |
| 03/31/2021 | MERRIMACK PHARMACEUTICALS INC | MACK | 255,503 | 3,572 | 1,605,000 | -131,000 | $6.28 |
| 12/31/2020 | MERRIMACK PHARMACEUTICALS INC | MACK | 251,931 | -849 | 1,736,000 | 724,000 | $6.89 |
| 09/30/2020 | MERRIMACK PHARMACEUTICALS INC | MACK | 252,780 | 1,846 | 1,012,000 | 176,000 | $4.00 |
| 06/30/2020 | MERRIMACK PHARMACEUTICALS INC | MACK | 250,934 | 3,012 | 836,000 | 303,000 | $3.33 |
| 03/31/2020 | MERRIMACK PHARMACEUTICALS INC | MACK | 247,922 | -771 | 533,000 | -250,000 | $2.15 |
| 12/31/2019 | MERRIMACK PHARMACEUTICALS INC | MACK | 248,693 | -169 | 783,000 | -337,000 | $3.15 |
| 09/30/2019 | MERRIMACK PHARMACEUTICALS INC | MACK | 248,862 | -1,629 | 1,120,000 | 1,118,485 | $4.50 |
| 06/30/2019 | MERRIMACK PHARMACEUTICALS INC | MACK | 250,491 | -4,340 | 1,515 | -1,769,485 | $0.01 |
| 03/31/2019 | MERRIMACK PHARMACEUTICALS INC | MACK | 254,831 | -1,344 | 1,771,000 | 782,000 | $6.95 |
| 12/31/2018 | MERRIMACK PHARMACEUTICALS INC | MACK | 256,175 | 1,957 | 989,000 | -366,000 | $3.86 |
| 09/30/2018 | MERRIMACK PHARMACEUTICALS INC | MACK | 254,218 | 1,624 | 1,355,000 | 115,000 | $5.33 |
| 06/30/2018 | MERRIMACK PHARMACEUTICALS INC | MACK | 252,594 | -552,726 | 1,240,000 | -5,242,000 | $4.91 |
| 03/31/2018 | MERRIMACK PHARMACEUTICALS INC | MACK | 805,320 | -7,721 | 6,482,000 | -1,851,000 | $8.05 |
| 12/31/2017 | MERRIMACK PHARMACEUTICALS INC | MACK | 813,041 | -220,955 | 8,333,000 | -6,703,000 | $10.25 |
| 09/30/2017 | MERRIMACK PHARMACEUTICALS INC | MACK | 1,033,996 | 1,033,996 | 15,036,000 | 15,036,000 | $14.54 |
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