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WITTENBERG INVESTMENT MANAGEMENT, INC. > MACK

DateNameTickerSharesChangeValueChangePrice
06/30/2023MERRIMACK PHARMACEUTICALS INCMACK204,9947,0002,521,00088,000$12.30
03/31/2023MERRIMACK PHARMACEUTICALS INCMACK197,9949,3002,433,0001,725,000$12.29
09/30/2022MERRIMACK PHARMACEUTICALS INCMACK188,6940708,000-415,000$3.75
06/30/2022MERRIMACK PHARMACEUTICALS INCMACK188,69401,123,000-70,000$5.95
03/31/2022MERRIMACK PHARMACEUTICALS INCMACK188,69401,193,000455,000$6.32
12/31/2021MERRIMACK PHARMACEUTICALS INCMACK188,6940738,000-173,000$3.91
09/30/2021MERRIMACK PHARMACEUTICALS INCMACK188,6942,496911,000-258,000$4.83
03/31/2021MERRIMACK PHARMACEUTICALS INCMACK186,19801,169,000-114,000$6.28
12/31/2020MERRIMACK PHARMACEUTICALS INCMACK186,19801,283,000663,000$6.89
09/30/2020MERRIMACK PHARMACEUTICALS INCMACK186,1980620,0000$3.33
06/30/2020MERRIMACK PHARMACEUTICALS INCMACK186,1980620,000220,000$3.33
03/31/2020MERRIMACK PHARMACEUTICALS INCMACK186,1980400,000-187,000$2.15
12/31/2019MERRIMACK PHARMACEUTICALS INCMACK186,1981,080587,000-244,000$3.15
09/30/2019MERRIMACK PHARMACEUTICALS INCMACK185,118-6,611831,000-329,000$4.49
06/30/2019MERRIMACK PHARMACEUTICALS INCMACK191,729-24,3891,160,000-342,000$6.05
03/31/2019MERRIMACK PHARMACEUTICALS INCMACK216,118-6,3491,502,000643,000$6.95
12/31/2018MERRIMACK PHARMACEUTICALS INCMACK222,467-32,285859,000-499,000$3.86
09/30/2018MERRIMACK PHARMACEUTICALS INCMACK254,7521,0001,358,000112,000$5.33
06/30/2018MERRIMACK PHARMACEUTICALS INCMACK253,752130,4411,246,000253,000$4.91
03/31/2018MERRIMACK PHARMACEUTICALS INCMACK123,31139,500993,000134,000$8.05
12/31/2017MERRIMACK PHARMACEUTICALS INCMACK83,81118,793859,000-86,000$10.25
09/30/2017MERRIMACK PHARMACEUTICALS INCMACK65,01865,018945,000945,000$14.53
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