Merrimack Pharmaceuticals, Inc. - 12 Year Stock Price History | MACK

Historical daily share price chart and data for Merrimack Pharmaceuticals, Inc. from 2012 to 2024 adjusted for splits and dividends. MACK was delisted after May 17, 2024.
  • The latest closing stock price for Merrimack Pharmaceuticals, Inc. on May 17, 2024 is 15.13.
  • The all-time high Merrimack Pharmaceuticals, Inc. closing stock price was 65.97 on April 23, 2015.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
Merrimack Pharmaceuticals, Inc. Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2024 14.3393 13.3100 15.1300 13.0600 15.1300 12.83%
2023 12.2515 11.6500 13.4100 11.3500 13.4100 17.02%
2022 6.0257 3.9700 12.5100 3.0100 11.4600 193.09%
2021 5.8072 6.8900 8.7000 3.7500 3.9100 -43.25%
2020 3.7434 3.1900 8.3100 1.6300 6.8900 118.73%
2019 4.0803 2.8334 5.3546 2.8334 3.1500 16.94%
2018 4.9957 7.4323 8.1163 2.6170 2.6938 -62.34%
2017 11.6424 19.3025 19.7368 7.0834 7.1532 -63.67%
2016 29.2395 37.3504 42.2243 19.6886 19.6886 -48.35%
2015 50.8997 55.1570 65.9664 36.5301 38.1225 -30.09%
2014 33.8084 26.9753 54.5297 21.1845 54.5297 111.97%
2013 23.9763 30.0637 33.7794 9.9312 25.7255 -12.46%