Merrimack Pharmaceuticals Inc reports

Location
One Broadway, 14 Th Floor, Cambridge, MA
State of incorporation
DE
Fiscal year end
December 31
Data updated at
7/19/2024, 08:58 AM
Form type Sec Links Description Filing date Reporting date
10-Q Report | Data 10-Q May 15, 2024 Mar 31, 2024
8-K Report | Data FORM 8-K May 10, 2024 May 10, 2024
8-K Report | Data FORM 8-K May 9, 2024 May 8, 2024
8-K Report | Data 8-K Apr 30, 2024 Apr 30, 2024
8-K Report | Data 8-K Mar 27, 2024 Mar 27, 2024
10-K/A Report | Data 10-K/A Mar 21, 2024 Dec 31, 2023
8-K Report | Data 8-K Mar 7, 2024 Mar 7, 2024
10-K Report | Data 10-K Mar 7, 2024 Dec 31, 2023
SC 13G/A Report Mar 7, 2024
SC 13G/A Report AMENDMENT NO. 4 TO THE SCHEDULE 13G Feb 14, 2024
8-K Report | Data 8-K Feb 13, 2024 Feb 13, 2024
SC 13G Report Jan 31, 2024
SC 13D/A Report Jan 25, 2024
SC 13D/A Report SC 13D/A Dec 13, 2023
8-K Report | Data 8-K Nov 2, 2023 Nov 2, 2023
10-Q Report | Data 10-Q Nov 2, 2023 Sep 30, 2023
SC 13D/A Report SC 13D/A Aug 14, 2023
8-K Report | Data 8-K Aug 3, 2023 Aug 3, 2023
10-Q Report | Data 10-Q Aug 3, 2023 Jun 30, 2023
8-K Report | Data 8-K Jun 7, 2023 Jun 6, 2023
8-K Report | Data 8-K May 4, 2023 May 4, 2023
10-Q Report | Data 10-Q May 4, 2023 Mar 31, 2023
8-K Report | Data 8-K Mar 9, 2023 Mar 9, 2023
10-K Report | Data 10-K Mar 9, 2023 Dec 31, 2022
SC 13G/A Report SCHEDULE 13G/A, AMENDMENT #1 Feb 14, 2023
SC 13G/A Report AMENDMENT NO. 3 TO THE SCHEDULE 13G Feb 13, 2023
8-K Report | Data 8-K Dec 5, 2022 Dec 2, 2022
8-K Report | Data 8-K Nov 9, 2022 Nov 9, 2022
8-K Report | Data 8-K Nov 3, 2022 Nov 3, 2022
10-Q Report | Data 10-Q Nov 3, 2022 Sep 30, 2022
8-K Report | Data 8-K Aug 4, 2022 Aug 4, 2022
10-Q Report | Data 10-Q Aug 4, 2022 Jun 30, 2022
SC 13G Report SCHEDULE 13G Aug 4, 2022
8-K Report | Data 8-K Aug 3, 2022 Aug 3, 2022
8-K Report | Data 8-K Jun 9, 2022 Jun 6, 2022
8-K Report | Data 8-K May 5, 2022 May 5, 2022
10-Q Report | Data 10-Q May 5, 2022 Mar 31, 2022
8-K Report | Data 8-K Apr 27, 2022 Apr 22, 2022
8-K Report | Data 8-K Mar 9, 2022 Mar 9, 2022
10-K Report | Data 10-K Mar 9, 2022 Dec 31, 2021
SC 13G/A Report AMENDMENT NO. 2 TO THE SCHEDULE 13G Feb 14, 2022
SC 13G/A Report SC 13G/A Feb 14, 2022
8-K Report | Data 8-K Nov 4, 2021 Nov 4, 2021
10-Q Report | Data 10-Q Nov 4, 2021 Sep 30, 2021
8-K Report | Data 8-K Aug 5, 2021 Aug 5, 2021
10-Q Report | Data 10-Q Aug 5, 2021 Jun 30, 2021
8-K Report | Data 8-K Jun 14, 2021 Jun 10, 2021
10-Q Report | Data 10-Q May 6, 2021 Mar 31, 2021
8-K Report | Data 8-K Mar 11, 2021 Mar 10, 2021
10-K Report | Data 10-K Mar 10, 2021 Dec 31, 2020
SC 13G/A Report SEC SCHEDULE 13G Feb 12, 2021
SC 13G/A Report AMENDMENT NO. 1 Feb 12, 2021
SC 13G/A Report SCHEDULE 13G/A Feb 12, 2021
SC 13D/A Report SC 13D/A Dec 3, 2020
SC 13D/A Report SC 13D/A Dec 2, 2020
8-K Report | Data 8-K Nov 5, 2020 Nov 5, 2020
10-Q Report | Data 10-Q Q3 2020 Nov 4, 2020 Sep 30, 2020
8-K Report | Data 8-K Aug 7, 2020 Aug 7, 2020
10-Q Report | Data 10-Q Aug 7, 2020 Jun 30, 2020
SC 13D/A Report SC 13D/A Jul 27, 2020
SC 13D/A Report SC 13D/A Jul 24, 2020
8-K Report 8-K May 28, 2020 May 28, 2020
10-Q Report | Data 10-Q May 7, 2020 Mar 31, 2020
8-K Report 8-K Mar 30, 2020 Mar 27, 2020
10-K Report | Data 10-K Mar 12, 2020 Dec 31, 2019
8-K Report 8-K Feb 21, 2020 Feb 19, 2020
SC 13G/A Report AMENDMENT NO 2 TO THE SCHEDULE 13G Feb 14, 2020
SC 13G Report SC 13G Feb 14, 2020
SC 13G Report SCHEDULE 13G Feb 12, 2020
8-K Report 8-K Dec 3, 2019 Dec 3, 2019
SC 13D/A Report AMENDMENT NO. 6 TO THE SCHEDULE 13D Nov 19, 2019
10-Q Report | Data 10-Q Nov 12, 2019 Sep 30, 2019
8-K Report 8-K Oct 21, 2019 Oct 17, 2019
SC 13D/A Report SC 13D/A Sep 30, 2019
SC 13D/A Report SC 13D/A Sep 30, 2019
SC 13D/A Report AMENDMENT NO. 5 TO THE SCHEDULE 13D Sep 24, 2019
8-K Report 8-K Sep 20, 2019 Sep 17, 2019
SC 13D Report SC 13D Sep 19, 2019
SC 13D Report SC 13D Sep 19, 2019
8-K Report 8-K Jul 26, 2019 Jul 24, 2019
SC 13D/A Report AMENDMENT NO. 4 TO THE SCHEDULE 13D Jul 24, 2019
8-K Report 8-K Jul 17, 2019 Jul 15, 2019
10-Q Report | Data 10-Q Jul 17, 2019 Jun 30, 2019
8-K Report 8-K Jul 12, 2019 Jul 12, 2019
8-K/A Report 8-K/A Jul 1, 2019 May 23, 2019
8-K Report FORM 8-K Jul 1, 2019 Jun 25, 2019
8-K Report FORM 8-K Jul 1, 2019 Jun 28, 2019
8-K Report 8-K Jun 24, 2019 Jun 24, 2019
8-K Report 8-K May 30, 2019 May 23, 2019
SC 13G/A Report SC 13G/A May 13, 2019
10-Q Report | Data 10-Q May 10, 2019 Mar 31, 2019
8-K Report 8-K May 10, 2019 May 10, 2019
10-K/A Report 10-K/A Apr 30, 2019 Dec 31, 2018
8-K Report 8-K Apr 30, 2019 Apr 25, 2019
SC 13D/A Report AMENDMENT NO. 3 TO THE SCHEDULE 13D Apr 17, 2019
8-K Report 8-K Apr 16, 2019 Apr 10, 2019
SC 13D/A Report AMENDMENT NO. 2 TO THE SCHEDULE 13D Mar 14, 2019
10-K Report | Data 10-K Mar 6, 2019 Dec 31, 2018
8-K Report 8-K Mar 6, 2019 Mar 6, 2019
8-K Report 8-K Feb 15, 2019 Feb 11, 2019
SC 13G/A Report AMENDMENT NO. 1 TO THE SCHEDULE 13G Feb 14, 2019
SC 13G Report Feb 14, 2019
SC 13G Report Feb 8, 2019
SC 13D/A Report AMENDMENT NO. 1 TO THE SCHEDULE 13D Dec 19, 2018
10-Q Report | Data 10-Q Nov 7, 2018 Sep 30, 2018
8-K Report 8-K Nov 7, 2018 Nov 7, 2018
SC 13D Report SCHEDULE 13D Nov 2, 2018
10-Q Report | Data 10-Q Aug 7, 2018 Jun 30, 2018
8-K Report FORM 8-K Aug 7, 2018 Aug 7, 2018
SC 13G/A Report Jul 10, 2018
8-K Report 8-K Jul 3, 2018 Jul 2, 2018
8-K Report 8-K Jun 15, 2018 Jun 12, 2018
SC 13G/A Report May 10, 2018
10-Q Report | Data 10-Q May 8, 2018 Mar 31, 2018
8-K Report 8-K May 8, 2018 May 8, 2018
SC 13G Report THE SCHEDULE 13G Apr 10, 2018
8-K Report FORM 8-K Mar 29, 2018 Mar 27, 2018
10-K Report | Data 10-K Mar 12, 2018 Dec 31, 2017
8-K Report 8-K Mar 12, 2018 Mar 12, 2018
8-K Report FORM 8-K Feb 16, 2018 Feb 15, 2018
SC 13G/A Report CONSONANCE CAPITAL MANAGEMENT LP Feb 14, 2018
SC 13G/A Report Feb 14, 2018
SC 13G/A Report Feb 14, 2018
SC 13G/A Report Feb 13, 2018
SC 13G Report Jan 25, 2018
8-K Report | Data FORM 8-K Dec 15, 2017 Dec 15, 2017
8-K Report 8-K Nov 30, 2017 Nov 26, 2017
8-K Report 8-K Nov 13, 2017 Nov 10, 2017
10-Q Report | Data 10-Q Nov 8, 2017 Sep 30, 2017
8-K Report FORM 8-K Nov 8, 2017 Nov 8, 2017
8-K Report FORM 8-K Oct 13, 2017 Oct 13, 2017
8-K Report 8-K Oct 10, 2017 Oct 6, 2017
8-K Report FORM 8-K Sep 15, 2017 Sep 13, 2017
8-K Report 8-K Sep 6, 2017 Sep 5, 2017
8-K Report 8-K Aug 14, 2017 Aug 10, 2017
10-Q Report | Data 10-Q Aug 9, 2017 Jun 30, 2017
8-K Report 8-K Aug 9, 2017 Aug 9, 2017
8-K Report FORM 8-K Jul 14, 2017 Jul 10, 2017
8-K Report 8-K Jun 16, 2017 Jun 14, 2017
8-K Report FORM 8-K May 25, 2017 May 22, 2017
10-Q Report | Data FORM 10-Q May 10, 2017 Mar 31, 2017
8-K Report 8-K May 10, 2017 May 10, 2017
10-K/A Report 10-K/A May 1, 2017 Dec 31, 2016
8-K Report 8-K Apr 7, 2017 Apr 6, 2017
SC 13G/A Report WESTFIELD CAPITAL MANAGEMENT COMPANY, L.P. Apr 7, 2017
8-K Report FORM 8-K Apr 5, 2017 Mar 30, 2017
8-K Report FORM 8-K Mar 30, 2017 Mar 30, 2017
10-K Report | Data 10-K Mar 1, 2017 Dec 31, 2016
8-K Report 8-K Mar 1, 2017 Mar 1, 2017
SC 13G/A Report Feb 14, 2017
SC 13G/A Report Feb 14, 2017
SC 13G/A Report Feb 14, 2017
SC 13G Report CONSONANCE CAPITAL MANAGEMENT LP Feb 13, 2017
SC 13G/A Report WESTFIELD CAPITAL MANAGEMENT COMPANY, L.P. Feb 10, 2017
SC 13G/A Report Feb 10, 2017
8-K Report 8-K Feb 7, 2017 Feb 6, 2017
8-K Report 8-K Feb 2, 2017 Jan 27, 2017
SC 13G/A Report Jan 25, 2017
8-K Report FORM 8-K Jan 20, 2017 Jan 16, 2017
8-K Report FORM 8-K Jan 9, 2017 Jan 9, 2017
10-Q Report | Data FORM 10-Q Nov 9, 2016 Sep 30, 2016
8-K Report FORM 8-K Nov 9, 2016 Nov 9, 2016
8-K Report 8-K Oct 14, 2016 Oct 13, 2016
8-K Report 8-K Oct 3, 2016 Sep 29, 2016
10-Q Report | Data FORM 10-Q Aug 4, 2016 Jun 30, 2016
8-K Report 8-K Aug 4, 2016 Aug 4, 2016
8-K Report FORM 8-K Jun 16, 2016 Jun 14, 2016
10-Q Report | Data FORM 10-Q May 2, 2016 Mar 31, 2016
8-K Report | Data FORM 8-K May 2, 2016 May 2, 2016
8-K Report 8-K Apr 14, 2016 Apr 13, 2016
10-K Report | Data FORM 10-K Feb 26, 2016 Dec 31, 2015
8-K Report FORM 8-K Feb 25, 2016 Feb 25, 2016
8-K Report FORM 8-K Feb 12, 2016 Feb 8, 2016
SC 13G/A Report Feb 12, 2016
SC 13G Report WESTFIELD CAPITAL MANAGEMENT COMPANY, L.P. Feb 10, 2016
SC 13G Report Feb 10, 2016
SC 13G Report Feb 10, 2016
SC 13G/A Report Feb 10, 2016
SC 13G/A Report Jan 26, 2016
8-K Report FORM 8-K Dec 22, 2015 Dec 22, 2015
10-Q Report | Data 10-Q Nov 9, 2015 Sep 30, 2015
8-K Report FORM 8-K Nov 9, 2015 Nov 9, 2015
10-Q Report | Data 10-Q Aug 10, 2015 Jun 30, 2015
8-K Report FORM 8-K Aug 10, 2015 Aug 10, 2015
8-K Report FORM 8-K Aug 6, 2015 Aug 4, 2015
8-K Report 8-K Jul 13, 2015 Jul 13, 2015
8-K Report FORM 8-K Jun 16, 2015 Jun 15, 2015
8-K Report FORM 8-K May 14, 2015 May 12, 2015
10-Q Report | Data FORM 10-Q May 7, 2015 Mar 31, 2015
8-K Report 8-K May 7, 2015 May 7, 2015
10-K Report | Data FORM 10-K Feb 27, 2015 Dec 31, 2014
8-K Report FORM 8-K Feb 26, 2015 Feb 26, 2015
8-K Report 8-K Feb 13, 2015 Feb 9, 2015
SC 13G/A Report SC 13G/A Feb 13, 2015
SC 13G/A Report Feb 13, 2015
SC 13G Report Feb 11, 2015
SC 13G/A Report 13G FINAL ANNUAL FILING - MACK Feb 10, 2015
SC 13G Report Feb 2, 2015
SC 13G/A Report Feb 2, 2015
8-K Report 8-K Jan 22, 2015 Jan 15, 2015
8-K Report FORM 8-K Dec 17, 2014 Dec 15, 2014
8-K Report FORM 8-K Nov 17, 2014 Nov 11, 2014
10-Q Report | Data FORM 10-Q Nov 10, 2014 Sep 30, 2014
8-K Report FORM 8-K Nov 10, 2014 Nov 10, 2014
8-K Report FORM 8-K Sep 24, 2014 Sep 22, 2014
10-Q Report | Data 10-Q Aug 11, 2014 Jun 30, 2014
8-K Report FORM 8-K Aug 11, 2014 Aug 11, 2014
8-K Report FORM 8-K Jun 30, 2014 Jun 25, 2014
8-K Report FORM 8-K Jun 19, 2014 Jun 17, 2014
8-K Report 8-K May 19, 2014 May 13, 2014
10-Q Report | Data FORM 10-Q May 6, 2014 Mar 31, 2014
8-K Report FORM 8-K May 1, 2014 May 1, 2014
10-K Report | Data 10-K Mar 4, 2014 Dec 31, 2013
8-K Report FORM 8-K Feb 27, 2014 Feb 27, 2014
8-K Report FORM 8-K Feb 14, 2014 Feb 11, 2014
SC 13G/A Report Feb 14, 2014
SC 13G Report 13G INITIAL ANNUAL FILING - MACK Feb 7, 2014
SC 13G Report Feb 5, 2014
SC 13G/A Report NONE Jan 8, 2014
8-K Report 8-K Nov 26, 2013 Nov 25, 2013
10-Q Report | Data 10-Q Nov 8, 2013 Sep 30, 2013
8-K Report 8-K Nov 7, 2013 Nov 7, 2013
8-K Report 8-K Sep 9, 2013 Sep 9, 2013
10-Q Report | Data 10-Q Aug 8, 2013 Jun 30, 2013
8-K Report 8-K Aug 8, 2013 Aug 8, 2013
8-K Report 8-K Jul 29, 2013 Jul 24, 2013
8-K Report 8-K Jul 18, 2013 Jul 17, 2013
8-K Report 8-K Jul 12, 2013 Jul 10, 2013
8-K Report 8-K Jul 10, 2013 Jul 10, 2013
8-K Report 8-K Jun 13, 2013 Jun 11, 2013
10-Q Report | Data 10-Q May 13, 2013 Mar 31, 2013
8-K Report 8-K May 13, 2013 May 13, 2013
10-K Report | Data 10-K Mar 20, 2013 Dec 31, 2012
8-K Report 8-K Mar 14, 2013 Mar 14, 2013
SC 13G Report NONE Feb 14, 2013
8-K Report 8-K Dec 17, 2012 Dec 14, 2012
10-Q Report | Data 10-Q Nov 14, 2012 Sep 30, 2012
8-K Report 8-K Nov 14, 2012 Nov 8, 2012
SC 13G/A Report Nov 13, 2012
8-K Report 8-K Sep 14, 2012 Sep 11, 2012
8-K Report 8-K Aug 30, 2012 Aug 24, 2012
10-Q Report | Data 10-Q Aug 14, 2012 Jun 30, 2012
8-K Report 8-K Aug 10, 2012 Aug 10, 2012
8-K Report 8-K Jul 13, 2012 Jul 9, 2012
8-K Report 8-K Jun 18, 2012 Jun 12, 2012
10-Q Report | Data 10-Q May 15, 2012 Mar 31, 2012
8-K Report 8-K May 15, 2012 May 15, 2012
8-K Report 8-K Apr 27, 2012 Apr 27, 2012
8-K Report 8-K Apr 10, 2012 Apr 4, 2012
SC 13G Report Apr 10, 2012
SC 13G Report SCHEDULE 13G Apr 2, 2012
10-K Report 10-K Mar 30, 2012 Dec 31, 2011