Mhr Fund Management Llc

Entity
Company
Business address
1345 Avenue Of The Americas,, 42 Nd Floor, 10105 New York, NY
Phone
212.262.0005
State of incorporation
DE
Fiscal year end
December 31
Former names
SEEMORE ADVISORS LLC (to 3/10/2006)
13F signature
Janet Yeung - Authorized Signatory
13D/G Schedule signature
MARK H. RACHESKY, M.D. - Attorney-in-Fact
All SEC filings
View on sec.gov
Mhr Fund Management Llc has filed 360 SEC EDGAR filings since 2/17/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing Nov 14, 2025 Sep 30, 2025 028-10786
N-PX Open Document Open Filing Aug 28, 2025 Jun 30, 2025 028-10786
13F-HR Open Document Open Filing Aug 14, 2025 Jun 30, 2025 028-10786
SCHEDULE 13D/A Open Document Open Filing Jun 4, 2025
13F-HR Open Document Open Filing May 15, 2025 Mar 31, 2025 028-10786
SCHEDULE 13D Open Document Open Filing May 8, 2025
SCHEDULE 13D/A Open Document Open Filing May 8, 2025
13F-HR Open Document Open Filing Feb 14, 2025 Dec 31, 2024 028-10786
13F-HR Open Document Open Filing Nov 14, 2024 Sep 30, 2024 028-10786
4 Open Document Open Filing 4 Oct 21, 2024 Oct 18, 2024 001-12936
SC 13D/A Open Document Open Filing SC 13D/A Oct 21, 2024
13F-HR Open Document Open Filing Aug 14, 2024 Jun 30, 2024 028-10786
4 Open Document Open Filing 4 Jun 17, 2024 Jun 13, 2024 001-12936
13F-HR Open Document Open Filing May 15, 2024 Mar 31, 2024 028-10786
SC 13D/A Open Document Open Filing SC 13D/A May 14, 2024
SC 13D/A Open Document Open Filing SC 13D/A May 14, 2024
SC 13D/A Open Document Open Filing SC 13D/A May 14, 2024
13F-HR Open Document Open Filing Feb 14, 2024 Dec 31, 2023 028-10786
SC 13G/A Open Document Open Filing SC 13G/A Feb 9, 2024
13F-HR Open Document Open Filing Nov 14, 2023 Sep 30, 2023 028-10786
13F-HR Open Document Open Filing Aug 14, 2023 Jun 30, 2023 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Jun 16, 2023 Jun 13, 2023 001-12936
13F-HR Open Document Open Filing May 15, 2023 Mar 31, 2023 028-10786
13F-HR Open Document Open Filing Feb 14, 2023 Dec 31, 2022 028-10786
SC 13G Open Document Open Filing SC 13G Dec 30, 2022
SC 13D/A Open Document Open Filing SC 13D/A Nov 21, 2022
13F-HR Open Document Open Filing Nov 14, 2022 Sep 30, 2022 028-10786
13F-HR Open Document Open Filing Aug 15, 2022 Jun 30, 2022 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Jun 15, 2022 Jun 13, 2022 001-12936
13F-HR Open Document Open Filing May 16, 2022 Mar 31, 2022 028-10786
13F-HR Open Document Open Filing Feb 14, 2022 Dec 31, 2021 028-10786
SC 13D Open Document Open Filing SC 13D Nov 23, 2021
4 Open Document Open Filing FORM 4 SUBMISSION Nov 22, 2021 Nov 19, 2021 001-14180
SC 13D/A Open Document Open Filing AMENDMENT NO. 30 TO SCHEDULE 13D Nov 22, 2021
13F-HR Open Document Open Filing Nov 15, 2021 Sep 30, 2021 028-10786
13F-HR Open Document Open Filing Aug 16, 2021 Jun 30, 2021 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 25 TO SCHEDULE 13D Jul 2, 2021
4 Open Document Open Filing FORM 4 SUBMISSION Jun 21, 2021 Jun 16, 2021 001-12936
13F-HR Open Document Open Filing May 17, 2021 Mar 31, 2021 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 24 TO SCHEDULE 13D Apr 29, 2021
13F-HR Open Document Open Filing Feb 16, 2021 Dec 31, 2020 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 23 TO SCHEDULE 13D Dec 17, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 29 TO SCHEDULE 13D Nov 25, 2020
13F-HR Open Document Open Filing Nov 16, 2020 Sep 30, 2020 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 22 TO SCHEDULE 13D Nov 9, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 21 TO SCHEDULE 13D Oct 16, 2020
13F-HR Open Document Open Filing Aug 14, 2020 Jun 30, 2020 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Jun 17, 2020 Jun 15, 2020 001-12936
13F-HR Open Document Open Filing May 15, 2020 Mar 31, 2020 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 27 TO SCHEDULE 13D May 6, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 28 TO SCHEDULE 13D May 6, 2020
SC 13D/A Open Document Open Filing AMENDMENT NO. 26 TO SCHEDULE 13D Mar 17, 2020
13F-HR Open Document Open Filing Feb 14, 2020 Dec 31, 2019 028-10786
13F-HR Open Document Open Filing Nov 14, 2019 Sep 30, 2019 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 25 TO SCHEDULE 13D Oct 3, 2019
4 Open Document Open Filing FORM 4 SUBMISSION Sep 17, 2019 Sep 13, 2019 001-12936
13F-HR Open Document Open Filing Aug 14, 2019 Jun 30, 2019 028-10786
13F-HR Open Document Open Filing May 15, 2019 Mar 31, 2019 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 9 TO SCHEDULE 13D Feb 26, 2019
13F-HR Open Document Open Filing Feb 14, 2019 Dec 31, 2018 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 24 TO SCHEDULE 13D Dec 21, 2018
13F-HR Open Document Open Filing Nov 14, 2018 Sep 30, 2018 028-10786
13F-HR Open Document Open Filing Aug 14, 2018 Jun 30, 2018 028-10786
13F-HR Open Document Open Filing May 15, 2018 Mar 31, 2018 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 20 TO SCHEDULE 13D Apr 18, 2018
13F-HR Open Document Open Filing Feb 14, 2018 Dec 31, 2017 028-10786
13F-HR Open Document Open Filing Nov 14, 2017 Sep 30, 2017 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 29 TO SCHEDULE 13D Aug 15, 2017
13F-HR Open Document Open Filing Aug 14, 2017 Jun 30, 2017 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 28 TO SCHEDULE 13D Jul 5, 2017
4 Open Document Open Filing FORM 4 SUBMISSION Jul 5, 2017 Jun 30, 2017 000-17758
13F-HR Open Document Open Filing May 15, 2017 Mar 31, 2017 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO.19 TO SCHEDULE 13D Mar 3, 2017
13F-HR Open Document Open Filing Feb 14, 2017 Dec 31, 2016 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Jan 4, 2017 Dec 31, 2016 000-17758
4 Open Document Open Filing FORM 4 SUBMISSION Dec 12, 2016 Dec 8, 2016 001-14880
SC 13D/A Open Document Open Filing AMENDMENT NO. 23 TO SCHEDULE 13D Dec 9, 2016
SC 13D/A Open Document Open Filing AMENDMENT NO. 27 TO SCHEDULE 13D Dec 9, 2016
13F-HR Open Document Open Filing Nov 14, 2016 Sep 30, 2016 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 8 TO SCHEDULE 13D Oct 4, 2016
SC 13D/A Open Document Open Filing AMENDMENT NO. 18 TO SCHEDULE 13D Sep 22, 2016
4/A Open Document Open Filing FORM 4/A SUBMISSION Sep 15, 2016 Nov 10, 2015 001-14880
SC 13D/A Open Document Open Filing AMENDMENT NO. 17 TO SCHEDULE 13D Sep 6, 2016
13F-HR Open Document Open Filing Aug 15, 2016 Jun 30, 2016 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Jul 5, 2016 Jun 30, 2016 000-17758
SC 13D/A Open Document Open Filing AMENDMENT NO. 26 TO SCHEDULE 13D Jul 5, 2016
SC 13D/A Open Document Open Filing FORM SC 13D/A Jul 1, 2016
13F-HR Open Document Open Filing May 16, 2016 Mar 31, 2016 028-10786
4/A Open Document Open Filing FORM 4/A SUBMISSION Mar 11, 2016 Mar 4, 2016 001-14180
SC 13D/A Open Document Open Filing AMENDMENT NO. 27 TO SCHEDULE 13D Mar 11, 2016
4 Open Document Open Filing FORM 4 SUBMISSION Mar 10, 2016 Mar 8, 2016 001-14180
SC 13D/A Open Document Open Filing AMENDMENT NO. 26 TO SCHEDULE 13D Mar 10, 2016
4 Open Document Open Filing FORM 4 SUBMISSION Mar 7, 2016 Mar 4, 2016 001-14180
SC 13D/A Open Document Open Filing AMENDMENT NO. 25 TO SCHEDULE 13D Mar 7, 2016
SC 13D/A Open Document Open Filing AMENDMENT NO. 7 Feb 29, 2016
13F-HR Open Document Open Filing Feb 16, 2016 Dec 31, 2015 028-10786
SC 13D/A Open Document Open Filing SC 13D/A Feb 5, 2016
4 Open Document Open Filing FORM 4 SUBMISSION Jan 5, 2016 Dec 31, 2015 000-17758
SC 13D/A Open Document Open Filing AMENDMENT NO. 16 TO SCHEDULE 13D Dec 18, 2015
13F-HR Open Document Open Filing Nov 16, 2015 Sep 30, 2015 028-10786
SC 13D/A Open Document Open Filing SC 13D/A Nov 13, 2015
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 13, 2015 Nov 10, 2015 001-14880
SC 13D/A Open Document Open Filing AMENDMENT NO. 25 TO SCHEDULE 13D Oct 15, 2015
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Sep 4, 2015
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Sep 4, 2015
SC 13D/A Open Document Open Filing AMENDMENT NO. 15 TO SCHEDULE 13D Sep 4, 2015
SC 13D/A Open Document Open Filing SC 13D/A Aug 24, 2015
13F-HR Open Document Open Filing Aug 14, 2015 Jun 30, 2015 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 14 TO SCHEDULE 13D Jul 27, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Jul 24, 2015 Jul 22, 2015 001-09618
SC 13D/A Open Document Open Filing AMENDMENT NO. 24 TO SCHEDULE 13D Jul 1, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Jul 1, 2015 Jun 30, 2015 000-17758
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Jun 11, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Jun 10, 2015 Jun 8, 2015 001-09618
13F-HR Open Document Open Filing May 15, 2015 Mar 31, 2015 028-10786
SC 13D/A Open Document Open Filing SCHEDULE 13D/A May 15, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Apr 30, 2015 Apr 29, 2015 001-14880
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Apr 30, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Apr 14, 2015 Apr 13, 2015 001-14880
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Apr 9, 2015
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Mar 9, 2015
13F-HR Open Document Open Filing Feb 17, 2015 Dec 31, 2014 028-10786
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Jan 30, 2015
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Jan 30, 2015
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Jan 30, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Jan 5, 2015 Dec 31, 2014 000-17758
SC 13D/A Open Document Open Filing SCHEDULE 13D/A Dec 18, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Dec 17, 2014 Dec 17, 2014 001-09618
SC 13D/A Open Document Open Filing AMENDMENT NO. 6 Dec 11, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Dec 10, 2014 Dec 8, 2014 001-12936
13F-HR Open Document Open Filing Nov 14, 2014 Sep 30, 2014 028-10786
4 Open Document Open Filing FORM 4 SUBMISSION Aug 22, 2014 Aug 20, 2014 000-17758
SC 13D/A Open Document Open Filing SCHEDULE 13D AMENDMENT NO. 23 Aug 22, 2014
13F-HR Open Document Open Filing Aug 14, 2014 Jun 30, 2014 028-10786
SC 13D/A Open Document Open Filing SC 13D/A Jul 31, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Jul 30, 2014 Jul 28, 2014 001-12936
4 Open Document Open Filing FORM 4 SUBMISSION Jul 2, 2014 Jun 30, 2014 000-17758
SC 13D/A Open Document Open Filing SC 13D/A Jun 24, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Jun 2, 2014 Jun 1, 2014 001-12936
13F-HR Open Document Open Filing May 15, 2014 Mar 31, 2014 028-10786
SC 13D/A Open Document Open Filing AMENDMENT NO. 4 TO SCHEDULE 13D Apr 30, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Apr 29, 2014 Apr 25, 2014 001-12936
SC 13D/A Open Document Open Filing SC 13D/A Apr 24, 2014
SC 13D/A Open Document Open Filing AMENDMENT NO. 9 Apr 11, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Apr 10, 2014 Apr 8, 2014 001-09618
4 Open Document Open Filing FORM 4 SUBMISSION Apr 3, 2014 Apr 1, 2014 001-09618
SC 13D/A Open Document Open Filing AMENDMENT NO. 22 TO SCHEDULE 13D Mar 31, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Mar 17, 2014 Mar 13, 2014 001-34865
SC 13D/A Open Document Open Filing AMENDMENT NO. 18 TO SC 13D Mar 17, 2014
SC 13D/A Open Document Open Filing AMENDMENT NO. 8 Mar 11, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Feb 27, 2014 Feb 25, 2014 001-12936
SC 13D/A Open Document Open Filing SC 13D/A Feb 27, 2014
4 Open Document Open Filing FORM 4 SUBMISSION Feb 24, 2014 Feb 20, 2014 001-12936
SC 13D/A Open Document Open Filing SC 13D/A Feb 24, 2014
13F-HR Open Document Open Filing Feb 14, 2014 Dec 31, 2013 028-10786
3 Open Document Open Filing MAIN DOCUMENT DESCRIPTION Jan 21, 2014 Jan 9, 2014 001-12936
SC 13D Open Document Open Filing SCHEDULE 13D Jan 21, 2014
4 Open Document Open Filing MAIN DOCUMENT DESCRIPTION Jan 3, 2014 Dec 31, 2013 000-17758