MACKAY SHIELDS LLC SEC EDGAR Filings (CIK 0000061227)

SEC EDGAR filings, ownership reports, and insider transactions for MACKAY SHIELDS LLC.

Business address
299 Park Avenue, 32 Nd Floor, New York, NY, 10171
Top securities (13F)
SEAGATE HDD CAYMAN, QXOPRB, TETRA TECH INC NEW, UBER TECHNOLOGIES INC, MIRUM PHARMACEUTICALS INC, ADVANCED ENERGY INDS, WESTERN DIGITAL CORP, PG&E CORP, LANTHEUS HLDGS INC, BAPRA, HALOZYME THERAPEUTICS INC, CABLE ONE INC, POST HLDGS INC, NUTANIX INC, APOPRA, OSI SYSTEMS INC, LIBERTY MEDIA CORP DEL, ON SEMICONDUCTOR CORP, IRHYTHM TECHNOLOGIES INC, and LUMENTUM HLDGS INC
Top holdings (Schedule 13G)
FET and FET
State of incorporation
DE
Fiscal year end
31 December
Former names
MACKAY SHIELDS FINANCIAL CORP (to 07 Feb 2001)
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MACKAY SHIELDS LLC has filed 374 SEC EDGAR filings since 10 Feb 1995

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing 27 Oct 2025 30 Sep 2025 028-00046
SCHEDULE 13G/A Open Document Open Filing 18 Sep 2025
N-PX Open Document Open Filing 28 Aug 2025 30 Jun 2025 028-00046
13F-HR Open Document Open Filing 24 Jul 2025 30 Jun 2025 028-00046
13F-HR Open Document Open Filing 29 Apr 2025 31 Mar 2025 028-00046
13F-HR Open Document Open Filing 04 Feb 2025 31 Dec 2024 028-00046
SCHEDULE 13G/A Open Document Open Filing 22 Jan 2025
13F-HR Open Document Open Filing 31 Oct 2024 30 Sep 2024 028-00046
N-PX Open Document Open Filing 30 Aug 2024 30 Jun 2024 028-00046
13F-HR Open Document Open Filing 08 Aug 2024 30 Jun 2024 028-00046
13F-HR Open Document Open Filing 03 May 2024 31 Mar 2024 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 12 Apr 2024
3 Open Document Open Filing 3 25 Mar 2024 25 Mar 2024 811-23905
13F-HR Open Document Open Filing 02 Feb 2024 31 Dec 2023 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2024
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2024
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2024
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2024
13F-HR Open Document Open Filing 25 Oct 2023 30 Sep 2023 028-00046
13F-HR Open Document Open Filing 27 Jul 2023 30 Jun 2023 028-00046
13F-HR Open Document Open Filing 27 Apr 2023 31 Mar 2023 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 13 Apr 2023
13F-HR Open Document Open Filing 31 Jan 2023 31 Dec 2022 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 17 Jan 2023
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 13 Jan 2023
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 06 Jan 2023
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 06 Jan 2023
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 06 Jan 2023
13F-HR Open Document Open Filing 02 Nov 2022 30 Sep 2022 028-00046
13F-HR Open Document Open Filing 03 Aug 2022 30 Jun 2022 028-00046
13F-HR Open Document Open Filing 13 May 2022 31 Mar 2022 028-00046
3 Open Document Open Filing 10 Feb 2022 10 Feb 2022 811-23713
13F-HR Open Document Open Filing 04 Feb 2022 31 Dec 2021 028-00046
13F-HR/A Open Document Open Filing 18 Jan 2022 30 Sep 2021 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 13 Jan 2022
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 12 Jan 2022
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 12 Jan 2022
13F-HR Open Document Open Filing 12 Nov 2021 30 Sep 2021 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 28 Oct 2021
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 28 Oct 2021
13F-HR Open Document Open Filing 13 Aug 2021 30 Jun 2021 028-00046
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 25 May 2021
13F-HR Open Document Open Filing 14 May 2021 31 Mar 2021 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 24 Feb 2021
3 Open Document Open Filing 23 Feb 2021 23 Feb 2021 811-23586
13F-HR Open Document Open Filing 16 Feb 2021 31 Dec 2020 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2021
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2021
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2021
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2021
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2021
13F-HR Open Document Open Filing 04 Nov 2020 30 Sep 2020 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 05 Oct 2020
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 01 Oct 2020
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 01 Oct 2020
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 08 Sep 2020
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 Aug 2020
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 Aug 2020
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 Aug 2020
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 Aug 2020
13F-HR Open Document Open Filing 31 Jul 2020 30 Jun 2020 028-00046
13F-HR Open Document Open Filing 08 May 2020 31 Mar 2020 028-00046
13F-HR Open Document Open Filing 11 Feb 2020 31 Dec 2019 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2020
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 07 Jan 2020
13F-HR Open Document Open Filing 01 Nov 2019 30 Sep 2019 028-00046
13F-HR Open Document Open Filing 13 Aug 2019 30 Jun 2019 028-00046
3 Open Document Open Filing 25 Jul 2019 25 Jul 2019 811-23434
13F-HR/A Open Document Open Filing 15 May 2019 31 Mar 2019 028-00046
13F-HR Open Document Open Filing 13 May 2019 31 Mar 2019 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 13 Mar 2019
13F-HR Open Document Open Filing 14 Feb 2019 31 Dec 2018 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 10 Jan 2019
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 10 Jan 2019
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 10 Jan 2019
13F-HR Open Document Open Filing 14 Nov 2018 30 Sep 2018 028-00046
3 Open Document Open Filing 25 Oct 2018 25 Oct 2018 811-23366
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 16 Aug 2018
13F-HR Open Document Open Filing 06 Aug 2018 30 Jun 2018 028-00046
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 May 2018
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 May 2018
13F-HR Open Document Open Filing 03 May 2018 31 Mar 2018 028-00046
13F-HR Open Document Open Filing 24 Jan 2018 31 Dec 2017 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2018
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2018
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2018
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 11 Jan 2018
13F-HR Open Document Open Filing 24 Oct 2017 30 Sep 2017 028-00046
13F-HR Open Document Open Filing 13 Jul 2017 30 Jun 2017 028-00046
144 Open Document Open Filing FORM 144 14 Jun 2017
144 Open Document Open Filing FORM 144 17 May 2017
144 Open Document Open Filing FORM 144 25 Apr 2017
13F-HR Open Document Open Filing 20 Apr 2017 31 Mar 2017 028-00046
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 08 Mar 2017
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 03 Feb 2017
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 31 Jan 2017
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 30 Jan 2017
13F-HR Open Document Open Filing 10 Jan 2017 31 Dec 2016 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 10 Jan 2017
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 10 Jan 2017
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 06 Jan 2017
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 06 Jan 2017
13F-HR Open Document Open Filing 20 Oct 2016 30 Sep 2016 028-00046
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 11 Oct 2016
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 04 Aug 2016
13F-HR Open Document Open Filing 25 Jul 2016 30 Jun 2016 028-00046
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 10 Jun 2016
SC 13G Open Document Open Filing MACKAY SHIELDS LLC 10 Jun 2016
13F-HR Open Document Open Filing 21 Apr 2016 31 Mar 2016 028-00046
13F-HR Open Document Open Filing 19 Jan 2016 31 Dec 2015 028-00046
13F-HR Open Document Open Filing 22 Oct 2015 30 Sep 2015 028-00046
13F-HR Open Document Open Filing 03 Aug 2015 30 Jun 2015 028-00046
3 Open Document Open Filing OWNERSHIP DOCUMENT 12 May 2015 30 Apr 2015 001-11263
SC 13D Open Document Open Filing SCHEDULE 13D 12 May 2015
13F-HR Open Document Open Filing 05 May 2015 31 Mar 2015 028-00046
13F-HR Open Document Open Filing 29 Jan 2015 31 Dec 2014 028-00046
13F-HR Open Document Open Filing 24 Oct 2014 30 Sep 2014 028-00046
13F-HR Open Document Open Filing 22 Jul 2014 30 Jun 2014 028-00046
13F-HR Open Document Open Filing 08 May 2014 31 Mar 2014 028-00046
SC 13G/A Open Document Open Filing 10 Feb 2014
13F-HR Open Document Open Filing 28 Jan 2014 31 Dec 2013 028-00046
SC 13G/A Open Document Open Filing MACKAY SHIELDS LLC 15 Jan 2014
13F-HR Open Document Open Filing 01 Nov 2013 30 Sep 2013 028-00046
13F-HR Open Document Open Filing 07 Aug 2013 30 Jun 2013 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 24 Apr 2013 31 Mar 2013 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 22 Jan 2013 31 Dec 2012 028-00046
SC 13G/A Open Document Open Filing 14 Jan 2013
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 23 Oct 2012 30 Sep 2012 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 31 Jul 2012 30 Jun 2012 028-00046
3 Open Document Open Filing PRIMARY DOCUMENT 27 Jun 2012 26 Jun 2012 811-22551
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 01 May 2012 31 Mar 2012 028-00046
SC 13G/A Open Document Open Filing 27 Jan 2012
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 18 Jan 2012 31 Dec 2011 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 02 Nov 2011 30 Sep 2011 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 29 Jul 2011 30 Jun 2011 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 13 May 2011 31 Mar 2011 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 27 Jan 2011 31 Dec 2010 028-00046
SC 13G/A Open Document Open Filing 10 Jan 2011
SC 13G/A Open Document Open Filing 29 Nov 2010
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 28 Oct 2010 30 Sep 2010 028-00046
3 Open Document Open Filing 27 Sep 2010 27 Sep 2010 811-22442
SC 13G Open Document Open Filing 10 Sep 2010
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 02 Aug 2010 30 Jun 2010 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 11 May 2010 31 Mar 2010 028-00046
13F-HR Open Document Open Filing MACKAY SHIELDS LLC 01 Feb 2010 31 Dec 2009 028-00046
SC 13G/A Open Document Open Filing 07 Jan 2010
SC 13G/A Open Document Open Filing 07 Jan 2010