SIMPLEX TRADING, LLC SEC EDGAR Filings (CIK 0001488542)

SEC EDGAR filings, ownership reports, and insider transactions for SIMPLEX TRADING, LLC.

Business address
230 S. Lasalle Street, Suite 08 500, Chicago, IL, 60604
Top securities (13F)
NVDA, AAPL, MSFT, IWM, UNH, SPY, AMZN, IBIT, INTC, AVGO, BKNG, XLV, IREN, GOOGL, PDD, TSLA, SOFI, MU, CI, and NKE
State of incorporation
DE
Fiscal year end
31 December
Former names
SET TRADING PARTNERS, LLC (to 28 Feb 2014), MULTIPLEX TRADING LLC (to 29 Feb 2012)
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SIMPLEX TRADING, LLC has filed 70 SEC EDGAR filings since 01 Mar 2011

Latest Filings

Recent SEC filings for SIMPLEX TRADING, LLC including 13F-HR, X-17A-5, FOCUSN and more.

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open 13F-HR document View SEC filing for 13F-HR 12 Nov 2025 30 Sep 2025 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 05 Aug 2025 30 Jun 2025 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 12 May 2025 31 Mar 2025 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 03 Mar 2025 31 Dec 2024 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 11 Feb 2025 31 Dec 2024 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 08 Nov 2024 30 Sep 2024 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 25 Jul 2024 30 Jun 2024 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 25 Apr 2024 31 Mar 2024 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 04 Mar 2024 31 Dec 2023 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 04 Mar 2024 31 Dec 2023 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 02 Feb 2024 31 Dec 2023 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 01 Nov 2023 30 Sep 2023 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 04 Aug 2023 30 Jun 2023 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 11 Jul 2023 31 Dec 2022 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 27 Apr 2023 31 Mar 2023 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 02 Feb 2023 31 Dec 2022 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 04 Nov 2022 30 Sep 2022 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 03 Aug 2022 30 Jun 2022 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 02 May 2022 31 Mar 2022 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 04 Mar 2022 31 Dec 2021 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 04 Mar 2022 31 Dec 2021 008-68556
13F-HR/A Open 13F-HR/A document View SEC filing for 13F-HR/A 23 Feb 2022 31 Dec 2021 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 04 Feb 2022 31 Dec 2021 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 28 Oct 2021 30 Sep 2021 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 12 Aug 2021 30 Jun 2021 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 10 May 2021 31 Dec 2020 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 26 Apr 2021 31 Mar 2021 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 01 Mar 2021 31 Dec 2020 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 02 Feb 2021 31 Dec 2020 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 14 Oct 2020 30 Sep 2020 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 13 Jul 2020 30 Jun 2020 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 29 Apr 2020 31 Mar 2020 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 02 Mar 2020 31 Dec 2019 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 02 Mar 2020 31 Dec 2019 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 05 Feb 2020 31 Dec 2019 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 15 Oct 2019 30 Sep 2019 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 26 Jul 2019 30 Jun 2019 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 18 Apr 2019 31 Mar 2019 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 01 Mar 2019 31 Dec 2018 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 01 Mar 2019 31 Dec 2018 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 16 Jan 2019 31 Dec 2018 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 23 Oct 2018 30 Sep 2018 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 30 Jul 2018 30 Jun 2018 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 26 Apr 2018 31 Mar 2018 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 01 Mar 2018 31 Dec 2017 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 10 Jan 2018 31 Dec 2017 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 25 Oct 2017 30 Sep 2017 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 12 Jul 2017 30 Jun 2017 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 21 Apr 2017 31 Mar 2017 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 28 Feb 2017 31 Dec 2016 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 11 Jan 2017 31 Dec 2016 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 07 Oct 2016 30 Sep 2016 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 18 Jul 2016 30 Jun 2016 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 14 Apr 2016 31 Mar 2016 028-16834
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 24 Feb 2016 31 Dec 2015 008-68556
13F-HR Open 13F-HR document View SEC filing for 13F-HR 20 Jan 2016 31 Dec 2015 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 08 Oct 2015 30 Sep 2015 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 08 Jul 2015 30 Jun 2015 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 21 Apr 2015 31 Mar 2015 028-16834
13F-HR Open 13F-HR document View SEC filing for 13F-HR 04 Mar 2015 31 Dec 2014 028-16834
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 26 Feb 2015 31 Dec 2014 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 26 Feb 2015 31 Dec 2014 008-68556
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 28 Feb 2014 31 Dec 2013 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 28 Feb 2014 31 Dec 2013 008-68556
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 01 Mar 2013 31 Dec 2012 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 01 Mar 2013 31 Dec 2012 008-68556
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 29 Feb 2012 31 Dec 2011 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 29 Feb 2012 31 Dec 2011 008-68556
FOCUSN Open FOCUSN document View SEC filing for FOCUSN AUTO-GENERATED PAPER DOCUMENT 01 Mar 2011 31 Dec 2010 008-68556
X-17A-5 Open X-17A-5 document View SEC filing for X-17A-5 AUTO-GENERATED PAPER DOCUMENT 01 Mar 2011 31 Dec 2010 008-68556

About this filer

SIMPLEX TRADING, LLC files with the SEC under CIK 0001488542. This page aggregates EDGAR filings and related ownership activity.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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