MICHAEL D. LOCKHART SEC EDGAR Filings (CIK 0001215151)

SEC EDGAR filings, ownership reports, and insider transactions for MICHAEL D. LOCKHART.

Business address
C/O Armstrong World Industries,, 2500 Columbia Ave., Po Box 3001, Lancaster, PA, 17604-3001
Top holdings (ownership)
NSC
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MICHAEL D. LOCKHART has filed 136 SEC EDGAR filings since 11 Oct 2006

Latest Filings

Recent SEC filings for MICHAEL D. LOCKHART including 4, 4/A, 5 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 22 Feb 2024 20 Feb 2024 001-08339
4 Open 4 document View SEC filing for 4 01 Feb 2024 30 Jan 2024 001-08339
4 Open 4 document View SEC filing for 4 30 Jan 2024 26 Jan 2024 001-08339
4 Open 4 document View SEC filing for 4 22 Nov 2023 20 Nov 2023 001-08339
4 Open 4 document View SEC filing for 4 22 Aug 2023 21 Aug 2023 001-08339
4 Open 4 document View SEC filing for 4 23 May 2023 20 May 2023 001-08339
4 Open 4 document View SEC filing for 4 23 Feb 2023 21 Feb 2023 001-08339
4 Open 4 document View SEC filing for 4 30 Jan 2023 26 Jan 2023 001-08339
4 Open 4 document View SEC filing for 4 22 Nov 2022 21 Nov 2022 001-08339
4 Open 4 document View SEC filing for 4 23 Aug 2022 20 Aug 2022 001-08339
4 Open 4 document View SEC filing for 4 24 May 2022 20 May 2022 001-08339
4 Open 4 document View SEC filing for 4 23 Feb 2022 21 Feb 2022 001-08339
4 Open 4 document View SEC filing for 4 31 Jan 2022 27 Jan 2022 001-08339
4 Open 4 document View SEC filing for 4 23 Nov 2021 19 Nov 2021 001-08339
4 Open 4 document View SEC filing for 4 23 Aug 2021 20 Aug 2021 001-08339
4 Open 4 document View SEC filing for 4 21 May 2021 20 May 2021 001-08339
4 Open 4 document View SEC filing for 4 12 Mar 2021 10 Mar 2021 001-08339
4 Open 4 document View SEC filing for 4 02 Feb 2021 01 Feb 2021 001-08339
4 Open 4 document View SEC filing for 4 29 Jan 2021 28 Jan 2021 001-08339
4 Open 4 document View SEC filing for 4 11 Dec 2020 10 Dec 2020 001-08339
4 Open 4 document View SEC filing for 4 11 Sep 2020 10 Sep 2020 001-08339
4 Open 4 document View SEC filing for 4 12 Jun 2020 10 Jun 2020 001-08339
4 Open 4 document View SEC filing for 4 12 Mar 2020 10 Mar 2020 001-08339
4 Open 4 document View SEC filing for 4 03 Feb 2020 30 Jan 2020 001-08339
4 Open 4 document View SEC filing for 4 12 Dec 2019 10 Dec 2019 001-08339
4 Open 4 document View SEC filing for 4 12 Sep 2019 10 Sep 2019 001-08339
4 Open 4 document View SEC filing for 4 12 Jun 2019 10 Jun 2019 001-08339
4 Open 4 document View SEC filing for 4 13 Mar 2019 11 Mar 2019 001-08339
4/A Open 4/A document View SEC filing for 4/A 15 Feb 2019 28 Jan 2019 001-08339
4 Open 4 document View SEC filing for 4 30 Jan 2019 28 Jan 2019 001-08339
4 Open 4 document View SEC filing for 4 02 Jan 2019 31 Dec 2018 001-08339
4 Open 4 document View SEC filing for 4 11 Dec 2018 10 Dec 2018 001-08339
4 Open 4 document View SEC filing for 4 02 Oct 2018 28 Sep 2018 001-08339
4 Open 4 document View SEC filing for 4 11 Sep 2018 10 Sep 2018 001-08339
4 Open 4 document View SEC filing for 4 03 Jul 2018 29 Jun 2018 001-08339
4 Open 4 document View SEC filing for 4 12 Jun 2018 11 Jun 2018 001-08339
4 Open 4 document View SEC filing for 4 02 Apr 2018 29 Mar 2018 001-08339
4 Open 4 document View SEC filing for 4 13 Mar 2018 09 Mar 2018 001-08339
4 Open 4 document View SEC filing for 4 29 Jan 2018 25 Jan 2018 001-08339
4 Open 4 document View SEC filing for 4 03 Jan 2018 29 Dec 2017 001-08339
4 Open 4 document View SEC filing for 4 13 Dec 2017 11 Dec 2017 001-08339
4 Open 4 document View SEC filing for 4 03 Oct 2017 29 Sep 2017 001-08339
4/A Open 4/A document View SEC filing for 4/A 13 Sep 2017 11 Sep 2017 001-08339
4 Open 4 document View SEC filing for 4 13 Sep 2017 11 Sep 2017 001-08339
4 Open 4 document View SEC filing for 4 05 Jul 2017 30 Jun 2017 001-08339
4 Open 4 document View SEC filing for 4 13 Jun 2017 10 Jun 2017 001-08339
4 Open 4 document View SEC filing for 4 16 May 2017 05 May 2017 001-08339
4 Open 4 document View SEC filing for 4 04 Apr 2017 31 Mar 2017 001-08339
4 Open 4 document View SEC filing for 4 14 Mar 2017 10 Mar 2017 001-08339
5 Open 5 document View SEC filing for 5 10 Feb 2017 31 Dec 2016 001-08339
4 Open 4 document View SEC filing for 4 06 Feb 2017 02 Feb 2017 001-08339
4 Open 4 document View SEC filing for 4 27 Jan 2017 26 Jan 2017 001-08339
4 Open 4 document View SEC filing for 4 03 Jan 2017 30 Dec 2016 001-08339
4 Open 4 document View SEC filing for 4 13 Dec 2016 10 Dec 2016 001-08339
4 Open 4 document View SEC filing for 4 04 Oct 2016 30 Sep 2016 001-08339
4 Open 4 document View SEC filing for 4 13 Sep 2016 10 Sep 2016 001-08339
4 Open 4 document View SEC filing for 4 05 Jul 2016 30 Jun 2016 001-08339
4 Open 4 document View SEC filing for 4 14 Jun 2016 10 Jun 2016 001-08339
4 Open 4 document View SEC filing for 4 01 Apr 2016 31 Mar 2016 001-08339
4 Open 4 document View SEC filing for 4 14 Mar 2016 10 Mar 2016 001-08339
4 Open 4 document View SEC filing for 4 29 Jan 2016 28 Jan 2016 001-08339
4 Open 4 document View SEC filing for 4 04 Jan 2016 30 Dec 2015 001-08339
4 Open 4 document View SEC filing for 4 14 Dec 2015 10 Dec 2015 001-08339
4 Open 4 document View SEC filing for 4 02 Oct 2015 30 Sep 2015 001-08339
4 Open 4 document View SEC filing for 4 14 Sep 2015 10 Sep 2015 001-08339
4 Open 4 document View SEC filing for 4 02 Jul 2015 30 Jun 2015 001-08339
4 Open 4 document View SEC filing for 4 12 Jun 2015 10 Jun 2015 001-08339
4 Open 4 document View SEC filing for 4 02 Apr 2015 31 Mar 2015 001-08339
4 Open 4 document View SEC filing for 4 12 Mar 2015 10 Mar 2015 001-08339
4 Open 4 document View SEC filing for 4 29 Jan 2015 27 Jan 2015 001-08339
4 Open 4 document View SEC filing for 4 02 Jan 2015 31 Dec 2014 001-08339
4 Open 4 document View SEC filing for 4 12 Dec 2014 10 Dec 2014 001-08339
4 Open 4 document View SEC filing for 4 02 Oct 2014 30 Sep 2014 001-08339
4 Open 4 document View SEC filing for 4 12 Sep 2014 10 Sep 2014 001-08339
4 Open 4 document View SEC filing for 4 02 Jul 2014 30 Jun 2014 001-08339
4 Open 4 document View SEC filing for 4 12 Jun 2014 10 Jun 2014 001-08339
4 Open 4 document View SEC filing for 4 02 Apr 2014 31 Mar 2014 001-08339
4 Open 4 document View SEC filing for 4 12 Mar 2014 10 Mar 2014 001-08339
4 Open 4 document View SEC filing for 4 24 Jan 2014 23 Jan 2014 001-08339
4 Open 4 document View SEC filing for 4 03 Jan 2014 31 Dec 2013 001-08339
4 Open 4 document View SEC filing for 4 12 Dec 2013 10 Dec 2013 001-08339
4 Open 4 document View SEC filing for 4 02 Oct 2013 30 Sep 2013 001-08339
4 Open 4 document View SEC filing for 4 12 Sep 2013 10 Sep 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2013 30 Jun 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Jun 2013 10 Jun 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Apr 2013 31 Mar 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Mar 2013 11 Mar 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Jan 2013 24 Jan 2013 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2013 31 Dec 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Dec 2012 10 Dec 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2012 28 Sep 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Sep 2012 10 Sep 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jul 2012 29 Jun 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Jun 2012 11 Jun 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2012 30 Mar 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Mar 2012 10 Mar 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Jan 2012 26 Jan 2012 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2012 30 Dec 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2011 10 Dec 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2011 30 Sep 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Sep 2011 10 Sep 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Jun 2011 30 Jun 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Jun 2011 10 Jun 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Apr 2011 31 Mar 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Mar 2011 10 Mar 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Jan 2011 27 Jan 2011 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2011 31 Dec 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2010 10 Dec 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2010 30 Sep 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Sep 2010 10 Sep 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2010 30 Jun 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Jun 2010 10 Jun 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 31 Mar 2010 31 Mar 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Mar 2010 10 Mar 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Feb 2010 29 Jan 2010 001-08339
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2010 31 Dec 2009 001-08339

About this filer

MICHAEL D. LOCKHART files with the SEC under CIK 0001215151. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

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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