William A. Lamkin SEC EDGAR Filings (CIK 0001362950)

SEC EDGAR filings, ownership reports, and insider transactions for William A. Lamkin.

Business address
C/O The Rmr Group Llc, Two Newton Pl., 255 Wash. St., Ste. 300, Newton, MA, 02458
Top holdings (ownership)
SEVN, NASDAQ:OPI, and :SVC
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William A. Lamkin has filed 62 SEC EDGAR filings since 24 May 2006

Latest Filings

Recent SEC filings for William A. Lamkin including 4, 144, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Dec 2025 15 Dec 2025 001-11527
144 Open 144 document View SEC filing for 144 15 Dec 2025
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Jun 2025 13 Jun 2025 001-11527
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 29 May 2025 28 May 2025 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 Jun 2024 14 Jun 2024 001-11527
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Jun 2024 13 Jun 2024 001-34364
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 03 Jun 2024 30 May 2024 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Jun 2023 13 Jun 2023 001-11527
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Jun 2023 13 Jun 2023 001-34364
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 May 2023 23 May 2023 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Jun 2022 16 Jun 2022 001-34364
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Jun 2022 15 Jun 2022 001-11527
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 26 May 2022 26 May 2022 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 04 Oct 2021 01 Oct 2021 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 04 Oct 2021 30 Sep 2021 001-38199
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 04 Oct 2021 30 Sep 2021 001-34383
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Jun 2021 17 Jun 2021 001-34364
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Jun 2021 16 Jun 2021 001-11527
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 28 May 2021 27 May 2021 001-38199
3 Open 3 document View SEC filing for 3 21 Dec 2020 21 Dec 2020 001-39821
4 Open 4 document View SEC filing for 4 4 11 Jun 2020 10 Jun 2020 001-11527
4 Open 4 document View SEC filing for 4 4 28 May 2020 27 May 2020 001-34364
4 Open 4 document View SEC filing for 4 4 13 May 2020 13 May 2020 001-38199
3 Open 3 document View SEC filing for 3 3 13 May 2020 13 May 2020 001-38199
4 Open 4 document View SEC filing for 4 4 13 Jun 2019 13 Jun 2019 001-11527
4 Open 4 document View SEC filing for 4 4 29 May 2019 29 May 2019 001-34364
4 Open 4 document View SEC filing for 4 4 28 Feb 2019 27 Feb 2019 001-34364
3 Open 3 document View SEC filing for 3 3 22 Jan 2019 15 Jan 2019 001-34364
4 Open 4 document View SEC filing for 4 4 02 Jan 2019 31 Dec 2018 001-35442
4 Open 4 document View SEC filing for 4 4 18 Jun 2018 14 Jun 2018 001-11527
3 Open 3 document View SEC filing for 3 3 18 Jun 2018 14 Jun 2018 001-11527
4 Open 4 document View SEC filing for 4 4 16 May 2018 16 May 2018 001-35442
4 Open 4 document View SEC filing for 4 4 15 Jun 2017 15 Jun 2017 001-11527
4 Open 4 document View SEC filing for 4 4 23 May 2017 23 May 2017 001-35442
4 Open 4 document View SEC filing for 4 4 25 May 2016 25 May 2016 001-11527
4 Open 4 document View SEC filing for 4 4 25 May 2016 24 May 2016 001-35442
4 Open 4 document View SEC filing for 4 4 02 Jun 2015 01 Jun 2015 001-11527
4 Open 4 document View SEC filing for 4 4 14 May 2015 13 May 2015 001-35442
4 Open 4 document View SEC filing for 4 4 10 Jun 2014 10 Jun 2014 001-11527
4 Open 4 document View SEC filing for 4 4 05 May 2014 02 May 2014 001-35442
4 Open 4 document View SEC filing for 4 4 16 May 2013 15 May 2013 001-11527
3 Open 3 document View SEC filing for 3 3 16 May 2013 15 May 2013 001-11527
4 Open 4 document View SEC filing for 4 4 16 May 2013 14 May 2013 001-09317
4 Open 4 document View SEC filing for 4 4 14 May 2013 13 May 2013 001-35442
4 Open 4 document View SEC filing for 4 4 18 Sep 2012 14 Sep 2012 001-35442
4 Open 4 document View SEC filing for 4 4 10 May 2012 09 May 2012 001-11527
4 Open 4 document View SEC filing for 4 4 09 May 2012 08 May 2012 001-09317
3 Open 3 document View SEC filing for 3 3 14 Mar 2012 08 Mar 2012 001-35442
4 Open 4 document View SEC filing for 4 4 12 May 2011 11 May 2011 001-11527
4 Open 4 document View SEC filing for 4 4 11 May 2011 10 May 2011 001-09317
4 Open 4 document View SEC filing for 4 FORM 4 16 Apr 2010 15 Apr 2010 001-11527
4 Open 4 document View SEC filing for 4 FORM 4 15 Apr 2010 14 Apr 2010 001-09317

About this filer

William A. Lamkin files with the SEC under CIK 0001362950. 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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