Filer Snapshot

POST WILLIAM J SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001027958.

Entity Type

Company

Total Filings

115

Latest Filing

01 Apr 2026

Industry

Electric Services

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Source: SEC Forms 3/4/5

4 filed on 01 Apr 2026 for CIK 0001027958.

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Industry
Electric Services (Office Of Energy & Transportation)
Business address
400 North Fifth Street, ., Phoenix, AZ, 85004
Top holdings (ownership)
FSLR
State of incorporation
AZ
Fiscal year end
31 December

Quick Takeaways

  • POST WILLIAM J is an SEC filer tracked under CIK 0001027958.
  • 115 filings are listed on this profile.
  • Common form coverage includes 4, 144, 3 and more.

What Changed

  • Latest filing: 4 filed on 01 Apr 2026.
  • Report period: 31 Mar 2026.

Why This Matters

  • You can quote filing dates and form types directly from the SEC record on this page.
  • Use this profile before deeper ownership or insider analysis to confirm filing history context.

Source Evidence

Source: SEC Forms 3/4/5

4 filed on 01 Apr 2026 for CIK 0001027958.

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Return Loop

Why revisit this filer page

A newly filed 4 can change the filing history, ownership context, or next research path for POST WILLIAM J.

Latest source-backed update
4 filed 01 Apr 2026
Why come back
Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 01 Apr 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Latest update

What changed recently for POST WILLIAM J

Ownership report updated

Latest ownership report period: 31 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

01 Apr 2026

Page type

Ownership filings

Latest period

31 Mar 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 01 Apr 2026.

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Benchmark Context

Benchmark context for this company

POST WILLIAM J has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

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Why this is notable

Latest ownership report period: 31 Mar 2026. That gives you a fresh baseline before you compare this company with peers.

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Filer Overview

POST WILLIAM J has filed 115 SEC EDGAR filings since 13 Feb 1997. Common forms include 4, 144, 3, 4/A and more.

Electric Services Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for POST WILLIAM J with direct links to document and filing folders.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Apr 2026 31 Mar 2026 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2026 31 Dec 2025 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2025 30 Sep 2025 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jul 2025 30 Jun 2025 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Apr 2025 31 Mar 2025 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jan 2025 31 Dec 2024 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2024 30 Sep 2024 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jul 2024 28 Jun 2024 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2024 29 Mar 2024 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jan 2024 29 Dec 2023 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2023 30 Sep 2023 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jul 2023 30 Jun 2023 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 May 2023 16 May 2023 001-33156
144 Open 144 document View SEC filing for 144 16 May 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2023 31 Mar 2023 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2023 30 Dec 2022 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2022 30 Sep 2022 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jul 2022 30 Jun 2022 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2022 31 Mar 2022 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2022 31 Dec 2021 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2021 30 Sep 2021 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2021 30 Jun 2021 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Apr 2021 31 Mar 2021 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2021 31 Dec 2020 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2020 30 Sep 2020 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2020 30 Jun 2020 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2020 31 Mar 2020 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jan 2020 31 Dec 2019 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2019 30 Sep 2019 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2019 28 Jun 2019 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2019 29 Mar 2019 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jan 2019 31 Dec 2018 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Oct 2018 28 Sep 2018 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2018 29 Jun 2018 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2018 30 Mar 2018 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2018 29 Dec 2017 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2017 29 Sep 2017 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jul 2017 30 Jun 2017 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2017 31 Mar 2017 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2017 31 Dec 2016 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2016 30 Sep 2016 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jul 2016 30 Jun 2016 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2016 31 Mar 2016 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2016 31 Dec 2015 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2015 30 Sep 2015 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2015 30 Jun 2015 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2015 31 Mar 2015 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2015 31 Dec 2014 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2014 30 Sep 2014 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jul 2014 30 Jun 2014 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2014 31 Mar 2014 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2014 31 Dec 2013 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 09 Dec 2013 09 Dec 2013 001-08444
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2013 30 Sep 2013 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jul 2013 12 Jul 2013 001-08444
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Jul 2013 30 Jun 2013 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Apr 2013 31 Mar 2013 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2013 22 Feb 2013 001-35007
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jan 2013 31 Dec 2012 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Oct 2012 30 Sep 2012 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jul 2012 30 Jun 2012 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Jun 2012 14 Jun 2012 001-08444
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2012 02 Apr 2012 001-35007
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2012 31 Mar 2012 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2012 31 Dec 2011 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2011 30 Sep 2011 001-33156
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 06 Sep 2011 06 Sep 2011 001-08444
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jul 2011 30 Jun 2011 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2011 31 Mar 2011 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Feb 2011 18 Feb 2011 001-35007
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2011 31 Dec 2010 001-33156
3 Open 3 document View SEC filing for 3 FORM 3 17 Dec 2010 15 Dec 2010 001-35007
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Sep 2010 24 Sep 2010 001-33156
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Jun 2010 25 Jun 2010 001-33156
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 04 Jun 2010 01 Jun 2010 001-33156
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Feb 2010 19 Feb 2010 001-08962
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jan 2010 04 Jan 2010 001-08962

About this filer

POST WILLIAM J files with the SEC under CIK 0001027958. This page aggregates EDGAR filings and related ownership activity.

Industry: Electric Services.

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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