Filer Snapshot

William C. Stone SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001032282.

Entity Type

Individual

Total Filings

83

Latest Filing

03 Mar 2026

Industry

n/a

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Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 03 Mar 2026 for CIK 0001032282.

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Business address
80 Lamberton Road, Windsor, CT, 06095
Top holdings (ownership)
SSNC
Top holdings (Schedule 13G)
SSNC

Quick Takeaways

  • William C. Stone is an SEC filer tracked under CIK 0001032282.
  • 83 filings are listed on this profile.
  • Common form coverage includes 4, SCHEDULE 13G/A, 144 and more.

What Changed

  • Latest filing: 4 filed on 03 Mar 2026.
  • Report period: 02 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 03 Mar 2026 for CIK 0001032282.

View Source Filing

Return Loop

Why revisit this filer page

A newly filed 4 can change the filing history, ownership context, or next research path for William C. Stone.

Latest source-backed update
4 filed 03 Mar 2026
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Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 03 Mar 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 William C. Stone

Ownership report updated

Latest ownership report period: 02 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

03 Mar 2026

Page type

Ownership filings

Latest period

02 Mar 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 03 Mar 2026.

Open ownership filings Browse recent public updates

Filer Overview

William C. Stone has filed 83 SEC EDGAR filings since 11 Feb 1997. Common forms include 4, SCHEDULE 13G/A, 144, SC 13G/A and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for William C. Stone 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 4 03 Mar 2026 02 Mar 2026 001-34675
4 Open 4 document View SEC filing for 4 4 23 Feb 2026 22 Feb 2026 001-34675
4 Open 4 document View SEC filing for 4 4 18 Feb 2026 13 Feb 2026 001-34675
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 09 Feb 2026
4 Open 4 document View SEC filing for 4 4 29 Dec 2025 23 Dec 2025 001-34675
4 Open 4 document View SEC filing for 4 4 15 Oct 2025 13 Oct 2025 001-34675
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 02 Mar 2025 001-34675
4 Open 4 document View SEC filing for 4 4 25 Feb 2025 22 Feb 2025 001-34675
4 Open 4 document View SEC filing for 4 4 19 Feb 2025 14 Feb 2025 001-34675
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 10 Feb 2025
4 Open 4 document View SEC filing for 4 4 11 Dec 2024 10 Dec 2024 001-34675
144 Open 144 document View SEC filing for 144 10 Dec 2024
4 Open 4 document View SEC filing for 4 4 09 Dec 2024 05 Dec 2024 001-34675
144 Open 144 document View SEC filing for 144 05 Dec 2024
4 Open 4 document View SEC filing for 4 4 27 Nov 2024 26 Nov 2024 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Mar 2024 02 Mar 2024 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Feb 2024 22 Feb 2024 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 07 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Dec 2023 22 Dec 2023 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Sep 2023 07 Sep 2023 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Mar 2023 02 Mar 2023 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 07 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Dec 2022 12 Dec 2022 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 07 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Dec 2021 16 Dec 2021 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Sep 2021 21 Sep 2021 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 27 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Dec 2020 22 Dec 2020 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO.6 TO SCHEDULE 13G 12 Feb 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Dec 2019 23 Dec 2019 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Dec 2019 13 Dec 2019 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO.5 TO SCHEDULE 13G 11 Feb 2019
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Dec 2018 17 Dec 2018 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 May 2018 01 May 2018 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO.4 TO SCHEDULE 13G 08 Feb 2018
5 Open 5 document View SEC filing for 5 FORM 5 SUBMISSION 05 Feb 2018 31 Dec 2017 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Dec 2017 22 Dec 2017 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO.3 TO SCHEDULE 13G 10 Feb 2017
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Dec 2016 21 Dec 2016 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Aug 2016 04 Aug 2016 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2016 01 Aug 2016 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2016 15 Jun 2016 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 May 2016 10 May 2016 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO.2 TO SCHEDULE 13G 27 Jan 2016
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jan 2016 05 Jan 2016 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Dec 2015 22 Dec 2015 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Dec 2015 07 Dec 2015 001-34675
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2015
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Dec 2014 19 Dec 2014 001-34675
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 14 Feb 2014
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Dec 2013 20 Dec 2013 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Mar 2013 26 Mar 2013 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Mar 2013 19 Mar 2013 001-34675
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 14 Feb 2013
5 Open 5 document View SEC filing for 5 MAIN DOCUMENT DESCRIPTION 12 Feb 2013 31 Dec 2012 001-34675
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 31 Dec 2012 27 Dec 2012 001-34675
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 31 Dec 2012 27 Dec 2012 000-28430
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 14 Feb 2012
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Oct 2011 03 Oct 2011 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Jun 2011 31 May 2011 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 May 2011 24 May 2011 001-34675
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 29 Mar 2011 25 Mar 2010 001-34675
3/A Open 3/A document View SEC filing for 3/A FORM 3/A SUBMISSION 29 Mar 2011 30 Mar 2010 001-34675
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 11 Feb 2011
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Feb 2011 09 Feb 2011 001-34675
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Apr 2010 17 Feb 2010 001-34675
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 30 Mar 2010 30 Mar 2010 001-34675

About this filer

William C. Stone files with the SEC under CIK 0001032282. 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.