Filer Snapshot

Charles Dadswell SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001575229.

Entity Type

Individual

Total Filings

120

Latest Filing

10 Mar 2026

Industry

n/a

Save this filer page for the next filing cycle

Keep this page in your research queue, then return to compare new filings with prior context.

Save and revisit

Save this filer page

Create a free account to keep this page in your watchlists and return after a new SEC filing changes the record here.

Create free account to save and revisit this page

Best next steps

Start with the latest filings table, then open the strongest context page for this filer.

  • Use the filings table to verify the newest submission, form type, and report period.
  • Open the deeper context page only when this filer actually has insider or ownership signal.
Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 10 Mar 2026 for CIK 0001575229.

View Source Filing
Business address
C/O Masimo Corporation, 52 Discovery, Irvine, CA, 92618
Top holdings (ownership)
ILMN

Quick Takeaways

  • Charles Dadswell is an SEC filer tracked under CIK 0001575229.
  • 120 filings are listed on this profile.
  • Common form coverage includes 4, 3, 144 and more.

What Changed

  • Latest filing: 4 filed on 10 Mar 2026.
  • Report period: 06 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 10 Mar 2026 for CIK 0001575229.

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 Charles Dadswell.

Latest source-backed update
4 filed 10 Mar 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 10 Mar 2026.
  • Save this filer if you want a stable place to return after the next filing cycle.
  • Open the latest filing table or ownership context to verify what changed.

Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

Jump to save and follow actions Open latest filings table

Latest update

What changed recently for Charles Dadswell

Ownership report updated

Latest ownership report period: 06 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

10 Mar 2026

Page type

Ownership filings

Latest period

06 Mar 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 10 Mar 2026.

Open ownership filings Browse recent public updates

Filer Overview

Charles Dadswell has filed 120 SEC EDGAR filings since 24 Apr 2013. Common forms include 4, 3, 144, 5 and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Charles Dadswell 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 FORM 4 10 Mar 2026 06 Mar 2026 001-33642
4 Open 4 document View SEC filing for 4 FORM 4 03 Sep 2025 18 Aug 2025 001-33642
3 Open 3 document View SEC filing for 3 FORM 3 03 Sep 2025 18 Aug 2025 001-33642
144 Open 144 document View SEC filing for 144 15 Oct 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Sep 2024 13 Sep 2024 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 19 Aug 2024 15 Aug 2024 001-35406
144 Open 144 document View SEC filing for 144 15 Aug 2024
3 Open 3 document View SEC filing for 3 3 12 Jun 2024 11 Jun 2024 001-42045
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2024 05 Mar 2024 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2023 05 Nov 2023 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 23 Feb 2023 21 Feb 2023 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Nov 2022 05 Nov 2022 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 May 2022 28 Apr 2022 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Mar 2022 28 Mar 2022 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2022 01 Mar 2022 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Feb 2022 22 Feb 2022 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 23 Dec 2021 22 Dec 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Nov 2021 22 Nov 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Nov 2021 05 Nov 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Oct 2021 22 Oct 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 23 Sep 2021 22 Sep 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Aug 2021 23 Aug 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Jul 2021 22 Jul 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Jun 2021 22 Jun 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 May 2021 24 May 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Apr 2021 22 Apr 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Mar 2021 22 Mar 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Feb 2021 17 Feb 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Feb 2021 09 Feb 2021 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2020 01 Dec 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Nov 2020 05 Nov 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Nov 2020 02 Nov 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Oct 2020 01 Oct 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Sep 2020 01 Sep 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Aug 2020 03 Aug 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jul 2020 01 Jul 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jun 2020 01 Jun 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 May 2020 01 May 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2020 01 Apr 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Mar 2020 02 Mar 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Feb 2020 11 Feb 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Feb 2020 05 Feb 2020 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Dec 2019 02 Dec 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2019 05 Nov 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Nov 2019 01 Nov 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2019 01 Oct 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Sep 2019 03 Sep 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Aug 2019 01 Aug 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jul 2019 01 Jul 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jun 2019 03 Jun 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2019 01 May 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2019 01 Apr 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Mar 2019 01 Mar 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Feb 2019 12 Feb 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2019 01 Feb 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2019 02 Jan 2019 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2018 11 Dec 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Dec 2018 03 Dec 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2018 05 Nov 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2018 03 Apr 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Mar 2018 05 Mar 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Feb 2018 15 Feb 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Feb 2018 05 Feb 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Jan 2018 29 Jan 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2018 03 Jan 2018 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2017 11 Dec 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Dec 2017 04 Dec 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2017 03 Nov 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Oct 2017 03 Oct 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Sep 2017 05 Sep 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Aug 2017 03 Aug 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jul 2017 03 Jul 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Jun 2017 05 Jun 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 May 2017 03 May 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Apr 2017 24 Apr 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Feb 2017 15 Feb 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Feb 2017 06 Feb 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 31 Jan 2017 30 Jan 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Jan 2017 10 Jan 2017 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Dec 2016 02 Dec 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Nov 2016 07 Nov 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2016 04 Oct 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Sep 2016 06 Sep 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Aug 2016 04 Aug 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Jul 2016 27 Jul 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Apr 2016 22 Apr 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Apr 2016 04 Apr 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Mar 2016 07 Mar 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2016 03 Mar 2016 001-35406
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 17 Feb 2016 03 Jan 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Feb 2016 29 Jan 2016 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Dec 2015 28 Dec 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Dec 2015 08 Dec 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Nov 2015 27 Nov 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Nov 2015 05 Nov 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Nov 2015 03 Nov 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Sep 2015 28 Sep 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 31 Aug 2015 27 Aug 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Jul 2015 27 Jul 2015 001-35406
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 29 Jul 2015 29 Jun 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Jun 2015 29 Jun 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 May 2015 27 May 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 May 2015 30 Apr 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Apr 2015 27 Apr 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 23 Apr 2015 22 Apr 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 31 Mar 2015 27 Mar 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Feb 2015 29 Jan 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Jan 2015 27 Jan 2015 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Dec 2014 29 Dec 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Dec 2014 05 Dec 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2014 28 Nov 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Oct 2014 27 Oct 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Sep 2014 29 Sep 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Aug 2014 27 Aug 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Jul 2014 28 Jul 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Jun 2014 27 Jun 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 22 Apr 2014 22 Apr 2014 001-35406
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 31 Jan 2014 29 Jan 2014 001-35406
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 24 Apr 2013 22 Apr 2013 001-35406

About this filer

Charles Dadswell files with the SEC under CIK 0001575229. 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.