Filer Snapshot

WIDDER KENNETH J SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001065168.

Entity Type

Company

Total Filings

60

Latest Filing

17 Dec 2025

Industry

In Vitro & In Vivo Diagnostic Substances

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

4 filed on 17 Dec 2025 for CIK 0001065168.

View Source Filing
Industry
In Vitro & In Vivo Diagnostic Substances (Office Of Life Sciences)
Business address
9975 Summers Ridge Road, San Diego, CA, 92121
Top holdings (ownership)
QDEL

Quick Takeaways

  • WIDDER KENNETH J is an SEC filer tracked under CIK 0001065168.
  • 60 filings are listed on this profile.
  • Common form coverage includes 4, 144, 3 and more.

What Changed

  • Latest filing: 4 filed on 17 Dec 2025.
  • Report period: 17 Dec 2025.

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 17 Dec 2025 for CIK 0001065168.

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 WIDDER KENNETH J.

Latest source-backed update
4 filed 17 Dec 2025
Why come back
Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 17 Dec 2025.
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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 WIDDER KENNETH J

Ownership report updated

Latest ownership report period: 17 Dec 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

17 Dec 2025

Page type

Ownership filings

Latest period

17 Dec 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 17 Dec 2025.

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Benchmark Context

Benchmark context for this company

WIDDER KENNETH 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.

Compared with

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Why this is notable

Latest ownership report period: 17 Dec 2025. That gives you a fresh baseline before you compare this company with peers.

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Filer Overview

WIDDER KENNETH J has filed 60 SEC EDGAR filings since 05 Nov 1998. Common forms include 4, 144, 3, 5.

In Vitro & In Vivo Diagnostic Substances Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for WIDDER KENNETH 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 4 17 Dec 2025 17 Dec 2025 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 25 Nov 2025 25 Nov 2025 001-41409
144 Open 144 document View SEC filing for 144 25 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Jun 2025 29 May 2025 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 27 May 2025 22 May 2025 001-41409
4 Open 4 document View SEC filing for 4 4 22 May 2025 21 May 2025 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 20 May 2025 18 May 2025 001-41409
4 Open 4 document View SEC filing for 4 20 May 2025 16 May 2025 001-38943
4 Open 4 document View SEC filing for 4 4 29 Jan 2025 28 Jan 2025 001-36075
4 Open 4 document View SEC filing for 4 4 23 Jul 2024 19 Jul 2024 001-41409
4 Open 4 document View SEC filing for 4 4 29 May 2024 24 May 2024 001-41409
4 Open 4 document View SEC filing for 4 4 24 May 2024 22 May 2024 001-36075
4 Open 4 document View SEC filing for 4 4 23 May 2024 22 May 2024 001-41409
4 Open 4 document View SEC filing for 4 21 May 2024 17 May 2024 001-38943
4 Open 4 document View SEC filing for 4 4 14 May 2024 12 May 2024 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Jun 2023 13 Jun 2023 001-38943
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Jun 2023 13 Jun 2023 001-38943
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2023 06 Jun 2023 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 May 2023 24 May 2023 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2023 14 May 2023 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 May 2023 10 May 2023 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Jun 2022 06 Jun 2022 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jun 2022 27 May 2022 001-41409
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 01 Jun 2022 27 May 2022 001-41409
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Jun 2022 27 May 2022 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 May 2022 18 May 2022 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2022 15 May 2022 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Apr 2022 27 Apr 2022 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jul 2021 05 May 2021 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 May 2021 18 May 2021 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2021 16 May 2021 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 May 2021 12 May 2021 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 May 2020 27 May 2020 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2020 14 May 2020 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 May 2020 12 May 2020 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2019 14 May 2019 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 May 2019 02 May 2019 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2018 15 May 2018 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Apr 2018 26 Apr 2018 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Nov 2017 06 Nov 2016 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 May 2017 16 May 2017 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 May 2017 05 May 2017 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 May 2017 03 May 2017 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Feb 2017 22 Feb 2017 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2016 17 May 2016 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 May 2016 05 May 2016 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Apr 2016 27 Apr 2016 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 May 2015 04 May 2015 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Apr 2015 22 Apr 2015 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Nov 2014 17 Nov 2014 000-10961
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 19 Nov 2014 17 Nov 2014 000-10961
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 May 2014 20 May 2014 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Oct 2013 30 Sep 2013 001-36075
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Sep 2013 24 Sep 2013 001-36075
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 24 Sep 2013 24 Sep 2013 001-36075

About this filer

WIDDER KENNETH J files with the SEC under CIK 0001065168. This page aggregates EDGAR filings and related ownership activity.

Industry: In Vitro & In Vivo Diagnostic Substances.

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.