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.

Filer Snapshot

Ronald J. Tanski

CIK 0001209940. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

106

Latest Filing

11 May 2026

Industry

n/a

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Open 13F if you want portfolio holdings.
Open 13D/G or insider pages only when this CIK has those rows.

Open reporting owner context

Source: SEC Forms 3/4/5

4 filed on 11 May 2026 for CIK 0001209940.

View Source Filing

Business address: National Fuel Gas Company, 6363 Main St, Williamsville, NY, 14221
Top holdings (ownership): NFG and CMS

Filer intelligence

What SEC filings say about Ronald J. Tanski

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

Forms 3/4/5 show insider context for NFG worth $28.62M.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed

13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

Open

Forms 3/4/5 2 rows

Officer, director, and 10% owner holdings or transactions.

Open

Forms 3/4/5 insider context

NFG

01 Apr 2026

$28.62M

Issuer page Owner page

CMS

08 May 2026

$1.62M

Issuer page Owner page

Latest update

What changed recently for Ronald J. Tanski

Ownership report updated

Latest ownership report period: 08 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

11 May 2026

Page type

Ownership filings

Latest period

08 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 11 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Ronald J. Tanski has filed 106 SEC EDGAR filings since 08 Apr 2003. Common forms include 4, 3, 4/A, 5.

Ronald J. Tanski SEC filings Ronald J. Tanski owner filings

Latest Filings

Recent SEC filings for Ronald J. Tanski with direct links to document and filing folders.

4 File 001-09513

FORM 4

Filing date: 11 May 2026
Reporting date: 08 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Apr 2026
Reporting date: 01 Apr 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 06 Jan 2026
Reporting date: 02 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 12 Nov 2025
Reporting date: 10 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Oct 2025
Reporting date: 01 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Jul 2025
Reporting date: 01 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

FORM 4

Filing date: 06 May 2025
Reporting date: 02 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Apr 2025
Reporting date: 01 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Jan 2025
Reporting date: 02 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 27 Nov 2024
Reporting date: 26 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Oct 2024
Reporting date: 01 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Jul 2024
Reporting date: 01 Jul 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

FORM 4

Filing date: 06 May 2024
Reporting date: 03 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Apr 2024
Reporting date: 01 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Jan 2024
Reporting date: 02 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 14 Dec 2023
Reporting date: 12 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Oct 2023
Reporting date: 02 Oct 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Jul 2023
Reporting date: 03 Jul 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

FORM 4

Filing date: 08 May 2023
Reporting date: 05 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Apr 2023
Reporting date: 03 Apr 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Jan 2023
Reporting date: 03 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 13 Dec 2022
Reporting date: 12 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Oct 2022
Reporting date: 03 Oct 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Jul 2022
Reporting date: 01 Jul 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

FORM 4

Filing date: 10 May 2022
Reporting date: 06 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 12 Apr 2022
Reporting date: 11 Apr 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Apr 2022
Reporting date: 01 Apr 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 29 Mar 2022
Reporting date: 28 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 15 Mar 2022
Reporting date: 14 Mar 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 01 Mar 2022
Reporting date: 28 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 15 Feb 2022
Reporting date: 14 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Feb 2022
Reporting date: 31 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Jan 2022
Reporting date: 03 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 06 Dec 2021
Reporting date: 02 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 16 Nov 2021
Reporting date: 12 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Oct 2021
Reporting date: 01 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

FORM 4

Filing date: 10 May 2021
Reporting date: 07 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Apr 2021
Reporting date: 01 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 06 Jan 2021
Reporting date: 04 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 14 Dec 2020
Reporting date: 10 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 05 Oct 2020
Reporting date: 01 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 06 Jul 2020
Reporting date: 01 Jul 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

PRIMARY DOCUMENT

Filing date: 04 May 2020
Reporting date: 01 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Apr 2020
Reporting date: 01 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 03 Jan 2020
Reporting date: 02 Jan 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 11 Dec 2019
Reporting date: 09 Dec 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-09513

PRIMARY DOCUMENT

Filing date: 12 Nov 2019
Reporting date: 08 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-09513

PRIMARY DOCUMENT

Filing date: 12 Nov 2019
Reporting date: 08 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-05611

PRIMARY DOCUMENT

Filing date: 12 Nov 2019
Reporting date: 08 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Oct 2019
Reporting date: 01 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Jul 2019
Reporting date: 01 Jul 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2018
Reporting date: 19 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 06 Dec 2018
Reporting date: 04 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 13 Nov 2018
Reporting date: 19 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2017
Reporting date: 19 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 08 Dec 2017
Reporting date: 06 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 04 Dec 2017
Reporting date: 30 Nov 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2016
Reporting date: 19 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 09 Dec 2016
Reporting date: 07 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2015
Reporting date: 19 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 18 Dec 2015
Reporting date: 17 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 19 Jun 2015
Reporting date: 17 Jun 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 23 Dec 2014
Reporting date: 19 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 18 Jun 2014
Reporting date: 16 Jun 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 23 Dec 2013
Reporting date: 19 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2012
Reporting date: 19 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 19 Dec 2012
Reporting date: 17 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 26 Nov 2012
Reporting date: 21 Nov 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 28 Sep 2012
Reporting date: 26 Sep 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 29 Dec 2011
Reporting date: 27 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 27 Dec 2011
Reporting date: 22 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 21 Dec 2011
Reporting date: 19 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 28 Nov 2011
Reporting date: 23 Nov 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 16 Aug 2011
Reporting date: 12 Aug 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 25 Mar 2011
Reporting date: 23 Mar 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 22 Dec 2010
Reporting date: 20 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 29 Nov 2010
Reporting date: 24 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Sep 2010
Reporting date: 30 Jun 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 26 Aug 2010
Reporting date: 24 Aug 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 02 Jul 2010
Reporting date: 30 Jun 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 31 Mar 2010
Reporting date: 30 Mar 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-03880

PRIMARY DOCUMENT

Filing date: 15 Mar 2010
Reporting date: 11 Mar 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Ronald J. Tanski files with the SEC under CIK 0001209940. 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.