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. Mittelstaedt SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001064299.

Entity Type

Individual

Total Filings

148

Latest Filing

13 May 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 13 May 2026 for CIK 0001064299.

View Source Filing

Business address: 3 Waterway Square Place, Suite 110, The Woodlands, TX, 77380
Top holdings (ownership): WCN and SKYW

Key facts

Ronald J. Mittelstaedt is an SEC filer tracked under CIK 0001064299.
148 filings are listed on this profile.
Common form coverage includes 4, 144, 5 and more.

Change

Latest filing: 4 filed on 13 May 2026.
Report period: 12 May 2026.

Research use

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.

Evidence

Source: SEC Forms 3/4/5

4 filed on 13 May 2026 for CIK 0001064299.

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 Ronald J. Mittelstaedt.

Latest source-backed update: 4 filed 13 May 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 13 May 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 Ronald J. Mittelstaedt

Ownership report updated

Latest ownership report period: 12 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

13 May 2026

Page type

Ownership filings

Latest period

12 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 13 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Ronald J. Mittelstaedt has filed 148 SEC EDGAR filings since 22 Jun 1998. Common forms include 4, 144, 5, 3 and more.

Ronald J. Mittelstaedt SEC filings Ronald J. Mittelstaedt owner filings

Latest Filings

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

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 13 May 2026
Reporting date: 12 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 07 May 2026
Reporting date: 05 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 20 Feb 2026
Reporting date: 18 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 18 Feb 2026
Reporting date: 13 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 31 Dec 2025
Reporting date: 29 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 08 May 2025
Reporting date: 06 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 21 Feb 2025
Reporting date: 19 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 19 Feb 2025
Reporting date: 14 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 02 Dec 2024
Reporting date: 27 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 08 Nov 2024
Reporting date: 06 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 07 Nov 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 21 Feb 2024
Reporting date: 16 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 16 Feb 2024
Reporting date: 14 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 08 Feb 2024
Reporting date: 06 Feb 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

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

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 22 Feb 2023
Reporting date: 17 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 17 Feb 2023
Reporting date: 15 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 16 Feb 2023
Reporting date: 14 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

4 filing

Filing date: 09 Feb 2023
Reporting date: 07 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 23 Feb 2022
Reporting date: 18 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 16 Feb 2022
Reporting date: 14 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 14 Feb 2022
Reporting date: 10 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 26 Feb 2021
Reporting date: 24 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 23 Feb 2021
Reporting date: 19 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 17 Feb 2021
Reporting date: 14 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 16 Feb 2021
Reporting date: 11 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 18 Aug 2020
Reporting date: 14 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 26 Feb 2020
Reporting date: 24 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 24 Feb 2020
Reporting date: 20 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 19 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 13 Feb 2020
Reporting date: 01 Aug 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 06 Feb 2020
Reporting date: 04 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 26 Feb 2019
Reporting date: 24 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 22 Feb 2019
Reporting date: 20 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 19 Feb 2019
Reporting date: 15 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 13 Feb 2019
Reporting date: 11 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 07 Feb 2019
Reporting date: 05 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-34370

PRIMARY DOCUMENT

Filing date: 08 Jan 2019
Reporting date: 31 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 31 Aug 2018
Reporting date: 29 Aug 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 09 Mar 2018
Reporting date: 09 Mar 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 27 Feb 2018
Reporting date: 24 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 22 Feb 2018
Reporting date: 20 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 15 Feb 2018
Reporting date: 13 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 13 Feb 2018
Reporting date: 11 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 09 Feb 2018
Reporting date: 07 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-34370

PRIMARY DOCUMENT

Filing date: 12 Jan 2018
Reporting date: 31 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 28 Feb 2017
Reporting date: 24 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 11 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 13 Feb 2017
Reporting date: 09 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-34370

PRIMARY DOCUMENT

Filing date: 03 Jun 2016
Reporting date: 01 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 03 Jun 2016
Reporting date: 01 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-34370

PRIMARY DOCUMENT

Filing date: 03 Jun 2016
Reporting date: 01 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 29 Feb 2016
Reporting date: 25 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 16 Feb 2016
Reporting date: 12 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 12 Feb 2016
Reporting date: 10 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 12 Feb 2016
Reporting date: 10 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 12 Feb 2016
Reporting date: 10 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31507

PRIMARY DOCUMENT

Filing date: 03 Feb 2016
Reporting date: 31 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 04 May 2015
Reporting date: 30 Apr 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31507

PRIMARY DOCUMENT

Filing date: 12 Mar 2015
Reporting date: 31 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 27 Feb 2015
Reporting date: 25 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

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

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 17 Feb 2015
Reporting date: 13 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 12 Feb 2015
Reporting date: 10 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35354

FORM 4 -

Filing date: 06 Feb 2015
Reporting date: 04 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35354

FORM 3 -

Filing date: 29 Oct 2014
Reporting date: 20 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 27 Feb 2014
Reporting date: 25 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 20 Feb 2014
Reporting date: 18 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 18 Feb 2014
Reporting date: 13 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 12 Feb 2014
Reporting date: 10 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31507

PRIMARY DOCUMENT

Filing date: 16 Jan 2014
Reporting date: 31 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-14719

FORM 4 -

Filing date: 14 Nov 2013
Reporting date: 13 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-14719

PRIMARY DOCUMENT

Filing date: 09 Oct 2013
Reporting date: 01 Oct 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 27 Feb 2013
Reporting date: 25 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 12 Feb 2013
Reporting date: 10 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 07 Feb 2013
Reporting date: 05 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31507

PRIMARY DOCUMENT

Filing date: 10 Jan 2013
Reporting date: 31 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 24 May 2012
Reporting date: 19 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 14 Feb 2012
Reporting date: 10 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 07 Feb 2012
Reporting date: 05 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 03 Feb 2012
Reporting date: 01 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 29 Aug 2011
Reporting date: 25 Aug 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 15 Feb 2011
Reporting date: 11 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 08 Feb 2011
Reporting date: 05 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 03 Feb 2011
Reporting date: 01 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

5 File 001-31507

PRIMARY DOCUMENT

Filing date: 31 Jan 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-31507

PRIMARY DOCUMENT

Filing date: 18 Nov 2010
Reporting date: 12 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 16 Nov 2010
Reporting date: 12 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 01 Nov 2010
Reporting date: 28 Oct 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 05 Aug 2010
Reporting date: 03 Aug 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 20 May 2010
Reporting date: 18 May 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 14 May 2010
Reporting date: 12 May 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 16 Feb 2010
Reporting date: 11 Feb 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 09 Feb 2010
Reporting date: 05 Feb 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-31507

PRIMARY DOCUMENT

Filing date: 03 Feb 2010
Reporting date: 01 Feb 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Ronald J. Mittelstaedt files with the SEC under CIK 0001064299. 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.