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

Dietrich Douglas T.

CIK 0001408736. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

Latest Filing

18 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 18 May 2026 for CIK 0001408736.

View Source Filing

Business address: 622 Third Avenue, New York, United States, 10017
Top holdings (ownership): MTX and KMT

Filer intelligence

What SEC filings say about Dietrich Douglas T.

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 MTX worth $19.5M.

SEC source mix

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

XML parsed

13F portfolio No rows yet

Quarterly institutional portfolio holdings.

Open

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

MTX

14 May 2026 · CHAIRMAN AND CEO

$19.5M

Issuer page Owner page

KMT

24 Feb 2026

$513.8K

Issuer page Owner page

Latest update

What changed recently for Dietrich Douglas T.

Ownership report updated

Latest ownership report period: 14 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

18 May 2026

Page type

Ownership filings

Latest period

14 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 18 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Dietrich Douglas T. has filed 91 SEC EDGAR filings since 07 Aug 2007. Common forms include 4, 144, 3.

Dietrich Douglas T. SEC filings Dietrich Douglas T. owner filings

Latest Filings

Recent SEC filings for Dietrich Douglas T. with direct links to document and filing folders.

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 18 May 2026
Reporting date: 14 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 14 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 26 Feb 2026
Reporting date: 24 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 03 Feb 2026
Reporting date: 30 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 27 Jan 2026
Reporting date: 23 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2026
Reporting date: 21 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 22 Jan 2026
Reporting date: 20 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 25 Nov 2025
Reporting date: 24 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 27 Aug 2025
Reporting date: 26 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 18 Aug 2025
Reporting date: 15 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 29 May 2025
Reporting date: 27 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

4 filing

Filing date: 01 May 2025
Reporting date: 30 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

Filing date: 27 Feb 2025
Reporting date: 25 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-05318

PRIMARY DOCUMENT

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

3 File 001-05318

PRIMARY DOCUMENT

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

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 29 Jan 2025
Reporting date: 27 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 28 Jan 2025
Reporting date: 24 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 27 Jan 2025
Reporting date: 23 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2025
Reporting date: 21 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 30 May 2024
Reporting date: 28 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 29 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 28 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 29 Jan 2024
Reporting date: 25 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 26 Jan 2024
Reporting date: 24 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2024
Reporting date: 23 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 08 Dec 2023
Reporting date: 07 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 07 Dec 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 27 Jan 2023
Reporting date: 26 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 26 Jan 2023
Reporting date: 24 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2023
Reporting date: 23 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 12 Sep 2022
Reporting date: 08 Sep 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 28 Jan 2022
Reporting date: 26 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 27 Jan 2022
Reporting date: 25 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2022
Reporting date: 21 Jan 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 17 Mar 2021
Reporting date: 15 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 26 Feb 2021
Reporting date: 25 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 28 Jan 2021
Reporting date: 26 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 26 Jan 2021
Reporting date: 23 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2021
Reporting date: 22 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 22 Jan 2021
Reporting date: 21 Jan 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 10 Nov 2020
Reporting date: 09 Nov 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 30 Mar 2020
Reporting date: 27 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 17 Mar 2020
Reporting date: 13 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 24 Jan 2020
Reporting date: 23 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2020
Reporting date: 21 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 21 Jan 2020
Reporting date: 17 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 03 Sep 2019
Reporting date: 29 Aug 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 14 Mar 2019
Reporting date: 13 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 24 Jan 2019
Reporting date: 23 Jan 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2019
Reporting date: 19 Jan 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 22 Jan 2019
Reporting date: 17 Jan 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 22 Jun 2018
Reporting date: 21 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

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

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2018
Reporting date: 23 Jan 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2018
Reporting date: 19 Jan 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 18 Jan 2018
Reporting date: 17 Jan 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 25 Jan 2017
Reporting date: 22 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 24 Jan 2017
Reporting date: 20 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 23 Jan 2017
Reporting date: 19 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 19 Jan 2017
Reporting date: 17 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 10 Aug 2016
Reporting date: 09 Aug 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 26 Jan 2016
Reporting date: 22 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

Filing date: 22 Jan 2016
Reporting date: 20 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

PRIMARY DOCUMENT

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

4 File 001-11430

FORM 4 -

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

4 File 001-11430

FORM 4 -

Filing date: 26 Jan 2015
Reporting date: 22 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 22 Jan 2015
Reporting date: 20 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 29 Jan 2014
Reporting date: 27 Jan 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 24 Jan 2014
Reporting date: 22 Jan 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 23 Jan 2014
Reporting date: 22 Jan 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

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

4 File 001-11430

FORM 4

Filing date: 30 Jan 2013
Reporting date: 28 Jan 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 29 Jan 2013
Reporting date: 25 Jan 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 24 Jan 2013
Reporting date: 22 Jan 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 01 Feb 2012
Reporting date: 28 Jan 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 31 Jan 2012
Reporting date: 27 Jan 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 30 Jan 2012
Reporting date: 26 Jan 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4 -

Filing date: 27 Jan 2012
Reporting date: 25 Jan 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

4 filing

Filing date: 01 Mar 2011
Reporting date: 27 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

4 filing

Filing date: 01 Feb 2011
Reporting date: 28 Jan 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

4 filing

Filing date: 31 Jan 2011
Reporting date: 27 Jan 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 28 Jan 2011
Reporting date: 26 Jan 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 04 Aug 2010
Reporting date: 02 Aug 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

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

4 File 001-11430

FORM 4

Filing date: 05 Feb 2010
Reporting date: 27 Jan 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-11430

FORM 4

Filing date: 01 Feb 2010
Reporting date: 28 Jan 2009
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Dietrich Douglas T. files with the SEC under CIK 0001408736. 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.