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

Mark N. Tompkins SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001455971.

Entity Type

Individual

Total Filings

131

Latest Filing

15 May 2026

Industry

n/a

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Go to latest filings table Open reporting owner context

Source: SEC Schedule 13D/G

SCHEDULE 13G/A filed on 15 May 2026 for CIK 0001455971.

View Source Filing

Business address: App. 1, Via Guidino 23, Lugano Paradiso
Top holdings (ownership): ALMU, SERV, GUER, AMST, and Venetian-1 Acquisition Corp.
Top holdings (Schedule 13G): ALMU, PMNT, Orielle Acquisition Corp., Lomond Therapeutics Holdings, Inc., Range Acquisition Corp., Deep Fission, Inc., Primus Acquisition Inc., Deep Isolation Nuclear, Inc., Var Acquisition Corp., and Los Altos Ventures Corp.

Quick Takeaways

Mark N. Tompkins is an SEC filer tracked under CIK 0001455971.
131 filings are listed on this profile.
Common form coverage includes SCHEDULE 13G/A, SCHEDULE 13G, 4 and more.

What Changed

Latest filing: SCHEDULE 13G/A filed on 15 May 2026.
Report period: not specified in filing header.

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 Schedule 13D/G

SCHEDULE 13G/A filed on 15 May 2026 for CIK 0001455971.

View Source Filing

Return Loop

Why revisit this filer page

A newly filed SCHEDULE 13G/A can change the filing history, ownership context, or next research path for Mark N. Tompkins.

Latest source-backed update: SCHEDULE 13G/A filed 15 May 2026
Why come back: Revisit after a new SEC filing appears to compare the updated record with prior filings.

Latest filing on record: SCHEDULE 13G/A filed 15 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 Mark N. Tompkins

New filing available

Latest Schedule 13D/G period: 31 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

15 May 2026

Page type

Filer profile

Latest period

31 Mar 2026

Schedule 13D/G context is visible from filings filed on 15 May 2026.

Open filer profile Browse recent public updates

Filer Overview

Mark N. Tompkins has filed 131 SEC EDGAR filings since 11 Feb 2009. Common forms include SCHEDULE 13G/A, SCHEDULE 13G, 4, 3 and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Mark N. Tompkins with direct links to document and filing folders.

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 15 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 15 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 15 May 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 17 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 17 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 17 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 05 Feb 2026
Reporting date: 04 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 02 Feb 2026
Reporting date: 29 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56799

3 filing

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

4 File 001-42570

4 filing

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

4 File 001-42570

OWNERSHIP DOCUMENT

Filing date: 29 Dec 2025
Reporting date: 23 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 22 Dec 2025
Reporting date: 18 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

OWNERSHIP DOCUMENT

Filing date: 11 Dec 2025
Reporting date: 09 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 09 Dec 2025
Reporting date: 04 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56784

3 filing

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

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G

SCHEDULE 13G filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

OWNERSHIP DOCUMENT

Filing date: 21 Oct 2025
Reporting date: 17 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 17 Oct 2025
Reporting date: 15 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 14 Oct 2025
Reporting date: 10 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 09 Oct 2025
Reporting date: 07 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

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

4/A File 001-42570

4/A filing

Filing date: 06 Oct 2025
Reporting date: 29 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 02 Oct 2025
Reporting date: 29 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56769

3 filing

Filing date: 30 Sep 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56770

3 filing

Filing date: 30 Sep 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56407

4 filing

Filing date: 08 Sep 2025
Reporting date: 05 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56749

4 filing

Filing date: 28 Aug 2025
Reporting date: 26 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56407

4 filing

Filing date: 28 Aug 2025
Reporting date: 26 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56406

4 filing

Filing date: 25 Jul 2025
Reporting date: 23 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56406

4 filing

Filing date: 18 Jul 2025
Reporting date: 16 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56749

3 filing

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

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 03 Apr 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-42570

4 filing

Filing date: 31 Mar 2025
Reporting date: 27 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Feb 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date: 14 Feb 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 14 Nov 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56377

OWNERSHIP DOCUMENT

Filing date: 05 Nov 2024
Reporting date: 01 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 3 TO SCHEDULE 13G

Filing date: 14 Aug 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 2 TO SCHEDULE 13G

Filing date: 14 Aug 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 3 TO SCHEDULE 13G

Filing date: 14 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 2 TO SCHEDULE 13G

Filing date: 14 Feb 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56237

4 filing

Filing date: 02 Aug 2023
Reporting date: 31 Jul 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 2 TO SCHEDULE 13G

Filing date: 14 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 2 TO SCHEDULE 13G

Filing date: 14 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56218

4 filing

Filing date: 13 Jan 2023
Reporting date: 22 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56407

3 filing

Filing date: 20 Apr 2022
Reporting date: 20 Apr 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56406

3 filing

Filing date: 20 Apr 2022
Reporting date: 20 Apr 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 14 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 14 Feb 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56377

OWNERSHIP DOCUMENT

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

SC 13G

SCHEDULE 13G

Filing date: 23 Nov 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56238

4 filing

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

4 File 000-56238

4 filing

Filing date: 25 Oct 2021
Reporting date: 21 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56237

OWNERSHIP DOCUMENT

Filing date: 26 Jul 2021
Reporting date: 05 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56238

3 filing

Filing date: 14 Jul 2021
Reporting date: 05 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56218

4 filing

Filing date: 29 Jun 2021
Reporting date: 22 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56218

4 filing

Filing date: 23 Jun 2021
Reporting date: 21 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 02 Jun 2021
Reporting date: 28 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 27 May 2021
Reporting date: 25 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 24 May 2021
Reporting date: 20 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 19 May 2021
Reporting date: 17 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 14 May 2021
Reporting date: 12 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 11 May 2021
Reporting date: 07 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

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

4 File 001-39553

4 filing

Filing date: 03 May 2021
Reporting date: 29 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

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

4 File 001-39553

4 filing

Filing date: 20 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 14 Apr 2021
Reporting date: 12 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 09 Apr 2021
Reporting date: 08 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 07 Apr 2021
Reporting date: 05 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 05 Mar 2021
Reporting date: 04 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56181

FORM 4

Filing date: 25 Feb 2021
Reporting date: 23 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 16 Feb 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 16 Feb 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56218

3 filing

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

3 File 000-56181

3 filing

Filing date: 28 Oct 2020
Reporting date: 17 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-56036

4 filing

Filing date: 07 Oct 2020
Reporting date: 05 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39553

4 filing

Filing date: 29 Sep 2020
Reporting date: 29 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39553

3 filing

Filing date: 25 Sep 2020
Reporting date: 24 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 18 Feb 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55832

4 filing

Filing date: 14 Feb 2020
Reporting date: 12 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

AMENDMENT NO. 1 TO SCHEDULE 13G

Filing date: 14 Feb 2020
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-56036

3 filing

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

SC 13G

SCHEDULE 13G

Filing date: 13 Feb 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SCHEDULE 13G

Filing date: 13 Feb 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-55832

3 filing

Filing date: 28 Sep 2018
Reporting date: 28 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55804

4 filing

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

3 File 000-55939

3 filing

Filing date: 30 Jul 2018
Reporting date: 29 Jul 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D

SCHEDULE 13D

Filing date: 07 May 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55804

OWNERSHIP DOCUMENT

Filing date: 01 May 2018
Reporting date: 27 Apr 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-55804

OWNERSHIP DOCUMENT

Filing date: 01 May 2018
Reporting date: 26 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 15 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 14 Feb 2018
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 29 Dec 2017
Reporting date: 27 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 27 Dec 2017
Reporting date: 22 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 22 Dec 2017
Reporting date: 21 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

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

SC 13D/A

AMENDMENT NO. 1 TO SCHEDULE 13D

Filing date: 20 Oct 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 29 Sep 2017
Reporting date: 28 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55764

OWNERSHIP DOCUMENT

Filing date: 28 Sep 2017
Reporting date: 26 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55764

OWNERSHIP DOCUMENT

Filing date: 26 Sep 2017
Reporting date: 22 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 22 Sep 2017
Reporting date: 20 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 14 Sep 2017
Reporting date: 12 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

Filing date: 12 Sep 2017
Reporting date: 08 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38029

4

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

4 File 001-38029

4

Filing date: 12 Jul 2017
Reporting date: 10 Jul 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D

SCHEDULE 13D

Filing date: 26 Jun 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-55764

OWNERSHIP DOCUMENT

Filing date: 19 Jun 2017
Reporting date: 15 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-55764

OWNERSHIP DOCUMENT

Filing date: 22 May 2017
Reporting date: 20 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38029

3

Filing date: 13 Mar 2017
Reporting date: 10 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 16 Feb 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A

Filing date: 24 Nov 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 10 Jul 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

Filing date: 17 Feb 2015
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 09 May 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G filing

Filing date: 03 May 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Mark N. Tompkins files with the SEC under CIK 0001455971. 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.