Filer Snapshot

Matthew M. Rizai SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001013631.

Entity Type

Individual

Total Filings

49

Latest Filing

05 Mar 2026

Industry

n/a

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Source: SEC filing 144

144 filed on 05 Mar 2026 for CIK 0001013631.

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Business address
2900 University Blvd., Ames, IA, 50010
Top holdings (Schedule 13G)
WK

Quick Takeaways

  • Matthew M. Rizai is an SEC filer tracked under CIK 0001013631.
  • 49 filings are listed on this profile.
  • Common form coverage includes 144, SCHEDULE 13G/A, SC 13G/A and more.

What Changed

  • Latest filing: 144 filed on 05 Mar 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 filing 144

144 filed on 05 Mar 2026 for CIK 0001013631.

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Return Loop

Why revisit this filer page

A newly filed 144 can change the filing history, ownership context, or next research path for Matthew M. Rizai.

Latest source-backed update
144 filed 05 Mar 2026
Why come back
Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 144 filed 05 Mar 2026.
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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 Matthew M. Rizai

New filing available

Latest Schedule 13D/G period: 31 Dec 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

13 Feb 2026

Page type

Filer profile

Latest period

31 Dec 2025

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

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Filer Overview

Matthew M. Rizai has filed 49 SEC EDGAR filings since 13 Feb 1998. Common forms include 144, SCHEDULE 13G/A, SC 13G/A, 4 and more.

Latest 13F filings

Latest Filings

Recent SEC filings for Matthew M. Rizai with direct links to document and filing folders.

144

144 filing

Filing date
05 Mar 2026
Reporting date
Not listed
SEC evidence
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144

144 filing

Filing date
20 Feb 2026
Reporting date
Not listed
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
13 Feb 2026
Reporting date
Not listed
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144

144 filing

Filing date
21 Jan 2026
Reporting date
Not listed
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144

144 filing

Filing date
02 Jan 2026
Reporting date
Not listed
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144

144 filing

Filing date
17 Dec 2025
Reporting date
Not listed
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144

144 filing

Filing date
12 Nov 2025
Reporting date
Not listed
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144

144 filing

Filing date
14 Oct 2025
Reporting date
Not listed
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144

144 filing

Filing date
03 Oct 2025
Reporting date
Not listed
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144

144 filing

Filing date
01 Aug 2025
Reporting date
Not listed
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144

144 filing

Filing date
14 Jul 2025
Reporting date
Not listed
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144

144 filing

Filing date
19 May 2025
Reporting date
Not listed
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144

144 filing

Filing date
16 Jan 2025
Reporting date
Not listed
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144

144 filing

Filing date
18 Dec 2024
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
09 Feb 2024
Reporting date
Not listed
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144

144 filing

Filing date
22 Dec 2023
Reporting date
Not listed
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144

144 filing

Filing date
21 Dec 2023
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
10 Feb 2023
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
10 Feb 2022
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
16 Feb 2021
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
13 Feb 2020
Reporting date
Not listed
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4 File 001-36773

FORM 4

Filing date
21 May 2019
Reporting date
17 May 2019
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SC 13G/A

SC 13G/A

Filing date
13 Feb 2019
Reporting date
Not listed
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SC 13G/A

SC 13G/A

Filing date
14 Feb 2018
Reporting date
Not listed
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4 File 001-36773

FORM 4

Filing date
07 Feb 2018
Reporting date
05 Feb 2018
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4 File 001-36773

FORM 4

Filing date
05 Feb 2018
Reporting date
01 Feb 2018
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4 File 001-36773

FORM 4

Filing date
22 Jan 2018
Reporting date
18 Jan 2018
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4 File 001-36773

FORM 4

Filing date
11 Sep 2017
Reporting date
07 Sep 2017
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SC 13G/A

SC 13G/A

Filing date
14 Feb 2017
Reporting date
Not listed
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4 File 001-36773

FORM 4

Filing date
07 Feb 2017
Reporting date
06 Feb 2017
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4 File 001-36773

FORM 4

Filing date
03 Feb 2017
Reporting date
01 Feb 2017
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4 File 001-36773

FORM 4

Filing date
20 Jan 2017
Reporting date
18 Jan 2017
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4 File 001-36773

FORM 4

Filing date
16 Nov 2016
Reporting date
14 Nov 2016
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4 File 001-36773

FORM 4

Filing date
09 Aug 2016
Reporting date
08 Aug 2016
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4 File 001-36773

FORM 4

Filing date
16 May 2016
Reporting date
12 May 2016
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SC 13G/A

SC 13G

Filing date
16 Feb 2016
Reporting date
Not listed
SEC evidence
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4 File 001-36773

FORM 4

Filing date
09 Feb 2016
Reporting date
05 Feb 2016
SEC evidence
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4 File 001-36773

FORM 4

Filing date
02 Feb 2016
Reporting date
01 Feb 2016
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4 File 001-36773

FORM 4

Filing date
21 Jan 2016
Reporting date
19 Jan 2016
SEC evidence
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5 File 001-36773

FORM 5

Filing date
21 Jan 2016
Reporting date
31 Dec 2015
SEC evidence
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SC 13G

SC 13G

Filing date
13 Feb 2015
Reporting date
Not listed
SEC evidence
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4 File 001-36773

FORM 4

Filing date
09 Feb 2015
Reporting date
05 Feb 2015
SEC evidence
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3 File 001-36773

FORM 3

Filing date
10 Dec 2014
Reporting date
10 Dec 2014
SEC evidence
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About this filer

Matthew M. Rizai files with the SEC under CIK 0001013631. 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.
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