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

Nina Richardson

CIK 0001610535. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

107

Latest Filing

19 May 2026

Industry

n/a

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Start with the summary below, then verify the strongest source-backed page for this filer.

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 19 May 2026 for CIK 0001610535.

View Source Filing

Business address: C/O Silicon Laboratories, 400 W Cesar Chavez, Austin, TX, 78701
Top holdings (ownership): REZI, SLAB, and COHU

Filer intelligence

What SEC filings say about Nina Richardson

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 REZI worth $2.1M.

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 4 rows

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

Open

Forms 3/4/5 insider context

REZI

26 Aug 2025

$2.1M

Issuer page Owner page

SLAB

23 Apr 2026

$1.98M

Issuer page Owner page

COHU

15 May 2026

$1.66M

Issuer page Owner page

EAR

23 Aug 2022

Issuer page Owner page

Latest update

What changed recently for Nina Richardson

Ownership report updated

Latest ownership report period: 15 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

19 May 2026

Page type

Ownership filings

Latest period

15 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 19 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Nina Richardson has filed 107 SEC EDGAR filings since 25 Jun 2014. Common forms include 4, 144, 3, 4/A.

Nina Richardson SEC filings Nina Richardson owner filings

Latest Filings

Recent SEC filings for Nina Richardson with direct links to document and filing folders.

4 File 001-04298

FORM 4

Filing date: 19 May 2026
Reporting date: 15 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

FORM 4

Filing date: 24 Apr 2026
Reporting date: 23 Apr 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

Filing date: 10 Apr 2026
Reporting date: 12 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

FORM 4

Filing date: 15 Jan 2026
Reporting date: 13 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 13 Jan 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

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

144

144 filing

Filing date: 26 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

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

144

144 filing

Filing date: 07 Jul 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

Filing date: 06 Jun 2025
Reporting date: 04 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4

Filing date: 20 May 2025
Reporting date: 16 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

FORM 4

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

4 File 001-04298

FORM 4

Filing date: 15 Oct 2024
Reporting date: 10 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 10 Oct 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4

Filing date: 07 Jun 2024
Reporting date: 05 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

Filing date: 06 Jun 2024
Reporting date: 05 Jun 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

4 filing

Filing date: 13 May 2024
Reporting date: 09 May 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 09 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

FORM 4

Filing date: 22 Apr 2024
Reporting date: 18 Apr 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 05 Jul 2023
Reporting date: 07 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 11 May 2023
Reporting date: 10 May 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 11 May 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 25 Apr 2023
Reporting date: 21 Apr 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 21 Apr 2023
Reporting date: 20 Apr 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

144

144 filing

Filing date: 21 Apr 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 06 Mar 2023
Reporting date: 03 Mar 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 30 Jan 2023
Reporting date: 27 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 16 Nov 2022
Reporting date: 15 Nov 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 02 Nov 2022
Reporting date: 01 Nov 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39616

FORM 4 SUBMISSION

Filing date: 25 Aug 2022
Reporting date: 23 Aug 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 10 Jun 2022
Reporting date: 08 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 06 May 2022
Reporting date: 04 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

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

4 File 001-39616

FORM 4 SUBMISSION

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

4 File 001-39616

FORM 4 SUBMISSION

Filing date: 15 Dec 2021
Reporting date: 14 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 18 Nov 2021
Reporting date: 16 Nov 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 09 Nov 2021
Reporting date: 29 Oct 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39616

FORM 4 SUBMISSION

Filing date: 16 Sep 2021
Reporting date: 14 Sep 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 13 Jul 2021
Reporting date: 12 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 10 Jun 2021
Reporting date: 09 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

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

4 File 001-39616

FORM 4 SUBMISSION

Filing date: 28 Apr 2021
Reporting date: 27 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 23 Apr 2021
Reporting date: 22 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 22 Jan 2021
Reporting date: 25 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 19 Nov 2020
Reporting date: 18 Nov 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-39616

FORM 4 SUBMISSION

Filing date: 22 Oct 2020
Reporting date: 20 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39616

FORM 3 SUBMISSION

Filing date: 15 Oct 2020
Reporting date: 15 Oct 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 29 Sep 2020
Reporting date: 25 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 30 Jun 2020
Reporting date: 26 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 15 Jun 2020
Reporting date: 12 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 09 Jun 2020
Reporting date: 08 Jun 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 07 May 2020
Reporting date: 06 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 21 Apr 2020
Reporting date: 20 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 31 Mar 2020
Reporting date: 27 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 19 Nov 2019
Reporting date: 16 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 18 Nov 2019
Reporting date: 18 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-04298

FORM 4 SUBMISSION

Filing date: 03 Oct 2019
Reporting date: 01 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-04298

FORM 3 SUBMISSION

Filing date: 03 Oct 2019
Reporting date: 01 Oct 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 13 Jun 2019
Reporting date: 12 Jun 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 22 Apr 2019
Reporting date: 18 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-38635

FORM 4 SUBMISSION

Filing date: 19 Nov 2018
Reporting date: 16 Nov 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-38635

FORM 3 SUBMISSION

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

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 11 Oct 2018
Reporting date: 09 Oct 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 02 Oct 2018
Reporting date: 28 Sep 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 10 Aug 2018
Reporting date: 05 Jul 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Jul 2018
Reporting date: 29 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 04 Jun 2018
Reporting date: 01 Jun 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

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

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 09 Apr 2018
Reporting date: 05 Apr 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-50463

4

Filing date: 09 Apr 2018
Reporting date: 05 Apr 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 03 Apr 2018
Reporting date: 31 Mar 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 09 Jan 2018
Reporting date: 05 Jan 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 03 Jan 2018
Reporting date: 29 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 06 Oct 2017
Reporting date: 04 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 03 Oct 2017
Reporting date: 30 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 10 Jul 2017
Reporting date: 06 Jul 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Jul 2017
Reporting date: 30 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-50463

4

Filing date: 16 Jun 2017
Reporting date: 14 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 24 Apr 2017
Reporting date: 21 Apr 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 21 Apr 2017
Reporting date: 20 Apr 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 04 Apr 2017
Reporting date: 31 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-50463

PRIMARY DOCUMENT

Filing date: 02 Feb 2017
Reporting date: 02 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-50463

PRIMARY DOCUMENT

Filing date: 02 Feb 2017
Reporting date: 02 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Jan 2017
Reporting date: 03 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 04 Jan 2017
Reporting date: 31 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-51333

FORM 4

Filing date: 02 Nov 2016
Reporting date: 01 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-51333

FORM 4

Filing date: 26 Oct 2016
Reporting date: 24 Oct 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Oct 2016
Reporting date: 03 Oct 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 04 Oct 2016
Reporting date: 30 Sep 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 20 Jul 2016
Reporting date: 18 Jul 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Jul 2016
Reporting date: 30 Jun 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-29823

PRIMARY DOCUMENT

Filing date: 25 Apr 2016
Reporting date: 21 Apr 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 14 Apr 2016
Reporting date: 12 Apr 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Apr 2016
Reporting date: 04 Apr 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 04 Apr 2016
Reporting date: 31 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-29823

PRIMARY DOCUMENT

Filing date: 04 Feb 2016
Reporting date: 28 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A File 001-36690

FORM 4/A SUBMISSION

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

4 File 001-36690

FORM 4 SUBMISSION

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

4 File 000-51333

FORM 4

Filing date: 12 Jan 2016
Reporting date: 08 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-51333

FORM 3

Filing date: 12 Jan 2016
Reporting date: 08 Jan 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 05 Jan 2016
Reporting date: 31 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36690

FORM 4 SUBMISSION

Filing date: 04 Nov 2015
Reporting date: 02 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36690

FORM 3 SUBMISSION

Filing date: 04 Nov 2015
Reporting date: 02 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36514

FORM 4 SUBMISSION

Filing date: 30 Jan 2015
Reporting date: 29 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36514

FORM 4 SUBMISSION

Filing date: 26 Nov 2014
Reporting date: 25 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-36514

FORM 4 SUBMISSION

Filing date: 20 Nov 2014
Reporting date: 19 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-36514

FORM 3 SUBMISSION

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

About this filer

Nina Richardson files with the SEC under CIK 0001610535. 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.