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

Chi-Foon Chan

CIK 0001249834. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

153

Latest Filing

02 Jul 2025

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 02 Jul 2025 for CIK 0001249834.

View Source Filing

Top holdings (ownership): SNPS and PDFS

Filer intelligence

What SEC filings say about Chi-Foon Chan

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 SNPS worth $76.74M.

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

SNPS

28 Feb 2022 · Co-CEO

$76.74M

Issuer page Owner page

PDFS

01 Jul 2025

$413.5K

Issuer page Owner page

Latest update

What changed recently for Chi-Foon Chan

Ownership report updated

Latest ownership report period: 01 Jul 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

02 Jul 2025

Page type

Ownership filings

Latest period

01 Jul 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 02 Jul 2025.

Open ownership filings Browse recent public updates

Filer Overview

Chi-Foon Chan has filed 153 SEC EDGAR filings since 27 Aug 2003. Common forms include 4, 3, 4/A.

Chi-Foon Chan SEC filings Chi-Foon Chan owner filings

Latest Filings

Recent SEC filings for Chi-Foon Chan with direct links to document and filing folders.

4 File 000-31311

FORM 4

Filing date: 02 Jul 2025
Reporting date: 01 Jul 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-31311

4 filing

Filing date: 02 Jul 2024
Reporting date: 01 Jul 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-31311

4 filing

Filing date: 03 Jan 2024
Reporting date: 01 Jan 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-31311

3 filing

Filing date: 18 Dec 2023
Reporting date: 14 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2022
Reporting date: 28 Feb 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

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 000-19807

PRIMARY DOCUMENT

Filing date: 13 Dec 2021
Reporting date: 09 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2021
Reporting date: 08 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 07 Dec 2021
Reporting date: 03 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Sep 2021
Reporting date: 31 Aug 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 24 May 2021
Reporting date: 21 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2021
Reporting date: 26 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 22 Feb 2021
Reporting date: 19 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 14 Dec 2020
Reporting date: 10 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 08 Dec 2020
Reporting date: 04 Dec 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Sep 2020
Reporting date: 31 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 24 Aug 2020
Reporting date: 21 Aug 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 26 May 2020
Reporting date: 22 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 03 Mar 2020
Reporting date: 28 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 25 Feb 2020
Reporting date: 21 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 16 Dec 2019
Reporting date: 12 Dec 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2019
Reporting date: 06 Dec 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 03 Sep 2019
Reporting date: 30 Aug 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 26 Aug 2019
Reporting date: 23 Aug 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 28 May 2019
Reporting date: 24 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2019
Reporting date: 28 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 26 Feb 2019
Reporting date: 22 Feb 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 14 Dec 2018
Reporting date: 12 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 11 Dec 2018
Reporting date: 07 Dec 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 04 Sep 2018
Reporting date: 31 Aug 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 29 May 2018
Reporting date: 25 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

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 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 26 Feb 2018
Reporting date: 23 Feb 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 04 Dec 2017
Reporting date: 01 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 05 Sep 2017
Reporting date: 31 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 18 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Mar 2017
Reporting date: 28 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 21 Feb 2017
Reporting date: 17 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 19 Dec 2016
Reporting date: 15 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 06 Dec 2016
Reporting date: 02 Dec 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Sep 2016
Reporting date: 31 Aug 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 22 Aug 2016
Reporting date: 19 Aug 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 21 Mar 2016
Reporting date: 18 Mar 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2016
Reporting date: 29 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 22 Feb 2016
Reporting date: 19 Feb 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 17 Dec 2015
Reporting date: 15 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2015
Reporting date: 08 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 07 Dec 2015
Reporting date: 04 Dec 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Sep 2015
Reporting date: 31 Aug 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 24 Aug 2015
Reporting date: 21 Aug 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 27 May 2015
Reporting date: 22 May 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 03 Mar 2015
Reporting date: 27 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 16 Dec 2014
Reporting date: 12 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 09 Dec 2014
Reporting date: 08 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 08 Dec 2014
Reporting date: 05 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Sep 2014
Reporting date: 29 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 25 Aug 2014
Reporting date: 22 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 28 May 2014
Reporting date: 23 May 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 04 Mar 2014
Reporting date: 28 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 16 Dec 2013
Reporting date: 12 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2013
Reporting date: 09 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2013
Reporting date: 08 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2013
Reporting date: 06 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 03 Sep 2013
Reporting date: 30 Aug 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 27 Aug 2013
Reporting date: 23 Aug 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 12 Jul 2013
Reporting date: 11 Jul 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2013
Reporting date: 28 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 25 Feb 2013
Reporting date: 22 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 14 Dec 2012
Reporting date: 12 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 11 Dec 2012
Reporting date: 08 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 11 Dec 2012
Reporting date: 08 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 04 Sep 2012
Reporting date: 31 Aug 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 04 Apr 2012
Reporting date: 03 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Apr 2012
Reporting date: 02 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 29 Mar 2012
Reporting date: 29 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Mar 2012
Reporting date: 29 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 28 Feb 2012
Reporting date: 27 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 27 Feb 2012
Reporting date: 24 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

MAIN DOCUMENT DESCRIPTION

Filing date: 23 Dec 2011
Reporting date: 23 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 12 Dec 2011
Reporting date: 08 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 05 Dec 2011
Reporting date: 02 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 02 Dec 2011
Reporting date: 30 Nov 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Sep 2011
Reporting date: 31 Aug 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 10 Dec 2010
Reporting date: 08 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 07 Dec 2010
Reporting date: 03 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

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

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 01 Sep 2010
Reporting date: 31 Aug 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-19807

PRIMARY DOCUMENT

Filing date: 26 Feb 2010
Reporting date: 26 Feb 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Chi-Foon Chan files with the SEC under CIK 0001249834. 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.