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

Stephen S. Schwartz

CIK 0001247436. 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

22 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 22 May 2026 for CIK 0001247436.

View Source Filing

Business address: 46897 Bayside Parkway, Fremont, CA, 94538
Top holdings (ownership): AZTA, ONTO, and SR

Filer intelligence

What SEC filings say about Stephen S. Schwartz

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 AZTA worth $25.88M.

SEC source mix

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

XML parsed

13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

Open

Forms 3/4/5 3 rows

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

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Forms 3/4/5 insider context

AZTA

15 Nov 2023 · CEO

$25.88M

Issuer page Owner page

ONTO

20 May 2026

$725.1K

Issuer page Owner page

03 Feb 2023

$392.9K

Issuer page Owner page

Latest update

What changed recently for Stephen S. Schwartz

Ownership report updated

Latest ownership report period: 20 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

22 May 2026

Page type

Ownership filings

Latest period

20 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 22 May 2026.

Open ownership filings Browse recent public updates

Filer Overview

Stephen S. Schwartz has filed 92 SEC EDGAR filings since 17 Feb 2004. Common forms include 4, 3, 5/A, 5.

Stephen S. Schwartz SEC filings Stephen S. Schwartz owner filings

Latest Filings

Recent SEC filings for Stephen S. Schwartz with direct links to document and filing folders.

4 File 001-39110

PRIMARY DOCUMENT

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

4 File 001-39110

PRIMARY DOCUMENT

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

4 File 001-39110

PRIMARY DOCUMENT

Filing date: 22 Aug 2024
Reporting date: 20 Aug 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-39110

PRIMARY DOCUMENT

Filing date: 16 Jul 2024
Reporting date: 16 Jul 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 17 Nov 2023
Reporting date: 15 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 21 Nov 2022
Reporting date: 17 Nov 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 17 Nov 2022
Reporting date: 15 Nov 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

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

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 28 Jun 2021
Reporting date: 24 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 22 Jun 2021
Reporting date: 18 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

Filing date: 03 Feb 2021
Reporting date: 01 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 20 Nov 2020
Reporting date: 18 Nov 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 17 Sep 2020
Reporting date: 15 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 11 Sep 2020
Reporting date: 09 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 Sep 2020
Reporting date: 03 Sep 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 Jul 2020
Reporting date: 06 Jul 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

Filing date: 04 Feb 2020
Reporting date: 03 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 16 Jan 2020
Reporting date: 15 Jan 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 18 Dec 2019
Reporting date: 16 Dec 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 22 Nov 2019
Reporting date: 15 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 18 Nov 2019
Reporting date: 15 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 13 Nov 2019
Reporting date: 11 Nov 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 001-16681

PRIMARY DOCUMENT

Filing date: 16 May 2019
Reporting date: 15 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

Filing date: 17 Apr 2019
Reporting date: 29 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-16681

PRIMARY DOCUMENT

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

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 20 Nov 2018
Reporting date: 16 Nov 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-16681

PRIMARY DOCUMENT

Filing date: 16 Nov 2018
Reporting date: 14 Nov 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 07 Nov 2018
Reporting date: 05 Nov 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 30 May 2018
Reporting date: 25 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 24 May 2018
Reporting date: 22 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 21 May 2018
Reporting date: 17 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 14 May 2018
Reporting date: 10 May 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 23 Mar 2018
Reporting date: 21 Mar 2018
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 20 Nov 2017
Reporting date: 16 Nov 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 13 Nov 2017
Reporting date: 08 Nov 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

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

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 29 Nov 2016
Reporting date: 28 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 22 Nov 2016
Reporting date: 21 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 21 Nov 2016
Reporting date: 16 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 16 Nov 2016
Reporting date: 14 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 14 Nov 2016
Reporting date: 11 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 14 Nov 2016
Reporting date: 09 Nov 2016
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 10 Nov 2015
Reporting date: 06 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Nov 2015
Reporting date: 04 Nov 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 10 Feb 2015
Reporting date: 09 Feb 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 09 Dec 2014
Reporting date: 05 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 02 Dec 2014
Reporting date: 28 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 19 Nov 2014
Reporting date: 18 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 10 Nov 2014
Reporting date: 06 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Nov 2014
Reporting date: 04 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 19 Feb 2014
Reporting date: 18 Feb 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 19 Nov 2013
Reporting date: 15 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 12 Nov 2013
Reporting date: 08 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 Nov 2013
Reporting date: 06 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 17 May 2013
Reporting date: 15 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 May 2013
Reporting date: 06 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Feb 2013
Reporting date: 04 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 21 Dec 2012
Reporting date: 21 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 04 Dec 2012
Reporting date: 02 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 Nov 2012
Reporting date: 06 Nov 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 08 May 2012
Reporting date: 05 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Feb 2012
Reporting date: 03 Feb 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Dec 2011
Reporting date: 02 Dec 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 10 Nov 2011
Reporting date: 08 Nov 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 09 May 2011
Reporting date: 05 May 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 07 Feb 2011
Reporting date: 03 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 06 Dec 2010
Reporting date: 02 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 000-25434

FORM 4 SUBMISSION

Filing date: 07 May 2010
Reporting date: 05 May 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 000-25434

FORM 3 SUBMISSION

Filing date: 15 Apr 2010
Reporting date: 05 Apr 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

About this filer

Stephen S. Schwartz files with the SEC under CIK 0001247436. 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.