Steven S. Williamson SEC EDGAR Filings (CIK 0001478582)

SEC EDGAR filings, ownership reports, and insider transactions for Steven S. Williamson.

Business address
C/O Pulmonx Corporation, 700 Chesapeake Drive, Redwood City, CA, 01730
Top holdings (ownership)
OM and LUNG
⭐ Add to watchlist ⭐
Get insider transactions for this reporting owner
Steven S. Williamson has filed 45 SEC EDGAR filings since 15 Dec 2009

Latest Filings

Recent SEC filings for Steven S. Williamson including 144, 4, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
144 Open 144 document View SEC filing for 144 22 Jan 2026
144 Open 144 document View SEC filing for 144 15 Jan 2026
144 Open 144 document View SEC filing for 144 14 Jan 2026
4 Open 4 document View SEC filing for 4 03 Sep 2025 02 Sep 2025 001-39562
4 Open 4 document View SEC filing for 4 04 Jun 2025 02 Jun 2025 001-39562
4 Open 4 document View SEC filing for 4 05 Mar 2025 03 Mar 2025 001-39562
4 Open 4 document View SEC filing for 4 22 Aug 2024 20 Aug 2024 001-39562
4 Open 4 document View SEC filing for 4 19 Mar 2024 15 Mar 2024 001-39562
3 Open 3 document View SEC filing for 3 19 Mar 2024 15 Mar 2024 001-39562
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Feb 2024 15 Feb 2024 001-39513
144 Open 144 document View SEC filing for 144 15 Feb 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Jan 2024 12 Jan 2024 001-39513
144 Open 144 document View SEC filing for 144 16 Jan 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Jan 2024 08 Jan 2024 001-39513
144 Open 144 document View SEC filing for 144 08 Jan 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Nov 2023 16 Nov 2023 001-39513
144 Open 144 document View SEC filing for 144 16 Nov 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Aug 2023 16 Aug 2023 001-39513
144 Open 144 document View SEC filing for 144 16 Aug 2023
144 Open 144 document View SEC filing for 144 16 May 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 May 2023 16 May 2023 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 May 2023 08 May 2023 001-39513
144 Open 144 document View SEC filing for 144 08 May 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Feb 2023 16 Feb 2023 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Jan 2023 27 Jan 2023 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Jan 2023 06 Jan 2023 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Nov 2022 16 Nov 2022 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 28 Jan 2022 26 Jan 2022 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 Jan 2022 21 Jan 2022 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Nov 2021 16 Nov 2021 001-39513
4 Open 4 document View SEC filing for 4 17 Nov 2020 15 Nov 2020 001-39513
3 Open 3 document View SEC filing for 3 09 Nov 2020 09 Nov 2020 001-39513
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Mar 2012 07 Mar 2012 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Nov 2011 09 Nov 2011 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Feb 2011 15 Feb 2011 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Feb 2011 11 Feb 2011 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Feb 2011 09 Feb 2011 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Jan 2011 14 Jan 2011 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Nov 2010 24 Nov 2010 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Nov 2010 11 Nov 2010 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Nov 2010 10 Nov 2010 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 Oct 2010 03 Feb 2010 000-18281
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Jun 2010 28 Jun 2010 000-18281

About this filer

Steven S. Williamson files with the SEC under CIK 0001478582. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

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.

Related pages