William Porteous SEC EDGAR Filings (CIK 0001856453)

SEC EDGAR filings, ownership reports, and insider transactions for William Porteous.

Business address
251 Rhode Island Street, Suite 204, San Francisco, CA, 94103
Top holdings (ownership)
SPIR
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William Porteous has filed 20 SEC EDGAR filings since 17 Aug 2021

Latest Filings

Recent SEC filings for William Porteous including 4, 3.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 02 Jan 2026 001-39493
4 Open 4 document View SEC filing for 4 4 02 Oct 2025 01 Oct 2025 001-39493
4 Open 4 document View SEC filing for 4 4 02 Jul 2025 01 Jul 2025 001-39493
4 Open 4 document View SEC filing for 4 4 09 Jun 2025 05 Jun 2025 001-39493
4 Open 4 document View SEC filing for 4 4 03 Apr 2025 01 Apr 2025 001-39493
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025 001-39493
4 Open 4 document View SEC filing for 4 4 03 Oct 2024 01 Oct 2024 001-39493
4 Open 4 document View SEC filing for 4 4 03 Jul 2024 01 Jul 2024 001-39493
4 Open 4 document View SEC filing for 4 4 07 Jun 2024 05 Jun 2024 001-39493
4 Open 4 document View SEC filing for 4 4 03 Apr 2024 01 Apr 2024 001-39493
4 Open 4 document View SEC filing for 4 4 04 Jan 2024 02 Jan 2024 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Oct 2023 02 Oct 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jul 2023 03 Jul 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2023 14 Jun 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Apr 2023 03 Apr 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Jan 2023 20 Jan 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2023 03 Jan 2023 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 02 Sep 2022 01 Apr 2022 001-39493
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Nov 2021 09 Nov 2021 001-39493
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 17 Aug 2021 16 Aug 2021 001-39493

About this filer

William Porteous files with the SEC under CIK 0001856453. 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.

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