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 19 SEC EDGAR filings since 17 Aug 2021

Latest Filings

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