William George Brumder

Business address
55 E. 52 Nd Street, 28 Th Floor, New York, NY, 10055
Top holdings (ownership)
GPRO
Get insider transactions for this reporting owner
William George Brumder has filed 12 SEC EDGAR filings since 02 Jul 2025

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13G/A Open Document Open Filing 28 Nov 2025
SCHEDULE 13G Open Document Open Filing 15 Oct 2025
4 Open Document Open Filing OWNERSHIP DOCUMENT 26 Sep 2025 19 Sep 2025 001-36514
3 Open Document Open Filing OWNERSHIP DOCUMENT 26 Sep 2025 19 Sep 2025 001-36514
SCHEDULE 13G/A Open Document Open Filing 25 Sep 2025
SCHEDULE 13G Open Document Open Filing 24 Sep 2025
SCHEDULE 13G/A Open Document Open Filing 28 Aug 2025
SCHEDULE 13G/A Open Document Open Filing 21 Aug 2025
SCHEDULE 13G Open Document Open Filing 21 Aug 2025
SCHEDULE 13G Open Document Open Filing 21 Aug 2025
SCHEDULE 13G Open Document Open Filing 16 Jul 2025
SCHEDULE 13G Open Document Open Filing 02 Jul 2025