Brumder William George

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

10

Stocks Covered

6

Latest Filing

Nov 28, 2025

Filings

TMC

TMC the metals Co Inc.

SC 13G/A · Nov 28, 2025

7.6%

31.5M shares

OMEX

ODYSSEY MARINE EXPLORATION INC

SC 13G · Oct 15, 2025

5.9%

2.7M shares

TMC

TMC the metals Co Inc.

SC 13G/A · Sep 25, 2025

5.2%

21.1M shares

TMC

TMC the metals Co Inc.

SC 13G · Sep 24, 2025

5.4%

22.0M shares

GPRO

GoPro, Inc.

SC 13G/A · Aug 28, 2025

9.7%

12.8M shares

TRON

Tron Inc.

SC 13G/A · Aug 21, 2025

4.0%

1.3M shares

PRZO

ParaZero Technologies Ltd.

SC 13G · Aug 21, 2025

9.6%

1.6M shares

GPRO

GoPro, Inc.

SC 13G · Aug 21, 2025

8.5%

11.2M shares

TRON

Tron Inc.

SC 13G · Jul 17, 2025

6.8%

1.2M shares

HOVR

New Horizon Aircraft Ltd.

SC 13G · Jul 2, 2025

8.6%

2.8M shares