Steven D. Heinemann

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

Total Filings

3

Stocks Covered

1

Latest Filing

Feb 10, 2026

Filings

NTIP

Network-1 Technologies, Inc.

SC 13G/A · Feb 10, 2026

5.9%

1.3M shares

NTIP

Network-1 Technologies, Inc.

SC 13G/A · Jan 29, 2024

8.2%

1.9M shares

NTIP

Network-1 Technologies, Inc.

SC 13G/A · Feb 14, 2023

8.6%

2.1M shares