Joseph D. Samberg

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

Total Filings

7

Stocks Covered

3

Latest Filing

Nov 25, 2025

Filings

NN

NextNav Inc.

SC 13G/A · Nov 25, 2025

10.1%

13.8M shares

NN

NextNav Inc.

SC 13G/A · Nov 18, 2025

9.9%

13.4M shares

NN

NextNav Inc.

SC 13G/A · Feb 13, 2025

9.3%

12.1M shares

NN

NextNav Inc.

SC 13G/A · Jan 22, 2024

10.7%

11.8M shares

DFTX

Mind Medicine (MINDMED) Inc.

SC 13G · Oct 7, 2022

5.0%

1.9M shares

NN

NextNav Inc.

SC 13G · Jul 25, 2022

6.1%

5.8M shares

CRNT

Ceragon Networks Ltd.

SC 13D · Jul 20, 2022

9.9%

8.3M shares