Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2024
3 years of board service in total across 1 board, counting each seat separately. Longest: Mammoth Energy Services Inc., 2 years.
Mammoth Energy Services Inc.
Director · Chief Business Officer
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 18, 2026 | Nephros Inc. | Option exercise | +812 | $3.60 | $2,923 |
Questions about Joseph Jacobs
What boards is Joseph Jacobs on?
Joseph Jacobs sits on the board of Mammoth Energy Services Inc.
How long has Joseph Jacobs served on boards?
Our records show at least 3 years of board service across 1 board, the earliest from 2024.
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