Paul M. Jacobi - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
Paul M. Jacobi has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
Profile
Paul M. Jacobi serves as Chief Business Officer of MAMMOTH ENERGY SERVICES, INC. (TUSK). Jacobi has reported 1 insider filing with the SEC since 2026. The most recent filing was in June 2026.
| Role | Chief Business Officer, Director |
|---|---|
| Notability | 34/100 |
Board memberships
- MAMMOTH ENERGY SERVICES, INC.
Reported roles
- Chief Business Officer
Awards & honors
- Holding the role of Chief Business Officer at Mammoth Energy Services, as disclosed in the 2026 SEC filing context.
Trading Pattern
InsiderAlpha's records for Paul M. Jacobi go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Paul M. Jacobi has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chief Business Officer, Director at MAMMOTH ENERGY SERVICES, INC. (TUSK) - 1 filing, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-22 | TUSK | MAMMOTH ENERGY SERVICES, INC. | J - Other acquisition / disposition | 3.2K | $0.00 |
Companies - Last 90 Days
- MAMMOTH ENERGY SERVICES, INC. (TUSK) - 1 filing, last 2026-06-22
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Paul M. Jacobi has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- WEXFORD CAPITAL LP - $10.47M of TUSK open-market activity in the last 12 months
- Arthur H. Amron - $32K of TUSK open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- PAULSON CO. INC.
- John Paulson
- Pentwater Capital Management LP
- Bryan Douglas Pereboom
- Gjorgi Popstefanov
- Adam D. Portnoy
- David Portnoy
- PRUDENTIAL FINANCIAL INC
Frequently Asked Questions
Who is Paul M. Jacobi?
Paul M. Jacobi serves as Chief Business Officer of MAMMOTH ENERGY SERVICES, INC. (TUSK). Jacobi has reported 1 insider filing with the SEC since 2026. The most recent filing was in June 2026.…
How many SEC Form 4 filings has Paul M. Jacobi submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Paul M. Jacobi's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Paul M. Jacobi profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.