Joseph D. Hammer
CIK: 0001576484
Transaction Breakdown
Open Market Buys (P)2 (100.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
XPON
Expion Energy, Inc.
DirectorOfficer
Discretionary Trading P&L
Holdings
About Hammer Joseph D
Hammer Joseph D (SEC CIK 0001576484) files insider reports with the SEC as Former Chief Executive Officer of Expion Energy, Inc. (XPON).
Signal8 holds 2 ownership filings by Hammer Joseph D (1 Form 3, 1 Form 4), filed between Nov 18, 2025 and Aug 25, 2026. Those filings report 2 transactions, the latest on Aug 21, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Hammer Joseph D's filings is in REDMOND, OR.
Recent filings by Hammer Joseph D
- Aug 21, 2026: Open-market purchases of XPON derivative securities (2 lines, Form 4, code P).
Other insiders filing for Expion Energy, Inc. (XPON)
- Jarvis Marcus Wesley, Director
- Schaffner Brian Paul, Director
- Shum Steve, Director
- Lefevre George, Director
- Nguyen Tien Quoc, Director
- Burell Scott R, Director