Horstman Marc
SEC insider (Form 3/4/5 filer). CIK 0002070734. Chief Operating Officer at NET Power Inc. (NPWR). 2 reported Form 4/5 transactions since Sep 2024; latest on Jun 2, 2025. Located in DURHAM, NC.
Companies Horstman Marc has filed insider reports for
- NET Power Inc. (NPWR): Officer, Chief Operating Officer
Horstman Marc
CIK: 0002070734
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (100.0%)
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)
NPWR
NET Power Inc.
Officer