SEC Insider Transactions from Horstman Marc.

Last updated: 2026-03-14 09:59 UTC | Total transactions: 2

Recent insider trading activity from Horstman Marc, including buys and sells reported to the SEC.

Set Up your own filters →
Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
June 2, 2025 NET Power Inc. $NPWR Horstman Marc Chief Operating Officer A Stock Options 240000 $0.00 240,000.0000 140,566,000 9999.99% 0.17%
June 2, 2025 NET Power Inc. $NPWR Horstman Marc Chief Operating Officer A Performance Stock Units 74766 $0.00 74,766.0000 140,566,000 9999.99% 0.05%