Van Deman Eric Matthew

Van Deman Eric Matthew is listed in filings as Chief Accounting Officer at Hallador Energy Company. This profile follows SEC Form 4 activity through Mar 11, 2026, including 1 public disclosure. Recent filings connect the profile to Hallador Energy Company (HNRG). The current snapshot covers public activity from Mar 11, 2026. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.