Eric M. Van Deman Form 3 Filing - Initial Statement of Beneficial Ownership

This SEC Form 3 filing represents the initial statement of beneficial ownership for Eric M. Van Deman, who serves as Chief Accounting Officer of Hallador Energy Co. The filing was submitted on December 22, 2025, with a reporting period of December 1, 2025. The document indicates that Mr. Van Deman currently owns no securities in Hallador Energy Co., as evidenced by the "noSecuritiesOwned" field being marked as "1" and both derivative and non-derivative tables showing no holdings. This Form 3 is required under Section 16(a) of the Securities Exchange Act of 1934 for officers, directors, and principal shareholders to disclose their initial ownership positions in company securities. The filing establishes the baseline for future ownership reporting through Form 4 filings that will track any changes in his holdings.