1 unchanged sentence
Rule 10b5-1 Trading Arrangements
−Removed: During the three months ended March 31, 2026, no director or officer of Hallador adopted or terminated a "Rule 10b5-1 trading arrangement" or " non-Rule 10b5-1 trading arrangement ," as each term is defined in Item 408 of Regulation S-K.
−Removed: Underwriting Agreement dated January 13, 2026 (1)
−Removed: Credit Agreement, dated March 5, 2026, among Hallador Energy Company, the lenders party thereto, the letter of credit issuers party thereto and Texas Capital Bank, as administrative agent incorporated by reference to Form 8-K filed on March 10, 2026 (2)
−Removed: Master Power Purchase And Sale Agreement Long-Form Confirmation Letter dated May 1, 2026 *
+Added: During the second quarter of 2026 , Heath Lovell , the Company's Chief Operating Officer , adopted a trading arrangement for the sale of shares of the Company's common stock that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934 (a "Rule 10b5-1 trading arrangement").
+Added: The arrangement provides for the sale of up to 37,751 shares of the Company's common stock issuable upon the vesting and settlement of restricted stock units, and terminates on the earlier of December 31, 2027 or the completion of all sales under the arrangement .
+Added: During the three months ended June 30, 2026, no other director or officer of the Company adopted , modified, or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement as defined in Item 408(c).
+Added: Amendment of 2026 Executive Officer Incentive Plan and Severance Agreements – Chief Legal Officer effective June 8, 2026*++
+Added: Asset Purchase Agreement, dated as of May 30, 2026, by and between Energy World Corporation Ltd.
+Added: and Hallador Energy Company (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed June 2, 2026)
+Added: Severance Agreement, dated June 8, 2026, between Hallador Energy Company and Matthew White (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed June 11, 2026)++
+Added: Second Amendment to Credit Agreement, dated as of June 25, 2026, among Hallador Energy Company, Texas Capital Bank, as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed June 26, 2026)
SOX 302 Certification - Chief Executive Officer *
11 unchanged sentences
*Filed herewith.
−Removed: (1) Incorporated by reference to Form 8-K filed on January 15, 2026.
−Removed: (2) Incorporated by reference to Form 8-K filed on March 10, 2026.
+Added: ++ Management Agreement
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
HALLADOR ENERGY COMPANY
+Added: August 10, 2026
Bilsland, Chairman, President and CEO
+Added: August 10, 2026
+Added: August 10, 2026
/s/ERIC VAN DEMAN
1 unchanged sentence
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.