The law firm of Kirby McInerney LLP is investigating potential claims against HF Sinclair Corporation (“HF Sinclair” or the “Company”) (NYSE: DINO). The investigation concerns whether the Company and/or members of its senior management may have violated federal securities laws or engaged in other unlawful business practices.

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What Happened?

On February 18, 2026, HF Sinclair announced the Company’s Chief Executive Officer would take a voluntary leave of absence from his duties. The Company also noted that “[a]s separately announced today in the Company’s earnings press release, the Audit Committee of the Board is assessing certain matters relating to the Company’s disclosure processes.” On this news, the price of HF Sinclair shares declined by $6.28 per share, or approximately 10.9%, from $57.85 per share on February 17, 2026 to close at $51.57 on February 18, 2026.

What Should I Do?

At this stage, no lawsuit has been filed. The investigation is ongoing to determine whether claims may be brought under federal securities laws.

If you purchased or otherwise acquired HF Sinclair securities, have information, or would like to learn more about this investigation, please contact Lauren Molinaro of Kirby McInerney LLP by email at investigations@kmllp.com, or fill out the contact form below, to discuss your rights or interests with respect to these matters at no cost.

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Kirby McInerney LLP is a New York-based plaintiffs’ law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm’s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars. Additional information about the firm can be found at Kirby McInerney LLP’s website.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

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