8-K Impact 6/10 Buyback

$DINO · HF Sinclair Corp

October 30, 2026 · AI-analyzed SEC filing

HF Sinclair entered into a Stock Purchase Agreement on October 29, 2026, to repurchase 2,350,000 shares from REH Advisors Inc. at $109.37 per share, for an aggregate ~$257 million. The transaction is the 23rd private buyback between the parties and is funded with cash on hand, expected to close around November 3, 2026. Following the repurchase, REH's beneficial ownership is expected to fall below the 5% board designation threshold, which could trigger a board resignation process by early 2027.

  • $257 million private repurchase of 2,350,000 shares at $109.37 per share from REH Advisors Inc.
  • This is the 23rd privately negotiated buyback between HF Sinclair and the REH selling stockholder.
  • REH's stake expected to fall below the 5% board designation threshold, triggering potential board resignation by January 2027.
  • Repurchase executed under the $1.5 billion share repurchase program authorized August 26, 2026.
  • $734 million remains available under the buyback authorization after this transaction.

Extended-hours trading shows DINO at $116.97, up +1.71% vs the regular close of $115.00. The market is treating the $257M buyback and the orderly unwind of the REH overhang as a positive signal, particularly given the 5% threshold crossing that could simplify governance.

This buyback simultaneously shrinks the float and unwinds a legacy control relationship, crossing the 5% governance threshold that could reshape the board.

Refining-sector peers have been returning cash to shareholders via buybacks; HF Sinclair's $1.5B program (now ~51% utilized) continues that trend while also reducing the legacy Sinclair family overhang.

The REH Designee board resignation process introduces governance uncertainty; if the REH parties remain below 5% on January 13, 2027, the designee must offer to resign within 30 days, and the Board has sole discretion to accept or reject.

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