KRIEGSHAUSER PATRICK A 4

What Happened
Patrick A. Kriegshauser, a director of Core Natural Resources (CNR), was granted 1,610 restricted stock units (RSUs) on 2026-02-17 under the Issuer's Omnibus Performance Incentive Plan. The RSUs were reported at $0 per unit (aggregate $0) and vest on the first anniversary of the grant date; each RSU is a contingent right to one share.

Key Details

• Insider: Patrick A. Kriegshauser — Director
• Transaction date: 2026-02-17; Form 4 filed: 2026-02-19 (timely, within the 2-business-day window)
• Transaction type/code: Grant of award (A) — restricted stock units (RSUs)
• Amount: 1,610 RSUs; price reported: $0; aggregate reported value: $0
• Shares beneficially owned after transaction: 24,958 total; 1,610 of those are unvested RSUs (per footnote)
• Footnotes: F1 — RSUs vest on first anniversary; F2 — of 24,958 shares reported, 1,610 are unvested RSUs
• No sale, purchase, 10b5-1 plan, or tax-withholding sale was reported in this filing

Context
RSUs are a grant (not a cash purchase) that convert into shares only if/when they vest; they are commonly used for director compensation. Because this is an award rather than an open-market purchase or sale, it should be viewed as compensation-related rather than a direct bullish or bearish trading signal.