Neale Erin Rose 4

What Happened

• Erin Neale Rose, Senior Vice President and Chief Legal Officer of Sun Country, shows multiple transactions on May 13, 2026 tied to the Allegiant Travel merger. The Form 4 lists: disposition to issuer of 38,931 Company shares (direct), disposition to issuer of 20,150 derivative shares, a grant/acquisition of 36,720 derivative shares, and a disposition to issuer of 36,720 derivative shares. All transactions report N/A for per-share price because they were effected under the merger consideration rather than open-market trades.
• These entries reflect the closing of the merger agreement: Sun Country common shares were converted into a mix of cash ($4.10 per Sun Country share, per filing) and Allegiant common stock (merger exchange ratio 0.1557), and outstanding RSUs, PRSUs and options were assumed, converted, or settled into Allegiant equivalents under the merger terms.

Key Details

• Transaction date: May 13, 2026; Form filed May 15, 2026 (filed two days after the transactions).
• Reported transactions (all N/A price because of merger settlement): D — 38,931 direct shares; D — 20,150 derivative shares; A — 36,720 derivative shares (granted/assumed); D — 36,720 derivative shares (disposed/settled).
• Shares owned prior to conversion: filing notes 8,385 Sun Country common shares and various outstanding RSU/PRSU/option awards that were converted per merger terms.
• Notable footnotes: (1) Transactions result from the Agreement and Plan of Merger with Allegiant (two-step merger). (2) Sun Country entity name changed to Sun Country Airlines Holdings, LLC. (3–6) Company common shares, RSUs, PRSUs and options were converted into cash and/or Allegiant stock or adjusted Allegiant awards/options; RSU/PRSU treatment (including double-trigger vesting protections for some awards) and option adjustments are described in the filing.
• Timeliness: Filing appears timely (Form 4 filed two days after the May 13 transactions).

Context

• These are not open-market buys/sells but merger-related conversions and settlements: derivative awards (RSUs/PRSUs and converted options) were converted into Allegiant awards or settled for merger consideration. Because the consideration includes a cash component and an exchange into Allegiant shares, the Form 4 reports N/A per-share prices rather than market trade prices.
• This filing documents corporate-merger-driven transfers rather than voluntary insider trading; it does not by itself indicate a buy/sell signal about future stock performance.