Sentell Stephanie Ann 4

What Happened
Stephanie Sentell, Chief Operations Officer of Shake Shack (SHAK), was awarded 6,397 restricted stock units (RSUs) on March 1, 2026 under the company's 2025 Incentive Award Plan (reported as an acquisition at $0.00). On the same date 337 shares of Class A stock were withheld/disposed to satisfy tax withholding related to previously granted RSUs; those 337 shares were reported at $96.01 each for proceeds of $32,355. Using the $96.01 per-share price shown for the withholding, the newly granted 6,397 RSUs imply an approximate market value of about $614,176 (reported grant itself is $0 acquisition price).

Key Details

• Transaction date: March 1, 2026.
• Award: 6,397 RSUs (grant, code A) reported at $0.00. RSUs vest in three equal installments on March 1, 2027; March 1, 2028; March 1, 2029 (see footnote F1).
• Tax withholding/disposition: 337 shares (code F) disposed at $96.01 each, total $32,355. These shares were withheld to satisfy taxes on RSUs granted March 1, 2025 that vest in three equal installments on March 1, 2026/2027/2028 (see footnote F2).
• Shares owned after transaction: not specified in this filing.
• Filing timeliness: Form 4 was filed March 3, 2026 for transactions on March 1, 2026; this is within the standard two business‑day reporting window and is not marked late.

Context
This filing reflects an equity award (RSUs) rather than an open‑market purchase; RSU grants are a form of compensation and vest over time. The 337‑share disposition was a routine tax withholding to cover withholding obligations on vested RSUs (not necessarily a discretionary open‑market sale). Grants can indicate alignment with shareholder interests but are standard executive compensation and do not by themselves indicate insider trading motivation.