Winkler Julie 4

What Happened

• Julie Winkler, Senior Managing Director and Chief Commercial Officer of CME Group, received a vesting award of 8,256 performance shares on 2026-03-15 valued at $311.40 per share (total ≈ $2,570,918).
• To satisfy tax withholding on the award, she surrendered 3,658 of those shares back to the company at the same per-share value (3,658 × $311.40 ≈ $1,139,101).
• This was an award/vesting event (code A) with shares surrendered for taxes (code F), not an open-market purchase or discretionary sale.

Key Details

• Transaction date: 2026-03-15; filing date: 2026-03-17. No late-filing flag reported in this Form 4.
• Award: 8,256 shares @ $311.40 = $2,570,918 (acquired).
• Tax withholding: 3,658 shares surrendered @ $311.40 = $1,139,101 (disposed).
• Shares owned after the transaction: not specified in this filing.
• Footnotes: (F1) These were performance shares granted in 2022 under CME’s Omnibus Stock Plan; the vested amount was determined by CME’s total shareholder return vs. the S&P 500 for the 2023–2025 performance period. (F2) The surrendered shares were used to satisfy tax withholding on the award.

Context

• This was a vesting of previously granted performance shares, not a market purchase — such awards reflect prior compensation arrangements and performance metric achievement rather than a direct insider market bet.
• The partial surrender of shares to cover taxes is a routine administrative step (cashless-withholding style) and does not by itself indicate a change in insider sentiment.