Marcus Jonathan L 4

What Happened
Marcus Jonathan L, Senior Managing Director and General Counsel at CME Group (CME), sold 3,291 shares in an open-market transaction on March 17, 2026, at $333.37 per share, yielding approximately $1,097,121. This was a sale (not a purchase) and thus typically viewed as a liquidity or routine transaction rather than an explicit bullish signal.

Key Details

• Transaction date: 2026-03-17; Price: $333.37 per share; Shares sold: 3,291; Proceeds: ~$1,097,121.
• Transaction type/code: Sale (S) — open-market sale.
• Filing date: Form 4 filed with the SEC on 2026-03-19 (within the standard two-business-day reporting window).
• Shares owned after the transaction: not provided in the excerpt of the filing.
• Footnote: Transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 18, 2025.

Context
A 10b5-1 plan typically means the sale was pre-scheduled and may reflect planned liquidity rather than a change in the insider’s view of the company. For retail investors, insider purchases generally carry more informational weight than routine sales; this transaction appears to be a routine, planned disposition.