Marcus Jonathan L 4/A

What Happened
Marcus Jonathan L, Senior Managing Director & General Counsel of CME Group, sold 3,291 shares of CME common stock on March 17, 2026. The shares were sold at $313.37 each for total proceeds of $1,031,301. This was a sale (not a purchase) and is commonly a routine liquidity event rather than an explicit statement about company prospects.

Key Details

• Transaction date: March 17, 2026 (reported in an amended Form 4 filed March 23, 2026).
• Price and size: 3,291 shares at $313.37 per share; total value $1,031,301.
• Method: Open market or private sale (reported as a sale).
• Shares owned after transaction: Not specified in the information provided in this amended filing.
• Footnotes: Transaction was executed under a Rule 10b5-1 trading plan adopted Feb 18, 2025 (F1). This filing is an amendment to correct the per‑share price reported on the original Form 4 filed Mar 19, 2026 (clerical error) — all other details unchanged (F2).
• Timeliness: Original Form 4 was filed March 19, 2026 for the March 17 trade; the March 23 amendment corrects the reported price.

Context
Because the sale was executed under a pre-arranged 10b5-1 plan, it was scheduled in advance and is less indicative of immediate insider sentiment. For retail investors, purchases by insiders tend to be more directly interpreted as bullish signals; sales like this are often for diversification or personal liquidity needs.