Marsh & McLennan Companies Inc. (MMC) — Insider Trading

All Insider Transactions MMC — 2026

What is Insider Trading on Marsh & McLennan Companies Inc.?

Legal insider trading occurs when executives, directors, and major shareholders (>10%) of a public company buy or sell shares of their own company and report it to the SEC via Form 4.

How to Read the Data

Open market purchases (P) — the strongest signal. The insider uses their own money to buy shares.

Signals to Watch for MMC

• Cluster buying: multiple Marsh & McLennan Companies Inc. insiders buying in the same week → very bullish signal
• Excessive selling: selling volume above historical average → possible concern signal
• Form 144: filing of a sale notice → imminent sale in the coming days/weeks
• 10b5-1 Plan: pre-programmed sales are less significant than discretionary sales

Sources & References

All data on this page comes directly from public SEC filings.

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