Over the last 12 months, Marsh & Mclennan Companies insiders reported no purchases and 11 sales totaling $18.9M across SEC Form 4 filings. 45% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 2, 2026 | Brennan KatherineSVP and General Counsel · O | ▼ Sale | 1,197 | $187.9 | $225K | -14% | — |
| Sep 2, 2026 | Doyle John QPresident and CEO · O | ▼ Sale | 16,656 | $188.51 | $3.1M | -12.5% | plan |
| Aug 6, 2026 | Jones John JudeChief Marketing Officer · O | ▼ Sale | 6,500 | $191.96 | $1.2M | -81.5% | — |
| Jul 29, 2026 | Beswick PaulSVP, Chief Information Officer · O | ▼ Sale | 713 | $198 | $141K | -4.2% | plan |
| Jul 28, 2026 | South MartinChief Client Officer · O | ▼ Sale | 7,100 | $189.99 | $1.3M | -29.9% | — |
| Jul 23, 2026 | Yates Lloyd MD | ▼ Sale | 12,000 | $175.65 | $2.1M | -50% | — |
| Jun 2, 2026 | Doyle John QPresident and CEO · O | ▼ Sale | 16,656 | $161.71 | $2.7M | -12.5% | plan |
| Mar 11, 2026 | Jones John JudeChief Marketing Officer · O | ▼ Sale | 2,362 | $173.61 | $410K | -22.8% | — |
| Mar 4, 2026 | Doyle John QPresident and CEO · O | ▼ Sale | 16,655 | $183.3 | $3.1M | -12.5% | plan |
| Mar 3, 2026 | Studer Nicholas MarkPresident and CEO of OWG · O | ▼ Sale | 3,837 | $184.03 | $706K | -10.5% | — |
| Dec 1, 2025 | Doyle John QPresident and CEO · O | ▼ Sale | 21,079 | $182.22 | $3.8M | -19.4% | plan |
| Sep 2, 2025 | Doyle John QPresident and CEO · O | ▼ Sale | 21,079 | $205.65 | $4.3M | -19.4% | plan |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Marsh & Mclennan Companies filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $MRSH feed.