NYSE:MRSH

Marsh & Mclennan Companies Stock Insider Trading

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$190.79
-0.86 (-0.449%)
At Close: Aug 10, 2026

Marsh & Mclennan Companies Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 35.57. In total, the insiders bought 11.55M and sold 118.53K MRSH shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
35.57
Buy 11.55M shares
Sell 118.53K shares
82% Buy Activity
Weak Negative Correlation
Sell Signal Low Confidence
Jul 23, 2026

Analysis Breakdown:

  • Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 35.57.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 2 982
Value: $489.5K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 2 617
Value: $602.7K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 2 385
Value: $478.1K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 3 785
Value: $572.9K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 4 832
Value: $567.9K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 4 328
Value: $514.5K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 5 609
Value: $509.2K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 6 151
Value: $510.8K
Apr 01, 2026
Buy
Stock Options (Right to Buy)
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 9 161
Value: $670.6K
Apr 01, 2026
Buy
Restricted Stock Units
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 8 867
Value: $1.52M
Apr 01, 2026
Buy
Common Stock
Moynihan Edward Francis
President & CEO, Oliver Wyman
CEO / President 0
Value: $0
Apr 01, 2026
Buy
Restricted Stock Units
A-Award
Studer Nicholas Mark
President And CEO Marsh Risk
CEO / President 5 766
Value: $991.0K
Mar 15, 2026
Sell
Common Stock
F-InKind
Tomlinson Patrick
President And CEO, Mercer
CEO / President 627
Value: $107.9K
Mar 15, 2026
Buy
Restricted Stock Units
M-Exempt
Tomlinson Patrick
President And CEO, Mercer
CEO / President 1 228
Value: $234.3K
Mar 15, 2026
Buy
Common Stock
M-Exempt
Tomlinson Patrick
President And CEO, Mercer
CEO / President 1 228
Value: $234.3K
Mar 11, 2026
Sell
Common Stock
S-Sale
Jones John Jude
Chief Marketing Officer
Officer 2 362
Value: $410.1K
Mar 04, 2026
Buy
Stock Options (Right to Buy)
M-Exempt
Doyle John Q
President And CEO
CEO / President 16 655
Value: $1.22M
Mar 04, 2026
Sell
Common Stock
S-Sale
Doyle John Q
President And CEO
CEO / President 16 655
Value: $3.05M
Mar 04, 2026
Buy
Common Stock
M-Exempt
Doyle John Q
President And CEO
CEO / President 16 655
Value: $3.08M
Mar 03, 2026
Sell
Common Stock
S-Sale
Studer Nicholas Mark
President And CEO Of Owg
CEO / President 3 837
Value: $706.1K
Feb 28, 2026
Sell
Common Stock
F-InKind
Tomlinson Patrick
President And CEO, Mercer
CEO / President 1 139
Value: $212.7K
Feb 28, 2026
Buy
Common Stock
M-Exempt
Tomlinson Patrick
President And CEO, Mercer
CEO / President 2 219
Value: $423.4K
Feb 28, 2026
Buy
Restricted Stock Units
M-Exempt
Tomlinson Patrick
President And CEO, Mercer
CEO / President 2 219
Value: $423.4K
Feb 28, 2026
Buy
Restricted Stock Units
M-Exempt
Studer Nicholas Mark
President And CEO Of Owg
CEO / President 8 044
Value: $1.53M
Feb 28, 2026
Buy
Common Stock
M-Exempt
Studer Nicholas Mark
President And CEO Of Owg
CEO / President 8 044
Value: $1.53M

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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