Marsh & McLennan Companies, Inc. (MRSH) Insider Trading

Last 12 months

Insiders sold $18.9M and bought nothing on the open market.

68% of the selling was scheduled in advance under 10b5-1 plans. Director Lloyd M Yates sold $2.11M on Jul 23, 50% of their stake, outside a plan. The last open-market buy by an executive or director was in Jul 2025.

Net open-market

−$18.9M

0 buys · 11 sales

Under a 10b5-1 plan

68%

of the value sold

Insiders who bought / sold

0 / 7

executives and directors

Last open-market buy

Jul 2025

Jul 30, 2025

Get an email when MRSH's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 2	Katherine Brennan SVP and General Counsel	SoldNo plan	1,197	$187.90	$225k	14%	Form 4
Sep 2	John Q Doyle President and CEO	Sold10b5-1 plan	16,656	$188.51	$3.14M	12%	Form 4
Aug 6	John Jude Jones Chief Marketing Officer	SoldNo plan	6,500	$191.96	$1.25M	66%	Form 4
Jul 29	Paul Beswick SVP, Chief Information Officer	Sold10b5-1 plan	713	$198.00	$141k	4.2%	Form 4
Jul 28	Martin South Chief Client Officer	SoldNo plan	7,100	$189.99	$1.35M	30%	Form 4
Jul 23	Lloyd M Yates Director	SoldNo plan	12,000	$175.65	$2.11M	50%	Form 4
Jun 2	John Q Doyle President and CEO	Sold10b5-1 plan	16,656	$161.71	$2.69M	12%	Form 4
Mar 11	John Jude Jones Chief Marketing Officer	SoldNo plan	2,362	$173.61	$410k	19%	Form 4
Mar 4	John Q Doyle President and CEO	Sold10b5-1 plan	16,655	$183.30	$3.05M	11%	Form 4
Mar 3	Nicholas Mark Studer President and CEO of OWG	SoldNo plan	3,837	$184.03	$706k	11%	Form 4
Dec 1, 2025	John Q Doyle President and CEO	Sold10b5-1 plan	21,079	$182.22	$3.84M	19%	Form 4
Sep 2, 2025	John Q Doyle President and CEO	Sold10b5-1 plan	21,079	$205.65	$4.33M	19%	Form 4
Jul 29, 2025 – Jul 30, 2025	Anthony Anderson Director	Bought 2 parts	1,000	$201.62 average	$202k	100%	Form 4
Jun 2, 2025	John Q Doyle President and CEO	Sold10b5-1 plan	21,080	$232.05	$4.89M	19%	Form 4
Apr 3, 2025	Paul Beswick SVP, Chief Information Officer	Sold10b5-1 plan	2,237	$246.00	$550k	14%	Form 4
Mar 31, 2025	Dean Michael Klisura President & CEO, Guy Carpenter	Sold10b5-1 plan	9,569	$245.00	$2.34M	31%	Form 4
Mar 12, 2025	Nicholas Mark Studer President and CEO of OWG	SoldNo plan	49,390	$230.16	$11.4M	64%	Form 4
Mar 10, 2025	Dean Michael Klisura President & CEO, Guy Carpenter	Sold10b5-1 plan	7,121	$234.97	$1.67M	25%	Form 4
Mar 10, 2025	Mark C McGivney Chief Financial Officer	Sold10b5-1 plan	10,510	$234.97	$2.47M	24%	Form 4
Mar 10, 2025	Stacy Mills Vice President and Controller	Sold10b5-1 plan	1,317	$234.97	$309k	31%	Form 4
Mar 6, 2025	John Jude Jones Chief Marketing Officer	SoldNo plan 3 parts	10,824	$235.15 average	$2.55M	53%	Form 4
Mar 4, 2025	Martin South President & CEO, Marsh	SoldNo plan 4 parts	26,476	$239.59 average	$6.34M	61%	Form 4
Mar 3, 2025	Nicholas Mark Studer President and CEO of OWG	SoldNo plan	3,649	$238.74	$871k	25%	Form 4
Mar 3, 2025	John Q Doyle President and CEO	Sold10b5-1 plan	21,080	$237.05	$5M	19%	Form 4
Oct 30, 2024 – Oct 31, 2024	Oscar Fanjul Director	SoldNo plan 2 parts	5,000	$221.05 average	$1.11M	9.8%	Form 4

Sep 2No plan
Katherine Brennan
SVP and General Counsel · sold 1,197 at $187.90
$225k
14% of stake
Sep 210b5-1 plan
John Q Doyle
President and CEO · sold 16,656 at $188.51
$3.14M
12% of stake
Aug 6No plan
John Jude Jones
Chief Marketing Officer · sold 6,500 at $191.96
$1.25M
66% of stake
Jul 2910b5-1 plan
Paul Beswick
SVP, Chief Information Officer · sold 713 at $198.00
$141k
4.2% of stake
Jul 28No plan
Martin South
Chief Client Officer · sold 7,100 at $189.99
$1.35M
30% of stake
Jul 23No plan
Lloyd M Yates
Director · sold 12,000 at $175.65
$2.11M
50% of stake
Jun 210b5-1 plan
John Q Doyle
President and CEO · sold 16,656 at $161.71
$2.69M
12% of stake
Mar 11No plan
John Jude Jones
Chief Marketing Officer · sold 2,362 at $173.61
$410k
19% of stake
Mar 410b5-1 plan
John Q Doyle
President and CEO · sold 16,655 at $183.30
$3.05M
11% of stake
Mar 3No plan
Nicholas Mark Studer
President and CEO of OWG · sold 3,837 at $184.03
$706k
11% of stake
Dec 1, 202510b5-1 plan
John Q Doyle
President and CEO · sold 21,079 at $182.22
$3.84M
19% of stake
Sep 2, 202510b5-1 plan
John Q Doyle
President and CEO · sold 21,079 at $205.65
$4.33M
19% of stake
Jul 29, 2025 – Jul 30, 2025
Anthony Anderson
Director · bought 1,000 at avg $201.62
$202k
100% of stake
Jun 2, 202510b5-1 plan
John Q Doyle
President and CEO · sold 21,080 at $232.05
$4.89M
19% of stake
Apr 3, 202510b5-1 plan
Paul Beswick
SVP, Chief Information Officer · sold 2,237 at $246.00
$550k
14% of stake
Mar 31, 202510b5-1 plan
Dean Michael Klisura
President & CEO, Guy Carpenter · sold 9,569 at $245.00
$2.34M
31% of stake
Mar 12, 2025No plan
Nicholas Mark Studer
President and CEO of OWG · sold 49,390 at $230.16
$11.4M
64% of stake
Mar 10, 202510b5-1 plan
Dean Michael Klisura
President & CEO, Guy Carpenter · sold 7,121 at $234.97
$1.67M
25% of stake
Mar 10, 202510b5-1 plan
Mark C McGivney
Chief Financial Officer · sold 10,510 at $234.97
$2.47M
24% of stake
Mar 10, 202510b5-1 plan
Stacy Mills
Vice President and Controller · sold 1,317 at $234.97
$309k
31% of stake
Mar 6, 2025No plan
John Jude Jones
Chief Marketing Officer · sold 10,824 at avg $235.15
$2.55M
53% of stake
Mar 4, 2025No plan
Martin South
President & CEO, Marsh · sold 26,476 at avg $239.59
$6.34M
61% of stake
Mar 3, 2025No plan
Nicholas Mark Studer
President and CEO of OWG · sold 3,649 at $238.74
$871k
25% of stake
Mar 3, 202510b5-1 plan
John Q Doyle
President and CEO · sold 21,080 at $237.05
$5M
19% of stake
Oct 30, 2024 – Oct 31, 2024No plan
Oscar Fanjul
Director · sold 5,000 at avg $221.05
$1.11M
9.8% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MRSH, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in MRSH's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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