MMC · Insider Trading
Marsh & McLennan Companies, Inc.
Every open-market purchase and sale reported by MMC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-02 | John Q Doyle | President and CEO | MIXED | — | −$2.51M |
| 2025-11-18 | Steven A Mills | Director | A | +231 | +$42.34K |
| 2025-11-18 | Jan Siegmund | Director | J | +4 deriv. | — |
| 2025-11-18 | Jane H Lute | Director | MIXED | +182 deriv. | — |
| 2025-11-18 | Lloyd M Yates | Director | MIXED | +248 deriv. | — |
| 2025-11-18 | Tamara Ingram | Director | J | +37 deriv. | — |
| 2025-11-18 | Deborah C Hopkins | Director | J | +96 deriv. | — |
| 2025-11-18 | Anthony Anderson | Director | J | +75 deriv. | — |
| 2025-11-18 | Morton O Schapiro | Director | MIXED | +651 deriv. | — |
| 2025-09-03 | John Q Doyle | President and CEO | MIXED | — | −$3.01M |
| 2025-08-18 | Morton O Schapiro | Director | MIXED | +572 deriv. | — |
| 2025-08-18 | Jan Siegmund | Director | J | +4 deriv. | — |
| 2025-08-18 | Tamara Ingram | Director | J | +32 deriv. | — |
| 2025-08-18 | Steven A Mills | Director | A | +204 | +$42.44K |
| 2025-08-18 | Jane H Lute | Director | MIXED | +160 deriv. | — |
| 2025-08-18 | Lloyd M Yates | Director | MIXED | +217 deriv. | — |
| 2025-08-18 | Deborah C Hopkins | Director | J | +85 deriv. | — |
| 2025-08-18 | Anthony Anderson | Director | J | +66 deriv. | — |
| 2025-07-31 | Anthony Anderson | Director | Buy | +1,000 | +$201.61K |
| 2025-06-03 | Morton O Schapiro | Director | A | +929 deriv. | — |
| 2025-06-03 | John Q Doyle | President and CEO | MIXED | — | −$3.56M |
| 2025-06-03 | Judith Hartmann | Director | A | +929 | +$214.85K |
| 2025-06-03 | H Edward Hanway | Director | A | +929 | +$214.85K |
| 2025-06-03 | Steven A Mills | Director | A | +929 | +$214.85K |
| 2025-06-03 | Jan Siegmund | Director | A | +929 deriv. | — |
| 2025-06-03 | Jane H Lute | Director | A | +929 deriv. | — |
| 2025-06-03 | Lloyd M Yates | Director | A | +929 deriv. | — |
| 2025-06-03 | Tamara Ingram | Director | A | +929 deriv. | — |
| 2025-06-03 | Deborah C Hopkins | Director | A | +929 deriv. | — |
| 2025-06-03 | Anthony Anderson | Director | A | +929 deriv. | — |
| 2025-05-22 | Stacy Mills | Vice President and Controller | G | −218 | — |
| 2025-05-15 | Oscar Fanjul | Director | MIXED | +145 | +$32.43K |
| 2025-05-15 | Steven A Mills | Director | A | +185 | +$41.11K |
| 2025-05-15 | Jane H Lute | Director | MIXED | +139 deriv. | — |
| 2025-05-15 | Lloyd M Yates | Director | MIXED | +212 deriv. | — |
| 2025-05-15 | Tamara Ingram | Director | J | +24 deriv. | — |
| 2025-05-15 | Morton O Schapiro | Director | MIXED | +491 deriv. | — |
| 2025-05-15 | Deborah C Hopkins | Director | J | +68 deriv. | — |
| 2025-05-15 | Anthony Anderson | Director | J | +52 deriv. | — |
| 2025-04-07 | Paul Beswick | SVP, Chief Information Officer | MIXED | −1,237 | −$431.44K |
| 2025-04-01 | Dean Michael Klisura | President & CEO, Guy Carpenter | MIXED | — | −$1.55M |
| 2025-03-25 | Oscar Fanjul | Director | Sell | −5,000 | −$1.10M |
| 2025-03-18 | Patrick Tomlinson | President and CEO, Mercer | MIXED | +600 | −$144.58K |
| 2025-03-14 | Nicholas Mark Studer | President and CEO of OWG | MIXED | +17,605 | −$3.60M |
| 2025-03-11 | Stacy Mills | Vice President and Controller | Sell | −1,317 | −$309.46K |
| 2025-03-11 | Mark C McGivney | Chief Financial Officer | Sell | −10,510 | −$2.47M |
| 2025-03-11 | Dean Michael Klisura | President & CEO, Guy Carpenter | Sell | −7,121 | −$1.67M |
| 2025-03-07 | John Jude Jones | Chief Marketing Officer | MIXED | −1,024 | −$1.39M |
| 2025-03-05 | Martin South | President & CEO, Marsh | MIXED | −2,000 | −$3.79M |
| 2025-03-04 | Paul Beswick | SVP, Chief Information Officer | MIXED | +4,067 | −$902.47K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| John Q Doyle | President and CEO | 87,681 | $16.01M |
| Nicholas Mark Studer | President and CEO of OWG | 77,719 | $14.19M |
| Steven A Mills | Director | 51,453 | $9.40M |
| Oscar Fanjul | Director | 47,685 | $8.71M |
| H Edward Hanway | Director | 35,518 | $6.49M |
| Mark C McGivney | Chief Financial Officer | 33,678 | $6.15M |
| Martin South | President & CEO, Marsh | 29,682 | $5.42M |
| Lloyd M Yates | Director | 24,000 | $4.38M |
| Dean Michael Klisura | President & CEO, Guy Carpenter | 20,935 | $3.82M |
| Paul Beswick | SVP, Chief Information Officer | 15,759 | $2.88M |
| Carmen Fernandez | SVP, Chief People Officer | 10,156 | $1.85M |
| John Jude Jones | Chief Marketing Officer | 9,723 | $1.78M |
| Katherine Brennan | SVP and General Counsel | 5,497 | $1.00M |
| Patrick Tomlinson | President and CEO, Mercer | 3,202 | $584.75K |
| Judith Hartmann | Director | 2,974 | $543.11K |
| Stacy Mills | Vice President and Controller | 2,705 | $494.00K |
| Anthony Anderson | Director | 2,000 | $365.24K |
| Jane H Lute | Director | 1,657 | $302.60K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MMC quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.