17 insiders reported 115 Form 4 transactions for ARCH CAPITAL GROUP LTD. (ACGL) over the past 18 months (most recent 2026-05-12). Recent activity: Posner Brian S (Director) Sell 2,000 shares, PASQUESI JOHN M (Director) Buy 1,327 shares, PASQUESI JOHN M (Director) Buy 2,071 shares, Houston Daniel Joseph (Director) Buy 2,071 shares, Posner Brian S (Director) Buy 2,071 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-12 | Posner Brian S | Director | Sell | 2,000 | $0 |
| 2026-05-07 | PASQUESI JOHN M | Director | Buy | 1,327 | $0 |
| 2026-05-07 | PASQUESI JOHN M | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Houston Daniel Joseph | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Posner Brian S | Director | Buy | 2,071 | $0 |
| 2026-05-07 | MALLESCH EILEEN A | Director | Buy | 2,071 | $0 |
| 2026-05-07 | MOCZARSKI ALEXANDER S | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Goodman Laurie | Director | Buy | 2,071 | $0 |
| 2026-05-07 | KILCOYNE MOIRA A. | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Ebong Francis | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Triplett Neal F | Director | Buy | 2,071 | $0 |
| 2026-05-07 | BUNCE JOHN L JR | Director | Buy | 1,327 | $0 |
| 2026-05-07 | BUNCE JOHN L JR | Director | Buy | 2,071 | $0 |
| 2026-05-07 | Houston Daniel Joseph | Director | Buy | 1,327 | $0 |
| 2026-05-07 | KILCOYNE MOIRA A. | Director | Buy | 1,327 | $0 |
| 2026-05-07 | Triplett Neal F | Director | Buy | 1,327 | $0 |
| 2026-05-07 | PASQUESI JOHN M | Director | Buy | 1,858 | $0 |
| 2026-03-12 | Posner Brian S | Director | Sell | 3,000 | $0 |
| 2026-03-12 | Papadopoulo Nicolas | CEO | Buy | 21,930 | $414,477 |
| 2026-03-12 | Papadopoulo Nicolas | CEO | Sell | 21,930 | $2.1M |
| 2026-03-12 | Gansberg David | President, Arch Capital Group | Buy | 10,770 | $203,553 |
| 2026-03-12 | Gansberg David | President, Arch Capital Group | Sell | 5,907 | $569,258 |
| 2026-03-06 | Rajeh Maamoun | President, Arch Capital Group | Sell | 40,600 | $0 |
| 2026-03-06 | Rajeh Maamoun | President, Arch Capital Group | Buy | 40,600 | $0 |
| 2026-03-05 | Gansberg David | President, Arch Capital Group | Buy | 6,843 | $0 |
Source: SEC Form 4 filings · as of 2026-05-12