As of the latest Form 4 filed Jun 15, 2026.
What Arch Capital Group Ltd. insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 46 most recent filings for ACGL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-15 | 2026-06-11 | PASQUESI JOHN M Director | GGift | +1.01M | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | PASQUESI JOHN M, Director | GGift | −1.01M | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-03 | Posner Brian S Director | SSale | −3.00K | $19.66 | $59.0K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-11 | Posner Brian S Director | SSale | −2.00K | $17.14 | $34.3K | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Triplett Neal F Director | AAward | +1.33K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Triplett Neal F, Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Ebong Francis Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | KILCOYNE MOIRA A. Director | AAward | +1.33K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | KILCOYNE MOIRA A., Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Houston Daniel Joseph Director | AAward | +1.33K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Houston Daniel Joseph, Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Goodman Laurie Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | MOCZARSKI ALEXANDER S Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | MALLESCH EILEEN A Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Posner Brian S Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | PASQUESI JOHN M Director | AAward | +1.86K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | PASQUESI JOHN M, Director | AAward | +1.33K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | PASQUESI JOHN M, Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | BUNCE JOHN L JR Director | AAward | +1.33K | — | — | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | BUNCE JOHN L JR, Director | AAward | +2.07K | — | — | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Houston Daniel Joseph Director | PPurchase | +5.30K | $94.09 | $499K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-11 | Posner Brian S Director | SSale | −3.00K | $17.12 | $51.3K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Gansberg David President, Arch Capital Group | SSale | −5.91K | $96.37 | $569K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Gansberg David, President, Arch Capital Group | MExercise | +10.8K | $18.90 | $204K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Papadopoulo Nicolas CEO | SSale | −21.9K | $96.31 | $2.11M | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Papadopoulo Nicolas, CEO | MExercise | +21.9K | $18.90 | $414K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Rajeh Maamoun President, Arch Capital Group | GGift | +40.6K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Rajeh Maamoun, President, Arch Capital Group | GGift | −40.6K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Gansberg David President, Arch Capital Group | FTax | −12.5K | $98.42 | $1.23M | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | PETRILLO LOUIS T Officer of Subsidiary | FTax | −8.03K | $98.42 | $790K | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Todd Christine Chief Investment Officer | AAward | +3.98K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Gansberg David President, Arch Capital Group | AAward | +6.84K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Morin Francois CFO and Treasurer | AAward | +5.33K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Rajeh Maamoun President, Arch Capital Group | AAward | +6.84K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Papadopoulo Nicolas CEO | AAward | +21.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | PETRILLO LOUIS T Officer of Subsidiary | AAward | +2.89K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-02 | 2026-02-27 | Gansberg David President, Arch Capital Group | FTax | −553.00 | $100.15 | $55.4K | No | Form 4 ↗ |
| 2026-03-02 | 2026-02-27 | PETRILLO LOUIS T Officer of Subsidiary | FTax | −312.00 | $100.15 | $31.2K | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Todd Christine Chief Investment Officer | AAward | +25.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Gansberg David President, Arch Capital Group | AAward | +28.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Gansberg David, President, Arch Capital Group | FTax | −509.00 | $99.18 | $50.5K | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Morin Francois CFO and Treasurer | AAward | +27.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Rajeh Maamoun President, Arch Capital Group | AAward | +28.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | Papadopoulo Nicolas CEO | AAward | +46.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | PETRILLO LOUIS T Officer of Subsidiary | AAward | +17.1K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | PETRILLO LOUIS T, Officer of Subsidiary | FTax | −412.00 | $99.18 | $40.9K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also ACGL’s full analysis or the market-wide insider trading feed. The tabs above jump to ACGL’s other SEC data.
Source: SEC Form 4 filings for ACGL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.