PETRILLO LOUIS T (CIK 1227095) reported 21 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-05). Recent activity: Buy ACGL (2,889 shares), Sell ACGL (8,030 shares), Sell ACGL (312 shares), Sell ACGL (412 shares), Buy ACGL (17,136 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-05 | ARCH CAPITAL GROUP LTD. (ACGL) | Officer of Subsidiary | Buy | 2,889 | $0 |
| 2026-03-05 | ARCH CAPITAL GROUP LTD. (ACGL) | Officer of Subsidiary | Sell | 8,030 | $790,313 |
| 2026-03-02 | ARCH CAPITAL GROUP LTD. (ACGL) | Officer of Subsidiary | Sell | 312 | $31,247 |
| 2026-02-26 | ARCH CAPITAL GROUP LTD. (ACGL) | Officer of Subsidiary | Sell | 412 | $40,862 |
| 2026-02-26 | ARCH CAPITAL GROUP LTD. (ACGL) | Officer of Subsidiary | Buy | 17,136 | $0 |
| 2025-12-11 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 42 | $0 |
| 2025-12-11 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 14 | $0 |
| 2025-05-12 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 16,650 | $314,685 |
| 2025-05-12 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 16,650 | $1.6M |
| 2025-05-12 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 10 | $0 |
| 2025-05-12 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 10 | $0 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 3,042 | $0 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 9,916 | $910,983 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 9,400 | $148,896 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 9,400 | $871,662 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 11,600 | $183,744 |
| 2025-03-06 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 11,600 | $1.1M |
| 2025-02-28 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 412 | $36,895 |
| 2025-02-28 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 473 | $42,736 |
| 2025-02-28 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Sell | 313 | $28,827 |
| 2025-02-28 | ARCH CAPITAL GROUP LTD. (ACGL) | OFFICER OF SUBSIDIARY | Buy | 21,692 | $0 |
Source: SEC Form 4 filings · as of 2026-03-05