PETRILLO LOUIS T, an officer of a subsidiary, sold Arch Capital Group Ltd. ($ACGL) shares once on the open market in the last year, totaling $1.57 million. His most recent sale occurred on May 9, 2025. These sales rank 3960th among 11,678 individual insiders, below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 3, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | A | Stock Option (Right to Buy) | 10331 | $0.00 | 10,331.0000 | 379,100,000 | 9999.99% | 0.00% |
| March 4, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | F | Common Shares, $.0011 par value per share | 8030 | $98.42 | 151,590.0000 | 379,100,000 | 5.03% | 0.00% |
| March 3, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | A | Common Shares, $.0011 par value per share | 2889 | $0.00 | 159,620.0000 | 379,100,000 | 1.84% | 0.00% |
| Feb. 27, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | F | Common Shares, $.0011 par value per share | 312 | $100.15 | 156,731.0000 | 379,100,000 | 0.20% | 0.00% |
| Feb. 24, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | F | Common Shares, $.0011 par value per share | 412 | $99.18 | 139,907.0000 | 379,100,000 | 0.29% | 0.00% |
| Feb. 24, 2026 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | Officer of Subsidiary | A | Common Shares, $.0011 par value per share | 17136 | $0.00 | 157,043.0000 | 379,100,000 | 12.25% | 0.00% |
| Dec. 10, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 14 | $0.00 | 140,071.0000 | 379,100,000 | 0.01% | 0.00% |
| Dec. 10, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 42 | $0.00 | 140,071.0000 | 379,100,000 | 0.03% | 0.00% |
| May 9, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Common Shares, $.0011 par value per share | 16650 | $18.90 | 156,759.0000 | 381,800,000 | 11.88% | 0.00% |
| May 9, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Stock Option (right to buy) | 16650 | $0.00 | 0.0000 | 381,800,000 | 100.00% | 0.00% |
| May 9, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | S | Common Shares, $.0011 par value per share | 16650 | $94.53 | 140,109.0000 | 381,800,000 | 10.62% | 0.00% |
| May 9, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 10 | $0.00 | 140,099.0000 | 381,800,000 | 0.01% | 0.00% |
| May 9, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 10 | $0.00 | 140,099.0000 | 381,800,000 | 0.01% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Common Shares, $.0011 par value per share | 9400 | $15.84 | 149,499.0000 | 381,800,000 | 6.71% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 3042 | $0.00 | 150,015.0000 | 381,800,000 | 2.07% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 9916 | $91.87 | 140,099.0000 | 381,800,000 | 6.61% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | S | Common Shares, $.0011 par value per share | 9400 | $92.73 | 140,099.0000 | 381,800,000 | 6.29% | 0.00% |
| March 5, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Common Shares, $.0011 par value per share | 11600 | $15.84 | 151,699.0000 | 381,800,000 | 8.28% | 0.00% |
| March 5, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | S | Common Shares, $.0011 par value per share | 11600 | $91.00 | 140,099.0000 | 381,800,000 | 7.65% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Stock Option (right to buy) | 10764 | $0.00 | 10,764.0000 | 381,800,000 | 9999.99% | 0.00% |
| March 4, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Stock Option (right to buy) | 9400 | $0.00 | 11,600.0000 | 381,800,000 | 44.76% | 0.00% |
| March 5, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Stock Option (right to buy) | 11600 | $0.00 | 0.0000 | 381,800,000 | 100.00% | 0.00% |
| Feb. 24, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 412 | $89.55 | 126,067.0000 | 381,800,000 | 0.33% | 0.00% |
| Feb. 25, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 473 | $90.35 | 125,594.0000 | 381,800,000 | 0.38% | 0.00% |
| Feb. 27, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 313 | $92.10 | 125,281.0000 | 381,800,000 | 0.25% | 0.00% |
| Feb. 27, 2025 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 21692 | $0.00 | 146,973.0000 | 381,800,000 | 17.31% | 0.01% |
| Dec. 10, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 12 | $0.00 | 126,479.0000 | 382,300,000 | 0.01% | 0.00% |
| Dec. 10, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 36 | $0.00 | 126,479.0000 | 382,300,000 | 0.03% | 0.00% |
| Nov. 19, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 5944 | $0.00 | 126,503.0000 | 382,300,000 | 4.93% | 0.00% |
| Nov. 19, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Stock Option (right to buy) | 19884 | $0.00 | 19,884.0000 | 382,300,000 | 9999.99% | 0.01% |
| March 4, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 12992 | $87.14 | 120,260.0000 | 378,800,000 | 9.75% | 0.00% |
| Feb. 27, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 2608 | $0.00 | 133,252.0000 | 378,800,000 | 2.00% | 0.00% |
| Feb. 27, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Stock Option (right to buy) | 9257 | $0.00 | 9,257.0000 | 378,800,000 | 9999.99% | 0.00% |
| Feb. 23, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 14 | $0.00 | 132,131.0000 | 378,800,000 | 0.01% | 0.00% |
| Feb. 24, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 374 | $87.29 | 131,757.0000 | 378,800,000 | 0.28% | 0.00% |
| Feb. 25, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 510 | $87.29 | 131,247.0000 | 378,800,000 | 0.39% | 0.00% |
| Feb. 23, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 27638 | $0.00 | 132,131.0000 | 378,800,000 | 26.45% | 0.01% |
| Feb. 26, 2024 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 603 | $87.28 | 130,644.0000 | 378,800,000 | 0.46% | 0.00% |
| Dec. 7, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 14 | $0.00 | 104,493.0000 | 377,600,000 | 0.01% | 0.00% |
| Dec. 7, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 42 | $0.00 | 104,493.0000 | 377,600,000 | 0.04% | 0.00% |
| Nov. 15, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 1190 | $0.00 | 104,521.0000 | 377,600,000 | 1.13% | 0.00% |
| June 13, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 10 | $0.00 | 105,711.0000 | 377,600,000 | 0.01% | 0.00% |
| June 13, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 10 | $0.00 | 105,711.0000 | 377,600,000 | 0.01% | 0.00% |
| May 8, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Common Shares, $.0011 par value per share | 23250 | $19.09 | 135,423.0000 | 377,600,000 | 20.73% | 0.01% |
| May 8, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 14723 | $76.14 | 120,700.0000 | 377,600,000 | 10.87% | 0.00% |
| May 10, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | S | Common Shares, $.0011 par value per share | 15406 | $76.79 | 105,294.0000 | 377,600,000 | 12.76% | 0.00% |
| May 8, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | M | Share Appreciation Right | 23250 | $0.00 | 0.0000 | 377,600,000 | 100.00% | 0.01% |
| March 10, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 3047 | $66.61 | 112,173.0000 | 377,600,000 | 2.64% | 0.00% |
| Feb. 24, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 8454 | $0.00 | 113,708.0000 | 377,600,000 | 8.03% | 0.00% |
| Feb. 25, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 514 | $69.17 | 116,310.0000 | 377,600,000 | 0.44% | 0.00% |
| Feb. 24, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Common Shares, $.0011 par value per share | 3116 | $0.00 | 116,824.0000 | 377,600,000 | 2.74% | 0.00% |
| Feb. 24, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | A | Stock Option (right to buy) | 11478 | $0.00 | 11,478.0000 | 377,600,000 | 9999.99% | 0.00% |
| Feb. 27, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 488 | $69.21 | 115,220.0000 | 377,600,000 | 0.42% | 0.00% |
| Feb. 26, 2023 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | F | Common Shares, $.0011 par value per share | 602 | $69.17 | 115,708.0000 | 377,600,000 | 0.52% | 0.00% |
| Dec. 14, 2022 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 60 | $0.00 | 105,254.0000 | 0 | 0.06% | 0.00% |
| Dec. 14, 2022 | ARCH CAPITAL GROUP LTD. | $ACGL | PETRILLO LOUIS T | OFFICER OF SUBSIDIARY | G | Common Shares, $.0011 par value per share | 20 | $0.00 | 105,254.0000 | 0 | 0.02% | 0.00% |