NASDAQ:ACGLN

Arch Capital Group Stock Insider Trading

Financial Services > Insurance - Diversified

Buy ACGLN

*Your capital is at risk

$15.80

-0.1000 (-0.629%)

At Close: Jun 23, 2026

Arch Capital Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -73.66. In total, the insiders bought 2.15M and sold 1.76M ACGLN shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-73.66
● Buy	2.15M shares
● Sell	1.76M shares
62% Buy Activity Weak Negative Correlation
Sell Signal Medium Confidence Dec 12, 2025 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -73.66. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Aug 05, 2025 Sell	Common Shares, $.0011 par value per share G-Gift	Vollaro John D Director	Director	22 844 Value: $0
Aug 05, 2025 Buy	Common Shares, $.0011 par value per share G-Gift	Vollaro John D Director	Director	194 999 Value: $3.41M
Aug 01, 2025 Buy	Depositary Shares, Series G P-Purchase	Posner Brian S Director	Director	1 000 Value: $17.3K
Aug 01, 2025 Buy	Depositary Shares, Series G P-Purchase	Posner Brian S Director	Director	1 000 Value: $17.3K
May 16, 2025 Buy	Common Shares, $.0011 par value per share M-Exempt	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $238.7K
May 16, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $1.19M
May 16, 2025 Buy	Stock Option (right to buy) M-Exempt	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $238.7K
May 16, 2025 Buy	Stock Option (right to buy) M-Exempt	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $238.7K
May 16, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $1.19M
May 16, 2025 Buy	Common Shares, $.0011 par value per share M-Exempt	Morin Francois EVP And CFO	C-Suite Officer	12 630 Value: $238.7K
May 13, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Pasquesi John M Chair	Director	23 996 Value: $2.27M
May 13, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Pasquesi John M Chair	Director	23 996 Value: $2.27M
May 12, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Pasquesi John M Chair	Director	75 060 Value: $7.06M
May 12, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Pasquesi John M Chair	Director	75 060 Value: $7.06M
May 09, 2025 Buy	Common Shares, $.0011 par value per share M-Exempt	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $314.7K
May 09, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $1.57M
May 09, 2025 Sell	Common Shares, $.0011 par value per share G-Gift	Petrillo Louis T Officer Of Subsidiary	Officer	10 Value: $0
May 09, 2025 Buy	Common Shares, $.0011 par value per share G-Gift	Petrillo Louis T Officer Of Subsidiary	Officer	10 Value: $170
May 09, 2025 Buy	Stock Option (right to buy) M-Exempt	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $314.7K
May 09, 2025 Buy	Stock Option (right to buy) M-Exempt	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $314.7K
May 09, 2025 Buy	Common Shares, $.0011 par value per share G-Gift	Petrillo Louis T Officer Of Subsidiary	Officer	10 Value: $170
May 09, 2025 Sell	Common Shares, $.0011 par value per share G-Gift	Petrillo Louis T Officer Of Subsidiary	Officer	10 Value: $0
May 09, 2025 Sell	Common Shares, $.0011 par value per share S-Sale	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $1.57M
May 09, 2025 Buy	Common Shares, $.0011 par value per share M-Exempt	Petrillo Louis T Officer Of Subsidiary	Officer	16 650 Value: $314.7K
May 07, 2025 Buy	Common Shares, $.0011 par value per share A-Award	Goodman Laurie Director	Director	1 564 Value: $26.7K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks