NYSE:WRB-PG

W.r. Berkley 4.25% Stock Insider Trading

*Your capital is at risk

$15.83

+0.0500 (+0.317%)

At Close: Jul 31, 2026

W.r. Berkley 4.25% Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 100.00. In total, the insiders bought 9.39M and sold 0 WRB-PG 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)	100.00
● Buy	9.39M shares
● Sell	0 shares
100% Buy Activity Negligible or No Correlation
Buy Signal High Confidence Jul 20, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 100. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (100% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jan 14, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	208 272 Value: $14.4M
Jan 14, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	21 728 Value: $1.49M
Jan 13, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	206 499 Value: $14.1M
Jan 13, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	118 501 Value: $8.04M
Jan 12, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	256 041 Value: $17.6M
Jan 09, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	8 150 Value: $571.4K
Jan 09, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	105 674 Value: $7.35M
Jan 09, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	161 176 Value: $11.0M
Jan 08, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	151 511 Value: $10.7M
Jan 08, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	39 302 Value: $2.74M
Jan 08, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	4 187 Value: $288.0K
Jan 07, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	254 622 Value: $17.4M
Jan 07, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	10 378 Value: $718.2K
Jan 06, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	122 931 Value: $8.60M
Jan 06, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	92 357 Value: $6.48M
Jan 05, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	153 686 Value: $10.9M
Jan 05, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	35 894 Value: $2.52M
Jan 05, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	11 350 Value: $785.4K
Jan 02, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	237 734 Value: $16.5M
Dec 31, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	230 000 Value: $16.2M
Dec 30, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	205 000 Value: $14.5M
Dec 26, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	220 000 Value: $15.5M
Dec 24, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	220 000 Value: $15.5M
Dec 23, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	232 546 Value: $16.4M
Dec 23, 2025 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	2 027 Value: $144.2K

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