NYSE:WRB-PF

W.r. Berkley 5.10% Stock Insider Trading

*Your capital is at risk

$19.24

-0.110 (-0.568%)

At Close: Jun 03, 2026

W.r. Berkley 5.10% Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 99.97. In total, the insiders bought 10.4M and sold 10.22K WRB-PF 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)	99.97
● Buy	10.4M shares
● Sell	10.22K shares
97% Buy Activity Weak Positive Correlation
Buy Signal High Confidence Dec 18, 2025 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 99.97. Confidence increased due to high data reliability score of 90. Supported by overwhelming buy-side pressure (97% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Mar 03, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	73 185 Value: $5.31M
Mar 03, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	38 991 Value: $2.79M
Mar 02, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	100 897 Value: $7.39M
Mar 02, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	45 103 Value: $3.26M
Feb 27, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	147 000 Value: $10.5M
Feb 26, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	7 509 Value: $541.5K
Feb 26, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	145 491 Value: $10.4M
Feb 25, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	14 356 Value: $1.03M
Feb 25, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	154 512 Value: $11.0M
Feb 24, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	61 594 Value: $4.39M
Feb 24, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	103 192 Value: $7.28M
Feb 23, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	16 410 Value: $1.18M
Feb 23, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	203 590 Value: $14.5M
Feb 20, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	160 582 Value: $11.4M
Feb 19, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	44 014 Value: $3.15M
Feb 19, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	300 986 Value: $21.2M
Feb 18, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	239 750 Value: $16.9M
Feb 18, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	45 250 Value: $3.21M
Feb 17, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	281 386 Value: $20.0M
Feb 13, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	4 314 Value: $303.3K
Feb 13, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	280 Value: $19.9K
Feb 13, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	15 406 Value: $1.07M
Feb 12, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	2 401 Value: $174.7K
Feb 12, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	17 599 Value: $1.27M
Feb 11, 2026 Buy	Common Stock P-Purchase	Mitsui Sumitomo Insurance Co Ltd 10 Percent Owner	10% Owner	9 289 Value: $646.4K

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