Markel's primary business is property and casualty insurance. The company focuses primarily on specialty lines, ranging from areas such as executive liability to commercial equine insurance. The acquisition of Alterra in 2013 added substantial reinsurance operations, which now account for a little over 10% of premiums. The company uses capital generated by its insurance operations to buy noninsurance operations in diverse areas, such as bakery equipment manufacturing and residential homebuilding.

Based in Glen Allen, Virginia, and established in 1930, Markel Group Inc. is a specialty insurance company. Through Markel Ventures, the company invests in various industrial and service businesses that operate separately from its insurance business. Markel has 18,900 employees.

Insider-sentiment data from Vickers Stock Research continues to bounce wildly from week to week, resulting in no discernable trend. Indeed, stock investors (insiders included) are responding to major earnings news, multiple geopolitical events, the possible reshaping of the U.S. federal government as we know it, interest-rate uncertainty, and fear that inflation (thought to be back in the bottle) is possibly about to burst higher again. For now, the good news is that the change in insider sentiment this week is mostly a positive one, with almost all of the sell/buy ratios from Vickers improving week over week. Keeping in mind that the lower the ratio, the better, Vickers' Total One-Week Sell/Buy Ratio is 3.84 versus 6.17 last week and the Total Eight-Week Sell/Buy Ratio is 5.78 versus 6.02. On an exchange basis, the NYSE one-week ratio is 4.68 versus 9.00 and the eight-week ratio is 5.69 versus 5.66 (the one outlier). For the Nasdaq, the one-week ratio is 3.35 versus 5.21 last week and the eight-week ratio is 6.05 versus 6.54. On a sector basis, selling was the greatest in Healthcare over the last week, with shares valued at $674 million sold versus $7 million bought. Next up was Information Technology, with $129 million sold, and Consumer Discretionary, with $101 million sold. Selling activity was also of note in Industrial, Consumer Staples, Financial, and Energy. There were no sectors in which insider buying outpaced selling. This week, analysts at Vickers highlighted insider transactions of interest at Targa Resources Corp. (NYSE: TRGP) and AppLovin Corp. (NGS: APP).

Markel's primary business is property and casualty insurance. The company focuses primarily on specialty lines, ranging from areas such as executive liability to commercial equine insurance. The acquisition of Alterra in 2013 added substantial reinsurance operations, which now account for a little less than 15% of premiums. The company uses capital generated by its insurance operations to buy noninsurance operations in diverse areas, such as bakery equipment manufacturing and residential homebuilding.