Why insider trading matters?

Numerous studies have examined whether there is evidence that U.S. insiders systematically trade on private information despite the legal deterrence. The consensus appears to be that insider purchases (but not sales) tend to be followed by positive abnormal stock price performance, particularly for small growth stocks.

- Prof. B. Espen Eckbo, Dartmouth College
MARKEL CORP (MKL)
Sector: Financial Services; Industry: Insurance—Property & Casualty

Markel Corporation, a diverse financial holding company, markets and underwrites specialty insurance products in the United States, the United Kingdom, Canada, and internationally. The company's Reinsurance segment offers general liability, professional liability, workers' compensation, medical malpractice, and environmental impairment liability; property treaty products for catastrophe, per risk, and retrocessional exposures; and specialty treaty reinsurance products comprising structured and whole turnover credit, political risk, mortgage and contract, and commercial surety reinsurance programs. This segment also provides healthcare, consulting, and others types of services to businesses and consumers, including management and technology consulting, behavioral healthcare, and retail intelligence. The company's Other segment operates as an insurance and investment fund manager offering a range of investment products, including insurance-linked securities, catastrophe bonds, insurance swaps, and weather derivatives; and program services. Markel Corporation was founded in 1930 and is headquartered in Glen Allen, Virginia.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-11-22 GAYNER THOMAS SINNICKSON Co-Chief Executive Officer Buy 25 $1251.30 $31,282 No
2016-02-16 GAYNER THOMAS SINNICKSON Co-Chief Executive Officer Sell 5,000 $826.03 $4,130,150 No
2012-12-31 GAYNER THOMAS SINNICKSON Pres. & Chief Investment Off. Buy 100 $430.34 $43,034 No

Insider Smart

PENN NATIONAL GAMING INC (PENN) - PENN took a deep dive from $36 to $5 due to the crash, anyone who was bold enough to pick up some shares in March or April could have made a 900% profit in 2 months. But bottom fishing is always easier said than done, if one took a safer bet and followed multiple insider buying around $18, a 100% profit is still impressive.

Insider Smart

Upwork Inc (UPWK) - GRETSCH GREGORY C. Director of Upwork, made a bulk buy of 500K shares right before the big gap up, which is also the largest buy of the past 12 months.