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
BERKSHIRE HATHAWAY INC (BRKB)


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2020-05-18 WITMER MERYL B Director Buy 1,008 $2243.37 $2,261,321 No
2016-01-05 WITMER MERYL B Director Buy 1,000 $129.85 $129,850 No

Insider Smart

Edesa Biotech, Inc. (EDSA) - President and CEO bought shares of EDSA in late May around $3, two weeks after their purchase, the stock jump to $9, very well timed buy.