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
Summit Therapeutics Inc. (SMMT)
Sector: Healthcare; Industry: Biotechnology

Summit Therapeutics plc, a biopharmaceutical company, discovers, develops, and commercializes medicines to treat infectious diseases in the United States, Latin America, and Europe. It conducts clinical programs focusing on the Clostridium difficile infection (CDI). The company was formerly known as Summit Corporation plc and changed its name to Summit Therapeutics plc in February 2015. Summit Therapeutics plc was founded in 2003 and is based in Abingdon, the United Kingdom.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-05-12 DUGGAN ROBERT W Chief Executive Officer Buy 11,365,921 $5.24 $59,557,426 No
2021-05-12 Zanganeh Maky Chief Operating Officer Buy 389,077 $5.24 $2,038,763 No
2020-11-30 Powell David Jonathan Chief Scientific Officer Sell 43,282 $4.41 $190,694 Yes
2020-11-25 Powell David Jonathan Chief Scientific Officer Sell 30,431 $4.30 $130,770 Yes
2020-11-06 DUGGAN ROBERT W Chief Executive Officer Buy 14,071,856 $3.34 $46,999,999 No

Insider Smart

Delta Airlines (DAL) - From an insider's perspective: airlines are the first ones to go under due to the pandemic. A lot of concerns were raised on possible bankruptcy especially amid by the dump from Buffett. However, insiders of Delta were bold enough to buy when Buffett was fear. And Delta is the only airline bought by insiders post-Buffett-dump.

Insider Smart

Mohawk Group Holdings, Inc. (MWK) - Multiple insiders bought MWK in June around $5, stock moved sideways for a month then made a 60% jump in 10 days. Patience is the key.