Why insider trading matters?

When insiders buy shares on the open market, this can thus be regarded as a strong endorsement by those that know the company the best -- they are literally betting their own money on the company's future. Insider selling, however, is not necessarily meaningful in any way, as there is a range of reasons for insiders to liquidate (some) of the shares they own.

- Seeking Alpha
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

Celldex Therapeutics, Inc. (CLDX) - Multiple insiders including President, EVP, CEO, CSO and Directors bought shares on Jun.9th, first time since 2018, this was very convincing and we initiated a position. Stock soared from $3 to 9$ in 2 days, and the run is still going on.

Insider Smart

Planet Fitness, Inc (PLNT) - Our position in PLNT is also inspired by insider trading, if insiders are comfortable and confident buying around $50, it is an easy hold if you can pick it up at an even lower price. Our avg cost of the position is ~$40 and is now with 50% profit.