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
Sector: Healthcare; Industry: Biotechnology

Lexicon Pharmaceuticals, Inc., a biopharmaceutical company, focuses on the development and commercialization of pharmaceutical products. The company offers XERMELO, an orally-delivered small molecule drug candidate for the treatment of carcinoid syndrome diarrhea in combination with somatostatin analog therapy in adults.

Trade Date Insider Title Buy/Sell #Shares Price Value Option
2016-05-23 Tessmer James F VP, Finance & Accounting Sell 6,000 $13.00 $78,000 Yes
2014-12-12 Invus C.V. 10%-Owner, Director Buy 150,000 $0.88 $132,030 No
2014-12-10 Invus C.V. 10%-Owner, Director Buy 315,896 $0.90 $285,349 No
2014-11-26 Artal International S.C.A. 10%-Owner, Director Buy 149,253,731 $1.00 $150,000,000 No
2012-10-23 Invus, CV 10%-Owner, Director Buy 3,000,000 $2.25 $6,750,000 No
2012-10-23 Artal International S.C.A. 10%-Owner, Director Buy 3,000,000 $2.25 $6,750,000 No
2010-03-19 Ulys, LLC 10%-Owner Buy 94,270,206 $1.15 $108,410,737 No
2009-10-22 BARKER SAM L Director Buy 19,000 $1.56 $29,672 No
2009-10-15 Ulys, LLC 10%-Owner Buy 15,455,145 $1.50 $23,182,718 No

Insider Smart

Altimmune, Inc. (ALT) - Venrock Healthcare Capital Partners III, L.P., 10%-owner of ALT bought 1.3M shares in late May then added another 1.5M shares in June with an averaged ~$8 per share. 10 days after the accumulation, ALT price jumped to $10.

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.