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
LEXICON PHARMACEUTICALS, INC. (LXRX)
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
2021-03-15 Tessmer James F VP, Finance & Accounting Sell 22,912 $6.92 $158,440 Yes
2019-08-02 Tessmer James F VP, Finance & Accounting Buy 10,000 $1.14 $11,400 No
2018-06-08 Tessmer James F VP, Finance & Accounting Sell 10,000 $12.91 $129,076 Yes
2016-06-06 Tessmer James F VP, Finance & Accounting Sell 1,500 $15.00 $22,500 Yes
2016-05-23 Tessmer James F VP, Finance & Accounting Sell 6,000 $13.00 $78,000 Yes

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

SYSCO CORP (SYY) - PELTZ NELSON and Frank Joshua D are insiders of SYSCO CORP, check their transactions to see how they sell high and buy low. Would that be more persuasive than just buy or sell?