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
Zymeworks Inc. (ZYME)
Sector: Healthcare; Industry: Biotechnology

Zymeworks Inc., a clinical-stage biopharmaceutical company, engages in the discovery, development, and commercialization of bio-therapeutics for the treatment of cancer. The company's lead product candidates include ZW25, a bispecific antibody that is in Phase I and Phase II clinical trials for the treatment of biliary tract, gastroesophageal adenocarcinomas, breast, and other tumors; and ZW49, a bispecific antibody-drug conjugate that is in Phase I clinical trial for the treatment of advanced or metastatic HER2-expressing cancers.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-03-10 Tehrani Ali Chief Executive Officer Sell 4,392 $34.95 $153,516 Yes
2020-12-07 Tehrani Ali Chief Executive Officer Sell 850 $56.16 $47,736 No
2020-11-02 Tehrani Ali Chief Executive Officer Sell 3,500 $39.04 $136,624 No
2020-04-03 Tehrani Ali Chief Executive Officer Buy 575 $33.39 $19,199 No
2019-03-29 Tehrani Ali Chief Executive Officer Sell 3,000 $16.24 $48,720 No

Insider Smart

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ROYAL CARIBBEAN CRUISES (RCL) - Thompson Donald, Director of RCL feels safe and made a move. The only insiders bought RCL post crash.