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
Guardant Health, Inc. (GH)
Sector: Healthcare; Industry: Diagnostics & Research

Guardant Health, Inc., a precision oncology company, provides blood tests, data sets, and analytics in the United States and internationally. The company offers liquid biopsy tests for advanced stage cancer, such as Guardant360, a molecular diagnostic test that measures various cancer-related genes; and GuardantOMNI, a broader gene panel, including genes associated with homologous recombination repair deficiency and biomarkers for immuno-oncology applications. It also provides LUNAR-1 for minimal residual disease and recurrence detection in cancer survivors. Guardant Health, Inc. was incorporated in 2011 and is headquartered in Redwood City, California.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2020-11-10 MERESMAN STANLEY J Director Sell 5,000 $110.30 $551,500 Yes
2020-10-12 MERESMAN STANLEY J Director Sell 5,000 $109.37 $546,850 Yes
2020-09-10 MERESMAN STANLEY J Director Sell 5,000 $94.22 $471,100 Yes
2020-08-10 MERESMAN STANLEY J Director Sell 5,000 $87.00 $435,000 Yes
2020-07-10 MERESMAN STANLEY J Director Sell 6,000 $86.66 $519,960 Yes
2020-06-10 MERESMAN STANLEY J Director Sell 6,000 $80.59 $483,540 Yes
2020-05-11 MERESMAN STANLEY J Director Sell 6,500 $86.50 $562,250 Yes
2020-04-13 MERESMAN STANLEY J Director Sell 9,500 $66.62 $632,890 Yes
2020-02-13 MERESMAN STANLEY J Director Sell 2,000 $82.02 $164,040 Yes
2020-01-15 MERESMAN STANLEY J Director Sell 5,000 $79.55 $397,750 Yes
2019-12-12 MERESMAN STANLEY J Director Sell 5,000 $71.50 $357,500 Yes
2019-11-21 MERESMAN STANLEY J Director Sell 8,000 $78.65 $629,200 Yes
2019-11-19 MERESMAN STANLEY J Director Sell 10,000 $77.99 $779,889 Yes
2019-11-12 MERESMAN STANLEY J Director Sell 10,000 $70.97 $709,700 Yes
2019-11-05 MERESMAN STANLEY J Director Sell 10,000 $69.64 $696,357 Yes
2019-10-29 MERESMAN STANLEY J Director Sell 10,000 $70.34 $703,400 Yes
2019-10-22 MERESMAN STANLEY J Director Sell 10,000 $66.90 $669,036 Yes
2019-09-24 MERESMAN STANLEY J Director Sell 10,000 $73.69 $736,948 Yes
2019-09-17 MERESMAN STANLEY J Director Sell 10,000 $75.38 $753,801 Yes
2019-09-12 MERESMAN STANLEY J Director Sell 10,000 $76.36 $763,632 Yes

Insider Smart

Enphase Energy, Inc (ENPH) - ENPH was $10+ in 15Q1 then dropped to $2 and eventually went under $1. From 15Q4 to 17Q4 it built a 2-year-long base then BOOM! Stock went as high as $70 and likely will make a new high. Catch one or two moves like this you can retire early. One hint before the big move was that CEO and CFO were constantly accumulating, this kind of information is priceless.

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.