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
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
2019-12-23 Wiley Michael J Chief Legal Officer Sell 6,148 $81.67 $502,098 Yes
2019-12-20 Talasaz AmirAli Chairman, President and COO Sell 25,219 $82.73 $2,086,391 Yes
2019-12-19 Wiley Michael J Chief Legal Officer Sell 43,000 $79.68 $3,426,322 No
2019-12-19 Talasaz AmirAli Chairman, President and COO Sell 247,919 $80.71 $20,009,043 Yes
2019-12-12 MERESMAN STANLEY J Director Sell 5,000 $71.50 $357,500 Yes
2019-12-03 CLARK IAN T Director Sell 2,690 $72.78 $195,778 Yes
2019-11-26 Talasaz AmirAli Chairman, President and COO Sell 4,206 $80.19 $337,279 Yes
2019-11-25 CLARK IAN T Director Sell 538 $78.17 $42,055 Yes
2019-11-25 Talasaz AmirAli Chairman, President and COO Sell 46,934 $80.19 $3,763,559 Yes
2019-11-21 MERESMAN STANLEY J Director Sell 8,000 $78.65 $629,200 Yes
2019-11-21 Kaul Samir Director Sell 27,423 $79.05 $2,167,788 No
2019-11-20 Talasaz AmirAli Chairman, President and COO Sell 1,310 $79.34 $103,940 No
2019-11-20 Talasaz AmirAli Chairman, President and COO Sell 174,219 $78.85 $13,738,018 Yes
2019-11-19 MERESMAN STANLEY J Director Sell 10,000 $77.99 $779,889 Yes
2019-11-18 BERTOCCI DEREK A Chief Financial Officer Sell 25,481 $79.58 $2,027,778 Yes
2019-11-12 MERESMAN STANLEY J Director Sell 10,000 $70.97 $709,700 Yes
2019-11-11 Wiley Michael J Chief Legal Officer Sell 6,779 $72.67 $492,627 Yes
2019-11-05 MERESMAN STANLEY J Director Sell 10,000 $69.64 $696,357 Yes
2019-11-04 CLARK IAN T Director Sell 2,690 $71.82 $193,196 Yes
2019-11-01 Lanman Richard B. Chief Medical Officer Sell 5,764 $69.96 $403,249 Yes
2019-10-29 MERESMAN STANLEY J Director Sell 10,000 $70.34 $703,400 Yes
2019-10-28 CLARK IAN T Director Sell 3,228 $70.00 $225,960 Yes
2019-10-22 MERESMAN STANLEY J Director Sell 10,000 $66.90 $669,036 Yes
2019-09-25 CLARK IAN T Director Sell 538 $72.00 $38,736 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
2019-09-11 SVF Bluebird (Cayman) Ltd 10%-Owner Sell 4,900,000 $77.00 $377,300,000 No
2019-09-03 CLARK IAN T Director Sell 2,690 $85.70 $230,533 Yes
2019-08-26 CLARK IAN T Director Sell 538 $94.05 $50,599 Yes

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?

Insider Smart

Upwork Inc (UPWK) - GRETSCH GREGORY C. Director of Upwork, made a bulk buy of 500K shares right before the big gap up, which is also the largest buy of the past 12 months.