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
NantKwest, Inc. (NK)
Sector: Healthcare; Industry: Biotechnology

NantKwest, Inc., a clinical-stage immunotherapy company, develops immunotherapeutic treatments for cancer and viral infectious diseases in the United States. The company develops activated natural killer (aNK) cell, a natural killer cell-line and genetically modified derivative capable of killing cancer and virally infected cells; and Nant cancer vaccine, a personalized therapy that utilizes its off-the-shelf natural killer cells. The company was formerly known as Conkwest, Inc. and changed its name to NantKwest, Inc. in July 2015.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-10-08 Adcock Richard CEO & President Buy 1,930 $8.81 $16,995 No
2021-08-18 Cohen Cheryl Director Sell 45,531 $10.12 $460,750 No
2021-05-25 Simon Barry J. Director Sell 125,000 $16.14 $2,018,057 No
2021-02-05 Simon Barry J. Director Sell 22,100 $23.09 $510,267 Yes
2021-02-02 Simon Barry J. Director Sell 82,070 $20.65 $1,694,803 Yes
2021-01-28 Simon Barry J. Director Sell 47,930 $20.59 $987,067 Yes
2021-01-12 Nelson Sonja Chief Financial Officer Sell 16,364 $15.00 $245,460 Yes
2021-01-04 Nelson Sonja Chief Financial Officer Sell 39,271 $13.62 $534,938 Yes
2020-12-22 Simon Barry J. Director Sell 130,000 $18.05 $2,346,604 Yes
2020-12-10 Thomas John C Director Sell 42,592 $10.83 $461,122 No
2020-08-19 Thomas John C Director Sell 20,000 $9.19 $183,800 No
2020-08-13 Thomas John C Director Sell 60,000 $9.73 $583,642 No
2020-08-11 Cohen Cheryl Director Sell 30,000 $9.96 $298,785 No
2020-08-11 DRISCOLL FREDERICK W Director Sell 65,300 $10.23 $668,052 No
2020-07-21 Simon Barry J. Director Sell 130,000 $15.53 $2,019,329 Yes
2020-07-08 Simon Barry J. Director Sell 39,950 $13.14 $524,759 Yes
2020-06-30 Simon Barry J. Director Sell 9 $13.00 $117 Yes
2020-06-29 SOON-SHIONG PATRICK Chairman and CEO Buy 3,710,000 $12.12 $44,965,200 No
2020-06-23 Simon Barry J. Director Sell 200,041 $10.56 $2,112,950 Yes
2020-05-27 Simon Barry J. Director Sell 75,000 $7.56 $567,338 No
2020-05-21 Simon Barry J. See remarks Sell 36,932 $5.52 $203,698 No
2020-05-11 Simon Barry J. See remarks Sell 28,068 $5.50 $154,509 No
2019-12-16 Thomas John C Director Sell 30,000 $2.87 $86,000 No
2019-12-12 Thomas John C Director Sell 10,000 $1.99 $19,918 No
2019-09-09 Thomas John C Director Sell 24,000 $1.24 $29,790 No
2018-11-29 GORLIN STEVE Director Sell 138,349 $1.65 $228,276 No
2018-11-29 GORLIN STEVE Director Sell 151,159 $1.74 $263,110 No
2018-11-23 GORLIN STEVE Director Sell 32,212 $2.02 $64,934 No
2018-11-14 GORLIN STEVE Director Sell 196,280 $2.29 $450,068 No
2018-08-27 GORLIN STEVE Director Sell 50,000 $3.07 $153,513 No

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