The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Chess Robert since 2006.
This trader's CIK number is 1227886.
At the time of last reporting, Chess Robert was the Officer of Twist Bioscience Corp. (stock ticker symbol TWST).
Also see all insider trading activities at Twist Bioscience Corp.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | TWST | 0 | $0 | 5,000 | $250,000 | 0 | $0 |
| 2024 | TWST | 0 | $0 | 7,710 | $314,323 | 3,600 | $31,752 |
| 2022 | TWST | 0 | $0 | 253 | $14,896 | 0 | $0 |
| 2021 | TWST | 0 | $0 | 20,706 | $2,542,967 | 0 | $0 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2024 | NKTR | 0 | $0 | 19,500 | $23,400 | 0 | $0 |
| 2022 | NKTR | 0 | $0 | 10,200 | $6,834 | 0 | $0 |
| 2022 | NKTR | 0 | $0 | 5,100 | $16,269 | 0 | $0 |
| 2021 | NKTR | 0 | $0 | 44,600 | $777,899 | 40,000 | $551,998 |
| 2020 | NKTR | 0 | $0 | 45,500 | $916,545 | 40,000 | $369,600 |
| 2019 | NKTR | 0 | $0 | 4,000 | $71,960 | 0 | $0 |
| 2018 | NKTR | 0 | $0 | 64,500 | $5,180,870 | 60,000 | $627,598 |
| 2017 | NKTR | 0 | $0 | 21,400 | $408,608 | 15,000 | $125,547 |
| 2016 | NKTR | 0 | $0 | 27,000 | $464,820 | 30,000 | $77,250 |
| 2015 | NKTR | 0 | $0 | 15,000 | $177,150 | 15,000 | $132,150 |
| 2014 | NKTR | 0 | $0 | 29,500 | $452,530 | 29,500 | $449,580 |
| 2012 | NKTR | 0 | $0 | 24,001 | $204,008 | 24,001 | $146,886 |
| 2011 | NKTR | 0 | $0 | 4,500 | $40,500 | 10,000 | $0 |
| 2010 | NKTR | 0 | $0 | 35,000 | $488,110 | 35,000 | $214,200 |
| 2008 | NKTR | 0 | $0 | 0 | $0 | 9,167 | $0 |
| 2007 | NKTR | 0 | $0 | 21,292 | $268,590 | 0 | $0 |
| 2006 | NKTR | 0 | $0 | 2,210 | $43,746 | 0 | $0 |
1. Twist Bioscience Corp (TWST)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-01-07 | TWST | Sale | 5,000 | 50.00 | 250,000 |
| 2024-11-11 | TWST | Sale | 3,600 | 47.37 | 170,539 |
| 2024-11-11 | TWST | Option Ex | 3,600 | 8.82 | 31,752 |
| 2024-02-08 | TWST | Sale | 4,110 | 34.98 | 143,784 |
| 2022-02-04 | TWST | Sale | 253 | 58.88 | 14,896 |
| 2021-11-01 | TWST | Sale | 4,000 | 120.15 | 480,612 |
| 2021-10-21 | TWST | Sale | 3,700 | 120.15 | 444,540 |
| 2021-10-19 | TWST | Sale | 300 | 120.00 | 36,000 |
| 2021-09-10 | TWST | Sale | 4,000 | 120.23 | 480,908 |
| 2021-07-12 | TWST | Sale | 4,000 | 126.97 | 507,864 |
| 2021-06-23 | TWST | Sale | 4,000 | 120.10 | 480,408 |
| 2021-02-05 | TWST | Sale | 706 | 159.54 | 112,635 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2024-06-14 | NKTR | Sale | 19,500 | 1.20 | 23,400 |
| 2022-09-22 | NKTR | Sale | 10,200 | .67 | 6,834 |
| 2022-09-22 | NKTR | Sale | 5,100 | 3.19 | 16,269 |
| 2021-09-22 | NKTR | Sale | 4,600 | 17.94 | 82,524 |
| 2021-09-08 | NKTR | Option Ex | 8,000 | 13.80 | 110,400 |
| 2021-09-09 | NKTR | Option Ex | 10,279 | 13.80 | 141,850 |
| 2021-09-08 | NKTR | Sale | 8,000 | 16.00 | 128,000 |
| 2021-09-09 | NKTR | Sale | 10,279 | 16.02 | 164,669 |
| 2021-07-22 | NKTR | Sale | 91 | 16.80 | 1,528 |
| 2021-07-21 | NKTR | Option Ex | 3,524 | 13.80 | 48,631 |
| 2021-07-21 | NKTR | Sale | 3,524 | 16.81 | 59,238 |
| 2021-07-22 | NKTR | Option Ex | 91 | 13.80 | 1,255 |
| 2021-07-20 | NKTR | Sale | 2,106 | 16.80 | 35,380 |
| 2021-07-20 | NKTR | Option Ex | 2,106 | 13.80 | 29,062 |
| 2021-05-12 | NKTR | Option Ex | 8,000 | 13.80 | 110,400 |
| 2021-05-12 | NKTR | Sale | 8,000 | 19.34 | 154,720 |
| 2021-04-14 | NKTR | Option Ex | 8,000 | 13.80 | 110,400 |
| 2021-04-14 | NKTR | Sale | 8,000 | 18.98 | 151,840 |
| 2020-09-25 | NKTR | Sale | 5,500 | 17.75 | 97,625 |
| 2020-09-08 | NKTR | Option Ex | 8,000 | 9.24 | 73,920 |
| 2020-09-08 | NKTR | Sale | 8,000 | 18.53 | 148,240 |
| 2020-07-08 | NKTR | Option Ex | 8,000 | 9.24 | 73,920 |
| 2020-07-08 | NKTR | Sale | 8,000 | 24.58 | 196,640 |
| 2020-04-15 | NKTR | Option Ex | 8,000 | 9.24 | 73,920 |
| 2020-04-15 | NKTR | Sale | 8,000 | 18.69 | 149,520 |
| 2020-03-11 | NKTR | Option Ex | 8,000 | 9.24 | 73,920 |
| 2020-03-11 | NKTR | Sale | 8,000 | 17.05 | 136,360 |
| 2020-02-12 | NKTR | Sale | 8,000 | 23.52 | 188,160 |
| 2020-02-12 | NKTR | Option Ex | 8,000 | 9.24 | 73,920 |
| 2019-09-27 | NKTR | Sale | 4,000 | 17.99 | 71,960 |
| 2018-09-19 | NKTR | Sale | 4,500 | 56.81 | 255,645 |
| 2018-06-05 | NKTR | Option Ex | 10,000 | 14.26 | 142,600 |
| 2018-06-05 | NKTR | Sale | 10,000 | 55.16 | 551,600 |
| 2018-05-03 | NKTR | Sale | 25,000 | 82.80 | 2,070,000 |
| 2018-05-03 | NKTR | Option Ex | 25,000 | 9.70 | 242,499 |
| 2018-04-06 | NKTR | Sale | 25,000 | 92.14 | 2,303,625 |
| 2018-04-06 | NKTR | Option Ex | 25,000 | 9.70 | 242,499 |
| 2017-09-21 | NKTR | Sale | 6,400 | 21.72 | 139,008 |
| 2017-05-15 | NKTR | Option Ex | 5,000 | 8.37 | 41,849 |
| 2017-05-15 | NKTR | Sale | 5,000 | 19.79 | 98,950 |
| 2017-04-17 | NKTR | Sale | 5,000 | 18.72 | 93,600 |
| 2017-04-17 | NKTR | Option Ex | 5,000 | 8.37 | 41,849 |
| 2017-03-14 | NKTR | Option Ex | 5,000 | 8.37 | 41,849 |
| 2017-03-14 | NKTR | Sale | 5,000 | 15.41 | 77,050 |
| 2016-09-15 | NKTR | Option Ex | 15,000 | .00 | 0 |
| 2016-09-15 | NKTR | Sale | 12,000 | 19.21 | 230,520 |
| 2016-08-01 | NKTR | Option Ex | 5,000 | 5.15 | 25,750 |
| 2016-08-01 | NKTR | Sale | 5,000 | 17.26 | 86,300 |
| 2016-07-01 | NKTR | Option Ex | 5,000 | 5.15 | 25,750 |
| 2016-07-01 | NKTR | Sale | 5,000 | 14.10 | 70,500 |
| 2016-06-01 | NKTR | Option Ex | 5,000 | 5.15 | 25,750 |
| 2016-06-01 | NKTR | Sale | 5,000 | 15.50 | 77,500 |
| 2015-06-19 | NKTR | Sale | 15,000 | 11.81 | 177,150 |
| 2015-06-19 | NKTR | Option Ex | 15,000 | 8.81 | 132,150 |
| 2014-12-29 | NKTR | Option Ex | 29,500 | 15.24 | 449,580 |
| 2014-12-29 | NKTR | Sale | 29,500 | 15.34 | 452,530 |
| 2012-07-13 | NKTR | Option Ex | 24,001 | 6.12 | 146,886 |
| 2012-07-13 | NKTR | Sale | 24,001 | 8.50 | 204,008 |
| 2011-03-07 | NKTR | Option Ex | 10,000 | .00 | 0 |
| 2011-03-08 | NKTR | Sale | 4,500 | 9.00 | 40,500 |
| 2010-05-10 | NKTR | Option Ex | 35,000 | 6.12 | 214,200 |
| 2010-05-10 | NKTR | Sale | 35,000 | 13.95 | 488,110 |
| 2008-11-14 | NKTR | Option Ex | 9,167 | .00 | 0 |
| 2007-03-22 | NKTR | Sale | 17,700 | 12.23 | 216,471 |
| 2007-01-08 | NKTR | Sale | 3,592 | 14.51 | 52,119 |
| 2006-03-07 | NKTR | Sale | 2,210 | 19.80 | 43,746 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Chess Robert (Officer of Twist Bioscience Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.