Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Twist Bioscience Corp (TWST) since 2018 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Twist Bioscience Corp. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1581280.
Total stock buying since 2018: $2,482,096.
Total stock sales since 2018: $218,756,551.
Total stock option exercises since 2018: $16,164,094.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2026 | 0 | $0 | 196,172 | $9,586,798 | 57,496 | $1,384,072 |
| 2025 | 0 | $0 | 263,151 | $8,751,515 | 0 | $0 |
| 2024 | 0 | $0 | 118,437 | $5,127,800 | 3,600 | $31,752 |
| 2023 | 10,000 | $132,000 | 3,464 | $91,640 | 37,684 | $299,367 |
| 2022 | 8,550 | $250,096 | 70,986 | $3,054,548 | 73,510 | $1,342,259 |
| 2021 | 0 | $0 | 762,905 | $96,307,488 | 384,708 | $4,677,706 |
| 2020 | 0 | $0 | 1,114,543 | $85,973,231 | 481,691 | $7,283,377 |
| 2019 | 0 | $0 | 380,075 | $9,863,531 | 198,643 | $1,145,561 |
| 2018 | 150,000 | $2,100,000 | 0 | $0 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2021-09-10 | Leproust Emily M. (President & CEO) | Option Ex | 13,920 | 5.95 | 82,824 |
| 2021-09-10 | Chess Robert | Sale | 4,000 | 120.23 | 480,908 |
| 2021-09-09 | Leproust Emily M. (President & CEO) | Sale | 15,667 | 119.04 | 1,864,937 |
| 2021-09-09 | Leproust Emily M. (President & CEO) | Option Ex | 15,667 | 8.82 | 138,182 |
| 2021-09-02 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 117.99 | 318,808 |
| 2021-09-02 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-09-01 | Leproust Emily M. (President & CEO) | Sale | 6,329 | 115.79 | 732,853 |
| 2021-08-31 | Leproust Emily M. (President & CEO) | Sale | 30,011 | 109.69 | 3,291,936 |
| 2021-08-31 | Leproust Emily M. (President & CEO) | Option Ex | 30,011 | 7.38 | 221,631 |
| 2021-08-30 | Leproust Emily M. (President & CEO) | Sale | 33,662 | 108.62 | 3,656,467 |
| 2021-08-30 | Leproust Emily M. (President & CEO) | Option Ex | 9,530 | 5.95 | 56,703 |
| 2021-08-24 | Finn Patrick John (Chief Commercial Officer) | Sale | 91 | 108.26 | 9,851 |
| 2021-08-23 | Banyai William (See Remarks) | Sale | 20,054 | 105.03 | 2,106,291 |
| 2021-08-18 | Weiss Patrick (Chief Operating Officer) | Sale | 4,905 | 97.11 | 476,324 |
| 2021-08-18 | Weiss Patrick (Chief Operating Officer) | Option Ex | 4,905 | 20.17 | 98,919 |
| 2021-08-18 | Johannessen Jan | Sale | 5,000 | 97.11 | 485,550 |
| 2021-08-18 | Johannessen Jan | Option Ex | 5,000 | 14.00 | 70,000 |
| 2021-08-12 | Crandell Keith (Director) | Sale | 45,000 | 107.16 | 4,822,065 |
| 2021-08-03 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 117.27 | 316,863 |
| 2021-08-03 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-08-02 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 120.97 | 241,940 |
| 2021-07-26 | Banyai William (See Remarks) | Sale | 19,791 | 116.06 | 2,296,983 |
| 2021-07-21 | Weiss Patrick (Chief Operating Officer) | Sale | 4,905 | 119.75 | 587,373 |
| 2021-07-21 | Weiss Patrick (Chief Operating Officer) | Option Ex | 4,905 | 20.17 | 98,919 |
| 2021-07-21 | Thorburn James M (Chief Financial Officer) | Sale | 5,000 | 119.75 | 598,750 |
| 2021-07-21 | Thorburn James M (Chief Financial Officer) | Option Ex | 5,000 | 26.66 | 133,300 |
| 2021-07-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 127.38 | 254,756 |
| 2021-07-12 | Chess Robert | Sale | 4,000 | 126.97 | 507,864 |
| 2021-07-02 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 131.70 | 355,853 |
| 2021-07-02 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-06-23 | Weiss Patrick (Chief Operating Officer) | Sale | 4,905 | 118.34 | 580,457 |
| 2021-06-23 | Weiss Patrick (Chief Operating Officer) | Option Ex | 4,905 | 20.17 | 98,919 |
| 2021-06-23 | Chess Robert | Sale | 4,000 | 120.10 | 480,408 |
| 2021-06-21 | Banyai William (See Remarks) | Sale | 20,000 | 113.41 | 2,268,240 |
| 2021-06-14 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 113.94 | 227,870 |
| 2021-05-21 | Banyai William (See Remarks) | Sale | 20,275 | 96.34 | 1,953,273 |
| 2021-05-19 | Weiss Patrick (Chief Operating Officer) | Sale | 4,905 | 88.39 | 433,552 |
| 2021-05-19 | Weiss Patrick (Chief Operating Officer) | Option Ex | 4,905 | 20.17 | 98,919 |
| 2021-05-19 | Johannessen Jan | Sale | 5,000 | 88.39 | 441,950 |
| 2021-05-19 | Johannessen Jan | Option Ex | 5,000 | 14.00 | 70,000 |
| 2021-05-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 94.91 | 189,812 |
| 2021-05-04 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 117.39 | 317,187 |
| 2021-05-04 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-04-26 | Banyai William (See Remarks) | Sale | 19,878 | 137.31 | 2,729,388 |
| 2021-04-22 | Thorburn James M (Chief Financial Officer) | Sale | 5,000 | 133.47 | 667,350 |
| 2021-04-22 | Thorburn James M (Chief Financial Officer) | Option Ex | 5,000 | 11.59 | 57,950 |
| 2021-04-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 128.84 | 257,678 |
| 2021-04-05 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 126.72 | 342,397 |
| 2021-04-05 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-03-31 | Daniels Mark (See Remarks) | Sale | 1,167 | 112.28 | 131,030 |
| 2021-03-31 | Daniels Mark (See Remarks) | Option Ex | 1,167 | 26.66 | 31,112 |
| 2021-03-30 | Thorburn James M (Chief Financial Officer) | Sale | 6,000 | 110.00 | 660,000 |
| 2021-03-30 | Thorburn James M (Chief Financial Officer) | Option Ex | 6,000 | 26.66 | 159,960 |
| 2021-03-29 | Daniels Mark (See Remarks) | Sale | 377 | 114.39 | 43,125 |
| 2021-03-29 | Daniels Mark (See Remarks) | Option Ex | 377 | 8.82 | 3,325 |
| 2021-03-24 | Weiss Patrick (Chief Operating Officer) | Sale | 14,639 | 132.50 | 1,939,667 |
| 2021-03-24 | Weiss Patrick (Chief Operating Officer) | Option Ex | 14,639 | 20.17 | 295,224 |
| 2021-03-24 | Daniels Mark (See Remarks) | Sale | 620 | 132.50 | 82,150 |
| 2021-03-24 | Daniels Mark (See Remarks) | Option Ex | 620 | 23.33 | 14,464 |
| 2021-03-22 | Banyai William (See Remarks) | Sale | 20,000 | 133.02 | 2,660,400 |
| 2021-03-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 139.16 | 278,330 |
| 2021-03-04 | Daniels Mark (See Remarks) | Sale | 669 | 125.33 | 83,845 |
| 2021-03-04 | Daniels Mark (See Remarks) | Option Ex | 669 | 10.70 | 7,158 |
| 2021-03-03 | Ragusa Robert P | Sale | 10,588 | 133.10 | 1,409,241 |
| 2021-03-03 | Ragusa Robert P | Option Ex | 10,588 | 30.41 | 321,981 |
| 2021-03-02 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 145.35 | 392,735 |
| 2021-03-02 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-03-01 | Daniels Mark (See Remarks) | Sale | 1,543 | 140.78 | 217,223 |
| 2021-03-01 | Daniels Mark (See Remarks) | Option Ex | 1,543 | 17.74 | 27,372 |
| 2021-02-24 | Finn Patrick John (Chief Commercial Officer) | Sale | 183 | 134.31 | 24,578 |
| 2021-02-24 | Daniels Mark (See Remarks) | Sale | 620 | 134.31 | 83,272 |
| 2021-02-24 | Daniels Mark (See Remarks) | Option Ex | 620 | 23.33 | 14,464 |
| 2021-02-22 | Daniels Mark (See Remarks) | Sale | 981 | 146.98 | 144,187 |
| 2021-02-22 | Banyai William (See Remarks) | Sale | 20,275 | 144.18 | 2,923,330 |
| 2021-02-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 167.43 | 334,868 |
| 2021-02-09 | Leproust Emily M. (President & CEO) | Sale | 75,000 | 178.43 | 13,382,550 |
| 2021-02-09 | Barthelemy Nicolas | Sale | 5,000 | 177.61 | 888,035 |
| 2021-02-09 | Barthelemy Nicolas | Option Ex | 5,000 | 23.33 | 116,649 |
| 2021-02-05 | Chess Robert | Sale | 706 | 159.54 | 112,635 |
| 2021-02-04 | Daniels Mark (See Remarks) | Sale | 668 | 191.52 | 127,935 |
| 2021-02-04 | Daniels Mark (See Remarks) | Option Ex | 668 | 10.70 | 7,147 |
| 2021-02-02 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 183.59 | 496,060 |
| 2021-02-02 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-02-01 | Daniels Mark (See Remarks) | Sale | 1,166 | 166.74 | 194,418 |
| 2021-02-01 | Daniels Mark (See Remarks) | Option Ex | 1,166 | 26.66 | 31,085 |
| 2021-01-28 | Daniels Mark (See Remarks) | Sale | 377 | 161.02 | 60,704 |
| 2021-01-28 | Daniels Mark (See Remarks) | Option Ex | 377 | 8.82 | 3,325 |
| 2021-01-25 | Daniels Mark (See Remarks) | Sale | 905 | 193.00 | 174,665 |
| 2021-01-25 | Daniels Mark (See Remarks) | Option Ex | 620 | 23.33 | 14,464 |
| 2021-01-25 | Green Paula (SVP of Human Resources) | Sale | 246 | 193.00 | 47,478 |
| 2021-01-25 | Banyai William (See Remarks) | Sale | 14,099 | 192.95 | 2,720,345 |
| 2021-01-20 | Leproust Emily M. (President & CEO) | Sale | 5,000 | 210.21 | 1,051,025 |
| 2021-01-19 | Leproust Emily M. (President & CEO) | Sale | 20,000 | 200.78 | 4,015,560 |
| 2021-01-14 | Leproust Emily M. (President & CEO) | Sale | 10,000 | 182.92 | 1,829,199 |
| 2021-01-12 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 166.63 | 333,268 |
| 2021-01-05 | Finn Patrick John (Chief Commercial Officer) | Sale | 2,702 | 132.93 | 359,176 |
| 2021-01-05 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 2,702 | 19.60 | 52,967 |
| 2021-01-04 | Daniels Mark (See Remarks) | Sale | 669 | 138.61 | 92,730 |
| 2021-01-04 | Daniels Mark (See Remarks) | Option Ex | 669 | 10.70 | 7,158 |
| 2020-12-31 | Daniels Mark (See Remarks) | Sale | 1,166 | 152.13 | 177,383 |
| 2020-12-31 | Daniels Mark (See Remarks) | Option Ex | 1,166 | 26.66 | 31,085 |
| 2020-12-28 | Daniels Mark (See Remarks) | Sale | 377 | 167.10 | 62,996 |
| 2020-12-28 | Daniels Mark (See Remarks) | Option Ex | 377 | 8.82 | 3,325 |
| 2020-12-24 | Daniels Mark (See Remarks) | Sale | 620 | 167.79 | 104,029 |
| 2020-12-24 | Daniels Mark (See Remarks) | Option Ex | 620 | 23.33 | 14,464 |
| 2020-12-24 | Leproust Emily M. (President & CEO) | Option Ex | 5,300 | 5.95 | 31,535 |
| 2020-12-23 | Leproust Emily M. (President & CEO) | Sale | 5,000 | 169.74 | 848,685 |
| 2020-12-22 | Leproust Emily M. (President & CEO) | Sale | 5,000 | 160.46 | 802,310 |
| 2020-12-21 | Daniels Mark (See Remarks) | Option Ex | 12,451 | 9.76 | 121,521 |
| 2020-12-21 | Leproust Emily M. (President & CEO) | Sale | 10,000 | 150.42 | 1,504,160 |
| 2020-12-18 | Leproust Emily M. (President & CEO) | Sale | 2,000 | 145.44 | 290,884 |
| 2020-12-15 | Daniels Mark (See Remarks) | Sale | 70,475 | 133.05 | 9,376,769 |
| 2020-12-15 | Daniels Mark (See Remarks) | Option Ex | 68,844 | 15.09 | 1,038,993 |
| 2020-12-15 | Green Paula (SVP of Human Resources) | Sale | 4,634 | 139.73 | 647,508 |
| 2020-12-15 | Banyai William (See Remarks) | Sale | 20,000 | 132.75 | 2,654,980 |
| 2020-12-15 | Leproust Emily M. (President & CEO) | Sale | 70,000 | 133.43 | 9,340,380 |
| 2020-12-14 | Weiss Patrick (Chief Operating Officer) | Sale | 40,000 | 144.40 | 5,776,000 |
| 2020-12-14 | Weiss Patrick (Chief Operating Officer) | Option Ex | 40,000 | 20.17 | 806,680 |
| 2020-12-11 | Weiss Patrick (Chief Operating Officer) | Sale | 3,558 | 151.13 | 537,720 |
| 2020-12-11 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,558 | 7.38 | 26,275 |
| 2020-12-10 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 138.62 | 492,101 |
| 2020-12-10 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-12-10 | Thorburn James M (Chief Financial Officer) | Sale | 20,018 | 149.40 | 2,990,589 |
| 2020-12-10 | Thorburn James M (Chief Financial Officer) | Option Ex | 20,000 | 17.46 | 349,200 |
| 2020-12-07 | Finn Patrick John (Chief Commercial Officer) | Sale | 25,845 | 132.35 | 3,420,714 |
| 2020-12-07 | Finn Patrick John (Chief Commercial Officer) | Option Ex | 25,845 | 19.60 | 506,639 |
| 2020-12-07 | Crandell Keith | Sale | 75,000 | 103.40 | 7,755,000 |
| 2020-11-30 | Banyai William (See Remarks) | Sale | 2,790 | 113.65 | 317,083 |
| 2020-11-13 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 107.20 | 380,560 |
| 2020-11-13 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-11-12 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 102.90 | 365,295 |
| 2020-11-12 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-10-09 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 86.63 | 307,536 |
| 2020-10-09 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-10-08 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 89.58 | 318,009 |
| 2020-10-08 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-09-18 | Weiss Patrick (Chief Operating Officer) | Sale | 3,550 | 65.21 | 231,495 |
| 2020-09-18 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-09-17 | Weiss Patrick (Chief Operating Officer) | Sale | 11,121 | 60.75 | 675,600 |
| 2020-09-17 | Weiss Patrick (Chief Operating Officer) | Option Ex | 3,550 | 7.38 | 26,216 |
| 2020-09-16 | Green Paula (VP of Human Resources) | Sale | 26,988 | 63.49 | 1,713,603 |
| 2020-09-16 | Green Paula (VP of Human Resources) | Option Ex | 26,988 | 7.38 | 199,306 |
| 2020-09-09 | Thorburn James M (Chief Financial Officer) | Sale | 20,000 | 66.16 | 1,323,280 |
| 2020-09-09 | Thorburn James M (Chief Financial Officer) | Option Ex | 20,000 | 26.66 | 533,200 |
| 2020-09-08 | Leproust Emily M. (President & CEO) | Sale | 3,482 | 60.35 | 210,156 |
| 2020-09-08 | Thorburn James M (Chief Financial Officer) | Sale | 70,000 | 63.46 | 4,442,480 |
| 2020-09-08 | Thorburn James M (Chief Financial Officer) | Option Ex | 70,000 | 19.12 | 1,338,750 |
| 2020-09-04 | Leproust Emily M. (President & CEO) | Sale | 96,518 | 63.89 | 6,166,921 |
| 2020-09-04 | Thorburn James M (Chief Financial Officer) | Sale | 30,000 | 63.55 | 1,906,620 |
| 2020-09-04 | Thorburn James M (Chief Financial Officer) | Option Ex | 30,000 | 11.59 | 347,700 |
Insider trading activities including stock purchases, stock sales, and option exercises of TWST listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Twist Bioscience Corp (symbol TWST, CIK number 1581280) see the Securities and Exchange Commission (SEC) website.