TWST Twist Bioscience Corporation

NASDAQ
$127.22

Twist Bioscience Corporation (TWST) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with TWST's own trailing one-year pace, with 72% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 8 sellers in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
10
160 transactions
Purchases
$0
0 shares
Sales
$73.8M
960,368 shares
Net activity
-$73.8M
purchases less sales

How much of that selling was preplanned? 72% planned / 28% discretionary

10b5-1 plan sales $53.4M 47 transactions · 558,498 shares
Discretionary sales $20.4M 113 transactions · 401,870 shares

Largest single sale: $14.2M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

No open-market insider purchase on record.

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Leproust Emily M. Chief Executive Officer Sell 2,302 $122.62 $282.3K 768,427 −0.3% of holding
Green Paula SVP of Human Resources Sell 907 $122.62 $111.2K 117,014 −0.8% of holding
Cho Dennis See Remarks Sell 412 $122.62 $50.5K 73,651 −0.6% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 238 $122.62 $29.2K 44,399 −0.5% of holding
Leproust Emily M. 5 fills Chief Executive Officer Sell 10b5-1 41,570 $151.98 $6.3M 799,651 −4.9% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 854 $140.77 $120.2K 44,637 −1.9% of holding
Leproust Emily M. Chief Executive Officer Sell 6,639 $139.07 $923.3K 812,299 −0.8% of holding
Finn Patrick John President and COO Sell 4,046 $139.07 $562.7K 210,802 −1.9% of holding
Laponis Adam Chief Financial Officer Sell 1,965 $139.07 $273.3K 108,633 −1.8% of holding
Cho Dennis See Remarks Sell 1,598 $139.07 $222.2K 74,063 −2.1% of holding
Green Paula SVP of Human Resources Sell 1,360 $139.07 $189.1K 117,921 −1.1% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 669 $139.07 $93.0K 45,491 −1.4% of holding
Cho Dennis See Remarks Sell 10b5-1 14,205 $129.75 $1.8M 75,661 −15.8% of holding
Finn Patrick John 7 fills President and COO Sell 10b5-1 78,355 $117.64 $9.2M 259,679 −23.2% of holding
Leproust Emily M. Chief Executive Officer Sell 10b5-1 19,952 $125.08 $2.5M 818,938 −2.4% of holding
BLAKE KATRYN Director Sell 2,240 $122.88 $275.3K 17,208 −11.5% of holding
Leproust Emily M. Chief Executive Officer Sell 10b5-1 113,318 $125.16 $14.2M 818,938 −12.2% of holding
CHESS ROBERT Director Sell 10b5-1 18,417 $110.89 $2.0M 21,084 −46.6% of holding
Cho Dennis See Remarks Sell 10b5-1 14,205 $109.75 $1.6M 89,866 −13.6% of holding
Leproust Emily M. Chief Executive Officer Sell 5,101 $85.32 $435.2K 818,938 −0.6% of holding
Finn Patrick John President and COO Sell 2,888 $85.32 $246.4K 269,678 −1.1% of holding
Green Paula SVP of Human Resources Sell 1,133 $85.32 $96.7K 119,281 −0.9% of holding
Cho Dennis See Remarks Sell 1,070 $85.32 $91.3K 104,071 −1% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 167 $85.32 $14.2K 46,160 −0.4% of holding
Finn Patrick John President and COO Sell 2,238 $93.89 $210.1K 272,566 −0.8% of holding
Laponis Adam Chief Financial Officer Sell 2,399 $94.33 $226.3K 110,276 −2.1% of holding
Leproust Emily M. Chief Executive Officer Sell 10b5-1 18,880 $95.00 $1.8M 824,039 −2.2% of holding
Cho Dennis See Remarks Sell 10b5-1 14,205 $89.75 $1.3M 105,141 −11.9% of holding
Leproust Emily M. Chief Executive Officer Sell 1,688 $87.32 $147.4K 842,919 −0.2% of holding
Cho Dennis See Remarks Sell 346 $87.32 $30.2K 119,346 −0.3% of holding
Green Paula SVP of Human Resources Sell 291 $87.32 $25.4K 120,414 −0.2% of holding
Green Paula 2 fills SVP of Human Resources Sell 26,137 $81.67 $2.1M 122,733 −17.6% of holding
Leproust Emily M. Chief Executive Officer Sell 2,265 $69.84 $158.2K 844,607 −0.3% of holding
WERNER ROBERT F. 2 fills Chief Accounting Officer Sell 1,359 $69.20 $94.0K 47,954 −2.8% of holding
Green Paula SVP of Human Resources Sell 884 $69.84 $61.7K 120,705 −0.7% of holding
Cho Dennis See Remarks Sell 402 $69.84 $28.1K 119,692 −0.3% of holding
Cho Dennis See Remarks Sell 10b5-1 14,205 $69.75 $990.8K 120,094 −10.6% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 4,000 $70.00 $280.0K 112,675 −3.4% of holding
Leproust Emily M. 4 fills Chief Executive Officer Sell 10b5-1 16,470 $67.91 $1.1M 861,860 −1.9% of holding
Starovasnik Melissa A. Director Sell 10b5-1 2,500 $68.00 $170.0K 22,222 −10.1% of holding
Leproust Emily M. 2 fills Chief Executive Officer Sell 10b5-1 25,017 $65.29 $1.6M 848,137 −2.9% of holding
Leproust Emily M. Chief Executive Officer Sell 10b5-1 24,282 $65.08 $1.6M 846,872 −2.8% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 800 $62.48 $50.0K 48,186 −1.6% of holding
Starovasnik Melissa A. Director Sell 10b5-1 500 $61.04 $30.5K 24,722 −2% of holding
Leproust Emily M. Chief Executive Officer Sell 6,888 $53.26 $366.8K 846,872 −0.8% of holding
Finn Patrick John President and COO Sell 4,160 $53.26 $221.5K 274,804 −1.5% of holding
Laponis Adam Chief Financial Officer Sell 2,019 $53.26 $107.5K 116,675 −1.7% of holding
Cho Dennis See Remarks Sell 1,642 $53.26 $87.4K 134,299 −1.2% of holding
Green Paula SVP of Human Resources Sell 1,399 $53.26 $74.5K 121,589 −1.1% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 688 $53.26 $36.6K 48,986 −1.4% of holding
JOHANNESSEN JAN Director Sell 12,000 $56.12 $673.4K 17,754 −40.3% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 4,961 $56.88 $282.2K 49,674 −9.1% of holding
Leproust Emily M. Chief Executive Officer Sell 5,127 $57.15 $293.0K 853,760 −0.6% of holding
Finn Patrick John President and COO Sell 2,844 $57.15 $162.5K 278,964 −1% of holding
Cho Dennis See Remarks Sell 1,962 $57.15 $112.1K 135,941 −1.4% of holding
Green Paula SVP of Human Resources Sell 1,116 $57.15 $63.8K 122,988 −0.9% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 164 $57.15 $9.4K 54,635 −0.3% of holding
Starovasnik Melissa A. Director Sell 10b5-1 500 $61.83 $30.9K 25,222 −1.9% of holding
Finn Patrick John President and COO Sell 2,321 $60.76 $141.0K 281,808 −0.8% of holding
Leproust Emily M. 2 fills Chief Executive Officer Sell 10b5-1 8,061 $65.29 $526.3K 859,038 −0.9% of holding
Leproust Emily M. Chief Executive Officer Sell 10b5-1 1,610 $65.01 $104.7K 858,887 −0.2% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 4,000 $60.00 $240.0K 118,694 −3.3% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 3,000 $55.00 $165.0K 122,694 −2.4% of holding
Laponis Adam Chief Financial Officer Sell 2,597 $49.89 $129.6K 125,694 −2% of holding
Starovasnik Melissa A. Director Sell 10b5-1 1,000 $51.00 $51.0K 25,722 −3.7% of holding
Leproust Emily M. Chief Executive Officer Sell 1,742 $43.79 $76.3K 858,887 −0.2% of holding
Cho Dennis See Remarks Sell 354 $43.79 $15.5K 137,903 −0.3% of holding
Green Paula SVP of Human Resources Sell 297 $43.79 $13.0K 124,104 −0.2% of holding
CHESS ROBERT Director Sell 10b5-1 10,000 $47.00 $470.0K 21,084 −32.2% of holding
Leproust Emily M. Chief Executive Officer Sell 2,423 $46.43 $112.5K 860,629 −0.3% of holding
Green Paula SVP of Human Resources Sell 935 $46.43 $43.4K 124,401 −0.7% of holding
Cho Dennis See Remarks Sell 425 $46.43 $19.7K 138,257 −0.3% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 246 $46.43 $11.4K 54,799 −0.4% of holding
Leproust Emily M. Chief Executive Officer Sell 7,205 $46.71 $336.5K 863,052 −0.8% of holding
Finn Patrick John President and COO Sell 4,294 $46.71 $200.6K 284,129 −1.5% of holding
Laponis Adam Chief Financial Officer Sell 2,085 $46.71 $97.4K 128,291 −1.6% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 1,693 $46.71 $79.1K 55,045 −3% of holding
Green Paula SVP of Human Resources Sell 1,465 $46.71 $68.4K 125,336 −1.2% of holding
Cho Dennis See Remarks Sell 844 $46.71 $39.4K 138,682 −0.6% of holding
Finn Patrick John 4 fills President and COO Sell 10b5-1 68,967 $51.65 $3.6M 334,897 −17.1% of holding
Green Paula SVP of Human Resources Sell 39,404 $52.40 $2.1M 126,041 −23.8% of holding
CHESS ROBERT Director Sell 2,184 $48.26 $105.4K 21,084 −9.4% of holding
Finn Patrick John President and COO Sell 1,750 $50.04 $87.6K 306,250 −0.6% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 7,000 $50.00 $350.0K 130,031 −5.1% of holding
Finn Patrick John President and COO Sell 3,500 $50.23 $175.8K 306,788 −1.1% of holding
Cho Dennis See Remarks Sell 10b5-1 5,000 $49.93 $249.7K 138,581 −3.5% of holding
JOHANNESSEN JAN Director Sell 2,200 $47.91 $105.4K 17,754 −11% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 7,000 $45.65 $319.5K 58,738 −10.6% of holding
Leproust Emily M. Chief Executive Officer Sell 5,001 $46.58 $232.9K 869,312 −0.6% of holding
Finn Patrick John President and COO Sell 2,705 $46.58 $126.0K 307,788 −0.9% of holding
Green Paula SVP of Human Resources Sell 1,194 $46.58 $55.6K 165,445 −0.7% of holding
Cho Dennis See Remarks Sell 1,099 $46.58 $51.2K 143,581 −0.8% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 175 $46.58 $8.2K 65,738 −0.3% of holding
Finn Patrick John President and COO Sell 2,390 $44.91 $107.3K 310,493 −0.8% of holding
Finn Patrick John President and COO Sell 10b5-1 23,279 $40.00 $931.2K 312,883 −6.9% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 3,000 $40.00 $120.0K 137,031 −2.1% of holding
Laponis Adam Chief Financial Officer Sell 2,738 $35.26 $96.5K 140,031 −1.9% of holding
Leproust Emily M. Chief Executive Officer Sell 1,605 $34.56 $55.5K 874,313 −0.2% of holding
Cho Dennis See Remarks Sell 324 $34.56 $11.2K 144,680 −0.2% of holding
Green Paula SVP of Human Resources Sell 273 $34.56 $9.4K 166,639 −0.2% of holding
Leproust Emily M. Chief Executive Officer Sell 2,255 $32.88 $74.1K 875,918 −0.3% of holding
Green Paula SVP of Human Resources Sell 877 $32.88 $28.8K 166,912 −0.5% of holding
Cho Dennis See Remarks Sell 398 $32.88 $13.1K 145,004 −0.3% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 230 $32.88 $7.6K 65,913 −0.3% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 822 $28.71 $23.6K 66,143 −1.2% of holding
Leproust Emily M. Chief Executive Officer Sell 2,663 $26.50 $70.6K 878,173 −0.3% of holding
Finn Patrick John President and COO Sell 1,776 $26.50 $47.1K 332,883 −0.5% of holding
Laponis Adam Chief Financial Officer Sell 887 $26.50 $23.5K 142,769 −0.6% of holding
Cho Dennis See Remarks Sell 757 $26.50 $20.1K 145,402 −0.5% of holding
Green Paula SVP of Human Resources Sell 598 $26.50 $15.8K 167,789 −0.4% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 229 $26.50 $6.1K 66,965 −0.3% of holding
JOHANNESSEN JAN Director Sell 7,044 $24.77 $174.5K 14,859 −32.2% of holding
Leproust Emily M. Chief Executive Officer Sell 4,887 $32.08 $156.8K 733,922 −0.7% of holding
Finn Patrick John President and COO Sell 2,755 $32.08 $88.4K 265,919 −1% of holding
Green Paula SVP of Human Resources Sell 1,084 $32.08 $34.8K 142,187 −0.8% of holding
Cho Dennis See Remarks Sell 1,019 $32.08 $32.7K 120,694 −0.8% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 160 $32.08 $5.1K 50,870 −0.3% of holding
Leproust Emily M. Chief Executive Officer Sell 31,379 $31.44 $986.7K 738,809 −4.1% of holding
Finn Patrick John President and COO Sell 17,606 $31.44 $553.6K 268,674 −6.1% of holding
Green Paula SVP of Human Resources Sell 6,920 $31.44 $217.6K 143,271 −4.6% of holding
Cho Dennis See Remarks Sell 6,515 $31.44 $204.9K 121,713 −5.1% of holding
Laponis Adam Chief Financial Officer Sell 5,517 $31.44 $173.5K 111,008 −4.7% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 1,016 $31.44 $31.9K 51,030 −2% of holding
Finn Patrick John President and COO Sell 2,240 $30.88 $69.2K 206,495 −1.1% of holding
Laponis Adam Chief Financial Officer Sell 2,517 $32.92 $82.9K 91,525 −2.7% of holding
Laponis Adam Chief Financial Officer Sell 10b5-1 3,000 $31.15 $93.5K 94,042 −3.1% of holding
Leproust Emily M. Chief Executive Officer Sell 31,348 $32.19 $1.0M 601,212 −5% of holding
Finn Patrick John President and COO Sell 23,747 $32.19 $764.3K 208,735 −10.2% of holding
Green Paula SVP of Human Resources Sell 9,724 $32.19 $313.0K 114,678 −7.8% of holding
Laponis Adam Chief Financial Officer Sell 5,875 $32.19 $189.1K 97,042 −5.7% of holding
Cho Dennis See Remarks Sell 3,876 $32.19 $124.8K 98,710 −3.8% of holding
WERNER ROBERT F. Chief Accounting Officer Sell 2,041 $32.19 $65.7K 46,413 −4.2% of holding
Leproust Emily M. Chief Executive Officer Sell 476 $29.16 $13.9K 632,560 −0.1% of holding
Finn Patrick John President and COO Sell 206 $29.16 $6.0K 232,482 −0.1% of holding
Green Paula SVP of Human Resources Sell 140 $29.16 $4.1K 124,402 −0.1% of holding
Cho Dennis See Remarks Sell 124 $29.16 $3.6K 102,586 −0.1% of holding
Leproust Emily M. Chief Executive Officer Sell 1,704 $27.56 $47.0K 633,036 −0.3% of holding
Green Paula SVP of Human Resources Sell 295 $27.56 $8.1K 124,542 −0.2% of holding
Cho Dennis See Remarks Sell 233 $27.56 $6.4K 102,710 −0.2% of holding
Cho Dennis See Remarks Sell 94 $25.33 $2.4K 102,943 −0.1% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.