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 Bearish Selling ran elevated versus TWST's own trailing one-year pace, with 83% 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
86 transactions
Purchases
$0
0 shares
Sales
$58.2M
572,931 shares
Net activity
-$58.2M
purchases less sales

How much of that selling was preplanned? 83% planned / 17% discretionary

10b5-1 plan sales $48.1M 38 transactions · 448,252 shares
Discretionary sales $10.0M 48 transactions · 124,679 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

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.