# Twist Bioscience Corp (TWST) insider trading, Q3 2026 Canonical: https://sec-api.dev/insider-trading/twst > 68 non-derivative transactions: 0 purchases, 62 sales ($99.8M). CIK 1581280. | Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing | | --- | --- | --- | --- | --- | --- | --- | --- | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 16.0 | 182.5 | 614283.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 501.0 | 183.76 | 613782.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 21.0 | 181.45 | 614299.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 515.0 | 180.39 | 614320.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 143.0 | 179.93 | 614835.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 330.0 | 178.67 | 614978.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 164.0 | 177.17 | 615308.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 945.0 | 176.39 | 615472.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 2485.0 | 175.23 | 616417.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-24 | Leproust Emily M. | Director, Officer | S | 83.0 | 184.6 | 613699.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011980/0001214659-26-011980-index.htm | | 2026-09-21 | Leproust Emily M. | Director, Officer | S | 1687.0 | 165.49 | 618902.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011914/0001214659-26-011914-index.htm | | 2026-09-21 | Green Paula | Officer | S | 294.0 | 165.49 | 116720.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011916/0001214659-26-011916-index.htm | | 2026-09-21 | Cho Dennis | Officer | S | 348.0 | 165.49 | 73303.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011917/0001214659-26-011917-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 4175.0 | 154.17 | 960477.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 2565.0 | 162.31 | 621458.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 11169.0 | 161.49 | 624023.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | M | 133269.0 | 26.66 | 901696.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | M | 75439.0 | 8.82 | 977135.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 2440.0 | 151.46 | 974695.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 6644.0 | 152.21 | 968051.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 3399.0 | 153.4 | 964652.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 869.0 | 163.39 | 620589.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 13378.0 | 155.46 | 947099.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 9097.0 | 156.47 | 938002.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 32260.0 | 157.49 | 905742.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 232173.0 | 158.09 | 673569.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 23884.0 | 159.53 | 649685.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-17 | Leproust Emily M. | Director, Officer | S | 14493.0 | 160.44 | 635192.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011832/0001214659-26-011832-index.htm | | 2026-09-08 | WERNER ROBERT F. | Officer | S | 238.0 | 122.62 | 44399.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011555/0001214659-26-011555-index.htm | | 2026-09-08 | Leproust Emily M. | Director, Officer | S | 2302.0 | 122.62 | 768427.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011556/0001214659-26-011556-index.htm | | 2026-09-08 | Green Paula | Officer | S | 907.0 | 122.62 | 117014.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011557/0001214659-26-011557-index.htm | | 2026-09-08 | Cho Dennis | Officer | S | 412.0 | 122.62 | 73651.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926011558/0001214659-26-011558-index.htm | | 2026-08-25 | Leproust Emily M. | Director, Officer | S | 9181.0 | 153.93 | 771822.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010968/0001214659-26-010968-index.htm | | 2026-08-25 | Leproust Emily M. | Director, Officer | S | 6412.0 | 152.75 | 781003.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010968/0001214659-26-010968-index.htm | | 2026-08-25 | Leproust Emily M. | Director, Officer | S | 12236.0 | 151.36 | 787415.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010968/0001214659-26-010968-index.htm | | 2026-08-25 | Leproust Emily M. | Director, Officer | S | 12648.0 | 150.56 | 799651.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010968/0001214659-26-010968-index.htm | | 2026-08-25 | Leproust Emily M. | Director, Officer | S | 1093.0 | 154.45 | 770729.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010968/0001214659-26-010968-index.htm | | 2026-08-24 | WERNER ROBERT F. | Officer | S | 854.0 | 140.77 | 44637.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010827/0001214659-26-010827-index.htm | | 2026-08-21 | WERNER ROBERT F. | Officer | S | 669.0 | 139.07 | 45491.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010827/0001214659-26-010827-index.htm | | 2026-08-21 | Leproust Emily M. | Director, Officer | S | 6639.0 | 139.07 | 812299.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010828/0001214659-26-010828-index.htm | | 2026-08-21 | Laponis Adam | Officer | S | 1965.0 | 139.07 | 108633.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010829/0001214659-26-010829-index.htm | | 2026-08-21 | Green Paula | Officer | S | 1360.0 | 139.07 | 117921.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010830/0001214659-26-010830-index.htm | | 2026-08-21 | Finn Patrick John | Officer | S | 4046.0 | 139.07 | 210802.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010831/0001214659-26-010831-index.htm | | 2026-08-21 | Cho Dennis | Officer | S | 1598.0 | 139.07 | 74063.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010832/0001214659-26-010832-index.htm | | 2026-08-19 | Cho Dennis | Officer | S | 14205.0 | 129.75 | 75661.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010723/0001214659-26-010723-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 2000.0 | 122.58 | 214678.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 6296.0 | 121.01 | 216678.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 12917.0 | 119.86 | 222974.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 4500.0 | 119.04 | 235891.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 8868.0 | 117.7 | 240391.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 10420.0 | 116.82 | 249259.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | M | 23355.0 | 67.85 | 293033.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-18 | Finn Patrick John | Officer | S | 33354.0 | 115.9 | 259679.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010645/0001214659-26-010645-index.htm | | 2026-08-12 | Leproust Emily M. | Director, Officer | M | 19952.0 | 26.66 | 838890.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010403/0001214659-26-010403-index.htm | | 2026-08-12 | Leproust Emily M. | Director, Officer | S | 19952.0 | 125.08 | 818938.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010403/0001214659-26-010403-index.htm | | 2026-08-12 | BLAKE KATRYN | Director | S | 2240.0 | 122.88 | 17208.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926010414/0001214659-26-010414-index.htm | | 2026-08-10 | Leproust Emily M. | Director, Officer | S | 113318.0 | 125.16 | 818938.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009994/0001214659-26-009994-index.htm | | 2026-08-10 | Leproust Emily M. | Director, Officer | M | 113318.0 | 26.66 | 932256.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009994/0001214659-26-009994-index.htm | | 2026-08-07 | CHESS ROBERT | Director | M | 18417.0 | 11.89 | 39501.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009894/0001214659-26-009894-index.htm | | 2026-08-07 | CHESS ROBERT | Director | S | 18417.0 | 110.89 | 21084.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009894/0001214659-26-009894-index.htm | | 2026-08-05 | Cho Dennis | Officer | S | 14205.0 | 109.75 | 89866.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009768/0001214659-26-009768-index.htm | | 2026-08-03 | Cho Dennis | Officer | S | 1070.0 | 85.32 | 104071.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009653/0001214659-26-009653-index.htm | | 2026-08-03 | WERNER ROBERT F. | Officer | S | 167.0 | 85.32 | 46160.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009654/0001214659-26-009654-index.htm | | 2026-08-03 | Leproust Emily M. | Director, Officer | S | 5101.0 | 85.32 | 818938.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009655/0001214659-26-009655-index.htm | | 2026-08-03 | Green Paula | Officer | S | 1133.0 | 85.32 | 119281.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009656/0001214659-26-009656-index.htm | | 2026-08-03 | Finn Patrick John | Officer | S | 2888.0 | 85.32 | 269678.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009657/0001214659-26-009657-index.htm | | 2026-07-23 | Finn Patrick John | Officer | S | 2238.0 | 93.89 | 272566.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926009065/0001214659-26-009065-index.htm | | 2026-07-09 | Laponis Adam | Officer | S | 2399.0 | 94.33 | 110276.0 | https://www.sec.gov/Archives/edgar/data/1581280/000121465926008480/0001214659-26-008480-index.htm | Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets --- Independent. 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