TWST insider transaction filings
Twist Bioscience Corp — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-21. Screen TWST transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-21 | 4 | Cho Dennis — See Remarks | Sale (S): 14,205 @ $129.75 | EDGAR |
| 2026-08-20 | 4 | Finn Patrick John — President and COO | Option exercise (M): 23,355 @ $67.85 · Sale (S): 33,354 @ $115.90 · Sale (S): 10,420 @ $116.82 · Sale (S): 8,868 @ $117.70 · Sale (S): 4,500 @ $119.04 · Sale (S): 12,917 @ $119.86 · +3 more | EDGAR |
| 2026-08-14 | 4 | BLAKE KATRYN — Director | Sale (S): 2,240 @ $122.88 | EDGAR |
| 2026-08-14 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Option exercise (M): 19,952 @ $26.66 · Sale (S): 19,952 @ $125.08 · Option exercise (M): 19,952 (derivative) @ $0 | EDGAR |
| 2026-08-12 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Option exercise (M): 113,318 @ $26.66 · Sale (S): 113,318 @ $125.16 · Option exercise (M): 113,318 (derivative) @ $0 | EDGAR |
| 2026-08-11 | 4 | CHESS ROBERT — Director | Option exercise (M): 18,417 @ $11.89 · Sale (S): 18,417 @ $110.89 · Option exercise (M): 18,417 (derivative) @ $0 | EDGAR |
| 2026-08-07 | 4 | Cho Dennis — See Remarks | Sale (S): 14,205 @ $109.75 | EDGAR |
| 2026-08-05 | 4 | Cho Dennis — See Remarks | Sale (S): 1,070 @ $85.32 | EDGAR |
| 2026-08-05 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 167 @ $85.32 | EDGAR |
| 2026-08-05 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 5,101 @ $85.32 | EDGAR |
| 2026-08-05 | 4 | Green Paula — SVP of Human Resources | Sale (S): 1,133 @ $85.32 | EDGAR |
| 2026-08-05 | 4 | Finn Patrick John — President and COO | Sale (S): 2,888 @ $85.32 | EDGAR |
| 2026-07-27 | 4 | Finn Patrick John — President and COO | Sale (S): 2,238 @ $93.89 | EDGAR |
| 2026-07-13 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 2,399 @ $94.33 | EDGAR |
| 2026-06-26 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 18,880 @ $95 | EDGAR |
| 2026-06-26 | 4 | Cho Dennis — See Remarks | Sale (S): 14,205 @ $89.75 | EDGAR |
| 2026-06-24 | 4 | Green Paula — SVP of Human Resources | Sale (S): 291 @ $87.32 | EDGAR |
| 2026-06-24 | 4 | Cho Dennis — See Remarks | Sale (S): 346 @ $87.32 | EDGAR |
| 2026-06-24 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 1,688 @ $87.32 | EDGAR |
| 2026-06-17 | 4 | Green Paula — SVP of Human Resources | Option exercise (M): 26,137 @ $23.33 · Sale (S): 24,109 @ $81.62 · Sale (S): 2,028 @ $82.17 · Option exercise (M): 26,137 (derivative) @ $0 | EDGAR |
| 2026-06-10 | 4 | Cho Dennis — See Remarks | Sale (S): 402 @ $69.84 | EDGAR |
| 2026-06-10 | 4 | Green Paula — SVP of Human Resources | Sale (S): 884 @ $69.84 | EDGAR |
| 2026-06-10 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 2,265 @ $69.84 | EDGAR |
| 2026-06-10 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 232 @ $69.84 · Sale (S): 1,127 @ $69.07 · Gift (G): 500 @ $0 | EDGAR |
| 2026-06-02 | 4 | Cho Dennis — See Remarks | Sale (S): 14,205 @ $69.75 | EDGAR |
| 2026-06-02 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 4,000 @ $70 | EDGAR |
| 2026-06-01 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Option exercise (M): 16,470 @ $8.82 · Sale (S): 1,482 @ $65.33 · Sale (S): 900 @ $66.85 · Sale (S): 7,623 @ $67.95 · Sale (S): 6,465 @ $68.61 · Option exercise (M): 16,470 (derivative) @ $0 | EDGAR |
| 2026-06-01 | 4 | Starovasnik Melissa A. — Director | Sale (S): 2,500 @ $68 | EDGAR |
| 2026-05-28 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Option exercise (M): 24,282 @ $8.82 · Sale (S): 24,282 @ $65.08 · Option exercise (M): 25,017 @ $8.82 · Sale (S): 23,752 @ $65.24 · Sale (S): 1,265 @ $66.28 · Option exercise (M): 24,282 (derivative) @ $0 · +1 more | EDGAR |
| 2026-05-28 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 800 @ $62.48 | EDGAR |
| 2026-05-28 | 4 | Starovasnik Melissa A. — Director | Sale (S): 500 @ $61.04 | EDGAR |
| 2026-05-26 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 688 @ $53.26 | EDGAR |
| 2026-05-26 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 6,888 @ $53.26 | EDGAR |
| 2026-05-26 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 2,019 @ $53.26 | EDGAR |
| 2026-05-26 | 4 | Green Paula — SVP of Human Resources | Sale (S): 1,399 @ $53.26 | EDGAR |
| 2026-05-26 | 4 | Finn Patrick John — President and COO | Sale (S): 4,160 @ $53.26 | EDGAR |
| 2026-05-26 | 4 | Cho Dennis — See Remarks | Sale (S): 1,642 @ $53.26 | EDGAR |
| 2026-05-14 | 4 | JOHANNESSEN JAN — Director | Option exercise (M): 12,000 @ $14 · Sale (S): 12,000 @ $56.12 · Option exercise (M): 12,000 (derivative) @ $0 | EDGAR |
| 2026-05-12 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 4,961 @ $56.88 | EDGAR |
| 2026-05-06 | 4 | Cho Dennis — See Remarks | Sale (S): 1,962 @ $57.15 | EDGAR |
| 2026-05-06 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Sale (S): 5,127 @ $57.15 | EDGAR |
| 2026-05-06 | 4 | Finn Patrick John — President and COO | Sale (S): 2,844 @ $57.15 | EDGAR |
| 2026-05-06 | 4 | Green Paula — SVP of Human Resources | Sale (S): 1,116 @ $57.15 | EDGAR |
| 2026-05-06 | 4 | WERNER ROBERT F. — Chief Accounting Officer | Sale (S): 164 @ $57.15 | EDGAR |
| 2026-04-29 | 4 | Starovasnik Melissa A. — Director | Sale (S): 500 @ $61.83 | EDGAR |
| 2026-04-27 | 4 | Finn Patrick John — President and COO | Sale (S): 2,321 @ $60.76 | EDGAR |
| 2026-04-23 | 4 | Leproust Emily M. — Chief Executive Officer, Director | Option exercise (M): 1,610 @ $8.82 · Sale (S): 1,610 @ $65.01 · Option exercise (M): 8,061 @ $8.82 · Sale (S): 7,910 @ $65.28 · Sale (S): 151 @ $66 · Option exercise (M): 1,610 (derivative) @ $0 · +1 more | EDGAR |
| 2026-04-21 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 4,000 @ $60 | EDGAR |
| 2026-04-16 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 3,000 @ $55 | EDGAR |
| 2026-04-13 | 4 | Laponis Adam — Chief Financial Officer | Sale (S): 2,597 @ $49.89 | EDGAR |
Recent 8-K events — Twist Bioscience Corp
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-19 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-19 | 8-K | 7.01 — Regulation FD Disclosure | EDGAR |
| 2026-08-05 | 8-K | 1.01 — Entry into a Material Definitive Agreement 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-03 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-04 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-17 | 8-K | 3.02 — Unregistered Sales of Equity Securities 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-06 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-02-02 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-14 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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