Follow the people · Insider
Dennis Cho
Dennis Cho files insider transactions with the SEC as an officer of Twist Bioscience (TWST). We hold 15 disclosed purchases and sales filed since 16 September 2021, 6 of them in the last 90 days.
- Files forTWST
- Disclosed buys and sells15 in all, 6 in the last 90 days
- Last disclosure25 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 13 September 2021 — 21 August 2026Officer · Twist Bioscience (TWST)103 Form 4 lines · source: SEC Form 4
Everything they disclosed
103 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 1,598 shares of Twist BioscienceSEC Form 425 August 2026Common Stock · traded 21 August 2026 · filed 25 August 2026
- ▼ sold on the open market 14,205 shares of Twist BioscienceSEC Form 421 August 2026Common Stock · traded 19 August 2026 · filed 21 August 2026
- ▼ sold on the open market 14,205 shares of Twist BioscienceSEC Form 47 August 2026Common Stock · traded 5 August 2026 · filed 7 August 2026
- ▼ sold on the open market 1,070 shares of Twist BioscienceSEC Form 45 August 2026Common Stock · traded 3 August 2026 · filed 5 August 2026
- ▼ sold on the open market 14,205 shares of Twist BioscienceSEC Form 426 June 2026Common Stock · traded 24 June 2026 · filed 26 June 2026
- ▼ sold on the open market 346 shares of Twist BioscienceSEC Form 424 June 2026Common Stock · traded 22 June 2026 · filed 24 June 2026
- ▼ sold on the open market 402 shares of Twist BioscienceSEC Form 410 June 2026Common Stock · traded 8 June 2026 · filed 10 June 2026
- ▼ sold on the open market 14,205 shares of Twist BioscienceSEC Form 42 June 2026Common Stock · traded 29 May 2026 · filed 2 June 2026
- ▼ sold on the open market 1,642 shares of Twist BioscienceSEC Form 426 May 2026Common Stock · traded 21 May 2026 · filed 26 May 2026
- ▼ sold on the open market 1,962 shares of Twist BioscienceSEC Form 46 May 2026Common Stock · traded 4 May 2026 · filed 6 May 2026
- ▼ sold on the open market 354 shares of Twist BioscienceSEC Form 424 March 2026Common Stock · traded 20 March 2026 · filed 24 March 2026
- ▼ sold on the open market 354 shares of Twist BioscienceSEC Form 424 March 2026Common Stock · traded 20 March 2026 · filed 24 March 2026
- ▼ sold on the open market 425 shares of Twist BioscienceSEC Form 410 March 2026Common Stock · traded 6 March 2026 · filed 10 March 2026
- ▼ sold on the open market 425 shares of Twist BioscienceSEC Form 410 March 2026Common Stock · traded 6 March 2026 · filed 10 March 2026
- ▼ sold on the open market 844 shares of Twist BioscienceSEC Form 425 February 2026Common Stock · traded 23 February 2026 · filed 25 February 2026
- ▼ sold on the open market 844 shares of Twist BioscienceSEC Form 425 February 2026Common Stock · traded 23 February 2026 · filed 25 February 2026
- ▼ sold on the open market 5,000 shares of Twist BioscienceSEC Form 413 February 2026Common Stock · traded 11 February 2026 · filed 13 February 2026
- ▼ sold on the open market 5,000 shares of Twist BioscienceSEC Form 413 February 2026Common Stock · traded 11 February 2026 · filed 13 February 2026
- ▼ sold on the open market 1,099 shares of Twist BioscienceSEC Form 45 February 2026Common Stock · traded 3 February 2026 · filed 5 February 2026
- ▼ sold on the open market 1,099 shares of Twist BioscienceSEC Form 45 February 2026Common Stock · traded 3 February 2026 · filed 5 February 2026
- ▼ sold on the open market 324 shares of Twist BioscienceSEC Form 423 December 2025Common Stock · traded 22 December 2025 · filed 23 December 2025
- ▼ sold on the open market 398 shares of Twist BioscienceSEC Form 410 December 2025Common Stock · traded 8 December 2025 · filed 10 December 2025
- ▼ sold on the open market 757 shares of Twist BioscienceSEC Form 425 November 2025Common Stock · traded 21 November 2025 · filed 25 November 2025
- was granted 25,465 shares of Twist BioscienceSEC Form 420 November 2025Common Stock · traded 18 November 2025 · filed 20 November 2025
- ▼ sold on the open market 1,019 shares of Twist BioscienceSEC Form 45 November 2025Common Stock · traded 3 November 2025 · filed 5 November 2025
- ▼ sold on the open market 6,515 shares of Twist BioscienceSEC Form 43 November 2025Common Stock · traded 30 October 2025 · filed 3 November 2025
- was granted 29,518 shares of Twist BioscienceSEC Form 430 October 2025Common Stock · traded 28 October 2025 · filed 30 October 2025
- ▼ sold on the open market 3,876 shares of Twist BioscienceSEC Form 48 October 2025Common Stock · traded 6 October 2025 · filed 8 October 2025
- ▼ sold on the open market 124 shares of Twist BioscienceSEC Form 46 October 2025Common Stock · traded 2 October 2025 · filed 6 October 2025
- ▼ sold on the open market 233 shares of Twist BioscienceSEC Form 424 September 2025Common Stock · traded 22 September 2025 · filed 24 September 2025
- ▼ sold on the open market 94 shares of Twist BioscienceSEC Form 417 September 2025Common Stock · traded 15 September 2025 · filed 17 September 2025
- ▼ sold on the open market 269 shares of Twist BioscienceSEC Form 410 September 2025Common Stock · traded 8 September 2025 · filed 10 September 2025
- ▼ sold on the open market 521 shares of Twist BioscienceSEC Form 425 August 2025Common Stock · traded 21 August 2025 · filed 25 August 2025
- ▼ sold on the open market 785 shares of Twist BioscienceSEC Form 46 August 2025Common Stock · traded 4 August 2025 · filed 6 August 2025
- ▼ sold on the open market 125 shares of Twist BioscienceSEC Form 47 July 2025Common Stock · traded 2 July 2025 · filed 7 July 2025
- ▼ sold on the open market 230 shares of Twist BioscienceSEC Form 424 June 2025Common Stock · traded 20 June 2025 · filed 24 June 2025
- ▼ sold on the open market 94 shares of Twist BioscienceSEC Form 418 June 2025Common Stock · traded 16 June 2025 · filed 18 June 2025
- ▼ sold on the open market 257 shares of Twist BioscienceSEC Form 410 June 2025Common Stock · traded 6 June 2025 · filed 10 June 2025
- ▼ sold on the open market 531 shares of Twist BioscienceSEC Form 423 May 2025Common Stock · traded 21 May 2025 · filed 23 May 2025
- ▼ sold on the open market 5,000 shares of Twist BioscienceSEC Form 49 May 2025Common Stock · traded 7 May 2025 · filed 9 May 2025
- ▼ sold on the open market 689 shares of Twist BioscienceSEC Form 47 May 2025Common Stock · traded 5 May 2025 · filed 7 May 2025
- ▼ sold on the open market 124 shares of Twist BioscienceSEC Form 44 April 2025Common Stock · traded 2 April 2025 · filed 4 April 2025
- ▼ sold on the open market 230 shares of Twist BioscienceSEC Form 424 March 2025Common Stock · traded 20 March 2025 · filed 24 March 2025
- ▼ sold on the open market 92 shares of Twist BioscienceSEC Form 418 March 2025Common Stock · traded 14 March 2025 · filed 18 March 2025
- ▼ sold on the open market 277 shares of Twist BioscienceSEC Form 410 March 2025Common Stock · traded 6 March 2025 · filed 10 March 2025
- ▼ sold on the open market 526 shares of Twist BioscienceSEC Form 425 February 2025Common Stock · traded 21 February 2025 · filed 25 February 2025
- ▼ sold on the open market 806 shares of Twist BioscienceSEC Form 45 February 2025Common Stock · traded 3 February 2025 · filed 5 February 2025
- ▼ sold on the open market 144 shares of Twist BioscienceSEC Form 47 January 2025Common Stock · traded 3 January 2025 · filed 7 January 2025
- ▼ sold on the open market 316 shares of Twist BioscienceSEC Form 426 December 2024Common Stock · traded 20 December 2024 · filed 26 December 2024
- ▼ sold on the open market 133 shares of Twist BioscienceSEC Form 418 December 2024Common Stock · traded 16 December 2024 · filed 18 December 2024
- ▼ sold on the open market 367 shares of Twist BioscienceSEC Form 410 December 2024Common Stock · traded 6 December 2024 · filed 10 December 2024
- was granted 22,824 shares of Twist BioscienceSEC Form 46 December 2024Common Stock · traded 4 December 2024 · filed 6 December 2024
- ▼ sold on the open market 1,811 shares of Twist BioscienceSEC Form 415 November 2024Common Stock · traded 6 November 2024 · filed 15 November 2024
- ▼ sold on the open market 1,507 shares of Twist BioscienceSEC Form 413 November 2024Common Stock · traded 11 November 2024 · filed 13 November 2024
- ▼ sold on the open market 1,811 shares of Twist BioscienceSEC Form 48 November 2024Common Stock · traded 6 November 2024 · filed 8 November 2024
- was granted 12,000 shares of Twist BioscienceSEC Form 46 November 2024Common Stock · traded 4 November 2024 · filed 6 November 2024
- was granted 7,851 shares of Twist BioscienceSEC Form 46 November 2024Common Stock · traded 4 November 2024 · filed 6 November 2024
- ▼ sold on the open market 659 shares of Twist BioscienceSEC Form 46 November 2024Common Stock · traded 4 November 2024 · filed 6 November 2024
- ▼ sold on the open market 3,104 shares of Twist BioscienceSEC Form 44 October 2024Common Stock · traded 2 October 2024 · filed 4 October 2024
- ▼ sold on the open market 234 shares of Twist BioscienceSEC Form 424 September 2024Common Stock · traded 20 September 2024 · filed 24 September 2024
- ▼ sold on the open market 94 shares of Twist BioscienceSEC Form 418 September 2024Common Stock · traded 16 September 2024 · filed 18 September 2024
- ▼ sold on the open market 275 shares of Twist BioscienceSEC Form 410 September 2024Common Stock · traded 6 September 2024 · filed 10 September 2024
- ▼ sold on the open market 709 shares of Twist BioscienceSEC Form 47 August 2024Common Stock · traded 5 August 2024 · filed 7 August 2024
- ▼ sold on the open market 126 shares of Twist BioscienceSEC Form 45 July 2024Common Stock · traded 2 July 2024 · filed 5 July 2024
- ▼ sold on the open market 234 shares of Twist BioscienceSEC Form 424 June 2024Common Stock · traded 20 June 2024 · filed 24 June 2024
- ▼ sold on the open market 95 shares of Twist BioscienceSEC Form 418 June 2024Common Stock · traded 14 June 2024 · filed 18 June 2024
- ▼ sold on the open market 276 shares of Twist BioscienceSEC Form 410 June 2024Common Stock · traded 6 June 2024 · filed 10 June 2024
- ▼ sold on the open market 568 shares of Twist BioscienceSEC Form 47 May 2024Common Stock · traded 3 May 2024 · filed 7 May 2024
- ▼ sold on the open market 129 shares of Twist BioscienceSEC Form 44 April 2024Common Stock · traded 2 April 2024 · filed 4 April 2024
- ▼ sold on the open market 230 shares of Twist BioscienceSEC Form 422 March 2024Common Stock · traded 20 March 2024 · filed 22 March 2024
- ▼ sold on the open market 93 shares of Twist BioscienceSEC Form 418 March 2024Common Stock · traded 14 March 2024 · filed 18 March 2024
- ▼ sold on the open market 272 shares of Twist BioscienceSEC Form 48 March 2024Common Stock · traded 6 March 2024 · filed 8 March 2024
- had shares withheld for tax on 756 shares of Twist BioscienceSEC Form 46 February 2024Common Stock · traded 2 February 2024 · filed 6 February 2024
- had shares withheld for tax on 140 shares of Twist BioscienceSEC Form 44 January 2024Common Stock · traded 2 January 2024 · filed 4 January 2024
- had shares withheld for tax on 221 shares of Twist BioscienceSEC Form 421 December 2023Common Stock · traded 19 December 2023 · filed 21 December 2023
- had shares withheld for tax on 89 shares of Twist BioscienceSEC Form 415 December 2023Common Stock · traded 13 December 2023 · filed 15 December 2023
- had shares withheld for tax on 260 shares of Twist BioscienceSEC Form 47 December 2023Common Stock · traded 5 December 2023 · filed 7 December 2023
- was granted 13,859 shares of Twist BioscienceSEC Form 46 November 2023Common Stock · traded 2 November 2023 · filed 6 November 2023
- had shares withheld for tax on 1,918 shares of Twist BioscienceSEC Form 46 November 2023Common Stock · traded 2 November 2023 · filed 6 November 2023
- was granted 29,518 shares of Twist BioscienceSEC Form 46 November 2023Common Stock · traded 2 November 2023 · filed 6 November 2023
- had shares withheld for tax on 118 shares of Twist BioscienceSEC Form 43 October 2023Common Stock · traded 29 September 2023 · filed 3 October 2023
- had shares withheld for tax on 221 shares of Twist BioscienceSEC Form 421 September 2023Common Stock · traded 19 September 2023 · filed 21 September 2023
- had shares withheld for tax on 89 shares of Twist BioscienceSEC Form 415 September 2023Common Stock · traded 13 September 2023 · filed 15 September 2023
- was granted 12,000 shares of Twist BioscienceSEC Form 47 September 2023Common Stock · traded 5 September 2023 · filed 7 September 2023
- had shares withheld for tax on 118 shares of Twist BioscienceSEC Form 45 July 2023Common Stock · traded 30 June 2023 · filed 5 July 2023
- had shares withheld for tax on 220 shares of Twist BioscienceSEC Form 421 June 2023Common Stock · traded 16 June 2023 · filed 21 June 2023
- had shares withheld for tax on 87 shares of Twist BioscienceSEC Form 415 June 2023Common Stock · traded 13 June 2023 · filed 15 June 2023
- ▲ bought on the open market 10,000 shares of Twist BioscienceSEC Form 412 May 2023Common Stock · traded 10 May 2023 · filed 12 May 2023
- had shares withheld for tax on 136 shares of Twist BioscienceSEC Form 44 April 2023Common Stock · traded 31 March 2023 · filed 4 April 2023
- had shares withheld for tax on 255 shares of Twist BioscienceSEC Form 421 March 2023Common Stock · traded 17 March 2023 · filed 21 March 2023
- had shares withheld for tax on 103 shares of Twist BioscienceSEC Form 415 March 2023Common Stock · traded 13 March 2023 · filed 15 March 2023
- had shares withheld for tax on 103 shares of Twist BioscienceSEC Form 415 March 2023Common Stock · traded 13 March 2023 · filed 15 March 2023
- had shares withheld for tax on 136 shares of Twist BioscienceSEC Form 45 January 2023Common Stock · traded 3 January 2023 · filed 5 January 2023
- was granted 10,210 shares of Twist BioscienceSEC Form 421 December 2022Common Stock · traded 19 December 2022 · filed 21 December 2022
- had shares withheld for tax on 89 shares of Twist BioscienceSEC Form 415 December 2022Common Stock · traded 13 December 2022 · filed 15 December 2022
- had shares withheld for tax on 118 shares of Twist BioscienceSEC Form 44 October 2022Common Stock · traded 30 September 2022 · filed 4 October 2022
- had shares withheld for tax on 355 shares of Twist BioscienceSEC Form 415 September 2022Common Stock · traded 13 September 2022 · filed 15 September 2022
- had shares withheld for tax on 118 shares of Twist BioscienceSEC Form 46 July 2022Common Stock · traded 1 July 2022 · filed 6 July 2022
- had shares withheld for tax on 136 shares of Twist BioscienceSEC Form 45 April 2022Common Stock · traded 1 April 2022 · filed 5 April 2022
- had shares withheld for tax on 136 shares of Twist BioscienceSEC Form 431 January 2022Common Stock · traded 27 January 2022 · filed 31 January 2022
- was granted 5,460 shares of Twist BioscienceSEC Form 429 December 2021Common Stock · traded 27 December 2021 · filed 29 December 2021
- was granted 8,194 shares of Twist Bioscience (a derivative holding)SEC Form 416 September 2021Employee Stock Option (right to buy) · traded 13 September 2021 · filed 16 September 2021
- was granted 4,097 shares of Twist BioscienceSEC Form 416 September 2021Common Stock · traded 13 September 2021 · filed 16 September 2021
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.