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TWST · Twist Bioscience Corp

Healthcare · −8.1% on Oct 16

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Updated Oct 17 · 6 feeds behind: Insider filings, 2 days, and 5 more · Every feed →

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The market view

Price chart

The interactive TWST chart (by TradingView) loads here.

Our take

None of our tested rules has picked TWST yet.

The 0–100 score for TWST
Members see one number for how strongly these rules agree on TWST, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of TWST. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded

Insider sales

Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual.

Latest 28 days
6
Earlier median
6
Earlier range
1–7
Distinct filers per 28 daysScale: 0–7
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 6Limited or missing history

Who appears in the latest period?

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jun 10, 2026. Newest disclosure across this feed: Oct 16, 2026.

Earlier periods in the comparison: 3. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20260Partial; excluded
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 6; range: 1–7.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20264Partial; excluded
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20267Within stored history
Aug 24, 2026–Sep 20, 20266Within stored history
Sep 21, 2026–Oct 18, 2026Latest period6Within stored history
Congress purchases · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 2026—Unavailable
Jun 29, 2026–Jul 26, 2026—Unavailable
Jul 27, 2026–Aug 23, 2026—Unavailable
Aug 24, 2026–Sep 20, 2026—Unavailable
Sep 21, 2026–Oct 18, 2026Latest period—Unavailable
Congress sales · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 2026—Unavailable
Jun 29, 2026–Jul 26, 2026—Unavailable
Jul 27, 2026–Aug 23, 2026—Unavailable
Aug 24, 2026–Sep 20, 2026—Unavailable
Sep 21, 2026–Oct 18, 2026Latest period—Unavailable
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Owners & lobbying

Insiders · Oct 2026

  1. Disclosed
    Adam Laponis · Sale

    Transaction dated Oct 9, 2026

  2. Filed
  3. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  4. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  5. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  6. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  7. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  8. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  9. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  10. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  11. Disclosed
    Adam Laponis · Sale

    Transaction dated Oct 2, 2026

  12. Disclosed
    Dennis Cho · Sale

    Transaction dated Oct 2, 2026

  13. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 2, 2026

  14. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 1, 2026

  15. Filed
  16. Disclosed
    Patrick John Finn · Sale

    Transaction dated Oct 2, 2026

  17. Disclosed
    Paula Green · Sale

    Transaction dated Oct 2, 2026

  18. Disclosed
    Robert F. Werner · Sale

    Transaction dated Oct 2, 2026

  19. Filed
  20. Filed
  21. Filed

4 more on file are not listed here. See that month’s insider trades →

All 37 records in this snapshot
  1. Disclosed
    Adam Laponis · Sale

    Transaction dated Oct 9, 2026

  2. Filed
  3. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  4. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  5. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  6. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  7. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  8. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  9. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  10. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 5, 2026

  11. Disclosed
    Adam Laponis · Sale

    Transaction dated Oct 2, 2026

  12. Disclosed
    Dennis Cho · Sale

    Transaction dated Oct 2, 2026

  13. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 2, 2026

  14. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Oct 1, 2026

  15. Filed
  16. Disclosed
    Patrick John Finn · Sale

    Transaction dated Oct 2, 2026

  17. Disclosed
    Paula Green · Sale

    Transaction dated Oct 2, 2026

  18. Disclosed
    Robert F. Werner · Sale

    Transaction dated Oct 2, 2026

  19. Filed
  20. Filed
  21. Filed
  22. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  23. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  24. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  25. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  26. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  27. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  28. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  29. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  30. Disclosed
    Emily M. Leproust · Sale

    Transaction dated Sep 24, 2026

  31. Filed
  32. Filed
  33. Filed
  34. Filed
  35. Filed
  36. Filed
  37. Filed

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No Congress trades on TWST disclosed in the last 90 days.

See every Congress trade on TWST →

Company insiders

0 buys · 37 sells (77 filed lots) · $120M sold

  1. ▼ SELLAdam Laponis Chief Financial OfficerTWST Twist Bioscience Corp$385Kdisclosed Oct 13 · filed 4 days after the trade
  2. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$59.4Kdisclosed Oct 7 · filed 2 days after the trade
  3. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$88Kdisclosed Oct 7 · filed 2 days after the trade
  4. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$61.1Kdisclosed Oct 7 · filed 2 days after the trade
  5. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$30.2Kdisclosed Oct 7 · filed 2 days after the trade
  6. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$369Kdisclosed Oct 7 · filed 2 days after the trade
  7. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$206Kdisclosed Oct 7 · filed 2 days after the trade
  8. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$9.3Kdisclosed Oct 7 · filed 2 days after the trade
  9. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$96.8Kdisclosed Oct 7 · filed 2 days after the trade
  10. ▼ SELLPaula Green SVP of Human ResourcesTWST Twist Bioscience Corp$1.9Mdisclosed Oct 5 · filed 3 days after the trade
See every insider trade on TWST →

Big holders (Schedule 13D / 13G): 2 filings in the last 90 days · newest: Price T Rowe Associates Inc /Md/ (13G), Aug 14, 2026 ↗

Filings & events

Company filings (8-K) 37

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Quarterly or yearly results · item 2.0210
  • Directors or officers joined, left or got new pay · item 5.024
  • Other events · item 8.012
  • Shared information with investors · item 7.012
  • Shareholder vote results · item 5.072
  • Sold shares privately · item 3.021

Filing red flags 14

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 6

Lobbying reports filed with the Senate for the company.

$429K across 6 reports

Issues named in the most reports

  • Science/Technology 4
  • Copyright/Patent/Trademark 4
  • Intelligence 4
  • Trade (domestic/foreign) 2
  • Tariff (miscellaneous tariff bills) 2

Planned insider sales (Form 144) 335

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

40 in the last 90 days · 335 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 7

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 0 filings
  • 13G, just holds: 7 filings

Filed most: State Street Corp (2) · Price T Rowe Associates Inc /Md/ (1) · Fmr LLC (1) · Vanguard Capital Management LLC (1)

Biggest named funds (13F)

The largest TWST holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on TWST

  1. ▼ SELLAdam Laponis Chief Financial OfficerTWST Twist Bioscience Corp$385Kdisclosed Oct 13 · filed 4 days after the trade
  2. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$59.4Kdisclosed Oct 7 · filed 2 days after the trade
  3. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$88Kdisclosed Oct 7 · filed 2 days after the trade
  4. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$61.1Kdisclosed Oct 7 · filed 2 days after the trade
  5. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$30.2Kdisclosed Oct 7 · filed 2 days after the trade
  6. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$369Kdisclosed Oct 7 · filed 2 days after the trade
  7. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$206Kdisclosed Oct 7 · filed 2 days after the trade
  8. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$9.3Kdisclosed Oct 7 · filed 2 days after the trade
  9. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$96.8Kdisclosed Oct 7 · filed 2 days after the trade
  10. ▼ SELLPaula Green SVP of Human ResourcesTWST Twist Bioscience Corp$1.9Mdisclosed Oct 5 · filed 3 days after the trade
  11. ▼ SELLAdam Laponis Chief Financial OfficerTWST Twist Bioscience Corp$1.5Mdisclosed Oct 5 · filed 3 days after the trade
  12. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$8.6Mdisclosed Oct 5 · filed 3 days after the trade
  13. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$131Kdisclosed Oct 5 · filed 4 days after the trade
  14. ▼ SELLPatrick John Finn President and COOTWST Twist Bioscience Corp$4.9Mdisclosed Oct 5 · filed 3 days after the trade
  15. ▼ SELLRobert F. Werner Chief Accounting OfficerTWST Twist Bioscience Corp$280Kdisclosed Oct 5 · filed 3 days after the trade
  16. ▼ SELLDennis Cho InsiderTWST Twist Bioscience Corp$1.8Mdisclosed Oct 5 · filed 3 days after the trade
  17. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$92.1Kdisclosed Sep 25 · filed 1 day after the trade
  18. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$167Kdisclosed Sep 25 · filed 1 day after the trade
  19. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$29.1Kdisclosed Sep 25 · filed 1 day after the trade
  20. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$25.7Kdisclosed Sep 25 · filed 1 day after the trade
  21. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$15.3Kdisclosed Sep 25 · filed 1 day after the trade
  22. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$3.8Kdisclosed Sep 25 · filed 1 day after the trade
  23. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$59Kdisclosed Sep 25 · filed 1 day after the trade
  24. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$2.9Kdisclosed Sep 25 · filed 1 day after the trade
  25. ▼ SELLEmily M. Leproust Chief Executive OfficerTWST Twist Bioscience Corp$435Kdisclosed Sep 25 · filed 1 day after the trade
See all 90 trades on TWST →
People & votes

Which members of Congress traded TWST, sponsored bills that touch it and voted on them — opens here.