Transaction · 0001214659-26-011832

Leproust Emily M.

Leproust Emily M., CEO, reported an open-market or private sale at Twist Bioscience Corp involving 3399.000000 shares for an estimated $521417.14. Reported holdings after the transaction were 964652.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCEO
TWSTTwist Bioscience Corp
Trade date
Sep 17, 2026
Filing date
Sep 21, 2026
View on SEC Insider profile
Estimated value-$521kShares × reported price
Shares traded3.39k$153.40 per share
Holdings after964kDirect
% of reported position traded0.35%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 968,051 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

TWST price since this filing

Daily closing prices, with the filing date and available return windows
TWST · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -30.0%1w ago -23.5%1d ago -13.7%
Returns since7d +8.3%30d -14.0%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001214659-26-011832
Common Stock
Transaction date
Sep 17, 2026
Filed Sep 21, 2026, 08:05 PM · 4d delay
Shares
3,399 sh
$153.40 per share
Estimated value
-$521k
Computed from shares × price
Holdings after
964,652 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Large Sale Repeat Seller 10b5-1 Detected
Filing-only score

-4 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 15, 2026.

  2. F2

    Represents the weighted average sales price per share. The shares sold at prices ranging from $150.77 to 151.77 per share. Full information regarding the number of shares sold at each price shall be p…

  3. F3

    Represents the weighted average sales price per share. The shares sold at prices ranging from $151.78 to $152.71 per share. Full information regarding the number of shares sold at each price shall be…

  4. F4

    Represents the weighted average sales price per share. The shares sold at prices ranging from $152.87 to $153.85 per share. Full information regarding the number of shares sold at each price shall be…

  5. F5

    Represents the weighted average sales price per share. The shares sold at prices ranging from $153.88 to $154.84 per share. Full information regarding the number of shares sold at each price shall be…

  6. F6

    Represents the weighted average sales price per share. The shares sold at prices ranging from $154.9 to $155.9 per share. Full information regarding the number of shares sold at each price shall be pr…

  7. F7

    Represents the weighted average sales price per share. The shares sold at prices ranging from $155.92 to $156.91 per share. Full information regarding the number of shares sold at each price shall be…

  8. F8

    Represents the weighted average sales price per share. The shares sold at prices ranging from $156.96 to $157.96

  9. per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security hold…

  10. F9

    Represents the weighted average sales price per share. The shares sold at prices ranging from $157.97 to $158.96 per share. Full information regarding the number of shares sold at each price shall be…

  11. F10

    Represents the weighted average sales price per share. The shares sold at prices ranging from $158.99 to $159.99 per share. Full information regarding the number of shares sold at each price shall be…

  12. F11

    Represents the weighted average sales price per share. The shares sold at prices ranging from $160.00 to $160.99 per share. Full information regarding the number of shares sold at each price shall be…

  13. F12

    Represents the weighted average sales price per share. The shares sold at prices ranging from $161.00 to $161.97 per share. Full information regarding the number of shares sold at each price shall be…

  14. F13

    Represents the weighted average sales price per share. The shares sold at prices ranging from $162.02 to $163 per share. Full information regarding the number of shares sold at each price shall be pro…

  15. F14

    Represents the weighted average sales price per share. The shares sold at prices ranging from $163.03 to $163.6 per share. Full information regarding the number of shares sold at each price shall be p…

  16. F15

    The option is immediately exercisable. 25% of the shares subject to the option vested on September 1, 2016 and 1/48th of the shares subject to the option vest on each monthly anniversary thereafter,…

  17. F16

    25% of the shares subject to the option vested on October 24, 2020, and 1/48th of the shares subject to the option vest on each monthly anniversary thereafter, subject to the Reporting Person's contin…

  18. F17

    Represents performance stock options granted to the reporting person on September 1, 2020, that vested and became exercisable on December 19, 2022 as a result of the reporting person having met the ap…

  19. F18

    The option is immediately exercisable. 10% of the shares subject to the option vested on September 28, 2017, 15% of the shares subject to the option vested on September 28, 2018, and 1/48th of the sha…

  20. F19

    The option is immediately exercisable. 20% of the shares subject to the option vested and became exercisable on October 31, 2019 and 1/60th of the shares subject to the option vested and became exerci…

Original filing · 0001214659-26-011832
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