Transaction · 0001214659-26-012551

Leproust Emily M.

Leproust Emily M., CEO, reported an open-market or private sale at Twist Bioscience Corp involving 45736.000000 shares for an estimated $8638798.62. Reported holdings after the transaction were 567308.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCEO
TWSTTwist Bioscience Corp
Filing timeOct 05
Trade dateOct 02, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded7.46%Shares sold ÷ (holdings after + shares sold). Estimated position before: 613,044 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.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$205.00
Pre-filing
1mo ago -36.1%1w ago -10.8%1d ago -8.3%
Returns since
7d30d90d180d1y

TWST price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
TWST since 2026-10-05Filed today · pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001214659-26-012551
Common Stock
Transaction date
Oct 02, 2026
Filed Oct 05, 2026, 08:05 PM · 3d delay
Shares
45.7k sh
$188.88 per share
Estimated value
-$8.63M
Computed from shares × price
Holdings after
567k 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
-4score
Filing-only score

-4

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.

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 number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by t…

  3. F3

    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…

  4. F4

    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…

Original filing · 0001214659-26-012551
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