Company · Ownership research

Twist Bioscience Corp TWST

CIK 0001581280

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 117 rows; the complete set is available through the API.

Insider filings on file run through Nov 5, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $165.11M

Nov 1, 2023 – Nov 5, 2026
Available records · partial months are marked ·

202610 of 30 preview events · 117 available in 2026

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 3, 2026	Cho Dennis See Remarks	Sale	$128.50K 949 shares sold	1.49% sold Direct holding	▾
Nov 3, 2026	Finn Patrick John President and COO	Sale	$347.31K 2,565 shares sold	1.40% sold Direct holding	▾
Nov 3, 2026	Green Paula SVP of Human Resources	Sale	$136.35K 1,007 shares sold	0.94% sold Direct holding	▾
Nov 3, 2026	Leproust Emily M. Chief Executive Officer · Director	Sale	$619.19K 4,573 shares sold	0.81% sold Direct holding	▾
Nov 3, 2026	WERNER ROBERT F. Chief Accounting Officer	Sale	$20.04K 148 shares sold	0.34% sold Direct holding	▾
Oct 23, 2026	Finn Patrick John President and COO	Sale	$302.15K 2,245 shares sold	1.21% sold Direct holding	▾
Oct 9, 2026	Laponis Adam Chief Financial Officer	Sale	$384.82K 2,462 shares sold	2.45% sold Direct holding	▾
Oct 5, 2026	Leproust Emily M. Chief Executive Officer · Director	Sale10b5-1 footnote	$919.37K 4,548 shares sold	0.80% sold Direct holding	▾
Oct 2, 2026	Leproust Emily M. Chief Executive Officer · Director	Sale	$8.64M 45,736 shares sold	7.46% sold Direct holding	▾
Oct 2, 2026	WERNER ROBERT F. Chief Accounting Officer	Sale	$279.93K 1,482 shares sold	3.34% sold Direct holding	▾

Showing 30 / 117 record groups in 2026. The complete set is available through the API.

Twist Bioscience Corp · TWST

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 30 of 117 purchase / sale groups and 30 of 47 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"TWST","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.