StockCIK 1581280

Twist Bioscience Corp (TWST): Insider Trades and Fund Holdings

In the past 12 months, Twist Bioscience Corp insiders reported 0 open-market purchases worth $0 and 31 sales worth $101.4M; 9 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$101.4MSold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 27, 2026.

Recent TWST insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 27	Oct 23	Patrick John FinnCOO	COO	▼ SELL	2,245	134.59	$302K	−1.2%	Form 4 ↗
Oct 13	Oct 9	Adam LaponisCFO	CFO	▼ SELL	2,462	156.31	$385K	−2.4%	Form 4 ↗
Oct 7	Oct 5	Emily M. LeproustCEO	CEO	▼ SELL10b5-1	4,548	202.15	$919K	−0.8%	Form 4 ↗
Oct 5	Oct 2	Emily M. LeproustCEO	CEO	▼ SELL10b5-1	45,736	188.88	$8.64M	−7.5%	Form 4 ↗
Oct 5	Oct 2	Patrick John FinnCOO	COO	▼ SELL	25,714	188.88	$4.86M	−12%	Form 4 ↗
Oct 5	Oct 2	Paula GreenSVP	SVP	▼ SELL	10,088	188.88	$1.91M	−8.6%	Form 4 ↗
Oct 5	Oct 2	Dennis ChoSee Remarks	See Remarks	▼ SELL	9,514	188.88	$1.80M	−13%	Form 4 ↗
Oct 5	Oct 2	Adam LaponisCFO	CFO	▼ SELL	8,057	188.88	$1.52M	−7.4%	Form 4 ↗
Oct 5	Oct 2	Robert F. WernerCAO	CAO	▼ SELL	1,482	188.88	$280K	−3.3%	Form 4 ↗
Oct 5	Oct 1	Emily M. LeproustCEO	CEO	▼ SELL10b5-1	655	200.00	$131K	−0.1%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

All 31 TWST insider trades →

Insiders who traded in the past year

Insider	Role	Bought	Sells	Sold	Latest
Patrick John Finn	COO	$0	4	$14.9M	Oct 27, 2026
Adam Laponis	CFO	$0	3	$2.18M	Oct 13, 2026
Emily M. Leproust	CEO	$0	10	$77.2M	Oct 7, 2026
Paula Green	SVP	$0	4	$2.25M	Oct 5, 2026
Dennis Cho	See Remarks	$0	5	$3.97M	Oct 5, 2026
Robert F. Werner	CAO	$0	4	$522K	Oct 5, 2026
Katryn Blake	Director	$0	1	$275K	Aug 14, 2026

Tracked funds that report TWST

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Bridgewater Associates	Q2 2026	18,647	$1.92M	0.01%	▲ New
Duquesne Family Office	Q2 2026	0	$0	0.00%	▼ Sold out

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →