$TWST

$159.85 +$14.60 (10.05%) Close

$TWST Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 62.7M shares outstanding

Who owns TWST?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 59.0%

Artisan Partners Limited Partnership 7.7% · ARK Investment Management LLC 7.3%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

334

+53 vs last qtr

Net shares bought

−742.0K

by institutions in Q2 2026

New / sold out

88 / 35

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Price T Rowe Associates Inc /MD/ +3.6M
FMR LLC +2.8M

Biggest sellers in Q2 2026

William Blair Investment Management, LLC −3.1M
EdgePoint Investment Group Inc. −2.9M

Who is planning to sell?

Notices of proposed sale, last 12 months

$145M

135 notices from 10 people

Shares covered

1.3M

2.04% of the company

Arranged in advance

76%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Leproust Emily M. Officer $98.4M
Finn Patrick John Officer $21.6M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+52.6%

+8.82% a year

Each share's claim on the business

−34.5%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $279M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years63% 3–5 years10% 1–3 years13% Under 1 year14%

Quarterly turnover

25.2%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting TWST on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AP Artisan Partners Limited Partnership	4.8M	7.66%	−1.6M (−24.6%)	2023	0.8%
Shares held by quarter Peak holding6.4M (Q3'25) Change over 8 quarters−1.2M Share of the company7.660% Artisan Partners Limited Partnership's full portfolio →
AI ARK Investment Management LLC	4.5M	7.26%	−1.8M (−28.3%)	≤2021	3.0%
Shares held by quarter Peak holding7.6M (Q4'25) Change over 8 quarters−808.3K Share of the company7.260% ARK Investment Management LLC's full portfolio →

Artisan Partners Limited Partnership

4.8M

% of company

7.66%

Change vs last qtr

−1.6M (−24.6%)

Held since

2023

ARK Investment Management LLC

4.5M

% of company

7.26%

Change vs last qtr

−1.8M (−28.3%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Twist Bioscience Corporation, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting TWST on Form N-PORT; together they hold 53.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$193M	1.9M	2.99%	0.01%	June 30, 2026
AI ARK Innovation ETF ARK ETF Trust	$184M	2.0M	3.21%	3.31%	July 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$193M

% of company

2.99%

% of the fund

0.01%

As of

June 30, 2026

ARK Innovation ETF

ARK ETF Trust

Position value

$184M

% of company

3.21%

% of the fund

3.31%

As of

July 31, 2026

23 more funds behind a free account

See every fund holding Twist Bioscience Corporation and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
CK Crandell Keith Insider	1.9M	2.98%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.980% Crandell Keith's insider activity →
RR Ragusa Robert P Insider	1.7M	2.76%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.760% Ragusa Robert P's insider activity →

Crandell Keith

Insider

1.9M

% of company

2.98%

Change vs last qtr

—

Held since

—

Ragusa Robert P

Insider

1.7M

% of company

2.76%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Twist Bioscience Corporation.

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