Twist Bioscience Corporation (TWST) Insider Trading

Over the last 3 months, TWST insiders made 0 open-market buys and 46 sales, a net sale of -$15.5M (SEC Form 4). Over the last 6 months, 161 institutions increased and 167 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
46
Net (3m)
-$15.5M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +116.5%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Jun 26, 2026Cho Dennisofficer: See RemarksSell14,205$89.75
Jun 26, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell18,880$95.00
Jun 24, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell1,688$87.32
Jun 24, 2026Green Paulaofficer: SVP of Human ResourcesSell291$87.32
Jun 24, 2026Cho Dennisofficer: See RemarksSell346$87.32
Jun 17, 2026Green Paulaofficer: SVP of Human ResourcesSell2,028$82.17
Jun 17, 2026Green Paulaofficer: SVP of Human ResourcesOption26,137$23.33
Jun 17, 2026Green Paulaofficer: SVP of Human ResourcesSell24,109$81.62
Jun 10, 2026WERNER ROBERT F.officer: Chief Accounting OfficerSell1,127$69.07
Jun 10, 2026Cho Dennisofficer: See RemarksSell402$69.84
Jun 10, 2026Green Paulaofficer: SVP of Human ResourcesSell884$69.84
Jun 10, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell2,265$69.84
Jun 10, 2026WERNER ROBERT F.officer: Chief Accounting OfficerSell232$69.84
Jun 2, 2026Laponis Adamofficer: Chief Financial OfficerSell4,000$70.00
Jun 2, 2026Cho Dennisofficer: See RemarksSell14,205$69.75
Jun 1, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell6,465$68.61
Jun 1, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell1,482$65.33
Jun 1, 2026Starovasnik Melissa A.directorSell2,500$68.00
Jun 1, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell7,623$67.95
Jun 1, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell900$66.85
Jun 1, 2026Leproust Emily M.director, officer: Chief Executive OfficerOption16,470$8.82
May 28, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell23,752$65.24
May 28, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell24,282$65.08
May 28, 2026Leproust Emily M.director, officer: Chief Executive OfficerOption24,282$8.82
May 28, 2026Leproust Emily M.director, officer: Chief Executive OfficerOption25,017$8.82
May 28, 2026WERNER ROBERT F.officer: Chief Accounting OfficerSell800$62.48
May 28, 2026Starovasnik Melissa A.directorSell500$61.04
May 28, 2026Leproust Emily M.director, officer: Chief Executive OfficerSell1,265$66.28
May 26, 2026Green Paulaofficer: SVP of Human ResourcesSell1,399$53.26
May 26, 2026Laponis Adamofficer: Chief Financial OfficerSell2,019$53.26

Source: TWST SEC Form 4 filings, latest Jun 26, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their TWST positions over the last 6 months (SEC Form 13F).

Increased
161
New positions
119
Reduced
167
Sold out
68
Largest moves
InstitutionActionSharesFiled
ARK INVESTMENT MANAGEMENT LLCIncreased7.6MFeb 11, 2026
ARTISAN PARTNERS LIMITED PARTNERSHIPIncreased6.4MMay 13, 2026
ARK INVESTMENT MANAGEMENT LLCReduced6.3MMay 12, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCIncreased6.0MFeb 9, 2026
BLACKROCK, INC.Reduced5.9MFeb 12, 2026
ARTISAN PARTNERS LIMITED PARTNERSHIPReduced5.8MFeb 17, 2026
VANGUARD GROUP INCIncreased5.8MJan 29, 2026
BLACKROCK, INC.Reduced5.6MMay 13, 2026
EDGEPOINT INVESTMENT GROUP INC.Increased5.4MMay 15, 2026
EDGEPOINT INVESTMENT GROUP INC.Increased5.4MFeb 17, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position5.3MMay 15, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCReduced5.3MMay 8, 2026
STATE STREET CORPIncreased3.7MMay 15, 2026
STATE STREET CORPIncreased3.6MFeb 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position2.6MMay 8, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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