Twist Bioscience Corporation
Twist Bioscience Corporation (TWST) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · TWST · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
127
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Twist Bioscience Corporation insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
TWST insider buying and selling by quarter
TWST insider selling · TWST insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · TWST ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
TWST executive sell shares · TWST board member insider trading · TWST insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 29, 2026 | Cho Dennis See Remarks | Sale | 14,205 | $991K | Form 4 |
| May 29, 2026 | Laponis Adam CFO | Sale | 4,000 | $280K | Form 4 |
| May 28, 2026 | Leproust Emily M. CEO · Director | Option | 16,470 | $145K | Form 4 |
| May 28, 2026 | Leproust Emily M. CEO · Director | Sale | 1,482 | $97K | Form 4 |
| May 28, 2026 | Leproust Emily M. CEO · Director | Sale | 900 | $60K | Form 4 |
| May 28, 2026 | Leproust Emily M. CEO · Director | Sale | 7,623 | $518K | Form 4 |
| May 28, 2026 | Leproust Emily M. CEO · Director | Sale | 6,465 | $444K | Form 4 |
| May 28, 2026 | Starovasnik Melissa A. Director | Sale | 2,500 | $170K | Form 4 |
| May 26, 2026 | Starovasnik Melissa A. Director | Sale | 500 | $31K | Form 4 |
| May 27, 2026 | Leproust Emily M. CEO · Director | Option | 25,017 | $221K | Form 4 |
| May 26, 2026 | Leproust Emily M. CEO · Director | Option | 24,282 | $214K | Form 4 |
| May 27, 2026 | Leproust Emily M. CEO · Director | Sale | 23,752 | $1.55M⚡ | Form 4 |
| May 26, 2026 | Leproust Emily M. CEO · Director | Sale | 24,282 | $1.58M⚡ | Form 4 |
| May 27, 2026 | Leproust Emily M. CEO · Director | Sale | 1,265 | $84K | Form 4 |
| May 26, 2026 | WERNER ROBERT F. CAO | Sale | 800 | $50K | Form 4 |
| May 21, 2026 | Green Paula SVP of Human Resources | Sale | 1,399 | $75K | Form 4 |
| May 21, 2026 | Finn Patrick John President and COO | Sale | 4,160 | $222K | Form 4 |
| May 21, 2026 | Cho Dennis See Remarks | Sale | 1,642 | $87K | Form 4 |
| May 21, 2026 | WERNER ROBERT F. CAO | Sale | 688 | $37K | Form 4 |
| May 21, 2026 | Leproust Emily M. CEO · Director | Sale | 6,888 | $367K | Form 4 |
| May 21, 2026 | Laponis Adam CFO | Sale | 2,019 | $108K | Form 4 |
| May 12, 2026 | JOHANNESSEN JAN Director | Option | 12,000 | $168K | Form 4 |
| May 12, 2026 | JOHANNESSEN JAN Director | Sale | 12,000 | $673K | Form 4 |
| May 8, 2026 | WERNER ROBERT F. CAO | Sale | 4,961 | $282K | Form 4 |
| May 4, 2026 | Cho Dennis See Remarks | Sale | 1,962 | $112K | Form 4 |
Leproust Emily M.
CEO · Director
Date
May 28
Shares
16,470
Price
$8.82
Value
$145K
Leproust Emily M.
CEO · Director
Date
May 27
Shares
25,017
Price
$8.82
Value
$221K
Leproust Emily M.
CEO · Director
Date
May 26
Shares
24,282
Price
$8.82
Value
$214K
Leproust Emily M.
CEO · Director
Date
May 27
Shares
23,752
Price
$65.24
Value
$1.55M ⚡
Leproust Emily M.
CEO · Director
Date
May 26
Shares
24,282
Price
$65.08
Value
$1.58M ⚡
Green Paula
SVP of Human Resources
Date
May 21
Shares
1,399
Price
$53.26
Value
$75K
Finn Patrick John
President and COO
Date
May 21
Shares
4,160
Price
$53.26
Value
$222K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About TWST insider trading
TWST insider trades
Twist Bioscience Corporation (TWST) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Leproust Emily M. (CEO · Director), Finn Patrick John (President and COO), WERNER ROBERT F. (CAO). Over the past 12 months, 5 insiders have filed transactions with the SEC. TWST insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Twist Bioscience Corporation's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
TWST insider trading · 5 questionsThe insiders of Twist Bioscience Corporation (TWST) include executives and directors such as Leproust Emily M. (CEO · Director), Finn Patrick John (President and COO), WERNER ROBERT F. (CAO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026