TWST Twist Bioscience Corp
Price Chart
Executive Summary
A cluster of insider selling at Twist Bioscience over the past week, led by CEO Emily Leproust who sold ~$3.2M in open-market shares alongside option exercises, while the CAO and a director also sold smaller amounts. The total open-market sales of ~$4.0M represent ~0.1% of the $4.2B market cap, falling at the low end of the proportionality band. The CEO's sales are part of a regular pattern tied to option exercises, reducing their informational signal per the academic literature.
Key Financial Metrics
Actionable Insight
The CEO's sales are mechanically tied to option exercises and follow a pattern seen in prior periods — not a fresh bearish signal. The dollar amount is trivial relative to market cap. No actionable trading signal from this cluster alone. Monitor the next 10-Q for any fundamental deterioration that would justify a more cautious stance.
Key Facts
- CEO Emily Leproust sold 49,516 shares open-market for ~$3.2M across May 26-28, all tied to same-day option exercises at $8.82 or $0 strike
- CAO Robert Werner sold 800 shares for ~$50K on May 26
- Director Melissa Starovasnik sold 3,000 shares for ~$201K across May 26 and May 28
- Total open-market sales in the cluster: ~$4.0M, or ~0.1% of market cap
- Non-cash option exercises (M transactions) by CEO totaled $0 economic value for 65,769 shares
- Prior 30-day insider activity showed 5 sells totaling $3.4M, consistent with ongoing selling pattern
Financial Impact
Total open-market sales of ~$4.0M, representing ~0.1% of $4.2B market cap
Risk Factors
- CEO selling alongside option exercises could be misinterpreted as bearish by the market
- If the company reports disappointing earnings in the next quarter, the insider sales may be viewed in hindsight as informed
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-TWST-1780344427670 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 2, 2026
3d ago
|
Insider Cluster
| $72.33 $73.93 | ▲ +2.21% | ▲ +1.81% | $69.22 (−4.30%) |
|
Jun 1, 2026
4d ago
|
Insider Cluster
| $70.15 $72.33 | ▲ +3.11% | ▲ +3.80% | $69.22 (−1.33%) |
|
May 28, 2026
8d ago
|
Insider Cluster
| $66.87 $67.86 | ▼ −1.48% | ▼ −1.21% | $69.22 (−3.51%) |
|
May 26, 2026
10d ago
|
Insider Cluster
| $64.17 $69.03 | ▲ +7.57% | ▲ +7.03% | $69.22 (+7.87%) |
|
May 4, 2026
4w ago
|
8-K
| $56.19 $56.70 | ▲ +0.91% | ▲ +0.11% | $69.22 (+23.19%) |
|
Apr 17, 2026
7w ago
|
Insider Cluster
| $59.81 $61.88 | ▲ +3.46% | ▲ +3.65% | $69.22 (+15.73%) |
|
Mar 17, 2026
11w ago
|
Insider Cluster
| $47.28 $44.46 | ▼ −5.96% | ▼ −4.57% | $69.22 (+46.40%) |
|
Mar 6, 2026
13w ago
|
Insider Cluster
| $46.94 $48.33 | ▼ −2.96% | ▼ −2.12% | $69.22 (−47.46%) |
|
Feb 23, 2026
14w ago
|
Insider Cluster
| $48.09 $48.54 | ▼ −0.94% | ▼ −0.20% | $69.22 (−43.94%) |
|
Feb 23, 2026
14w ago
|
Insider Cluster
| $48.09 $48.54 | ▼ −0.94% | ▼ −0.20% | $69.22 (−43.94%) |
US Market Status
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