The cluster of open-market sales by two officers on the same day, without disclosed 10b5-1 plans, is a bearish signal. Monitor upcoming earnings or any material news that could have prompted the sales.
Price Chart
Executive Summary
Two insiders at Twist Bioscience sold a combined $2.08M in open-market sales on the same day, including the Chief Accounting Officer and a senior executive. The total value represents approximately 0.64% of the company's $326M market cap, a modest but notable cluster.
Key Financial Metrics
Key Facts
- Two insiders sold shares on 2026-10-02: CFO Robert F. Werner sold 1.5K shares ($280K) and Dennis Cho sold 9.5K shares ($1.80M).
- Total insider sales value: $2.08M, or ~0.64% of the $326M market cap.
- All sales were open-market (code S) with no 10b5-1 plan indicated in the filing.
- No insider purchases were reported in the cluster window.
Financial Impact
Insider sales of $2.08M represent 0.64% of market cap, a modest but non-trivial signal.
Risk Factors
- Insider sales may be liquidity-driven or part of pre-arranged plans not disclosed in the filing.
- Historical bearish calls on TWST have had mixed outcomes, with one large positive move contradicting the signal.
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-TWST-1791230751821 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 13, 2026 14d ago | Insider Cluster | $148.16 | awaiting T+20 | — | $145.25 (+1.96%) |
Oct 9, 2026 17d ago | 144 | $159.78 | awaiting T+20 | — | $145.25 (−9.09%) |
Oct 5, 2026 21d ago | Insider Cluster | $166.97 | awaiting T+20 | — | $145.25 (+13.01%) |
Sep 25, 2026 4w ago | Insider Cluster | $179.60 $145.25 | ▼ −19.13% | ▼ −19.09% | $145.25 (−19.13%) |
Sep 23, 2026 4w ago | Insider Cluster | $184.03 $135.47 | ▲ +26.39% | ▲ +25.97% | $145.25 (+21.07%) |
Sep 10, 2026 6w ago | Insider Cluster | $127.22 $159.78 | ▲ +25.59% | ▲ +23.73% | $145.25 (+14.17%) |
Aug 27, 2026 8w ago | Insider Cluster | $141.38 $179.60 | ▲ +27.03% | ▲ +27.52% | $145.25 (+2.74%) |
Aug 25, 2026 8w ago | Insider Cluster | $150.06 $184.03 | ▲ +22.64% | ▲ +22.49% | $145.25 (−3.21%) |
Aug 21, 2026 9w ago | Insider Cluster | $140.80 $164.60 | ▲ +16.90% | ▲ +15.61% | $145.25 (+3.16%) |
Aug 20, 2026 9w ago | Insider Cluster | $145.59 $165.83 | ▲ +13.90% | ▲ +12.89% | $145.25 (−0.23%) |
US Market Status
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