CEO's $2.65M open-market buy is a rare conviction signal. Monitor for upcoming catalysts (pipeline data, partnership, or financing) that may have prompted the insider's confidence. The stock's recent trading range ($99-$112) suggests the CEO sees significant upside.
Price Chart
Executive Summary
CEO Mark Lappe purchased $2.65M of INBX stock across six open-market trades between September 1-8, 2026, at prices ranging from $99.29 to $112.28. This is a large, concentrated insider buy by the top executive, representing a strong bullish signal.
Key Financial Metrics
Key Facts
- CEO Mark Lappe bought $2.65M of INBX stock in six open-market purchases over eight days.
- Trades executed at prices between $99.29 and $112.28 per share.
- No 10b5-1 plan indicated; all purchases are direct open-market buys.
- This is a single-insider conviction buy by the CEO, the strongest insider signal type.
Financial Impact
$2.65M insider purchase by CEO; no market cap provided for proportionality check, but absolute size is material for a biotech.
Risk Factors
- Insider buys can be misinterpreted if tied to pre-arranged plans or tax considerations, but no 10b5-1 plan is indicated here.
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| INSIDER-BUY Data (Synthetic) | 0001366074-26-000002 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 14, 2026 11d ago | Insider Buy | $90.50 | awaiting T+60 | — | $88.61 (−2.09%) |
Sep 28, 2026 28d ago | Insider Cluster | $104.83 | awaiting T+60 | — | $88.61 (−15.47%) |
Sep 17, 2026 5w ago | Insider Cluster | $109.35 | awaiting T+60 | — | $88.61 (−18.97%) |
Sep 15, 2026 5w ago | Insider Cluster | $101.77 | awaiting T+60 | — | $88.61 (−12.93%) |
Sep 15, 2026 5w ago | 144 | $101.77 | awaiting T+60 | — | $88.61 (−12.93%) |
Sep 14, 2026 6w ago | 144 | $105.61 | awaiting T+60 | — | $88.61 (−16.10%) |
Sep 11, 2026 6w ago | 144 | $109.27 | awaiting T+60 | — | $88.61 (−18.91%) |
Sep 10, 2026 6w ago | Insider Cluster | $109.27 | awaiting T+60 | — | $88.61 (−18.91%) |
Sep 8, 2026 6w ago | Insider Cluster | $112.86 | awaiting T+60 | — | $88.61 (−21.49%) |
Sep 8, 2026 6w ago | Insider Buy | $112.86 | awaiting T+60 | — | $88.61 (−21.49%) |
US Market Status
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