NBP insider trading — NovaBridge Biosciences
Over the last 90 days, insiders at NovaBridge Biosciences (NBP) made 0 open-market purchases worth $0 and 3 open-market sales worth $88K, making them net sellers by $88K. The largest sale was by Cao Sean Wuxiong (Chief Bus. Development Officer), who sold 107,978 shares for $80K on Sep 9, 2026.
Updated Oct 16, 2026.
Recent NBP insider transactions
Every Form 4 filed by NovaBridge Biosciences officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 | Dennis Phillip Andrew | Chief Medical Officer | S · Sale | Direct | 8,209 | $0.71 | $6K | Form 4 |
| Sep 17, 2026 | Dennis Phillip Andrew | Chief Medical Officer | M · Option exercise | Direct | 23,695 | — | — | Form 4 |
| Sep 9, 2026 | Cao Sean Wuxiong | Chief Bus. Development Officer | S · Sale | Direct | 107,978 | $0.74 | $80K | Form 4 |
| Sep 3, 2026 | Cao Sean Wuxiong | Chief Bus. Development Officer | M · Option exercise | Direct | 339,372 | — | — | Form 4 |
| Aug 31, 2026 | Xu Cong Claire | EVP, Clinical Development | S · Sale | Direct | 3,282 | $0.79 | $3K | Form 4 |
| Aug 30, 2026 | Xu Cong Claire | EVP, Clinical Development | M · Option exercise | Direct | 9,382 | — | — | Form 4 |
| Aug 22, 2026 | Lenz Robert A. | Director | M · Option exercise | Direct | 17,218 | — | — | Form 4 |
NBP insider trading FAQ
Are insiders buying NBP stock?
Not on the open market. In the last 90 days, NovaBridge Biosciences insiders made no open-market purchases, and 3 open-market sales totaling $88K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading NBP?
Recent sellers: Cao Sean Wuxiong, Dennis Phillip Andrew, Xu Cong Claire.
Where does NBP insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.