Insider · CIK 0002109966
Sean Wuxiong Cao
Files at NBP (NovaBridge Biosciences). First filing May 18, 2026, latest Sep 11, 2026.
Sean Wuxiong Cao files SEC Form 4 as officer and director at NBP (NovaBridge Biosciences). Since May 18, 2026, Sean Wuxiong Cao has reported 0 open-market buys worth $0 and 2 open-market sells worth $122k, the latest filed on Sep 11, 2026.
A track record needs three past buys with six months of prices behind them; Sean Wuxiong Cao has 0, so none is measured yet.
The newest scored trade: sold $80k of NBP on Sep 9, 2026, filed Sep 11, 2026, scored 49 (moderate). In the last 12 months: 0 buys worth $0 and 2 sells worth $122k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
NBP: NovaBridge Biosciences
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 49Moderate | NovaBridge Biosciences | $80k 107,978 shares | -29% | - | |
| 31Weak | NBPsell NovaBridge Biosciences | $43k 21,399 shares | -38% | +118% from low-71% from high |
Transactions
Every row this insider has filed, 8 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | NBP NovaBridge Biosciences | SOpen-market sale Ordinary Shares | -107,978 | $0.74 | $80k | 266,467 | 32 d ago |
| Sep 3, 2026 | NBP NovaBridge Biosciences | MOption exercise Ordinary Shares | +235,136 | - | - | 270,209 | 35 d ago |
| Sep 3, 2026 | NBP NovaBridge Biosciences | MOption exercise Ordinary Shares | +104,236 | - | - | 374,445 | 35 d ago |
| Sep 3, 2026 | NBP NovaBridge Biosciences | MOption exercise Restricted Share Unitsderivative | -102,233 | $0.00 | $0 | 306,700 | 35 d ago |
| Sep 3, 2026 | NBP NovaBridge Biosciences | MOption exercise Restricted Share Unitsderivative | -45,320 | $0.00 | $0 | 135,960 | 35 d ago |
| Jun 22, 2026 | NBP NovaBridge Biosciences | AGrant or award Restricted Share Unitsderivative | +181,280 | $0.00 | $0 | 181,280 | Jun 24, 2026 |
| Jun 22, 2026 | NBP NovaBridge Biosciences | AGrant or award 2025 Employee Share Option (right to buy)derivative | +181,290 | $0.00 | $0 | 181,290 | Jun 24, 2026 |
| May 14, 2026 | NBP NovaBridge Biosciences | SOpen-market sale Ordinary Shares | -21,399 | $1.99 | $43k | 35,073 | May 18, 2026 |
Questions about Sean Wuxiong Cao
Answered from the filings on this page, as of the latest one.
Is Sean Wuxiong Cao buying or selling?
In the last 12 months Sean Wuxiong Cao reported 0 open-market buys worth $0 and 2 open-market sells worth $122k on SEC Form 4; the latest was sold $80k of NBP on Sep 9, 2026. Grants, option exercises and tax withholding are not counted.
How did Sean Wuxiong Cao's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Sean Wuxiong Cao has 0.
Where does Sean Wuxiong Cao file Form 4?
Sean Wuxiong Cao has filed Form 4 at NBP (NovaBridge Biosciences) as Chief Bus. Development Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.