Skip to content
sellModerate cluster of 3

Sean Wuxiong Cao sold $80k of NBP

Chief Bus. Development Officer at NovaBridge Biosciences. 107,978 shares at an average of $0.74, traded Sep 9, 2026, filed Sep 11, 2026.

Warning score
49
Value
$80k
107,978 shares
Holdings after
266,467
-29% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $80k at market
    +9
  • Share of holdings sold
    Sold 29% of holdings
    +10
  • Cluster
    3 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NBPOct 9, 2026 · close 1.39
Since filing Sep 11, 2026: -12.3%SPY +2.1% · excess -14.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0002109966-26-000008, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 9, 2026SOpen-market sale
Ordinary Shares
-107,978$0.74$80k266,46732 d ago

Related signals

Other insiders at NovaBridge Biosciences and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
8Weak
NBPsell 2
NovaBridge Biosciences
Phillip Andrew Dennis
Chief Medical Officer
$5,828
8,209 shares
-5%
8Weak
NBPsell 2
NovaBridge Biosciences
Cong Claire Xu
EVP, Clinical Development
$2,593
3,282 shares
-1%
0Weak
NBPsell
NovaBridge Biosciences
Phillip Andrew Dennis
Chief Medical Officer
$5,606
8,494 shares
-5%
31Weak
NBPsell
NovaBridge Biosciences
Sean Wuxiong Cao
See Remarks
$43k
21,399 shares
-38%
50Moderate
NBPbuy
NovaBridge Biosciences
Mark Arnold Hagler
See Remarks
$577k
230,000 shares
-

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.