Skip to content
sellWeak cluster of 710b5-1 plan

Ryan Lynch sold $4,296 of CBIO

See Remarks at CRESCENT BIOPHARMA, INC.. 240 shares at an average of $17.90, traded Sep 16, 2026, filed Sep 18, 2026.

Warning score
10
Value
$4,296
240 shares
Holdings after
13,631
-2% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $4k at market
    0
  • Share of holdings sold
    Sold 1.7% of holdings
    0
  • Cluster
    7 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

CBIOOct 9, 2026 · close 14.91
Since filing Sep 18, 2026: -11.7%SPY +2.2% · excess -13.9%

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 0001628280-26-062709, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 16, 2026SOpen-market sale
Ordinary Shares10b5-1
-240$17.90$4,29613,63124 d ago

Related signals

Other insiders at CRESCENT BIOPHARMA, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
10Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Barbara Harlin Bispham
See Remarks
$11k
620 shares
-3%
31Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Joshua T Brumm
Chief Executive Officer
$160k
9,447 shares
-3%
23Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Jonathan McNeill
President and COO
$77k
4,570 shares
-3%
17Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Richard William Scalzo
Chief Financial Officer
$10k
568 shares
-3%
10Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Ellie Eunkyung Im
Chief Medical Officer
$11k
623 shares
-3%
10Weak
CBIOsell 710b5-1
CRESCENT BIOPHARMA, INC.
Jan Pinkas
Chief Scientific Officer
$12k
658 shares
-3%

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.

Ryan Lynch sold $4,296 of CBIO | InsiderTell