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sellWeak cluster of 310b5-1 plan

Claire Mazumdar sold $280k of BCAX

Chief Executive Officer at Bicara Therapeutics Inc.. 10,000 shares at an average of $27.98, traded Aug 10, 2026, filed Aug 12, 2026.

Warning score
19
Value
$280k
10,000 shares
Holdings after
362,152
-3% from before
From 52-week low
+178%
low $9.99, close $27.73
From 52-week high
-9%
high $30.40, as of Aug 10, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $280k at market
    +14
  • Share of holdings sold
    Sold 2.7% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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.

BCAXOct 12, 2026 · close 17.33
Since filing Aug 12, 2026: -29.6%SPY +1.0% · excess -30.6%

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 0001470831-26-000813, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 10, 2026MOption exercise
Common Stock10b5-1
+10,000$3.79$38k372,152Aug 12, 2026
Aug 10, 2026SOpen-market sale
Common Stock10b5-1
-10,000$27.98$280k362,152Aug 12, 2026
Aug 10, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-10,000$0.00$0110,546Aug 12, 2026

Related signals

Other insiders at Bicara Therapeutics Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
6Weak
BCAXsell10b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President, COO & Interim CEO
$401k
17,500 shares
-9%
18Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President and COO
$525k
18,750 shares
-9%
17Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ivan Hyep
Chief Financial Officer
$350k
12,500 shares
-9%
19Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Claire Mazumdar
Chief Executive Officer
$284k
10,000 shares
-3%
29Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ivan Hyep
Chief Financial Officer
$808k
28,000 shares
-18%
28Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President and COO
$833k
28,750 shares
-14%
14Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ivan Hyep
Chief Financial Officer
$188k
9,200 shares
-6%
19Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Claire Mazumdar
Chief Executive Officer
$301k
15,000 shares
-4%
13Weak
BCAXsell 310b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President and COO
$254k
12,500 shares
-6%
6Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
David Raben
Chief Medical Officer
$126k
5,500 shares
-9%

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.

Claire Mazumdar sold $280k of BCAX | InsiderTell