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sellWeak cluster of 410b5-1 plan

Claire Mazumdar sold $154k of BCAX

Chief Executive Officer at Bicara Therapeutics Inc.. 8,234 shares at an average of $18.74, traded Mar 4, 2026, filed Mar 6, 2026.

Warning score
16
Value
$154k
8,234 shares
Holdings after
339,392
-2% from before
From 52-week low
+113%
low $8.71, close $18.54
From 52-week high
-3%
high $19.11, as of Mar 4, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $154k at market
    +11
  • Share of holdings sold
    Sold 2.4% of holdings
    0
  • Cluster
    4 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 9, 2026 · close 17.50
Since filing Mar 6, 2026: -5.3%SPY +16.7% · excess -21.9%

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 0001628280-26-015778, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 4, 2026MOption exercise
Common Stock10b5-1
+2,631$3.79$9,971342,023Mar 6, 2026
Mar 4, 2026SOpen-market sale
Common Stock10b5-1
-2,631$18.73$49k339,392Mar 6, 2026
Mar 5, 2026MOption exercise
Common Stock10b5-1
+1,786$3.79$6,769341,178Mar 6, 2026
Mar 5, 2026SOpen-market sale
Common Stock10b5-1
-1,786$18.74$33k339,392Mar 6, 2026
Mar 6, 2026MOption exercise
Common Stock10b5-1
+3,817$3.79$14k343,209Mar 6, 2026
Mar 6, 2026SOpen-market sale
Common Stock10b5-1
-3,817$18.75$72k339,392Mar 6, 2026
Mar 4, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-2,631$0.00$0233,476Mar 6, 2026
Mar 5, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-1,786$0.00$0231,690Mar 6, 2026
Mar 6, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-3,817$0.00$0227,873Mar 6, 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%
5Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
David Raben
Chief Medical Officer
$104k
5,500 shares
-9%
13Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Ivan Hyep
Chief Financial Officer
$170k
9,200 shares
-6%
19Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Claire Mazumdar
Chief Executive Officer
$282k
15,000 shares
-4%
13Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President and COO
$246k
12,500 shares
-6%
26Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Claire Mazumdar
Chief Executive Officer
$705k
36,766 shares
-10%
19Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
David Raben
Chief Medical Officer
$306k
16,500 shares
-30%
21Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Ivan Hyep
Chief Financial Officer
$301k
16,518 shares
-10%
14Weak
BCAXsell 410b5-1
Bicara Therapeutics Inc.
Ryan Cohlhepp
President and COO
$316k
17,392 shares
-8%
38Weak
BCAXbuy
Bicara Therapeutics Inc.
Ra Capital Management, L.p.
director, owner
$4.8M
300,000 shares
+7%

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 $154k of BCAX | InsiderTell