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sellModerate cluster of 4

Christopher Ogden sold $124k of CTMX

Chief Financial Officer at CytomX Therapeutics, Inc.. 19,323 shares at an average of $6.42, traded Mar 17, 2026, filed Mar 19, 2026.

Warning score
47
Value
$124k
19,323 shares
Holdings after
296,948
-6% from before
From 52-week low
+1162%
low $0.43, close $5.45
From 52-week high
-19%
high $6.75, as of Mar 17, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $124k at market
    +10
  • Share of holdings sold
    Sold 6.1% of holdings
    0
  • Cluster
    4 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.

CTMXOct 9, 2026 · close 2.57
Since filing Mar 19, 2026: -46.2%SPY +18.9% · excess -65.2%

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 0001610717-26-000122, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 17, 2026SOpen-market sale
Common Stock
-19,323$6.42$124k296,948Mar 19, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
42Moderate
CTMXsell 4
CytomX Therapeutics, Inc.
Marcia Belvin
SVP, Chief Scientific Officer
$202k
31,492 shares
-9%
46Moderate
CTMXsell 4
CytomX Therapeutics, Inc.
Yu-Waye Chu
Chief Medical Officer
$137k
21,279 shares
-10%
42Moderate
CTMXsell 410b5-1
CytomX Therapeutics, Inc.
Sean A. McCarthy
CEO
$764k
118,969 shares
-10%
22Weak
CTMXsell10b5-1
CytomX Therapeutics, Inc.
Sean A. McCarthy
CEO
$462k
101,793 shares
-9%
21Weak
CTMXsell 3
CytomX Therapeutics, Inc.
Marcia Belvin
SVP, Chief Scientific Officer
$37k
13,884 shares
-5%
36Weak
CTMXsell 3
CytomX Therapeutics, Inc.
Sean A. McCarthy
CEO
$149k
55,511 shares
-5%
28Weak
CTMXsell 3
CytomX Therapeutics, Inc.
Christopher Ogden
Chief Financial Officer
$33k
12,255 shares
-6%
30Weak
CTMXsell 5
CytomX Therapeutics, Inc.
Marcia Belvin
SVP, Chief Scientific Officer
$12k
19,512 shares
-7%
30Weak
CTMXsell 5
CytomX Therapeutics, Inc.
Yu-Waye Chu
Chief Medical Officer
$2,411
4,025 shares
-3%
30Weak
CTMXsell 5
CytomX Therapeutics, Inc.
Lloyd A Rowland
General Counsel
$6,112
10,203 shares
-8%

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.

Christopher Ogden sold $124k of CTMX | InsiderTell