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sellModerate cluster of 510b5-1 plan

Robert Barrow sold $1.2M of DFTX

Chief Executive Officer at Definium Therapeutics, Inc.. 31,550 shares at an average of $36.57, traded Sep 25, 2026, filed Sep 29, 2026.

Warning score
45
Value
$1.2M
31,550 shares
Holdings after
2,213,090
-1% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.2M at market
    +25
  • Share of holdings sold
    Sold 1.4% of holdings
    0
  • Cluster
    5 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.

DFTXOct 9, 2026 · close 36.90
Since filing Sep 29, 2026: -3.4%SPY +1.9% · excess -5.3%

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 0001104659-26-112062, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 25, 2026SOpen-market sale
Common Shares10b5-1
-31,550$36.57$1.2M2,213,09013 d ago

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
27Weak
DFTXsell 510b5-1
Definium Therapeutics, Inc.
Brandi Roberts
Chief Financial Officer
$123k
3,377 shares
-1%
28Weak
DFTXsell 510b5-1
Definium Therapeutics, Inc.
Mark Sullivan
Chief Legal Officer
$514k
14,051 shares
-3%
20Weak
DFTXsell 510b5-1
Definium Therapeutics, Inc.
Matthew T. Wiley
Chief Commercial Officer
$113k
3,097 shares
-1%
26Weak
DFTXsell 510b5-1
Definium Therapeutics, Inc.
Daniel Karlin
Chief Medical Officer
$397k
10,853 shares
-1%
26Weak
DFTXsell10b5-1
Definium Therapeutics, Inc.
Robert Barrow
Chief Executive Officer
$722k
19,023 shares
-1%
37Weak
DFTXsell 310b5-1
Definium Therapeutics, Inc.
Robert Barrow
Chief Executive Officer
$451k
24,431 shares
-3%
22Weak
DFTXsell 310b5-1
Definium Therapeutics, Inc.
Mark Sullivan
Chief Legal Officer
$198k
10,702 shares
-4%
21Weak
DFTXsell 310b5-1
Definium Therapeutics, Inc.
Daniel Karlin
Chief Medical Officer
$148k
8,018 shares
-2%
35Weak
DFTXsell 310b5-1
Definium Therapeutics, Inc.
Robert Barrow
Chief Executive Officer
$339k
25,791 shares
-3%
18Weak
DFTXsell 310b5-1
Definium Therapeutics, Inc.
Daniel Karlin
Chief Medical Officer
$74k
5,600 shares
-1%

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.

Robert Barrow sold $1.2M of DFTX | InsiderTell