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sellModerate cluster of 2

David Krempa sold $3.2M of ETON

Chief Business Officer at Eton Pharmaceuticals, Inc.. 100,000 shares at an average of $32.30, traded May 22, 2026, filed May 27, 2026.

Warning score
53
Value
$3.2M
100,000 shares
Holdings after
25,249
-147% from before
From 52-week low
+141%
low $13.50, close $32.59
From 52-week high
-7%
high $35.00, as of May 22, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $3.2M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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.

ETONOct 12, 2026 · close 55.25
Since filing May 27, 2026: +70.5%SPY +4.2% · excess +66.3%

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 0001437749-26-018628, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 22, 2026MOption exercise
Common Stock
+30,591$3.58$110k68,046May 27, 2026
May 22, 2026SOpen-market sale
Common Stock
-32,963$33.22$1.1M35,083May 27, 2026
May 22, 2026SOpen-market sale
Common Stock
-9,315$33.88$316k25,768May 27, 2026
May 22, 2026SOpen-market sale
Common Stock
-519$35.00$18k25,249May 27, 2026
May 26, 2026MOption exercise
Common Stock
+25,000$1.38$35k50,249May 27, 2026
May 26, 2026MOption exercise
Common Stock
+12,524$1.37$17k62,773May 27, 2026
May 26, 2026SOpen-market sale
Common Stock
-37,524$31.49$1.2M25,249May 27, 2026
May 27, 2026MOption exercise
Common Stock
+12,476$1.37$17k37,725May 27, 2026
May 27, 2026MOption exercise
Common Stock
+7,203$3.58$26k44,928May 27, 2026
May 27, 2026SOpen-market sale
Common Stock
-19,679$31.47$619k25,249May 27, 2026
May 22, 2026MOption exercise
Employee Stock Optionderivative
-30,591$0.00$0125,609May 27, 2026
May 26, 2026MOption exercise
Employee Stock Optionderivative
-25,000$0.00$00May 27, 2026
May 26, 2026MOption exercise
Employee Stock Optionderivative
-12,524$0.00$012,476May 27, 2026
May 27, 2026MOption exercise
Employee Stock Optionderivative
-12,476$0.00$00May 27, 2026
May 27, 2026MOption exercise
Employee Stock Optionderivative
-7,203$0.00$0118,406May 27, 2026

Related signals

Other insiders at Eton Pharmaceuticals, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
13Weak
ETONsell
Eton Pharmaceuticals, Inc.
David Krempa
Chief Business Officer
$229k
4,166 shares
-9%
50Moderate
ETONsell 3
Eton Pharmaceuticals, Inc.
Paul Maier V
director
$3.0M
50,000 shares
-46%
50Moderate
ETONsell 3
Eton Pharmaceuticals, Inc.
Paul Maier V
director
$3.0M
50,000 shares
-46%
50Moderate
ETONsell 3
Eton Pharmaceuticals, Inc.
David Krempa
Chief Business Officer
$1.6M
25,000 shares
-40%
65Notable
ETONsell 3
Eton Pharmaceuticals, Inc.
Sean Brynjelsen
President & CEO
$6.1M
100,000 shares
-9%
37Weak
ETONsell
Eton Pharmaceuticals, Inc.
Opaleye Management Inc.
owner
$1.1M
28,315 shares
-1%
37Weak
ETONsell
Eton Pharmaceuticals, Inc.
Opaleye Management Inc.
owner
$1.1M
28,315 shares
-1%
37Weak
ETONsell
Eton Pharmaceuticals, Inc.
Opaleye Management Inc.
owner
$4.8M
126,685 shares
-5%
45Moderate
ETONsell
Eton Pharmaceuticals, Inc.
Jennifer McKie Adams
director
$1.6M
50,000 shares
-100%
63Notable
ETONsell 2
Eton Pharmaceuticals, Inc.
Sean Brynjelsen
President & CEO
$3.8M
120,000 shares
-13%

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.

David Krempa sold $3.2M of ETON | InsiderTell