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sellWeak10b5-1 plan

Dinesh Ph D Patel V sold $15M of PTGX

President and CEO at Protagonist Therapeutics, Inc. 100,000 shares at an average of $148.91, traded Aug 10, 2026, filed Aug 12, 2026.

Warning score
20
Value
$15M
100,000 shares
Holdings after
523,478
-17% from before
From 52-week low
+179%
low $53.75, close $150.00
From 52-week high
0%
high $150.00, as of Aug 10, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $14.9M at market
    +25
  • Share of holdings sold
    Sold 17% of holdings
    +5
  • Cluster
    No other insider selling within 14 days
    0
  • 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.

PTGXOct 12, 2026 · close 144.88
Since filing Aug 12, 2026: -4.7%SPY +1.0% · excess -5.7%

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 0001104659-26-095111, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 10, 2026MOption exercise
Common Stock10b5-1
+65,761$21.58$1.4M589,239Aug 12, 2026
Aug 10, 2026SOpen-market sale
Common Stock10b5-1
-65,761$149.11$9.8M523,478Aug 12, 2026
Aug 11, 2026MOption exercise
Common Stock10b5-1
+34,239$21.58$739k557,717Aug 12, 2026
Aug 11, 2026SOpen-market sale
Common Stock10b5-1
-34,239$148.52$5.1M523,478Aug 12, 2026
Aug 10, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-65,761$0.00$0159,239Aug 12, 2026
Aug 11, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-34,239$0.00$0125,000Aug 12, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
22Weak
PTGXsell10b5-1
Protagonist Therapeutics, Inc
Asif Ali
Chief Financial Officer
$8.3M
58,629 shares
-50%
20Weak
PTGXsell10b5-1
Protagonist Therapeutics, Inc
Dinesh Ph D Patel V
President and CEO
$18M
125,000 shares
-22%
25Weak
PTGXsell10b5-1
Protagonist Therapeutics, Inc
William D. Waddill
director
$1.1M
9,000 shares
-53%
25Weak
PTGXsell10b5-1
Protagonist Therapeutics, Inc
William D. Waddill
director
$969k
9,000 shares
-53%
24Weak
PTGXsell10b5-1
Protagonist Therapeutics, Inc
William D. Waddill
director
$897k
9,000 shares
-53%
28Weak
PTGXsell 210b5-1
Protagonist Therapeutics, Inc
Dinesh Ph D Patel V
President and CEO
$7.5M
75,000 shares
-13%
48Moderate
PTGXsell 2
Protagonist Therapeutics, Inc
Dinesh Ph D Patel V
President and CEO
$7.5M
75,000 shares
-13%
53Moderate
PTGXsell 2
Protagonist Therapeutics, Inc
Bryan Giraudo
director
$5.9M
59,130 shares
-93%
34Weak
PTGXsell
Protagonist Therapeutics, Inc
Asif Ali
Chief Financial Officer
$185k
1,750 shares
-3%
57Moderate
PTGXsell 4
Protagonist Therapeutics, Inc
Asif Ali
Chief Financial Officer
$2.6M
24,765 shares
-29%

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.

Dinesh Ph D Patel V sold $15M of PTGX | InsiderTell