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sellWeak10b5-1 plan

Dinesh Ph D Patel V sold $18M of PTGX

President and CEO at Protagonist Therapeutics, Inc. 125,000 shares at an average of $145.92, traded Sep 8, 2026, filed Sep 10, 2026.

Warning score
20
Value
$18M
125,000 shares
Holdings after
522,968
-22% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $18.2M at market
    +25
  • Share of holdings sold
    Sold 22% 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 Sep 10, 2026: -0.2%SPY +2.9% · excess -3.1%

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 0001104659-26-106831, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 8, 2026MOption exercise
Common Stock10b5-1
+54,174$21.58$1.2M577,14234 d ago
Sep 8, 2026SOpen-market sale
Common Stock10b5-1
-54,174$145.87$7.9M522,96834 d ago
Sep 9, 2026MOption exercise
Common Stock10b5-1
+63,548$21.58$1.4M586,51634 d ago
Sep 9, 2026SOpen-market sale
Common Stock10b5-1
-63,548$146.18$9.3M522,96834 d ago
Sep 10, 2026MOption exercise
Common Stock10b5-1
+7,278$21.58$157k530,24634 d ago
Sep 10, 2026SOpen-market sale
Common Stock10b5-1
-7,278$144.10$1.0M522,96834 d ago
Sep 8, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-54,174$0.00$070,82634 d ago
Sep 9, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-63,548$0.00$07,27834 d ago
Sep 10, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-7,278$0.00$0034 d ago

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
$15M
100,000 shares
-17%
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 $18M of PTGX | InsiderTell