Skip to content
sellWeak cluster of 210b5-1 plan

Eric Pauwels sold $3.3M of PTCT

CHIEF BUSINESS OFFICER at PTC THERAPEUTICS, INC.. 43,492 shares at an average of $75.40, traded Dec 17, 2025, filed Dec 19, 2025.

Warning score
33
Value
$3.3M
43,492 shares
Holdings after
70,373
-59% from before
From 52-week low
+107%
low $36.19, close $74.94
From 52-week high
-13%
high $86.25, as of Dec 17, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $3.3M at market
    +25
  • Share of holdings sold
    Sold 59% 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
  • 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.

PTCTOct 9, 2026 · close 64.70
Since filing Dec 19, 2025: -17.7%SPY +15.3% · excess -32.9%

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 0001323212-25-000003, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 17, 2025MOption exercise
Common Stock10b5-1
+1,245$66.49$83k74,157Dec 19, 2025
Dec 17, 2025SOpen-market sale
Common Stock10b5-1
-1,245$75.28$94k72,912Dec 19, 2025
Dec 17, 2025MOption exercise
Common Stock10b5-1
+3,684$18.01$66k74,157Dec 19, 2025
Dec 17, 2025SOpen-market sale
Common Stock10b5-1
-3,584$75.31$270k70,473Dec 19, 2025
Dec 17, 2025SOpen-market sale
Common Stock10b5-1
-100$76.00$7,60070,373Dec 19, 2025
Dec 17, 2025MOption exercise
Common Stock10b5-1
+35,361$66.49$2.4M105,734Dec 19, 2025
Dec 17, 2025SOpen-market sale
Common Stock10b5-1
-35,261$75.44$2.7M70,473Dec 19, 2025
Dec 17, 2025SOpen-market sale
Common Stock10b5-1
-100$76.00$7,60070,373Dec 19, 2025
Dec 18, 2025MOption exercise
Common Stock10b5-1
+120$66.49$7,97970,493Dec 19, 2025
Dec 18, 2025SOpen-market sale
Common Stock10b5-1
-120$75.02$9,00270,373Dec 19, 2025
Dec 18, 2025MOption exercise
Common Stock10b5-1
+251$18.01$4,52170,624Dec 19, 2025
Dec 18, 2025SOpen-market sale
Common Stock10b5-1
-251$75.00$19k70,373Dec 19, 2025
Dec 18, 2025MOption exercise
Common Stock10b5-1
+2,831$66.49$188k73,204Dec 19, 2025
Dec 18, 2025SOpen-market sale
Common Stock10b5-1
-2,831$75.07$213k70,373Dec 19, 2025
Dec 17, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-36,606$0.00$022,894Dec 19, 2025
Dec 17, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-3,684$0.00$018,382Dec 19, 2025
Dec 18, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-2,951$0.00$019,943Dec 19, 2025
Dec 18, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-251$0.00$018,131Dec 19, 2025

Related signals

Other insiders at PTC THERAPEUTICS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
21Weak
PTCTsell 310b5-1
PTC THERAPEUTICS, INC.
Michael Schmertzler
director
$158k
2,500 shares
-0%
6Weak
PTCTsell 310b5-1
PTC THERAPEUTICS, INC.
Mark Elliott Boulding
EXEC. VP AND CLO
$133k
2,073 shares
-2%
27Weak
PTCTsell 310b5-1
PTC THERAPEUTICS, INC.
Glenn Steele Jr Md Phd
director
$782k
12,000 shares
-35%
28Weak
PTCTsell 210b5-1
PTC THERAPEUTICS, INC.
Michael Schmertzler
director
$1.3M
20,000 shares
-2%
20Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Michael Schmertzler
director
$1.4M
20,000 shares
-1%
28Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Neil Gregory Almstead
CHIEF TECHNICAL OPS OFFICER
$253k
3,989 shares
-59%
7Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Neil Gregory Almstead
CHIEF TECHNICAL OPS OFFICER
$216k
3,121 shares
-3%
3Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Neil Gregory Almstead
CHIEF TECHNICAL OPS OFFICER
$72k
940 shares
-1%
7Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Neil Gregory Almstead
CHIEF TECHNICAL OPS OFFICER
$186k
2,411 shares
-2%
15Weak
PTCTsell10b5-1
PTC THERAPEUTICS, INC.
Eric Pauwels
CHIEF BUSINESS OFFICER
$1.6M
20,508 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.

Eric Pauwels sold $3.3M of PTCT | InsiderTell