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sellWeak cluster of 310b5-1 plan

Eric Pauwels sold $1.6M of PTCT

CHIEF BUSINESS OFFICER at PTC THERAPEUTICS, INC.. 20,508 shares at an average of $77.26, traded Dec 19, 2025, filed Dec 23, 2025.

Warning score
30
Value
$1.6M
20,508 shares
Holdings after
70,373
-29% from before
From 52-week low
+117%
low $36.19, close $78.57
From 52-week high
-9%
high $86.25, as of Dec 19, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $1.6M at market
    +25
  • Share of holdings sold
    Sold 29% of holdings
    +10
  • Cluster
    3 insiders selling within 14 days
    +15
  • 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.

This signal so far: 1m -2.0%, 3m -16.9%, 6m +5.7%.

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 13, 2026 · close 59.92
Since filing Dec 23, 2025: -22.9%SPY +14.0% · excess -36.9%

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 0001323212-25-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 19, 2025MOption exercise
Common Stock10b5-1
+138$66.49$9,17670,511Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-37$75.66$2,79970,474Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-42$77.26$3,24570,432Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-59$78.01$4,60370,373Dec 23, 2025
Dec 19, 2025MOption exercise
Common Stock10b5-1
+565$18.01$10k70,938Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-193$75.45$15k70,745Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-313$77.73$24k70,432Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-59$78.43$4,62770,373Dec 23, 2025
Dec 19, 2025MOption exercise
Common Stock10b5-1
+19,805$66.49$1.3M90,178Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-1,500$75.77$114k88,678Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-4,537$76.33$346k84,141Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-10,548$77.55$818k73,593Dec 23, 2025
Dec 19, 2025SOpen-market sale
Common Stock10b5-1
-3,220$78.33$252k70,373Dec 23, 2025
Dec 19, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-138$0.00$019,805Dec 23, 2025
Dec 19, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-565$0.00$017,566Dec 23, 2025
Dec 19, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-19,805$0.00$00Dec 23, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 20, 2026
PTCTsell 310b5-1
PTC THERAPEUTICS, INC.
Mark Elliott Boulding
EXEC. VP AND CLO
$12k
192 shares
-0%
Pro nowfree Oct 16, 2026
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
PTCTsell 210b5-1
PTC THERAPEUTICS, INC.
Michael Schmertzler
director
$1.8M
25,000 shares
-2%
28Weak
PTCTsell 210b5-1
PTC THERAPEUTICS, INC.
Michael Schmertzler
director
$1.8M
25,000 shares
-2%
7Weak
PTCTsell 310b5-1
PTC THERAPEUTICS, INC.
Mark Elliott Boulding
EXEC. VP AND CLO
$204k
2,813 shares
-3%
34Weak
PTCTsell 210b5-1
PTC THERAPEUTICS, INC.
Matthew B. Klein
CHIEF EXECUTIVE OFFICER
$706k
10,292 shares
-3%

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 $1.6M of PTCT | InsiderTell