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sellWeak cluster of 510b5-1 plan

Eric Pauwels sold $2.3M of PTCT

CHIEF BUSINESS OFFICER at PTC THERAPEUTICS, INC.. 39,850 shares at an average of $56.92, traded Sep 8, 2025, filed Sep 9, 2025.

Warning score
30
Value
$2.3M
39,850 shares
Holdings after
72,912
-44% from before
From 52-week low
+76%
low $32.27, close $56.95
From 52-week high
-2%
high $58.01, as of Sep 8, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $2.3M at market
    +25
  • Share of holdings sold
    Sold 44% of holdings
    +10
  • Cluster
    5 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 +13.0%, 3m +25.8%, 6m +17.4%.

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 Sep 9, 2025: +10.7%SPY +21.3% · excess -10.5%

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 0001415889-25-023986, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 8, 2025MOption exercise
Common Stock10b5-1
+16,698$30.86$515k89,610Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-16,698$56.94$951k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+6,017$11.23$68k78,929Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-6,017$56.91$342k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+8,528$18.01$154k81,440Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-8,528$56.92$485k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+3,713$30.86$115k76,625Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-3,713$56.92$211k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+2,406$11.23$27k75,318Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-2,406$56.92$137k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+1,238$11.32$14k74,150Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-1,238$56.85$70k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Common Stock10b5-1
+1,250$11.32$14k74,162Sep 9, 2025
Sep 8, 2025SOpen-market sale
Common Stock10b5-1
-1,250$56.86$71k72,912Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-16,698$0.00$03,713Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-6,017$0.00$02,406Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-8,528$0.00$00Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-3,713$0.00$00Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-2,406$0.00$00Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-1,238$0.00$01,250Sep 9, 2025
Sep 8, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-1,250$0.00$00Sep 9, 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%
Pro nowfree Oct 14, 2026
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 $2.3M of PTCT | InsiderTell