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sellModerate cluster of 410b5-1 plan

Neil Gregory Almstead sold $4.1M of PTCT

CHIEF TECHNICAL OPS OFFICER at PTC THERAPEUTICS, INC.. 46,774 shares at an average of $87.52, traded Jul 6, 2026, filed Jul 8, 2026.

Warning score
40
Value
$4.1M
46,774 shares
Holdings after
60,299
-77% from before
From 52-week low
+97%
low $43.30, close $85.44
From 52-week high
-1%
high $86.25, as of Jul 6, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $4.1M at market
    +25
  • Share of holdings sold
    Sold 77% of holdings
    +20
  • Cluster
    4 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.

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 Jul 8, 2026: -27.0%SPY +4.6% · excess -31.6%

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 0001578850-26-000021, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 6, 2026MOption exercise
Common Stock10b5-1
+811$38.10$31k61,110Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stock10b5-1
-426$85.28$36k60,684Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stock10b5-1
-385$86.34$33k60,299Jul 8, 2026
Jul 6, 2026MOption exercise
Common Stock10b5-1
+18,876$38.10$719k79,175Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stock10b5-1
-8,786$85.35$750k70,389Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stock10b5-1
-10,090$86.32$871k60,299Jul 8, 2026
Jul 6, 2026MOption exercise
Common Stock10b5-1
+2,474$39.42$98k62,773Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stock10b5-1
-2,474$87.03$215k60,299Jul 8, 2026
Jul 7, 2026MOption exercise
Common Stock10b5-1
+24,613$39.42$970k84,912Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stock10b5-1
-3,956$87.17$345k80,956Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stock10b5-1
-11,369$89.03$1.0M69,587Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stock10b5-1
-9,288$89.44$831k60,299Jul 8, 2026
Jul 6, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-811$0.00$018,876Jul 8, 2026
Jul 6, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-18,876$0.00$00Jul 8, 2026
Jul 6, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-2,474$0.00$033,676Jul 8, 2026
Jul 7, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-24,613$0.00$09,063Jul 8, 2026

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
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%
31Weak
PTCTsell 410b5-1
PTC THERAPEUTICS, INC.
Pierre Gravier
CHIEF FINANCIAL OFFICER
$281k
3,494 shares
-4%

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.

Neil Gregory Almstead sold $4.1M of PTCT | InsiderTell