Skip to content
sellWeak cluster of 410b5-1 plan

Neil Gregory Almstead sold $2.3M of PTCT

CHIEF TECHNICAL OPS OFFICER at PTC THERAPEUTICS, INC.. 26,283 shares at an average of $85.78, traded Jun 24, 2026, filed Jun 26, 2026.

Warning score
30
Value
$2.3M
26,283 shares
Holdings after
60,137
-43% from before
From 52-week low
+95%
low $43.30, close $84.41
From 52-week high
-2%
high $86.25, as of Jun 24, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $2.3M at market
    +25
  • Share of holdings sold
    Sold 43% of holdings
    +10
  • 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 Jun 26, 2026: -23.4%SPY +7.0% · excess -30.4%

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 0001578850-26-000017, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 24, 2026MOption exercise
Common Stock10b5-1
+401$38.10$15k60,538Jun 26, 2026
Jun 24, 2026SOpen-market sale
Common Stock10b5-1
-401$85.01$34k60,137Jun 26, 2026
Jun 24, 2026MOption exercise
Common Stock10b5-1
+4,922$38.10$188k65,059Jun 26, 2026
Jun 24, 2026SOpen-market sale
Common Stock10b5-1
-4,922$85.03$419k60,137Jun 26, 2026
Jun 25, 2026MOption exercise
Common Stock10b5-1
+1,001$38.10$38k61,138Jun 26, 2026
Jun 25, 2026SOpen-market sale
Common Stock10b5-1
-582$85.24$50k60,556Jun 26, 2026
Jun 25, 2026SOpen-market sale
Common Stock10b5-1
-419$86.39$36k60,137Jun 26, 2026
Jun 25, 2026MOption exercise
Common Stock10b5-1
+19,859$38.10$757k79,996Jun 26, 2026
Jun 25, 2026SOpen-market sale
Common Stock10b5-1
-8,522$85.26$727k71,474Jun 26, 2026
Jun 25, 2026SOpen-market sale
Common Stock10b5-1
-11,337$86.51$981k60,137Jun 26, 2026
Jun 25, 2026MOption exercise
Common Stock10b5-1
+100$39.42$3,94260,237Jun 26, 2026
Jun 25, 2026SOpen-market sale
Common Stock10b5-1
-100$87.00$8,70060,137Jun 26, 2026
Jun 24, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-401$0.00$053,599Jun 26, 2026
Jun 24, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-4,922$0.00$048,677Jun 26, 2026
Jun 25, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-1,001$0.00$047,676Jun 26, 2026
Jun 25, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-19,859$0.00$027,817Jun 26, 2026
Jun 25, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-100$0.00$036,150Jun 26, 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 $2.3M of PTCT | InsiderTell