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Insider

Matthew B. Klein

Director

Matthew B. Klein (Director) filed 10 Form 4 reports in the trailing twelve months (0 purchases, 10 sales), most often in PTC Therapeutics, Inc. (PTCT). The largest single filing was $868K of PTCT (11,893 sh across 3 lots, as filed), executed May 14.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
10
0 buys · 10 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$4.4M
shares × price, as filed
Last traded
Aug 4
Filed Aug 6

Median ADV $125.1M across their filed names

Open performance
Volume by month
$1.4M$721K$0Oct 2024Apr 2025Oct 2025Apr 2026Jan 2025 · sells $481KFeb 2025 · sells $390KApr 2025 · sells $137KAug 2025 · sells $556KDec 2025 · sells $271KJan 2026 · sells $1.4MFeb 2026 · sells $511KMar 2026 · sells $171KApr 2026 · sells $202KMay 2026 · sells $1.1MAug 2026 · sells $706K
Buys $0 Sells $5.9M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 10 filings

Sector per market data · by filing · past 12 months

Most traded names
PTCT PTC Therapeutics, Inc. PTCT · 0 buys · 14 sells 14 filings CLPT ClearPoint Neuro, Inc. CLPT · 0 buys · 1 sell 1 filing
Recent filings
PTCTSALE PTC Therapeutics, Inc. View filing → $620K
8,089 sh × $76.64
Exec Dec 30 2025
Filed Jan 2 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $271K
3,428 sh × $79.07
Exec Dec 2 2025
Filed Dec 3 2025 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $556K
10,739 sh × $51.74
Exec Aug 5 2025
Filed Aug 5 2025 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $137K
2,804 sh × $48.74
Exec Apr 22 2025
Filed Apr 24 2025 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $390K
7,792 sh across 2 lots
Exec Feb 19 2025
Filed Feb 21 2025 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $107K
2,402 sh × $44.50
Exec Jan 8 2025
Filed Jan 10 2025 · 5:30 PM ET
PTCTSALE PTC Therapeutics, Inc. View filing → $374K
8,279 sh × $45.16
Exec Dec 31 2024
Filed Jan 3 2025 · 5:30 PM ET