Klein Matthew B.
CHIEF EXECUTIVE OFFICER
Klein Matthew B. has filed 12 SEC Form 4 filings (19 transaction rows) across 2 companies, including PTCT, CLPT, with disclosures dating back to 2025. 12 of those filings fall inside the rolling window. Most recent filing: Aug 6, 2026.
On the most recent filing, Klein Matthew B. is listed as CHIEF EXECUTIVE OFFICER at PTC THERAPEUTICS, INC. Inside the rolling window, Klein Matthew B. reported no open-market purchases and 11 open-market sales totaling $4.4M in PTCT and CLPT. The largest disclosed transaction in the window is a sale of 12,572 PTCT shares on May 14, 2026, worth $917K.
Companies traded
Other insiders at PTCT
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$4.4M
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 10,292 | $706K | Aug 6 | SEC ↗ | |
| CLPT | Director | Sale | 16,000 | $185K | May 26 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 12,572 | $917K | May 15 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 2,850 | $202K | Apr 23 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 2,662 | $171K | Mar 13 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 7,371 | $511K | Feb 20 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 2,514 | $192K | Jan 12 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 5,149 | $396K | Jan 8 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 3,016 | $234K | Jan 8 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 8,089 | $620K | Jan 2 | SEC ↗ | |
| PTCT | CHIEF EXECUTIVE OFFICER | Sale | 3,428 | $271K | Dec 3 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Klein Matthew B. made?
Klein Matthew B. has filed 12 SEC Form 4 filings (19 transaction rows) across 2 companies, including PTCT, CLPT since 2025.
Which companies does Klein Matthew B. trade?
Klein Matthew B. has filed SEC Form 4 disclosures for 2 companies, including PTCT, CLPT.
When was Klein Matthew B.'s most recent SEC Form 4 filing?
Klein Matthew B.'s most recent SEC Form 4 filing on Tracefour is dated Aug 6, 2026.
What is Klein Matthew B.'s job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Klein Matthew B. is listed as CHIEF EXECUTIVE OFFICER.
What is Klein Matthew B.'s total buy and sell value in the current window?
Inside the rolling retention window, Klein Matthew B. bought $0 and sold $4.4M based on SEC Form 4 filings.
What was Klein Matthew B.'s largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 12,572 PTCT shares on 2026-05-14, worth $917K, per SEC Form 4 filings.