Mark Elliott Boulding sold $408K of PTC Therapeutics (PTCT)

Executed Feb 17, disclosed Feb 19, 2 days later.

Value, as filed

$408K

5,892 sh across 2 lots

Executed

Feb 17

the trade date, as filed

Disclosed

Feb 19

2 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

Mark Elliott Boulding EXEC. VP AND CLO profile →

Mark Elliott Boulding (EXEC. VP AND CLO) filed 12 Form 4 reports in the trailing twelve months (0 purchases, 12 sales), most often in PTC Therapeutics, Inc. (PTCT). The largest single filing was $1.3M of PTCT (20,390 sh across 5 lots, as filed), executed Oct 3 2025.

The name

PTCT

PTC Therapeutics, Inc. PTCT · Healthcare · 80 filings in 24 months ticker →

Healthcare · PTC Therapeutics, Inc., a biopharmaceutical company, focuses on the discovery, development, and commercialization of medicines to children…

More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by Mark Elliott Boulding in PTCT

PTCTSALE PTC Therapeutics, Inc. $133K
1,844 sh × $72.39
Exec Aug 17
Filed Aug 19 · 5:20 PM ET PTCTSALE PTC Therapeutics, Inc. $798K
10,153 sh across 3 lots
Exec Jun 17
Filed Jun 22 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $170K
2,356 sh × $72.08
Exec May 15
Filed May 19 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $151K
1,900 sh × $79.31
Exec May 8
Filed May 12 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $101K
1,443 sh × $69.75
Exec Apr 6
Filed Apr 8 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $114K
1,629 sh × $69.82
Exec Feb 19
Filed Feb 23 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $308K
4,003 sh across 2 lots
Exec Jan 8
Filed Jan 12 · 5:30 PM ET PTCTSALE PTC Therapeutics, Inc. $377K
4,880 sh across 3 lots
Exec Jan 6
Filed Jan 8 · 5:30 PM ET