Open-market SellNotable 56/100
filed 2026-10-09SMBoard
SCHMERTZLER MICHAEL - Director - $155.1K
Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale.
View source filingP
SEC EDGAR - Form 4 insider activity
Ptc Therapeutics, Inc. $PTCT
Tracked equity - 3 filings indexed by Nortis
Nortis signal thesis
Selling activity is leading recent insider flow. Review size, role and filing context.
0
OM buys - 90d
1
OM sells - 90d
2
Routine filings
0
Cluster filings
$155.1K
Largest trade
25/100
Avg signal score
Filing tape
Recent filings
Option ExerciseRoutine 10/100
filed 2026-10-07BEOfficer
Boulding Mark Elliott - EXEC. VP AND CLO - $64.6K
Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more.
View source filingOption ExerciseRoutine 10/100
filed 2026-10-02SPBoard
STEELE GLENN JR MD PHD - Director - $134.8K
Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more.
View source filing