Mark Elliott Boulding holds the role of EXEC. VP AND CLO at PTC THERAPEUTICS, INC. (PTCT). Boulding has reported 17 insider filings with the SEC since 2024. The most recent filing was in August 2026.
Every role Mark Elliott Boulding has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
PTC THERAPEUTICS, INC. (PTCT)3 filingsUpdated Aug 30, 2026
Mark Elliott Boulding is EXEC. VP AND CLO of PTC THERAPEUTICS, INC. (PTCT). 17 SEC Form 4 filings on record going back to 2024, most recently on 19 August 2026. Most recent open-market trade: sold $71K of PTCT on 19 August 2026. Lifetime open-market sales: $13.96M.
Every recent SEC Form 4 transaction Mark Elliott Boulding has reported, most recent first.
InsiderAlpha's records for Mark Elliott Boulding go back to 2024: 17 primary Form 4 filings, an average of 5.7 per year. 113 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Mark Elliott Boulding files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Mark Elliott Boulding is a corporate insider, tracked as EXEC. VP AND CLO of PTC THERAPEUTICS, INC. (PTCT). InsiderAlpha holds 17 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
3 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases and 77 open-market sales ($13.96M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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