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PTCT — PTC THERAPEUTICS, INC.

Materials · Pharmaceutical Preparations · Nasdaq

CIK 0001070081 · FYE 1231 · All Form 4 filings on EDGAR ↗

Formerly: PTC THERAPEUTICS INC (until 2005-10-12)

1Insiders filing

5Transactions

+$0Reported buys

−$1.8MReported sells

0Cluster events

Window in data: 2026-08-19 → 2026-08-20 · Data as of 2026-08-28

Insiders

Insider	Role	Txns	Reported value
SCHMERTZLER MICHAEL	Director	5	$1.8M

Transaction history

Filing date	Trade date	Ticker	Insider	Type	Shares	Price	Value	Cluster
2026-08-21	2026-08-20	PTCT	SCHMERTZLER MICHAEL Director 10b5-1	S	9,419	$70.78	−$667k	—
2026-08-21	2026-08-20	PTCT	SCHMERTZLER MICHAEL Director 10b5-1	S	2,390	$71.88	−$172k	—
2026-08-21	2026-08-20	PTCT	SCHMERTZLER MICHAEL Director 10b5-1	S	691	$72.92	−$50k	—
2026-08-21	2026-08-19	PTCT	SCHMERTZLER MICHAEL Director 10b5-1	S	5,335	$72.86	−$389k	—
2026-08-21	2026-08-19	PTCT	SCHMERTZLER MICHAEL Director 10b5-1	S	7,165	$73.67	−$528k	—

Known data limitations

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

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