Watch PTCT. Know when insiders buy.
One email the day a filing lands. Free.
Work order
42
WATCH · insiders 25, shorts 58
Insiders, 90 days
−$3.6M
net selling · 0 buys, 9 sells
Congress, 90 days
0 / 0
no disclosures naming it
Big money
2 / 15
tracked funds hold it
Calls on record
0
nobody we score has called it yet
MKT CAP $5.8BP/E —DIV YIELD —FCF YIELD -0.69%REV TTM $1B −42.8%NET INCOME −$38.4M −106.1%NET CASH $956.7M52W 56.95 – 89.55NEXT EARNINGS Nov 5SEC XBRL · TTM TO Invalid Date
Who holds it
| Fund | Type | Rank in portfolio | Value | Shares | As of |
|---|---|---|---|---|---|
| Renaissance Technologies | Guru | #279 | $59M | 724K | 2026-06-30 |
| PSP Investments | Pension | #257 | $23.2M | 285K | 2026-06-30 |
13F filings cover US-listed holdings and arrive up to 45 days after quarter end, so positions may have changed since.
Stakes of 5% or more
No 13D or 13G filing on PTCT in the last two years from the filings we read (13G only for companies we track; the sweep began Sep 2026).
A 13D means the holder crossed 5% with intent beyond passive ownership and had to state a purpose; a 13G is the passive version. Every new 13D on tracked companies.