Chuck Royce's PTCT Position Overview
Chuck Royce (via Royce & Associates Lp) currently holds 92,828 shares of PTC Therapeutics, Inc. (PTCT) worth $6.32 M, representing 0.06% of the portfolio. First purchased in 2014-Q2, this short-term holding has been held for 8 quarters.
Based on 13F filings, Chuck Royce has maintained this position in PTCT for several quarters, showing initial confidence in the investment. Largest addition occurred in Q2 2025, adding 50,237 shares. Largest reduction occurred in Q1 2015, reducing 50,000 shares.
Analysis based on 13F filings available since 2013 Q2
Chuck Royce's PTC Therapeutics (PTCT) Holding Value Over Time
Track share changes against reported price movement
Quarterly PTC Therapeutics (PTCT) Trades by Chuck Royce
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +12,034 | Add 14.89% | 92,828 | $68.13 |
| Q4 2025 | +48,015 | Add 146.48% | 80,794 | $75.96 |
| Q3 2025 | -17,458 | Reduce 34.75% | 32,779 | $61.37 |
| Q2 2025 | +50,237 | New Buy | 50,237 | $48.84 |
| Q1 2015 | -50,000 | Sold Out | 0 | $0.00 |
| Q2 2014 | +50,000 | New Buy | 50,000 | $26.14 |
Chuck Royce's PTC Therapeutics Investment FAQs
Chuck Royce first purchased PTC Therapeutics, Inc. (PTCT) in Q2 2014, acquiring 50,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Chuck Royce has held PTC Therapeutics, Inc. (PTCT) for 8 quarters since Q2 2014.
Chuck Royce's largest addition to PTC Therapeutics, Inc. (PTCT) was in Q2 2025, adding 50,237 shares worth $2.45 M.
According to the latest 13F filing for Q1 2026, Chuck Royce's firm, Royce & Associates Lp, owns 92,828 shares of PTC Therapeutics, Inc. (PTCT), valued at approximately $6.32 M.
As of the Q1 2026 filing, PTC Therapeutics, Inc. (PTCT) represents approximately 0.06% of Chuck Royce's publicly disclosed stock portfolio, making it one of their key holdings.
Chuck Royce's peak holding in PTC Therapeutics, Inc. (PTCT) was 92,828 shares, as reported at the end of Q1 2026.