PTC THERAPEUTICS INC (PTCT) Institutional Ownership and Insiders Activity
PTC THERAPEUTICS INC (PTCT) is widely held by institutional investors, with 366 firms reporting positions valued at approximately $8.00B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is the largest disclosed holder, reporting approximately $1.14B in PTCT holdings in its latest filing.
Recent insider activity includes 50 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.
Institutional Holders
366
Total Reported Value
$8.00B
Largest Holder
Blackrock, Inc.
Largest Position
$1.14B
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
76
Funds Exiting Positions
56
Top Institutional Owners
View allInvestorReported Balance
- Blackrock, Inc.$1.14B
- Rtw Investments, Lp$631.88M
- Janus Henderson Group Plc$490.00M
- Vanguard Portfolio Management Llc$401.99M
- State Street Corp$375.14M
PTCT News
All news- Palo Alto Investors Q2 2026 Portfolio Changes: Major Buys and Minor Sells in Biotech Focus
Aug 22, 2026 · valut.ai
Related PTCT Institutional Insights:
- PTCT 13F Institutional Holders
- PTCT Top Institutional Shareholders
- PTCT Institutional Ownership Changes
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- PTCT Insider Trading & SEC Form 4 Activity
- PTCT Articles
- Top Institutional Investor Stock Rankings