§ BIOTECHNOLOGY
USD · BiotechnologyPTCT
PTC THERAPEUTICS INC
USDSector · BiotechnologyBeta · 0.62
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
229 increased/new, 112 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 8.2 | P/B | 1877.27 |
| EPS (TTM) | 7.74 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 12.9M | 0.0% | +1% |
| RTW INVESTMENTS, LP | 7.7M | 5.3% | ±0% |
| JANUS HENDERSON GROUP PLC | 7.2M | n/a | +48% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.8M | n/a | n/a |
| State Street | 4.3M | 0.0% | +3% |
| WELLINGTON MANAGEMENT GROUP LLP | 3.9M | 0.1% | +2% |
◇ AC INTELLIGENCE
Top institutional owners for PTCT as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER54.9% · 241 holders
QUALITY / COMPOUNDER27.3% · 27 holders
PASSIVE / INDEX21.2% · 11 holders
DEALER / BANK19.1% · 34 holders
INCOME / DEFENSIVE3.2% · 25 holders
ACTIVIST2.0% · 1 holder
SYSTEMATIC / QUANT1.6% · 8 holders
TACTICAL / MACRO1.1% · 4 holders
DEEP VALUE0.8% · 1 holder
GROWTH / MOMENTUM0.1% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for PTCT in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention PTCT yet.