Which hedge funds own PTCT? PTC THERAPEUTICS INC, Q2 2026 13F holders
50 tracked hedge funds disclosed a position in PTCT (PTC THERAPEUTICS INC) in their Q2 2026 13F filings, worth $1.5bn in total. The largest holder by portfolio weight is Palo Alto Investors LP at 10.4% of its book. 18 opened a new position this quarter: Capricorn Fund Managers Ltd, Morgan Creek Capital Management, LLC, Fox Run Management, L.L.C., Landscape Capital Management, L.L.C.. 5 exited: Ishara Investments LP, Ares Systematic Credit Ltd, Woodline Partners LP.
- 50
- Holders Tracked managers whose filing for the quarter reports a long equity position in the security.
- 18
- New this quarter Holders whose previous filing (at most two quarters earlier) did not report the security.
- 5
- Exited this quarter Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
- $26.3m
- Inflow, new holders Combined value of the positions the new holders reported for the quarter.
- $53.2m
- Outflow, exits Combined value the exiting managers reported for the security in their previous filing.
- $1.5bn
- Combined value Sum of the holders' reported positions in the security.
- 4.0%
- Share of managers holding Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.
Holders, Q2 2026
Exited since the previous filing
| Ishara Investments LP | 0.7% | $698k |
| Ares Systematic Credit Ltd | 0.3% | $407k |
| Woodline Partners LP | 0.2% | $50.8m |
| Catalyst Funds Management Pty Ltd | 0.1% | $763k |
| Edgestream Partners, L.P. | 0.02% | $566k |
Ownership over time
Who discovered PTCT first? Beta
The run: Q1 2017 → Q4 2020, +520%
| RTW Investments, LP high conviction | Q4 2016 | 3.4% | +19.5 pts |
| Great Point Partners LLC high conviction | Q1 2017 | 3.2% | +10.9 pts |
| J. Goldman & Co LP | Q1 2017 | 1.2% | +1.0 pts |
Split-adjusted quarter-end prices, excluding dividends. They describe the stock while each manager held it, not the return it earned.