Janus Henderson Group plc 13D and 13G filings for PTC Therapeutics, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-05-15 12:39 pm Purchase | 2026-03-31 | 13G | PTC THERAPEUTICS INC PTCT | JANUS HENDERSON GROUP Ltd. JHG | 7,193,433 8.700% | 2,342,101 (+48.28%) | Filing |
| 2026-02-17 12:42 pm Purchase | 2025-12-31 | 13G | PTC THERAPEUTICS INC PTCT | JANUS HENDERSON GROUP Ltd. JHG | 4,851,332 6.000% | 2,824,190 (+139.32%) | Filing |
| 2023-02-09 11:49 am Sale | 2022-12-31 | 13G | PTC THERAPEUTICS INC PTCT | JANUS HENDERSON GROUP Ltd. JHG | 2,027,142 2.800% | -1,874,255 (-48.04%) | Filing |
| 2022-02-11 3:08 pm Purchase | 2021-12-31 | 13G | PTC THERAPEUTICS INC PTCT | JANUS HENDERSON GROUP Ltd. JHG | 3,901,397 5.500% | 3,901,397 (New Position) | Filing |