Rubric Capital Management LP 13D and 13G filings for Zymeworks 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 4:09 pm Purchase | 2026-03-31 | 13G | ZYMEWORKS INC ZYME | Rubric Capital Management LP | 7,000,000 9.490% | 1,250,000 (+21.74%) | Filing |
| 2026-02-13 4:27 pm Purchase | 2025-12-31 | 13G | ZYMEWORKS INC ZYME | Rubric Capital Management LP | 5,750,000 7.680% | 1,832,669 (+46.78%) | Filing |
| 2024-11-13 4:30 pm Purchase | 2024-09-30 | 13G | ZYMEWORKS INC ZYME | Rubric Capital Management LP | 3,917,331 5.510% | 3,917,331 (New Position) | Filing |