Activist & passive stakes
Investors crossing the 5% ownership line, from SEC Schedule 13D (activist) and 13G (passive) filings. Newest first.
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All filings, new and amended.1–3 of 3
- PassiveAmendment 1Nov 6, 2026T. Rowe Price Investment Management, Inc.10.3% · 9,996,124 shSEC
- PassiveAmendment 18Nov 6, 2026Primecap Management Co/Ca/13.29% · 9,879,855 shSEC
- PassiveAmendment 9Nov 5, 2026Fmr Llc11.5% · 11,136,649 shSEC
| Filing | Symbol | Holder | % Owned | Shares | Filed | SEC filing |
|---|---|---|---|---|---|---|
PassiveAmendment 1 | XENE | T. Rowe Price Investment Management, Inc. in Xenon Pharmaceuticals Inc | 10.3% | 9,996,124 | Nov 6, 2026 | SEC |
PassiveAmendment 18 | XNCR | Primecap Management Co/Ca/ in Xencor Inc | 13.29% | 9,879,855 | Nov 6, 2026 | SEC |
PassiveAmendment 9 | XENE | Fmr Llc in Xenon Pharmaceuticals Inc | 11.5% | 11,136,649 | Nov 5, 2026 | SEC |