Quick answer
Xenon Pharmaceuticals Inc. (XENE) disclosed a 4.86-for-1 stock split in SEC filings (first reported in a 10-K filed 2015-03-12, period ending 2014-10-01).
Data as of 2015-03-12. Source: SEC EDGAR XBRL filings
| Period end | Split ratio | Form | Filed |
|---|---|---|---|
| 2014-10-01 | 4.86-for-1 | 10-K | 2015-03-12 |
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Last updated 2026-10-16. Data only, not financial or tax advice.