Quick answer
Zai Lab Ltd (ZLAB) disclosed a 10-for-1 stock split in SEC filings (first reported in a 10-Q filed 2022-08-09, period ending 2022-03-30); 2 split ratios appear in its XBRL filings in total.
Data as of 2022-08-09. Source: SEC EDGAR XBRL filings
| Period end | Split ratio | Form | Filed |
|---|---|---|---|
| 2022-03-30 | 10-for-1 | 10-Q | 2022-08-09 |
| 2017-08-30 | 6-for-1 | 20-F | 2020-04-29 |
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Last updated 2026-10-16. Data only, not financial or tax advice.