Quick answer
ARCH CAPITAL GROUP LTD. (ACGL) disclosed a 3-for-1 stock split in SEC filings (first reported in a 10-Q filed 2018-08-08, period ending 2018-06-18).
Data as of 2018-08-08. Source: SEC EDGAR XBRL filings
| Period end | Split ratio | Form | Filed |
|---|---|---|---|
| 2018-06-18 | 3-for-1 | 10-Q | 2018-08-08 |
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Last updated 2026-10-16. Data only, not financial or tax advice.