The Vanguard Group 13D and 13G filings for Alexion Pharmaceuticals, 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 |
| 2021-02-10 10:30 am Purchase | 2020-12-31 | 13G | Alexion Pharmaceuticals, Inc. ALXN | The Vanguard Group | 19,406,768 8.870% | 2,642,351 (+15.76%) | Filing |