WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 13D and 13G filings for Mercury Systems, 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 |
| 2025-02-12 5:52 pm Sale | 2024-12-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 6,432,601 10.800% | -866,911 (-11.88%) | Filing |
| 2024-11-14 10:55 am Purchase | 2024-09-30 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 7,299,512 12.300% | 742,740 (+11.33%) | Filing |
| 2024-02-12 5:22 pm Sale | 2023-12-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 6,556,772 11.100% | -183,667 (-2.72%) | Filing |
| 2023-09-06 10:25 am Purchase | 2023-08-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 6,740,439 11.600% | 1,534,471 (+29.48%) | Filing |
| 2023-02-09 1:53 pm Purchase | 2022-12-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 5,205,968 9.000% | 1,888,146 (+56.91%) | Filing |
| 2022-02-09 6:54 pm Purchase | 2021-12-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3,317,822 5.900% | 68,258 (+2.10%) | Filing |
| 2021-02-11 3:13 pm Purchase | 2020-12-31 | 13G | Mercury Systems, Inc. MRCY | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3,249,564 5.800% | 3,249,564 (New Position) | Filing |