Live feed
Filing
SCHEDULE 13G/A
SCHEDULE 13G/A0002100121-26-001118·VANGUARD PORTFOLIO MANAGEMENT LLC
Schedule 13G ownership disclosure
MERCURY COMPUTER SYSTEMS INC
Common Stock · CUSIP: 589378108
Event date: 2026-09-30
- Filing-level shares
- 3,038,957
- Percent of class
- 4.99%
- Vanguard Portfolio Management
Shares: 3,038,957 · Class: 4.99%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0002100121-26-001118
- Form type
- SCHEDULE 13G/A
- Filer
- VANGUARD PORTFOLIO MANAGEMENT LLC
- CIK
- CIK 2100121
- Filed
- Oct 30, 2026
- Reporting period
- Sep 30, 2026
- Description
- Schedule 13G beneficial ownership