MBB Institutional Ownership Trend

Institutional ownership trends for ISHARES MBS ETF provide insight into how hedge funds, mutual funds, pension managers, and long-term asset managers have adjusted exposure to the company across multiple SEC Form 13F reporting periods.

Institutional investors tracked by InsiderSet collectively reported approximately $4.95M in MBB holdings for the quarter ended March 31, 2026, compared with approximately $798,515 reported during the prior quarter. The number of tracked institutional holders also increased during the latest reporting period, reflecting continued smart money interest in ISHARES MBS ETF.

This page tracks historical institutional ownership trends for MBB, including:

• total institutional holders by quarter
• aggregate reported value
• estimated live portfolio value
• ownership concentration changes
• largest ownership increases and reductions
• long-term smart money positioning trends

Institutional ownership trend analysis can help investors evaluate accumulation patterns, investor conviction, sector leadership, and portfolio concentration changes across major investment firms investing in ISHARES MBS ETF.