MBB Institutional Ownership Changes & 13F Activity
ISHARES MBS ETF (MBB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Sequoia Financial Advisors, Renaissance Technologies LLC, Parnassus Endeavor Fund, and Torray Fund.
Related MBB Institutional Insights
- MBB Institutional Ownership Overview
- MBB Top Institutional Shareholders
- MBB Institutional Buying Activity
- MBB Institutional Selling Activity
- MBB Institutional Ownership Trend
- Institutional Portfolio Overlap & Shared Holdings
- MBB Insider Trading & SEC Form 4 Activity
- Top Institutional Investor Stock Rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2020 | Sequoia Financial Advisors | Buy | 1,261 | 30,230 | $3,329 |
| Q3 2020 | Renaissance Technologies LLC | Buy | 62,000 | 121,100 | $13,369 |
| Q3 2020 | Sequoia Financial Advisors | Buy | 28,969 | 28,969 | $3,198 |
| Q2 2020 | Sequoia Financial Advisors | Sell | -25,386 | 0 | $3,044 |
| Q2 2020 | Renaissance Technologies LLC | Buy | 21,100 | 59,100 | $6,542 |
| Q1 2020 | Renaissance Technologies LLC | Sell | -71,845 | 38,000 | $4,197 |
| Q1 2020 | Sequoia Financial Advisors | Buy | 819 | 25,386 | $2,804 |
| Q4 2019 | Renaissance Technologies LLC | Buy | 37,517 | 109,845 | $11,870 |
| Q4 2019 | Sequoia Financial Advisors | Buy | 4,480 | 24,567 | $2,655 |
| Q3 2019 | Renaissance Technologies LLC | Sell | -20,272 | 72,328 | $7,833 |
| Q3 2019 | Sequoia Financial Advisors | Buy | 4,117 | 20,087 | $2,175 |
| Q2 2019 | Renaissance Technologies LLC | Buy | 71,332 | 92,600 | $9,964 |
| Q2 2019 | Sequoia Financial Advisors | Buy | 9,176 | 15,970 | $1,718 |
| Q1 2019 | Sequoia Financial Advisors | Buy | 3,464 | 6,794 | $723 |
| Q4 2018 | Sequoia Financial Advisors | Buy | 179 | 3,330 | $348 |
| Q3 2018 | Sequoia Financial Advisors | Sell | -178 | 3,151 | $326 |
| Q2 2018 | Sequoia Financial Advisors | Buy | 1,055 | 3,329 | $347 |
| Q1 2018 | Renaissance Technologies LLC | Buy | 21,268 | 21,268 | $2,225 |
| Q1 2018 | Sequoia Financial Advisors | Buy | 133 | 2,274 | $238 |
| Q4 2017 | Sequoia Financial Advisors | Sell | -3,636 | 2,141 | $228 |
| Q2 2016 | Sequoia Financial Advisors | Buy | 5,145 | 5,777 | $635 |
| Q1 2016 | Sequoia Financial Advisors | Buy | 632 | 632 | $5,777 |
Frequently asked questions about MBB activity
Which institutional owners are buying MBB?
Institutional owners buying MBB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MBB activity?
"Buy" means an investor increased their reported position in MBB compared to the prior reporting period. This reflects growing exposure to ISHARES MBS ETF (MBB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MBB increasing?
Institutional interest in MBB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.