Ishares Mbs ETF
$93.58-0.2%
+$1.0B
Net Activity
+1.17% total shares
Institutions Holding
1028
Popularity Rank
#459
Avg Weight
0.50%
Total Value
$35.1B
1028 institutions currently hold MBB, with 642 net buyers and 333 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
333
Net Buying Institutions
642
Top 5 by Value
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Across its top 20 institutional holders, MBB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 8/100, avg. turnover score 20/100).
MBB ranks #459 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
MBB is a top-conviction position for Midland Wealth Advisors, LLC — at 11.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in MBB belongs to Bank Of America CORP /de/, but the position matters far more to Midland Wealth Advisors, LLC, who has 11.2% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Envestnet Asset Management Inc has added to its MBB position for two straight quarters, increasing it by $440.3M to reach $2.9B today.
Tiaa Trust, National Association has trimmed its MBB position for two straight quarters, cutting it by $2.5B while still holding $23.1M.
MBB is down 0.2% today, but institutions show net buying of $1.0B this quarter — a divergence between today's price move and the underlying institutional flow.
+$2.1B
Total Buy Value
$1.3B
Total Sell Value
642
Net Buyers
333
Net Sellers
MBB
Q2 2026
Top 5 Institutional Movers
-$325.1M
+$177.2M
+$165.7M
-$164.2M
+$133.5M
MBB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Buy | John Boozman Senate | 2026-05-27 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-05-13 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-05-13 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-02-06 | $1K–$15K |
| Buy | John Boozman Senate | 2026-01-23 | $1K–$15K |
| Buy | John Boozman Senate | 2025-11-21 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2025-09-16 | $1K–$15K |
| Buy | John Boozman Senate | 2025-08-01 | $1K–$15K |
No Form 144 planned sale filings in the last 90 days
No Schedule 13D/13G filings for this ticker
No Form 8-K filings for this ticker
464288588
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,923
Total reported value
$485.0B
Held by 4923 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,839
Total reported value
$1.5T
Held by 4839 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,763
Total reported value
$1.2T
Held by 4763 institutions — one of the most-tracked stocks on AlphaSMO
Access MBB's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/MBBCLI
npx alphasmo stocks get MBB