iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionAdvisory Alpha, LLC
Latest Disclosed Ownership3,777 shares
Latest Disclosed Value $ 358,626
Advisory Alpha, LLC reports 2.39% increase in ownership of MBB / iShares Trust - iShares MBS ETF

On May 14, 2026 - Advisory Alpha, LLC filed a 13F-HR form disclosing ownership of 3,777 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $358,626 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 3,689 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of 2.39% during the quarter. The current value of the position is $355,831 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ISHARES TR MBS ETF 464288588 3,777 88 2.39 359 1.99 0.0098
2026-02-06 2025-12-31 13F ISHARES TR MBS ETF 464288588 3,689 -154 -4.01 351 -4.10 0.0096
2025-11-12 2025-09-30 13F ISHARES TR MBS ETF 464288588 3,843 6 0.16 366 1.67 0.0102
2025-08-01 2025-06-30 13F ISHARES TR MBS ETF 464288588 3,837 -151 -3.79 360 -3.74 0.0112
2025-05-19 2025-03-31 13F/A-1 ISHARES TR MBS ETF 464288588 3,988 -1,917 -32.46 374 -30.87 0.0127
2025-04-08 2025-03-31 13F ISHARES TR MBS ETF 464288588 4,017 -1,888 377 0.0234
2025-01-17 2024-12-31 13F ISHARES TR MBS ETF 464288588 5,905 -12 -0.20 541 -4.42 0.0193
2024-11-12 2024-09-30 13F ISHARES TR MBS ETF 464288588 5,917 0 0.00 567 4.24 0.0201
2024-08-21 2024-06-30 13F ISHARES TR MBS ETF 464288588 5,917 -467 -7.32 543 -7.97 0.0214
2024-05-06 2024-03-31 13F ISHARES TR MBS ETF 464288588 6,384 -346 -5.14 590 -6.79 0.0242
2024-01-23 2023-12-31 13F ISHARES TR MBS ETF 464288588 6,730 -1,328 -16.48 633 -11.47 0.0290
2023-10-18 2023-09-30 13F ISHARES TR MBS ETF 464288588 8,058 -1,367 -14.50 716 -18.66 0.0368
2023-07-25 2023-06-30 13F ISHARES TR MBS ETF 464288588 9,425 9,425 879 0.0451
2018-11-13 2018-09-30 13F ISHARES TR BARCLYS MBS BD 464288588 0 0 0 0.0000
2018-08-13 2018-06-30 13F ISHARES TR BARCLYS MBS BD 464288588 0 0 0 0.0000
2017-02-15 2016-12-31 13F ISHARES TR BARCLYS MBS BD 464288588 0 -64 -100.00 0 -100.00
2016-10-14 2016-09-30 13F ISHARES TR BARCLYS MBS BD 464288588 64 0 0.00 7 0.00 0.0029
2016-08-05 2016-06-30 13F ISHARES TR BARCLYS MBS BD 464288588 64 0 0.00 7 0.00 0.0032
2016-05-04 2016-03-31 13F ISHARES TR BARCLYS MBS BD 464288588 64 -23 -26.44 7 -22.22 0.0037
2016-02-05 2015-12-31 13F/A-1 ISHARES TR BARCLYS MBS BD 464288588 87 0 0.00 9 -10.00 0.0052
2016-02-04 2015-12-31 13F ISHARES TR BARCLYS MBS BD 464288588 87 -81,106 9 0.0056
2015-10-30 2015-09-30 13F ISHARES TR BARCLYS MBS BD 464288588 87 87 -99.89 10 -99.89 0.0068
2015-07-31 2015-06-30 13F ISHARES TR BARCLYS MBS BD 464288588 0 -698 -100.00 0 -100.00
2015-04-29 2015-03-31 13F ISHARES TR BARCLYS MBS BD 464288588 698 -74,726 -99.07 77 -99.07 0.0500
2015-02-13 2014-12-31 13F ISHARES TR BARCLYS MBS BD 464288588 75,424 -5,769 -7.11 8,245 -6.05 5.7611
2014-11-07 2014-09-30 13F/A-1 ISHARES TR BARCLYS MBS BD 464288588 81,193 3,206 4.11 8,776 3.98 5.8245
2014-11-07 2014-09-30 13F ISHARES TR BARCLYS MBS BD 464288588 7,598,011 1,259
2014-08-15 2014-06-30 13F ISHARES TR BARCLYS MBS BD 464288588 77,987 -1,468 -1.85 8,440 0.09 5.7491
2014-05-14 2014-03-31 13F ISHARES TR BARCLYS MBS BD 464288588 79,455 -10,534 -11.71 8,432 -10.39 5.8749
2014-02-14 2013-12-31 13F ISHARES TR BARCLYS MBS BD 464288588 89,989 89,989 9,410 6.7428
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.