iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionMA Private Wealth
Latest Disclosed Ownership24,024 shares
Latest Disclosed Value $ 2,281,079
MA Private Wealth reports 8.02% increase in ownership of MBB / iShares Trust - iShares MBS ETF

On May 7, 2026 - MA Private Wealth filed a 13F-HR form disclosing ownership of 24,024 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $2,281,079 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 22,240 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of 8.02% during the quarter. The current value of the position is $2,263,301 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)
2026-05-07 2026-03-31 13F ISHARES TR MBS ETF 464288588 24,024 1,784 8.02 2,281 7.75 0.3857
2026-02-03 2025-12-31 13F ISHARES TR MBS ETF 464288588 22,240 26 0.12 2,118 0.19 0.3533
2025-11-06 2025-09-30 13F ISHARES TR MBS ETF 464288588 22,214 0 0.00 2,114 1.34 0.3554
2025-07-24 2025-06-30 13F ISHARES TR MBS ETF 464288588 22,214 -1,075 -4.62 2,086 -4.53 0.3731
2025-05-01 2025-03-31 13F ISHARES TR MBS ETF 464288588 23,289 1,151 5.20 2,184 7.64 0.4108
2025-01-24 2024-12-31 13F ISHARES TR MBS ETF 464288588 22,138 1,942 9.62 2,030 4.91 0.3795
2024-10-23 2024-09-30 13F ISHARES TR MBS ETF 464288588 20,196 173 0.86 1,935 5.22 0.3617
2024-08-05 2024-06-30 13F ISHARES TR MBS ETF 464288588 20,023 -23,306 -53.79 1,838 -54.10 0.3636
2024-04-30 2024-03-31 13F ISHARES TR MBS ETF 464288588 43,329 37,807 684.66 4,004 671.48 0.8116
2024-02-13 2023-12-31 13F/A-1 ISHARES TR MBS ETF 464288588 5,522 -1,417 -20.42 520 -15.75 0.1107
2024-01-25 2023-12-31 13F ISHARES TR MBS ETF 464288588 5,522 -1,417 520 0.1107
2023-10-27 2023-09-30 13F ISHARES TR MBS ETF 464288588 6,939 -86 -1.22 616 -5.95 0.1456
2023-08-09 2023-06-30 13F ISHARES TR MBS ETF 464288588 7,025 92 1.33 655 -0.15 0.1519
2023-05-04 2023-03-31 13F ISHARES TR MBS ETF 464288588 6,933 -1,644 -19.17 657 -17.48 0.1596
2023-02-07 2022-12-31 13F ISHARES TR MBS ETF 464288588 8,577 2,235 35.24 796 41.46 0.1919
2022-10-25 2022-09-30 13F ISHARES TR MBS ETF 464288588 6,342 -57 -0.89 562 -10.22 0.1397
2022-07-14 2022-06-30 13F ISHARES TR MBS ETF 464288588 6,399 6,399 626 0.1525
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.