iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionFiduciary Trust Co
Latest Disclosed Ownership12,607 shares
Latest Disclosed Value $ 1,197,034
Fiduciary Trust Co reports 16.10% decrease in ownership of MBB / iShares Trust - iShares MBS ETF

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 12,607 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $1,197,035 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 15,027 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of -16.10% during the quarter. The current value of the position is $1,187,705 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)
2026-05-15 2026-03-31 13F ISHARES TR MBS ETF 464288588 12,607 -2,420 -16.10 1,197 -16.29 0.0082
2026-02-13 2025-12-31 13F ISHARES TR MBS ETF 464288588 15,027 -865 -5.44 1,431 -5.42 0.0163
2025-11-14 2025-09-30 13F ISHARES TR MBS ETF 464288588 15,892 -130 -0.81 1,512 0.53 0.0171
2025-08-14 2025-06-30 13F ISHARES TR MBS ETF 464288588 16,022 4,800 42.77 1,504 42.97 0.0185
2025-05-15 2025-03-31 13F ISHARES TR MBS ETF 464288588 11,222 371 3.42 1,052 5.84 0.0138
2025-02-14 2024-12-31 13F ISHARES TR MBS ETF 464288588 10,851 150 1.40 995 -3.02 0.0131
2024-11-14 2024-09-30 13F ISHARES TR MBS ETF 464288588 10,701 3,635 51.44 1,025 58.18 0.0143
2024-08-14 2024-06-30 13F ISHARES TR MBS ETF 464288588 7,066 -380 -5.10 649 -5.81 0.0097
2024-05-14 2024-03-31 13F ISHARES TR MBS ETF 464288588 7,446 252 3.50 688 1.78 0.0106
2024-02-12 2023-12-31 13F ISHARES TR MBS ETF 464288588 7,194 -379 -5.00 677 0.60 0.0113
2023-11-14 2023-09-30 13F ISHARES TR MBS ETF 464288588 7,573 -93 -1.21 672 -5.88 0.0123
2023-08-01 2023-06-30 13F ISHARES TR MBS ETF 464288588 7,666 1,400 22.34 715 20.40 0.0126
2023-05-15 2023-03-31 13F ISHARES TR MBS ETF 464288588 6,266 2,443 63.90 594 67.51 0.0110
2023-02-14 2022-12-31 13F ISHARES TR MBS ETF 464288588 3,823 -4,294 -52.90 355 -52.36 0.0069
2022-11-14 2022-09-30 13F ISHARES TR MBS ETF 464288588 8,117 0 0.00 743 -6.07 0.0161
2022-08-12 2022-06-30 13F ISHARES TR MBS ETF 464288588 8,117 3,540 77.34 791 69.74 0.0167
2022-05-12 2022-03-31 13F ISHARES TR MBS ETF 464288588 4,577 -2,705 -37.15 466 -40.41 0.0084
2022-02-14 2021-12-31 13F ISHARES TR MBS ETF 464288588 7,282 -225 -3.00 782 -3.69 0.0129
2021-11-12 2021-09-30 13F ISHARES TR MBS ETF 464288588 7,507 510 7.29 812 7.27 0.0144
2021-08-16 2021-06-30 13F ISHARES TR MBS ETF 464288588 6,997 5,097 268.26 757 267.48 0.0147
2021-05-19 2021-03-31 13F ISHARES TR MBS ETF 464288588 1,900 1,900 206 0.0042
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.