iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionStansberry Asset Management, Llc
Latest Disclosed Ownership195,885 shares
Latest Disclosed Value $ 18,599,302
Stansberry Asset Management, Llc reports 28.39% increase in ownership of MBB / iShares Trust - iShares MBS ETF

On May 15, 2026 - Stansberry Asset Management, Llc filed a 13F-HR form disclosing ownership of 195,885 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $18,599,281 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 152,572 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of 28.39% during the quarter. The current value of the position is $18,434,737 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 195,885 43,313 28.39 18,599 28.03 1.9121
2026-02-17 2025-12-31 13F ISHARES TR MBS ETF 464288588 152,572 -13,023 -7.86 14,528 -7.80 1.4715
2025-11-14 2025-09-30 13F ISHARES TR MBS ETF 464288588 165,595 -56,019 -25.28 15,756 -24.28 1.6483
2025-08-14 2025-06-30 13F ISHARES TR MBS ETF 464288588 221,614 221,614 20,807 2.2739
2025-02-14 2024-12-31 13F ISHARES TR MBS ETF 464288588 0 -49,117 -100.00 0 -100.00
2024-11-14 2024-09-30 13F ISHARES TR MBS ETF 464288588 49,117 -2,991 -5.74 4,706 -1.65 0.5877
2024-08-14 2024-06-30 13F ISHARES TR MBS ETF 464288588 52,108 827 1.61 4,784 0.95 0.6274
2024-05-15 2024-03-31 13F ISHARES TR MBS ETF 464288588 51,281 -1,192 -2.27 4,739 -3.99 0.6395
2024-02-14 2023-12-31 13F ISHARES TR MBS ETF 464288588 52,473 -3,469 -6.20 4,937 -0.62 0.8203
2023-11-14 2023-09-30 13F ISHARES TR MBS ETF 464288588 55,942 19,613 53.99 4,968 46.61 0.8695
2023-08-17 2023-06-30 13F/A-1 ISHARES TR MBS ETF 464288588 36,329 -871 -2.34 3,388 -3.83 0.6198
2023-08-11 2023-06-30 13F ISHARES TR MBS ETF 464288588 36,329 -871 3,388 0.6518
2023-05-12 2023-03-31 13F ISHARES TR MBS ETF 464288588 37,200 -2,626 -6.59 3,524 -4.60 0.6829
2023-02-14 2022-12-31 13F ISHARES TR MBS ETF 464288588 39,826 687 1.76 3,694 3.04 0.7627
2022-11-14 2022-09-30 13F ISHARES TR MBS ETF 464288588 39,139 39,139 3,584 0.7742
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.