iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionAscent Group, LLC
Latest Disclosed Ownership277,250 shares
Latest Disclosed Value $ 26,324,862
Ascent Group, LLC reports 7.45% increase in ownership of MBB / iShares Trust - iShares MBS ETF

On May 15, 2026 - Ascent Group, LLC filed a 13F-HR form disclosing ownership of 277,250 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $26,324,888 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 258,035 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of 7.45% during the quarter. The current value of the position is $25,989,415 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 277,250 19,215 7.45 26,325 7.14 0.3013
2026-01-20 2025-12-31 13F ISHARES TR MBS ETF 464288588 258,035 10,978 4.44 24,570 4.52 0.8400
2025-10-20 2025-09-30 13F ISHARES TR MBS ETF 464288588 247,057 12,736 5.44 23,507 6.85 0.8315
2025-07-21 2025-06-30 13F ISHARES TR MBS ETF 464288588 234,321 12,732 5.75 22,000 5.87 0.8569
2025-05-16 2025-03-31 13F ISHARES TR MBS ETF 464288588 221,589 127,992 136.75 20,781 142.19 0.8926
2025-02-21 2024-12-31 13F ISHARES TR MBS ETF 464288588 93,597 3,836 4.27 8,581 -0.23 0.6445
2024-11-14 2024-09-30 13F ISHARES TR MBS ETF 464288588 89,761 13,212 17.26 8,600 22.39 0.6514
2024-08-15 2024-06-30 13F ISHARES TR MBS ETF 464288588 76,549 16,488 27.45 7,028 26.61 0.5723
2024-05-15 2024-03-31 13F ISHARES TR MBS ETF 464288588 60,061 19,158 46.84 5,551 47.25 0.4890
2024-02-14 2023-12-31 13F ISHARES TR MBS ETF 464288588 40,903 -2,777 -6.36 3,770 -2.31 0.3575
2023-11-14 2023-09-30 13F ISHARES TR MBS ETF 464288588 43,680 6,307 16.88 3,859 12.18 0.4261
2023-08-14 2023-06-30 13F ISHARES TR MBS ETF 464288588 37,373 23,480 169.01 3,440 161.32 0.3790
2023-05-10 2023-03-31 13F ISHARES TR MBS ETF 464288588 13,893 5,751 70.63 1,316 74.30 0.1400
2023-02-17 2022-12-31 13F ISHARES TR MBS ETF 464288588 8,142 -799 -8.94 755 -6.56 0.0889
2022-11-15 2022-09-30 13F ISHARES TR MBS ETF 464288588 8,941 4,868 119.52 808 97.56 0.0983
2022-08-05 2022-06-30 13F ISHARES TR MBS ETF 464288588 4,073 -1,800 -30.65 409 -31.61 0.0489
2022-05-10 2022-03-31 13F ISHARES TR MBS ETF 464288588 5,873 -12,518 -68.07 598 -69.29 0.0696
2022-03-01 2021-12-31 13F ISHARES TR MBS ETF 464288588 18,391 18,391 1,947 0.2481
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.