iShares Trust - iShares MBS ETF
US ˙ NasdaqGM ˙ US4642885887

SecurityMBB / iShares Trust - iShares MBS ETF
InstitutionBessemer Group Inc
Latest Disclosed Ownership1,596,964 shares
Latest Disclosed Value $ 151,632
Bessemer Group Inc reports 6.55% increase in ownership of MBB / iShares Trust - iShares MBS ETF

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 1,596,964 shares of iShares Trust - iShares MBS ETF (US:MBB) valued at $151,631,732 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 1,498,803 shares of iShares Trust - iShares MBS ETF. This represents a change in shares of 6.55% during the quarter. The current value of the position is $149,699,405 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,596,964 98,161 6.55 152 6.34 0.2383
2026-02-05 2025-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,498,803 97,389 6.95 143 6.77 0.2191
2025-11-05 2025-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,401,414 1,149 0.08 133 1.53 0.2039
2025-08-01 2025-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,400,265 -688 -0.05 131 0.00 0.2134
2025-04-23 2025-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,400,953 567,008 67.99 131 72.37 0.2356
2025-02-13 2024-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 833,945 -160,010 -16.10 76 -20.00 0.1248
2024-11-12 2024-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 993,955 -265 -0.03 95 4.40 0.1569
2024-08-13 2024-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 994,220 0 0.00 91 0.00 0.1610
2024-08-13 2024-03-31 13F/A-1 ISHARES BARCLAY MBS BD FD FEF 464288588 994,220 950,966 2,198.56 92 2,175.00 0.1661
2024-05-13 2024-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 994,220 950,966 92 0.1661
2024-02-09 2023-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 43,254 -979,736 -95.77 4 -95.56 0.0079
2023-11-13 2023-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,022,990 108,678 11.89 91 5.88 0.1994
2023-08-10 2023-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 914,312 913,189 81,316.92 85 0.1809
2023-05-10 2023-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,123 -13 -1.14 0 0.0003
2023-02-13 2022-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,136 341 42.89 0 -100.00 0.0003
2022-11-09 2022-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 795 795 73 0.0002
2022-01-27 2021-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 0 -1,388 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,388 920 196.58 150 194.12 0.0003
2021-08-06 2021-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 468 0 0.00 51 0.00 0.0001
2021-05-13 2021-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 468 0 0.00 51 -1.92 0.0001
2021-02-09 2020-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 468 -912 -66.09 52 -65.79 0.0001
2020-11-12 2020-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,380 1,380 194.87 152 192.31 0.0004
2019-07-19 2019-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 0 -214 -100.00 0 -100.00
2019-05-13 2019-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 214 -11 -4.89 23 -4.17 0.0001
2019-05-21 2018-12-31 13F/A-1 ISHARES BARCLAY MBS BD FD FEF 464288588 225 -200 -47.06 24 -45.45 0.0001
2019-02-12 2018-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 225 -200 24 0.0001
2018-11-06 2018-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 425 425 88.89 44 83.33 0.0002
2018-07-25 2018-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 0 -700 -100.00 0 -100.00
2018-05-10 2018-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 700 -300 -30.00 73 -31.78 0.0003
2018-01-30 2017-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 1,000 -2,200 -68.75 107 -68.80 0.0004
2017-11-03 2017-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,200 0 0.00 343 0.29 0.0014
2017-07-27 2017-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,200 0 0.00 342 0.29 0.0014
2017-05-12 2017-03-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,200 200 6.67 341 6.90 0.0014
2017-02-07 2016-12-31 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,000 0 0.00 319 -3.33 0.0015
2016-11-10 2016-09-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,000 0 0.00 330 0.00 0.0017
2016-08-11 2016-06-30 13F ISHARES BARCLAY MBS BD FD FEF 464288588 3,000 3,000 330 0.0018
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.