iShares Trust - iShares Core Universal USD Bond ETF
US ˙ NasdaqGM ˙ US46434V6130

SecurityIUSB / iShares Trust - iShares Core Universal USD Bond ETF
InstitutionTarbox Family Office, Inc.
Latest Disclosed Ownership13,523 shares
Latest Disclosed Value $ 624,605
Tarbox Family Office, Inc. reports 0.69% decrease in ownership of IUSB / iShares Trust - iShares Core Universal USD Bond ETF

On April 23, 2026 - Tarbox Family Office, Inc. filed a 13F-HR form disclosing ownership of 13,523 shares of iShares Trust - iShares Core Universal USD Bond ETF (US:IUSB) valued at $624,627 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 13,617 shares of iShares Trust - iShares Core Universal USD Bond ETF. This represents a change in shares of -0.69% during the quarter. The current value of the position is $621,247 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)
2026-04-23 2026-03-31 13F ISHARES TR CORE UNIVRSL USD 46434V613 13,523 -94 -0.69 625 -1.42 0.1014
2026-01-21 2025-12-31 13F ISHARES TR CORE UNIVRSL USD 46434V613 13,617 -3,096 -18.52 634 -18.85 0.1020
2025-10-24 2025-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 16,713 -2,360 -12.37 781 -11.46 0.1146
2025-08-12 2025-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 19,073 -5,136 -21.22 882 -20.99 0.1326
2025-05-08 2025-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 24,209 -10,142 -29.52 1,116 -28.16 0.1854
2025-01-17 2024-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 34,351 4,017 13.24 1,553 8.61 0.2561
2024-10-23 2024-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 30,334 735 2.48 1,429 6.80 0.2342
2024-07-17 2024-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 29,599 3,411 13.03 1,338 12.15 0.2361
2024-04-16 2024-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 26,188 4,296 19.62 1,194 18.35 0.2099
2024-02-08 2023-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 21,892 -2,056 -8.59 1,009 -3.63 0.1961
2023-10-13 2023-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 23,948 1,841 8.33 1,047 4.08 0.2168
2023-07-20 2023-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 22,107 446 2.06 1,005 0.60 0.1955
2023-04-11 2023-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 21,661 140 0.65 1,000 3.42 0.2020
2023-01-25 2022-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 21,521 8,476 64.98 967 58.10 0.2119
2022-10-14 2022-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 13,045 -3,999 -23.46 611 -23.43 0.1449
2022-07-19 2022-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 17,044 5,382 46.15 798 37.82 0.1792
2022-04-25 2022-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 11,662 431 3.84 579 -2.53 0.1175
2022-01-06 2021-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 11,231 2,891 34.66 594 33.78 0.1023
2021-10-12 2021-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 8,340 819 10.89 444 10.45 0.0813
2021-07-16 2021-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 7,521 119 1.61 402 3.08 0.0718
2021-04-27 2021-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 7,402 402 5.74 390 2.09 0.0768
2021-01-27 2020-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 7,000 1,530 27.97 382 28.62 0.0798
2020-10-22 2020-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 5,470 5,470 297 0.0723
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.