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

SecurityIUSB / iShares Trust - iShares Core Universal USD Bond ETF
InstitutionRobertson Stephens Wealth Management, LLC
Latest Disclosed Ownership13,407 shares
Latest Disclosed Value $ 619,269
Robertson Stephens Wealth Management, LLC reports 21.80% increase in ownership of IUSB / iShares Trust - iShares Core Universal USD Bond ETF

On April 28, 2026 - Robertson Stephens Wealth Management, LLC filed a 13F-HR form disclosing ownership of 13,407 shares of iShares Trust - iShares Core Universal USD Bond ETF (US:IUSB) valued at $619,269 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 11,007 shares of iShares Trust - iShares Core Universal USD Bond ETF. This represents a change in shares of 21.80% during the quarter. The current value of the position is $614,041 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)
2026-04-28 2026-03-31 13F ISHARES TR CORE UNIVRSL USD 46434V613 13,407 2,400 21.80 619 20.90 0.0173
2026-02-02 2025-12-31 13F ISHARES TR CORE UNIVRSL USD 46434V613 11,007 11,007 512 0.0134
2025-11-12 2025-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 0 -80,338 -100.00 0 -100.00
2025-07-24 2025-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 80,338 3,822 5.00 3,714 5.36 0.1182
2025-04-17 2025-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 76,516 -15,891 -17.20 3,526 -15.59 0.1212
2025-01-27 2024-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 92,407 -47,697 -34.04 4,177 -36.74 0.1479
2024-11-12 2024-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 140,104 25,363 22.10 6,602 27.24 0.2393
2024-08-13 2024-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 114,741 10,126 9.68 5,189 8.79 0.2612
2024-05-15 2024-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 104,615 35,794 52.01 4,769 50.44 0.2529
2024-02-06 2023-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 68,821 -110,808 -61.69 3,171 -59.63 0.1926
2023-11-13 2023-09-30 13F ISHARES TR CORE TOTAL USD 46434V613 179,629 59,284 49.26 7,852 43.49 0.5297
2023-08-11 2023-06-30 13F ISHARES TR CORE TOTAL USD 46434V613 120,345 6,866 6.05 5,472 4.49 0.3871
2023-05-11 2023-03-31 13F ISHARES TR CORE TOTAL USD 46434V613 113,479 27,523 32.02 5,237 35.60 0.4030
2023-02-14 2022-12-31 13F ISHARES TR CORE TOTAL USD 46434V613 85,956 39,777 86.14 3,862 88.02 0.3761
2022-11-14 2022-09-30 13F iShares TR Core CORE TOTAL USD 46434V613 46,179 -17,934 -27.97 2,054 -31.56 0.2143
2022-08-12 2022-06-30 13F iShares TR Core total Usd CORE TOTAL USD 46434V613 64,113 -24,355 -27.53 3,001 -31.64 0.2831
2022-05-16 2022-03-31 13F iShares TR Core CORE TOTAL USD 46434V613 88,468 16,117 22.28 4,390 14.65 0.3687
2022-02-14 2021-12-31 13F iShares TR Core CORE TOTAL USD 46434V613 72,351 3,365 4.88 3,829 4.28 0.3221
2021-11-10 2021-09-30 13F iShares TR Core CORE TOTAL USD 46434V613 68,986 20,557 42.45 3,672 41.78 0.4147
2021-08-17 2021-06-30 13F iShares TR Core CORE TOTAL USD 46434V613 48,429 30,414 168.83 2,590 172.63 0.3110
2021-05-07 2021-03-31 13F iShares TR Core CORE TOTAL USD 46434V613 18,015 18,015 950 0.1520
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.