iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF
US ˙ BATS ˙ US46434V8789

SecurityICSH / iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF
InstitutionBlair William & Co/il
Latest Disclosed Ownership7,942 shares
Latest Disclosed Value $ 402,042
Blair William & Co/il reports 8.08% increase in ownership of ICSH / iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 7,942 shares of iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF (US:ICSH) valued at $402,024 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,348 shares of iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF. This represents a change in shares of 8.08% during the quarter. The current value of the position is $400,594 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)
2026-05-08 2026-03-31 13F ISHARES TR ULTRA SHORT DUR 46434V878 7,942 594 8.08 402 8.36 0.0012
2026-02-17 2025-12-31 13F ISHARES TR ULTRA SHORT DUR 46434V878 7,348 2 0.03 372 -0.27 0.0010
2025-11-12 2025-09-30 13F ISHARES TR ULTRA SHORT DUR 46434V878 7,346 2 0.03 373 0.00 0.0010
2025-07-24 2025-06-30 13F ISHARES TR ULTRA SHORT DUR 46434V878 7,344 -1,001 -12.00 372 -12.06 0.0010
2025-05-09 2025-03-31 13F ISHARES TR ULTRA SHORT-TERM 46434V878 8,345 1 0.01 423 0.71 0.0013
2025-02-12 2024-12-31 13F ISHARES TR ULTRA SHORT-TERM 46434V878 8,344 -198 -2.32 421 -3.00 0.0012
2024-11-12 2024-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 8,542 -1,594 -15.73 433 -15.43 0.0013
2024-08-12 2024-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 10,136 -1,453 -12.54 512 -12.48 0.0016
2024-05-09 2024-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 11,589 -3,380 -22.58 586 -22.31 0.0018
2024-02-12 2023-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 14,969 3,476 30.24 754 30.05 0.0026
2023-11-09 2023-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 11,493 2,433 26.85 579 27.25 0.0022
2023-08-11 2023-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 9,060 -499 -5.22 456 -5.21 0.0017
2023-05-12 2023-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 9,559 0 0.00 480 0.42 0.0019
2023-02-10 2022-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 9,559 -376 -3.78 478 -3.82 0.0021
2022-11-09 2022-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 9,935 -31,184 -75.84 497 -75.85 0.0023
2022-08-10 2022-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 41,119 977 2.43 2,058 2.24 0.0091
2022-05-13 2022-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 40,142 -240 -0.59 2,013 -1.08 0.0071
2022-02-14 2021-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 40,382 37,633 1,368.97 2,035 1,364.03 0.0064
2021-11-12 2021-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 2,749 -247 -8.24 139 -7.95 0.0005
2021-08-12 2021-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 2,996 0 0.00 151 0.00 0.0005
2021-05-13 2021-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 2,996 282 10.39 151 10.22 0.0006
2021-02-09 2020-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 2,714 0 0.00 137 0.00 0.0005
2020-11-06 2020-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 2,714 0 0.00 137 0.00 0.0006
2020-08-12 2020-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 2,714 0 0.00 137 0.74 0.0007
2020-05-11 2020-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 2,714 0 0.00 136 -0.73 0.0009
2020-02-13 2019-12-31 13F ISHARES TR ULTR SH TRM BD 46434V878 2,714 1,214 80.93 137 80.26 0.0007
2019-11-12 2019-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 0 0.00 76 0.00 0.0004
2019-08-13 2019-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 0 0.00 76 1.33 0.0004
2019-05-14 2019-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 0 0.00 75 0.00 0.0005
2019-02-14 2018-12-31 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 0 0.00 75 0.00 0.0005
2018-11-13 2018-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 0 0.00 75 0.00 0.0005
2018-08-13 2018-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,500 -9,388 -86.22 75 -86.26 0.0005
2018-05-15 2018-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 10,888 0 0.00 546 0.18 0.0039
2018-02-14 2017-12-31 13F ISHARES TR ULTR SH TRM BD 46434V878 10,888 10,888 545 0.0037
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.