iShares 美國 ETF 信託 - iShares 超短期債券主動型 ETF
US ˙ BATS ˙ US46434V8789

SecurityICSH / iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF
InstitutionBlackRock, Inc.
Latest Disclosed Ownership1,478,476 shares
Latest Disclosed Value $ 74,840,445
BlackRock, Inc. reports 36.97% decrease in ownership of ICSH / iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 1,478,476 shares of iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF (US:ICSH) valued at $74,840,455 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,345,768 shares of iShares U.S. ETF Trust - iShares Ultra Short Duration Bond Active ETF. This represents a change in shares of -36.97% during the quarter. The current value of the position is $74,603,899 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)
2026-05-13 2026-03-31 13F ISHARES TR ULTRA SHORT DUR 46434V878 1,478,476 -867,292 -36.97 74,840 -36.92 0.0001
2026-02-12 2025-12-31 13F ISHARES TR ULTRA SHORT DUR 46434V878 2,345,768 1,282,516 120.62 118,649 119.88 0.0020
2025-11-12 2025-09-30 13F ISHARES TR ULTRA SHORT DUR 46434V878 1,063,252 11,656 1.11 53,960 1.19 0.0009
2025-08-12 2025-06-30 13F ISHARES TR ULTRA SHORT DUR 46434V878 1,051,596 -273,584 -20.65 53,326 -20.63 0.0010
2025-05-02 2025-03-31 13F ISHARES TR ULTRA SHORT-TERM 46434V878 1,325,180 299,879 29.25 67,187 29.94 0.0014
2025-02-07 2024-12-31 13F ISHARES TR ULTRA SHORT-TERM 46434V878 1,025,301 -2,593,732 -71.67 51,706 -71.84 0.0010
2024-11-13 2024-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 3,619,033 -290,438 -7.43 183,630 -7.04 0.0039
2024-08-13 2024-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 3,909,471 -521,121 -11.76 197,546 -11.81 0.0045
2024-05-10 2024-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,430,592 58,044 1.33 224,011 1.73 0.0052
2024-02-13 2023-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,372,548 -18,868 -0.43 220,202 -0.47 0.0056
2023-11-13 2023-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,391,416 274,497 6.67 221,240 6.84 0.0064
2023-08-11 2023-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,116,919 66,502 1.64 207,081 1.74 0.0057
2023-05-12 2023-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,050,417 -1,984,563 -32.88 203,533 -32.60 0.0060
2023-02-13 2022-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 6,034,980 2,684,984 80.15 301,990 80.26 0.0095
2022-11-14 2022-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 3,349,996 1,441,212 75.50 167,534 75.40 0.0057
2022-08-12 2022-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 1,908,784 77,301 4.22 95,516 3.99 0.0031
2022-05-12 2022-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 1,831,483 -3,115,945 -62.98 91,849 -63.16 0.0025
2022-02-10 2021-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 4,947,428 3,043,370 159.84 249,301 159.24 0.0063
2021-11-09 2021-09-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 1,904,058 115,553 6.46 96,165 6.43 0.0027
2021-08-11 2021-06-30 13F ISHARES TR BLACKROCK ULTRA 46434V878 1,788,505 -9,458 -0.53 90,355 -0.53 0.0025
2021-05-07 2021-03-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 1,797,963 -384,912 -17.63 90,833 -17.63 0.0027
2021-02-05 2020-12-31 13F ISHARES TR BLACKROCK ULTRA 46434V878 2,182,875 995,802 83.89 110,279 83.70 0.0035
2020-11-06 2020-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,187,073 925,761 354.27 60,031 354.37 0.0022
2020-08-14 2020-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 261,312 261,300 2,177,500.00 13,212 1,321,100.00 0.0005
2020-05-01 2020-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 12 -318,517 -100.00 1 -99.99 0.0000
2020-02-13 2019-12-31 13F ISHARES TR ULTR SH TRM BD 46434V878 318,529 -243,669 -43.34 16,031 -43.41 0.0006
2019-11-08 2019-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 562,198 -30,000 -5.07 28,329 -5.07 0.0012
2019-08-22 2019-06-30 13F/A-1 ISHARES TR ULTR SH TRM BD 46434V878 592,198 399,075 206.64 29,841 207.20 0.0013
2019-08-13 2019-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 592,198 399,075 29,841
2019-05-09 2019-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 193,123 193,123 9,714 0.0004
2018-11-09 2018-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 0 -225,000 -100.00 0 -100.00
2018-08-09 2018-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 225,000 -640,000 -73.99 11,285 -73.96 0.0005
2018-05-09 2018-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 865,000 0 0.00 43,345 0.10 0.0021
2018-02-09 2017-12-31 13F ISHARES TR ULTR SH TRM BD 46434V878 865,000 0 0.00 43,302 -0.11 0.0021
2017-11-14 2017-09-30 13F ISHARES TR ULTR SH TRM BD 46434V878 865,000 -980,000 -53.12 43,349 -53.10 0.0022
2017-08-10 2017-06-30 13F ISHARES TR ULTR SH TRM BD 46434V878 1,845,000 -105,000 -5.38 92,435 -5.39 0.0049
2017-05-12 2017-03-31 13F ISHARES TR ULTR SH TRM BD 46434V878 1,950,000 1,950,000 97,703 0.0054
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.