iShares Trust - iShares Russell 1000 ETF
US ˙ ARCA ˙ US4642876225

SecurityIWB / iShares Trust - iShares Russell 1000 ETF
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership24,998 shares
Latest Disclosed Value $ 8,913,316
CAPROCK Group, Inc. reports 5.19% increase in ownership of IWB / iShares Trust - iShares Russell 1000 ETF

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 24,998 shares of iShares Trust - iShares Russell 1000 ETF (US:IWB) valued at $8,913,287 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 23,765 shares of iShares Trust - iShares Russell 1000 ETF. This represents a change in shares of 5.19% during the quarter. The current value of the position is $10,294,926 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)
2026-05-11 2026-03-31 13F ISHARES TR RUS 1000 ETF 464287622 24,998 1,233 5.19 8,913 0.43 0.2163
2026-01-28 2025-12-31 13F ISHARES TR RUS 1000 ETF 464287622 23,765 -1,918 -7.47 8,875 -2.58 0.1875
2025-11-06 2025-09-30 13F ISHARES TR RUS 1000 ETF 464287622 25,683 -2,859 -10.02 9,110 4.05 0.2244
2025-05-15 2025-03-31 13F ISHARES TR RUS 1000 ETF 464287622 28,542 -169 -0.59 8,755 -5.34 0.2670
2025-01-23 2024-12-31 13F ISHARES TR RUS 1000 ETF 464287622 28,711 1 0.00 9,250 2.47 0.3023
2024-11-07 2024-09-30 13F ISHARES TR RUS 1000 ETF 464287622 28,710 2 0.01 9,026 5.67 0.3284
2024-08-06 2024-06-30 13F ISHARES TR RUS 1000 ETF 464287622 28,708 1 0.00 8,542 3.31 0.3474
2024-04-29 2024-03-31 13F ISHARES TR RUS 1000 ETF 464287622 28,707 -749 -2.54 8,269 7.03 0.4740
2024-01-18 2023-12-31 13F ISHARES TR RUS 1000 ETF 464287622 29,456 2 0.01 7,725 11.18 0.4937
2023-10-18 2023-09-30 13F ISHARES TR RUS 1000 ETF 464287622 29,454 0 0.00 6,949 -3.22 0.5258
2023-08-10 2023-06-30 13F ISHARES TR RUS 1000 ETF 464287622 29,454 1 0.00 7,179 8.23 0.5271
2023-04-26 2023-03-31 13F ISHARES TR RUS 1000 ETF 464287622 29,453 2 0.01 6,634 6.98 0.5141
2023-01-23 2022-12-31 13F ISHARES TR RUS 1000 ETF 464287622 29,451 -660 -2.19 6,200 4.34 0.5772
2022-11-07 2022-09-30 13F ISHARES TR RUS 1000 ETF 464287622 30,111 -187 -0.62 5,942 -5.61 0.5723
2022-07-26 2022-06-30 13F ISHARES TR RUS 1000 ETF 464287622 30,298 1 0.00 6,295 -16.92 0.6176
2022-04-12 2022-03-31 13F ISHARES TR RUS 1000 ETF 464287622 30,297 1 0.00 7,577 -5.42 0.7122
2022-01-18 2021-12-31 13F ISHARES TR RUS 1000 ETF 464287622 30,296 2 0.01 8,011 9.41 0.6604
2021-10-07 2021-09-30 13F ISHARES TR RUS 1000 ETF 464287622 30,294 0 0.00 7,322 -0.16 0.6543
2021-08-13 2021-06-30 13F ISHARES TR RUS 1000 ETF 464287622 30,294 3,001 11.00 7,334 20.05 0.6673
2021-04-29 2021-03-31 13F ISHARES TR RUS 1000 ETF 464287622 27,293 0 0.00 6,109 5.66 0.6681
2021-01-29 2020-12-31 13F ISHARES TR RUS 1000 ETF 464287622 27,293 2 0.01 5,782 13.19 0.6593
2020-10-29 2020-09-30 13F ISHARES TR RUS 1000 ETF 464287622 27,291 1 0.00 5,108 9.03 0.6992
2020-08-05 2020-06-30 13F ISHARES TR RUS 1000 ETF 464287622 27,290 -2,860 -9.49 4,685 9.80 0.7039
2020-04-28 2020-03-31 13F ISHARES TR RUS 1000 ETF 464287622 30,150 0 0.00 4,267 -20.67 0.8080
2020-02-04 2019-12-31 13F ISHARES TR RUS 1000 ETF 464287622 30,150 3 0.01 5,379 8.45 0.9621
2019-10-31 2019-09-30 13F ISHARES TR RUS 1000 ETF 464287622 30,147 0 0.00 4,960 1.06 0.9683
2019-07-23 2019-06-30 13F ISHARES TR RUS 1000 ETF 464287622 30,147 2 0.01 4,908 3.50 0.9593
2019-04-12 2019-03-31 13F ISHARES TR RUS 1000 ETF 464287622 30,145 1 0.00 4,742 13.42 0.9213
2019-01-29 2018-12-31 13F ISHARES TR RUS 1000 ETF 464287622 30,144 3 0.01 4,181 -14.60 0.9623
2018-10-17 2018-09-30 13F ISHARES TR RUS 1000 ETF 464287622 30,141 2 0.01 4,896 6.88 0.9956
2018-07-23 2018-06-30 13F ISHARES TR RUS 1000 ETF 464287622 30,139 0 0.00 4,581 3.50 0.9689
2018-04-23 2018-03-31 13F ISHARES TR RUS 1000 ETF 464287622 30,139 1 0.00 4,426 -5.04 0.9448
2018-01-17 2017-12-31 13F ISHARES TR RUS 1000 ETF 464287622 30,138 3 0.01 4,661 10.58 0.9069
2017-10-23 2017-09-30 13F ISHARES TR RUS 1000 ETF 464287622 30,135 1 0.00 4,215 3.41 0.8782
2017-07-27 2017-06-30 13F ISHARES TR RUS 1000 ETF 464287622 30,134 3 0.01 4,076 3.06 0.9055
2017-04-21 2017-03-31 13F ISHARES TR RUS 1000 ETF 464287622 30,131 -63 -0.21 3,955 5.24 0.9290
2017-01-24 2016-12-31 13F ISHARES TR RUS 1000 ETF 464287622 30,194 28,322 1,512.93 3,758 1,570.22 0.9457
2016-11-15 2016-09-30 13F ISHARES TR RUS 1000 ETF 464287622 1,872 -29,612 -94.05 225 -67.39 0.0510
2016-08-25 2016-06-30 13F ISHARES TR RUS 1000 ETF 464287622 31,484 29,330 1,361.65 690 180.49 0.1682
2016-05-11 2016-03-31 13F ISHARES TR RUS 1000 ETF 464287622 2,154 6 0.28 246 1.23 0.0583
2016-02-09 2015-12-31 13F ISHARES TR RUS 1000 ETF 464287622 2,148 2 0.09 243 5.65 0.1391
2015-11-10 2015-09-30 13F ISHARES TR RUS 1000 ETF 464287622 2,146 -150 -6.53 230 -13.53 0.1634
2015-08-12 2015-06-30 13F ISHARES TR RUS 1000 ETF 464287622 2,296 155 7.24 266 7.26 0.2437
2015-05-08 2015-03-31 13F ISHARES TR RUS 1000 ETF 464287622 2,141 3 0.14 248 1.22 0.2535
2015-02-06 2014-12-31 13F ISHARES TR RUS 1000 ETF 464287622 2,138 2,138 245 0.2657
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.