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

SecurityIWB / iShares Trust - iShares Russell 1000 ETF
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership32,819 shares
Latest Disclosed Value $ 11,793,551
Wiley Bros.-aintree Capital, Llc reports 31.37% decrease in ownership of IWB / iShares Trust - iShares Russell 1000 ETF

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 32,819 shares of iShares Trust - iShares Russell 1000 ETF (US:IWB) valued at $11,701,943 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 47,821 shares of iShares Trust - iShares Russell 1000 ETF. This represents a change in shares of -31.37% during the quarter. The current value of the position is $13,515,849 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)
2026-05-15 2026-03-31 13F ISHARES TR RUS 1000 ETF 464287622 32,819 -15,002 -31.37 11,794 -34.46 0.0583
2026-02-17 2025-12-31 13F ISHARES TR RUS 1000 ETF 464287622 47,821 -31,586 -39.78 17,994 -38.07 0.0941
2025-11-14 2025-09-30 13F ISHARES TR RUS 1000 ETF 464287622 79,407 1,822 2.35 29,053 11.03 0.1861
2025-08-14 2025-06-30 13F ISHARES TR RUS 1000 ETF 464287622 77,585 2,530 3.37 26,166 14.13 0.2008
2025-05-15 2025-03-31 13F ISHARES TR RUS 1000 ETF 464287622 75,055 48,975 187.79 22,927 170.32 0.2436
2025-02-14 2024-12-31 13F ISHARES TR RUS 1000 ETF 464287622 26,080 11,531 79.26 8,482 83.53 0.1017
2024-11-14 2024-09-30 13F ISHARES TR RUS 1000 ETF 464287622 14,549 489 3.48 4,621 10.47 0.0892
2024-07-24 2024-06-30 13F ISHARES TR RUS 1000 ETF 464287622 14,060 3,086 28.12 4,184 32.71 0.1831
2024-04-11 2024-03-31 13F ISHARES TR RUS 1000 ETF 464287622 10,974 -50,100 -82.03 3,152 -80.28 0.4343
2024-01-09 2023-12-31 13F ISHARES TR RUS 1000 ETF 464287622 61,074 61,074 15,980 3.8920
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.