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

SecurityIWB / iShares Trust - iShares Russell 1000 ETF
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership4,488 shares
Latest Disclosed Value $ 1,600,241
Oppenheimer & Co Inc reports 75.44% decrease in ownership of IWB / iShares Trust - iShares Russell 1000 ETF

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 4,488 shares of iShares Trust - iShares Russell 1000 ETF (US:IWB) valued at $1,600,241 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 18,277 shares of iShares Trust - iShares Russell 1000 ETF. This represents a change in shares of -75.44% during the quarter. The current value of the position is $1,848,293 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)
2026-04-23 2026-03-31 13F ISHARES TR RUS 1000 ETF 464287622 4,488 -13,789 -75.44 1,600 -76.56 0.0195
2026-02-02 2025-12-31 13F ISHARES TR RUS 1000 ETF 464287622 18,277 13,426 276.77 6,825 285.16 0.0969
2025-11-06 2025-09-30 13F ISHARES TR RUS 1000 ETF 464287622 4,851 -194 -3.85 1,773 3.44 0.0216
2025-07-31 2025-06-30 13F ISHARES TR RUS 1000 ETF 464287622 5,045 914 22.13 1,713 35.20 0.0227
2025-04-23 2025-03-31 13F ISHARES TR RUS 1000 ETF 464287622 4,131 174 4.40 1,267 -0.55 0.0191
2025-02-05 2024-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,957 63 1.62 1,275 4.08 0.0190
2024-11-05 2024-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,894 210 5.70 1,224 11.68 0.0187
2024-08-08 2024-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,684 332 9.90 1,096 13.58 0.0174
2024-05-07 2024-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,352 -169 -4.80 965 4.55 0.0160
2024-02-13 2023-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,521 -30 -0.84 923 10.67 0.0170
2023-11-08 2023-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,551 -100 -2.74 834 -6.19 0.0172
2023-08-03 2023-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,651 -446 -10.89 890 -3.58 0.0178
2023-05-10 2023-03-31 13F ISHARES TR RUS 1000 ETF 464287622 4,097 8 0.20 923 7.21 0.0196
2023-02-08 2022-12-31 13F ISHARES TR RUS 1000 ETF 464287622 4,089 -147 -3.47 861 2.99 0.0196
2022-11-14 2022-09-30 13F ISHARES TR RUS 1000 ETF 464287622 4,236 503 13.47 835 7.74 0.0195
2022-08-08 2022-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,733 -96 -2.51 775 -19.02 0.0167
2022-05-12 2022-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,829 776 25.42 957 18.59 0.0172
2022-02-02 2021-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,053 -57 -1.83 807 7.31 0.0141
2021-11-12 2021-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,110 -225 -6.75 752 -6.82 0.0141
2021-08-03 2021-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,335 203 6.48 807 15.12 0.0145
2021-05-10 2021-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,132 0 0.00 701 5.73 0.0140
2021-02-11 2020-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,132 -13 -0.41 663 12.56 0.0140
2020-11-13 2020-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,145 273 9.51 589 19.47 0.0147
2020-08-11 2020-06-30 13F ISHARES TR RUS 1000 ETF 464287622 2,872 -420 -12.76 493 5.79 0.0128
2020-05-08 2020-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,292 -293 -8.17 466 -27.19 0.0141
2020-02-07 2019-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,585 -29 -0.80 640 7.56 0.0158
2019-10-31 2019-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,614 -125 -3.34 595 -2.30 0.0162
2019-08-09 2019-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,739 0 0.00 609 3.57 0.0165
2019-04-24 2019-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,739 1,208 47.73 588 67.52 0.0157
2019-01-29 2018-12-31 13F ISHARES TR RUS 1000 ETF 464287622 2,531 -30 -1.17 351 -15.22 0.0110
2018-10-26 2018-09-30 13F ISHARES TR RUS 1000 ETF 464287622 2,561 -156 -5.74 414 0.24 0.0105
2018-08-10 2018-06-30 13F ISHARES TR RUS 1000 ETF 464287622 2,717 -13 -0.48 413 2.99 0.0112
2018-05-01 2018-03-31 13F ISHARES TR RUS 1000 ETF 464287622 2,730 140 5.41 401 4.16 0.0103
2018-02-07 2017-12-31 13F ISHARES TR RUS 1000 ETF 464287622 2,590 -146 -5.34 385 0.52 0.0099
2017-11-09 2017-09-30 13F ISHARES TR RUS 1000 ETF 464287622 2,736 -132 -4.60 383 -1.29 0.0103
2017-08-09 2017-06-30 13F ISHARES TR RUS 1000 ETF 464287622 2,868 -49 -1.68 388 1.31 0.0107
2017-05-15 2017-03-31 13F ISHARES TR RUS 1000 ETF 464287622 2,917 -70 -2.34 383 2.96 0.0108
2017-02-01 2016-12-31 13F ISHARES TR RUS 1000 ETF 464287622 2,987 65 2.22 372 5.68 0.0108
2016-11-07 2016-09-30 13F ISHARES TR RUS 1000 ETF 464287622 2,922 -105 -3.47 352 -0.56 0.0103
2016-08-08 2016-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,027 -47 -1.53 354 0.85 0.0106
2016-04-26 2016-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,074 -166 -5.12 351 -4.36 0.0107
2016-02-03 2015-12-31 13F ISHARES TR RUS 1000 ETF 464287622 3,240 -6 -0.18 367 5.76 0.0109
2015-11-13 2015-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,246 -217 -6.27 347 -13.68 0.0105
2015-08-12 2015-06-30 13F ISHARES TR RUS 1000 ETF 464287622 3,463 65 1.91 402 2.03 0.0112
2015-05-08 2015-03-31 13F ISHARES TR RUS 1000 ETF 464287622 3,398 3,398 0.00 394 0.0107
2015-02-10 2014-12-31 13F ISHARES TR RUS 1000 ETF 464287622 0 -3,891 -100.00 0 -100.00
2014-11-12 2014-09-30 13F ISHARES TR RUS 1000 ETF 464287622 3,891 -59 -1.49 428 -1.61 0.0127
2014-08-14 2014-06-30 13F ISHARES RUS 1000 ETF 464287622 3,950 -70 -1.74 435 3.33 0.0131
2014-05-09 2014-03-31 13F ISHARES RUS 1000 ETF 464287622 4,020 -1 -0.02 421 1.45 0.0126
2014-02-12 2013-12-31 13F ISHARES RUS 1000 ETF 464287622 4,021 401 11.08 415 21.70 0.0133
2013-11-01 2013-09-30 13F ISHARES RUS 1000 ETF 464287622 3,620 -153 -4.06 341 0.59 0.0120
2013-08-14 2013-06-30 13F ISHARES TR RUSSELL 1000 464287622 3,773 3,773 339 0.0131
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.