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

SecurityIWB / iShares Trust - iShares Russell 1000 ETF
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership19,996 shares
Latest Disclosed Value $ 7,130
Natixis Advisors, L.p. reports 8.83% increase in ownership of IWB / iShares Trust - iShares Russell 1000 ETF

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 19,996 shares of iShares Trust - iShares Russell 1000 ETF (US:IWB) valued at $7,129,774 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 18,373 shares of iShares Trust - iShares Russell 1000 ETF. This represents a change in shares of 8.83% during the quarter. The current value of the position is $8,234,953 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)
2026-05-13 2026-03-31 13F ISHARES RUS 1000 ETF 464287622 19,996 1,623 8.83 7 16.67 0.0099
2026-02-10 2025-12-31 13F ISHARES RUS 1000 ETF 464287622 18,373 -3,638 -16.53 7 -25.00 0.0097
2025-11-13 2025-09-30 13F ISHARES NATIONAL MUN ETF 464287622 22,011 -253 -1.14 8 14.29 0.0117
2025-08-13 2025-06-30 13F ISHARES TR RUS 1000 ETF 464287622 22,264 -120 -0.54 8 16.67 0.0120
2025-05-08 2025-03-31 13F ISHARES S&P MC 400GR ETF 464287622 22,384 1,137 5.35 7 0.00 0.0127
2025-02-10 2024-12-31 13F ISHARES MSCI TOTAL 464287622 21,247 703 3.42 7 0.00 0.0128
2024-11-06 2024-09-30 13F ISHARES CORE S&P MCP ETF 464287622 20,544 2,836 16.02 6 20.00 0.0126
2024-08-01 2024-06-30 13F ISHARES CORE 1 5 YR USD 464287622 17,708 5,959 50.72 5 66.67 0.0115
2024-04-25 2024-03-31 13F ISHARES RUS 1000 ETF 464287622 11,749 403 3.55 3 50.00 0.0078
2024-02-06 2023-12-31 13F ISHARES CORE RUS 1000 ETF 464287622 11,346 -720 -5.97 3 0.00 0.0078
2023-11-13 2023-09-30 13F ISHARES CORE S&P GSCI COMMODITY IDX UNIT BEN INT 464287622 12,066 -858 -6.64 3 -33.33 0.0087
2023-08-15 2023-06-30 13F ISHARES S&P GSCI COMMODITY IDX UNIT BEN INT 464287622 12,924 300 2.38 3 50.00 0.0097
2023-05-11 2023-03-31 13F ISHARES TR RUS 1000 ETF 464287622 12,624 -1,037 -7.59 3 0.00 0.0098
2023-01-27 2022-12-31 13F ISHARES COM 464287622 13,661 -6,807 -33.26 3 -99.95 0.0109
2022-11-14 2022-09-30 13F ISHARES RUS 1000 ETF 464287622 20,468 6,511 46.65 4,039 39.28 0.0171
2022-08-12 2022-06-30 13F ISHARES CORE 1000 ETF 464287622 13,957 1,067 8.28 2,900 -10.02 0.0128
2022-05-12 2022-03-31 13F ISHARES TR RUS 1000 ETF 464287622 12,890 -1,482 -10.31 3,223 -15.18 0.0123
2022-02-08 2021-12-31 13F ISHARES TR RUS 1000 ETF 464287622 14,372 4,266 42.21 3,800 55.55 0.0145
2021-11-15 2021-09-30 13F iShares TR RUS 1000 VAL ETF 464287622 10,106 10,106 2,443 0.0100
2020-11-12 2020-09-30 13F iShares CORE S&P VLU ETF 464287622 0 -15,909 -100.00 0 -100.00
2020-08-11 2020-06-30 13F iShares CORE S&P VLU ETF 464287622 15,909 -6,030 -27.49 2,731 -12.05 0.0181
2020-04-27 2020-03-31 13F ISHARES TR RUS 1000 ETF 464287622 21,939 21,939 3,105 0.0253
2019-05-15 2019-03-31 13F/A-1 ISHARES TR RUS 1000 ETF 464287622 0 -11,537 -100.00 0 -100.00
2019-02-13 2018-12-31 13F/A-1 ISHARES TR RUS 1000 ETF 464287622 11,537 11,537 1,600 0.0158
2019-02-13 2018-12-31 13F ISHARES TR RUS 1000 ETF 464287622 11,537 11,537 1,600
2016-02-12 2015-12-31 13F ISHARES SP SMCP600VL ETF 464287622 0 0 0 0.0000
2015-11-12 2015-09-30 13F ISHARES SP SMCP600VL ETF 464287622 0 0 0 0.0000
2014-11-03 2014-09-30 13F ISHARES RUS 1000 ETF 464287622 0 -7,693 -100.00 0 -100.00
2014-08-13 2014-06-30 13F ISHARES RUS 1000 ETF 464287622 7,693 -14 -0.18 847 4.96 0.0121
2014-05-13 2014-03-31 13F ISHARES SP SMCP600VL ETF 464287622 7,707 -160 -2.03 807 -0.62 0.0124
2014-02-12 2013-12-31 13F ISHARES RUS 1000 ETF 464287622 7,867 -1,585 -16.77 812 -8.76 0.0133
2013-10-30 2013-09-30 13F ISHARES RUSSL 1000 INDX 464287622 9,452 -793 -7.74 890 -3.47 0.0164
2013-07-19 2013-06-30 13F ISHARES RUSSL 1000 INDX 464287622 10,245 10,245 922 0.0184
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.