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

SecurityIWB / iShares Trust - iShares Russell 1000 ETF
InstitutionKlingenstein Fields & Co Lp
Latest Disclosed Ownership1,444 shares
Latest Disclosed Value $ 514,873
Klingenstein Fields & Co Lp reports 8.25% increase in ownership of IWB / iShares Trust - iShares Russell 1000 ETF

On May 12, 2026 - Klingenstein Fields & Co Lp filed a 13F-HR form disclosing ownership of 1,444 shares of iShares Trust - iShares Russell 1000 ETF (US:IWB) valued at $514,873 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,334 shares of iShares Trust - iShares Russell 1000 ETF. This represents a change in shares of 8.25% during the quarter. The current value of the position is $581,946 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)
2026-05-12 2026-03-31 13F ISHARES RUS 1000 ETF 464287622 1,444 110 8.25 515 3.21 0.0151
2026-02-13 2025-12-31 13F ISHARES RUS 1000 ETF 464287622 1,334 0 0.00 498 2.26 0.0187
2025-11-14 2025-09-30 13F ISHARES RUS 1000 ETF 464287622 1,334 524 64.69 488 77.09 0.0184
2025-07-30 2025-06-30 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 275 10.89 0.0109
2025-04-28 2025-03-31 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 248 -4.62 0.0106
2025-01-30 2024-12-31 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 261 2.36 0.0105
2024-10-29 2024-09-30 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 255 5.39 0.0101
2024-08-01 2024-06-30 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 241 3.43 0.0100
2024-04-29 2024-03-31 13F ISHARES TR RUS 1000 ETF 464287622 810 0 0.00 233 9.91 0.0097
2024-02-01 2023-12-31 13F ISHARES TR RUS 1000 ETF 464287622 810 810 212 0.0095
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.