iShares Trust - iShares S&P Mid-Cap 400 Growth ETF
US ˙ ARCA ˙ US4642876068

SecurityIJK / iShares Trust - iShares S&P Mid-Cap 400 Growth ETF
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership20,800 shares
Latest Disclosed Value $ 2,092,896
Renaissance Technologies Llc ownership in IJK / iShares Trust - iShares S&P Mid-Cap 400 Growth ETF

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 20,800 shares of iShares Trust - iShares S&P Mid-Cap 400 Growth ETF (US:IJK) valued at $2,092,896 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of iShares Trust - iShares S&P Mid-Cap 400 Growth ETF. The current value of the position is $2,403,856 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)
2026-05-14 2026-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 20,800 20,800 2,093 0.0033
2025-11-13 2025-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -2,300 -100.00 0 -100.00
2025-08-13 2025-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 2,300 2,300 209 0.0003
2025-05-14 2025-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -16,900 -100.00 0 -100.00
2025-02-13 2024-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 16,900 16,900 1,537 0.0023
2024-02-13 2023-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -7,000 -100.00 0 0.0000
2023-11-14 2023-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 7,000 -1,900 -21.35 1 0.0009
2023-08-11 2023-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 8,900 8,900 1 0.0010
2023-05-12 2023-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -9,800 -100.00 0 0.0000
2023-02-13 2022-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 9,800 9,800 1 0.0009
2022-11-14 2022-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -11,600 -100.00 0 -100.00
2022-08-12 2022-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 11,600 7,000 152.17 739 108.17 0.0009
2022-05-13 2022-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 4,600 -4,300 -48.31 355 -53.23 0.0004
2022-02-11 2021-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 8,900 3,300 58.93 759 71.33 0.0009
2021-11-12 2021-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 5,600 -7,500 -57.25 443 -58.21 0.0006
2021-08-13 2021-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 13,100 -4,400 -25.14 1,060 -22.68 0.0013
2021-05-13 2021-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 17,500 17,500 33.59 1,371 29.34 0.0017
2021-02-10 2020-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -1,700 -100.00 0 -100.00
2020-11-13 2020-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 1,700 -600 -26.09 407 -20.97 0.0004
2020-08-13 2020-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 2,300 2,300 35.29 515 26.54 0.0004
2020-02-12 2019-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 0 -1,300 -100.00 0 -100.00
2019-11-13 2019-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 1,300 -1,600 -55.17 291 -55.64 0.0002
2019-08-12 2019-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 2,900 200 7.41 656 10.81 0.0006
2019-05-14 2019-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 2,700 1,600 145.45 592 181.90 0.0005
2019-02-12 2018-12-31 13F ISHARES TR S&P MC 400GR ETF 464287606 1,100 -3,400 -75.56 210 -79.96 0.0002
2018-11-13 2018-09-30 13F ISHARES TR S&P MC 400GR ETF 464287606 4,500 800 21.62 1,048 25.96 0.0011
2018-08-13 2018-06-30 13F/A-1 ISHARES TR S&P MC 400GR ETF 464287606 3,700 1,700 85.00 832 90.39 0.0009
2018-08-13 2018-06-30 13F ISHARES TR S&P MC 400GR ETF 464287606 2,000 437
2018-05-14 2018-03-31 13F ISHARES TR S&P MC 400GR ETF 464287606 2,000 2,000 437 0.0005
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.