iShares Trust - iShares Core S&P Mid-Cap ETF
US ˙ ARCA ˙ US4642875078

SecurityIJH / iShares Trust - iShares Core S&P Mid-Cap ETF
InstitutionMillburn Ridgefield Corp
Latest Disclosed Ownership8,281,613 shares
Latest Disclosed Value $ 559,257,326
Millburn Ridgefield Corp reports 6.28% increase in ownership of IJH / iShares Trust - iShares Core S&P Mid-Cap ETF

On April 22, 2026 - Millburn Ridgefield Corp filed a 13F-HR form disclosing ownership of 8,281,613 shares of iShares Trust - iShares Core S&P Mid-Cap ETF (US:IJH) valued at $559,257,326 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 7,792,453 shares of iShares Trust - iShares Core S&P Mid-Cap ETF. This represents a change in shares of 6.28% during the quarter. The current value of the position is $612,425,281 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)
2026-04-22 2026-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 8,281,613 489,160 6.28 559,257 8.74 12.0315
2026-02-02 2025-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 7,792,453 -45,905 -0.59 514,302 0.54 12.2521
2025-10-30 2025-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 7,838,358 -548,113 -6.54 511,531 -1.65 12.2107
2025-07-29 2025-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 8,386,471 -545,540 -6.11 520,129 -0.20 12.5217
2025-04-15 2025-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 8,932,011 846,406 10.47 521,183 3.45 12.6275
2025-02-04 2024-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 8,085,605 492,136 6.48 503,814 6.46 12.6055
2024-11-14 2024-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 7,593,469 -111,043 -1.44 473,225 4.96 12.4048
2024-08-14 2024-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 7,704,512 397,533 5.44 450,868 1.59 12.0262
2024-04-26 2024-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 7,306,979 5,836,434 396.89 443,826 8.90 12.2900
2024-02-06 2023-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,470,545 -94,681 -6.05 407,562 4.43 12.4851
2023-11-02 2023-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,565,226 -426,073 -21.40 390,289 -25.04 12.6554
2023-07-21 2023-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,991,299 0 0.00 520,685 4.53 17.7971
2023-04-25 2023-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,991,299 123,518 6.61 498,143 110,352.99 17.5819
2023-01-20 2022-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,867,781 162,306 9.52 452 -99.88 17.2879
2022-11-03 2022-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,705,475 293,460 20.78 373,942 17.06 16.9160
2022-07-19 2022-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,412,015 333,937 30.98 319,440 10.42 17.1755
2022-04-21 2022-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,078,078 109,286 11.28 289,291 5.49 17.1321
2022-01-27 2021-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 968,792 47,076 5.11 274,246 13.10 17.4928
2021-10-21 2021-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 921,716 0 0.00 242,476 -2.11 17.0330
2021-07-16 2021-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 921,716 46,344 5.29 247,693 8.71 17.0451
2021-04-16 2021-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 875,372 -124,930 -12.49 227,842 -0.89 17.6151
2021-03-08 2020-12-31 13F/A-1 ISHARES TR CORE S&P MCP ETF 464287507 1,000,302 -257,428 -20.47 229,899 -1.36 17.5267
2021-01-28 2020-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,000,302 -257,428 229,899 17,583,272.3385
2021-03-08 2020-09-30 13F/A-1 ISHARES TR CORE S&P MCP ETF 464287507 1,257,730 -192,880 -13.30 233,070 -9.64 17.3042
2020-10-29 2020-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,257,730 -192,880 233,070 17,343,208.3038
2021-03-08 2020-06-30 13F/A-1 ISHARES TR CORE S&P MCP ETF 464287507 1,450,610 -575,064 -28.39 257,947 -11.48 17.1246
2020-07-28 2020-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,450,610 -575,064 257,947 17,149,602.5195
2021-03-11 2020-03-31 13F/A-1 ISHARES TR CORE S&P MCP ETF 464287507 2,025,674 -103,028 -4.84 291,413 -33.49 17.4204
2020-04-28 2020-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 2,025,674 -103,028 291,413 17,422,661.2436
2020-01-30 2019-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 2,128,702 -127,085 -5.63 438,129 0.51 17.0194
2019-10-31 2019-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 2,255,787 103,776 4.82 435,886 4.27 18.4516
2019-07-18 2019-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 2,152,011 229,851 11.96 418,050 14.83 17.7356
2019-04-18 2019-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,922,160 -175,521 -8.37 364,057 4.51 16.8855
2019-01-28 2018-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 2,097,681 283,713 15.64 348,341 -4.60 17.4187
2018-11-01 2018-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,813,968 225,997 14.23 365,134 18.05 17.0170
2018-08-07 2018-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,587,971 -87,935 -5.25 309,305 -1.60 15.2702
2018-05-01 2018-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,675,906 270,573 19.25 314,350 17.86 15.5804
2018-01-22 2017-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,405,333 440,532 45.66 266,704 54.52 14.0060
2017-10-23 2017-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 964,801 110,375 12.92 172,603 16.13 11.1611
2017-07-21 2017-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 854,426 421,163 97.21 148,627 100.35 10.3202
2017-04-28 2017-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 433,263 322,620 291.59 74,183 305.50 7.1534
2017-02-06 2016-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 110,643 110,643 18,294 2.6799
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.