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

SecurityIJH / iShares Trust - iShares Core S&P Mid-Cap ETF
InstitutionBlackRock, Inc.
Latest Disclosed Ownership27,964,904 shares
Latest Disclosed Value $ 1,888,470,015
BlackRock, Inc. reports 4.77% increase in ownership of IJH / iShares Trust - iShares Core S&P Mid-Cap ETF

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 27,964,904 shares of iShares Trust - iShares Core S&P Mid-Cap ETF (US:IJH) valued at $1,888,469,967 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 26,691,520 shares of iShares Trust - iShares Core S&P Mid-Cap ETF. This represents a change in shares of 4.77% during the quarter. The current value of the position is $2,110,231,656 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 TR CORE S&P MCP ETF 464287507 27,964,904 1,273,384 4.77 1,888,470 7.20 0.0025
2026-02-12 2025-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 26,691,520 1,251,907 4.92 1,761,640 6.11 0.0298
2025-11-12 2025-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 25,439,613 -142,181 -0.56 1,660,189 4.64 0.0291
2025-08-12 2025-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 25,581,794 797,396 3.22 1,586,583 9.71 0.0302
2025-05-02 2025-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 24,784,398 111,751 0.45 1,446,170 -5.93 0.0304
2025-02-07 2024-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 24,672,647 2,948,941 13.57 1,537,353 13.56 0.0311
2024-11-13 2024-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 21,723,706 741,622 3.53 1,353,821 10.26 0.0284
2024-08-13 2024-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 20,982,084 1,006,970 5.04 1,227,872 1.20 0.0278
2024-05-10 2024-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 19,975,114 15,923,020 392.96 1,213,288 8.04 0.0282
2024-02-13 2023-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 4,052,094 114,333 2.90 1,123,038 14.38 0.0286
2023-11-13 2023-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 3,937,761 293,157 8.04 981,881 3.03 0.0282
2023-08-11 2023-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 3,644,604 -634,833 -14.83 952,991 -10.98 0.0263
2023-05-12 2023-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 4,279,437 -717,527 -14.36 1,070,544 -11.43 0.0316
2023-02-13 2022-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 4,996,964 -440,106 -8.09 1,208,716 1.39 0.0379
2022-11-14 2022-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,437,070 -237,835 -4.19 1,192,131 -7.14 0.0405
2022-08-12 2022-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,674,905 -135,584 -2.33 1,283,833 -17.66 0.0412
2022-05-12 2022-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,810,489 -145,312 -2.44 1,559,186 -7.52 0.0420
2022-02-10 2021-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,955,801 43,958 0.74 1,685,968 8.41 0.0429
2021-11-09 2021-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,911,843 -73,622 -1.23 1,555,229 -3.31 0.0435
2021-08-11 2021-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,985,465 129,655 2.21 1,608,475 5.53 0.0448
2021-05-07 2021-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,855,810 473,229 8.79 1,524,151 23.21 0.0448
2021-02-05 2020-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,382,581 159,271 3.05 1,237,078 27.81 0.0395
2020-11-06 2020-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,223,310 -340,420 -6.12 967,930 -2.16 0.0357
2020-08-14 2020-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,563,730 -115,715 -2.04 989,341 21.09 0.0395
2020-05-01 2020-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,679,445 327,884 6.13 817,046 -25.82 0.0400
2020-02-13 2019-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,351,561 -93,428 -1.72 1,101,458 4.69 0.0422
2019-11-08 2019-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,444,989 289,595 5.62 1,052,134 5.06 0.0442
2019-08-22 2019-06-30 13F/A-1 ISHARES TR CORE S&P MCP ETF 464287507 5,155,394 -213,182 -3.97 1,001,487 -1.51 0.0428
2019-08-13 2019-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,155,394 -213,182 1,001,487
2019-05-09 2019-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,368,576 -149,083 -2.70 1,016,808 10.97 0.0454
2019-02-08 2018-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 5,517,659 105,043 1.94 916,263 -15.90 0.0463
2018-11-09 2018-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 5,412,616 852,283 18.69 1,089,505 22.66 0.0471
2018-08-09 2018-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 4,560,333 172,560 3.93 888,261 7.93 0.0409
2018-05-09 2018-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 4,387,773 -103,812 -2.31 823,015 -3.45 0.0393
2018-02-09 2017-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 4,491,585 191,686 4.46 852,413 10.81 0.0406
2017-11-14 2017-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 4,299,899 -1,971,348 -31.43 769,252 -29.48 0.0388
2017-08-10 2017-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 6,271,247 211,641 3.49 1,090,883 5.14 0.0579
2017-05-12 2017-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 6,059,606 4,701,859 346.30 1,037,526 362.17 0.0570
2017-02-10 2016-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,357,747 -98,640 -6.77 224,490 -0.37 0.3177
2016-11-08 2016-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,456,387 41,317 2.92 225,317 6.58 0.3235
2016-08-10 2016-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 1,415,070 89,374 6.74 211,397 10.59 0.3181
2016-05-10 2016-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,325,696 217,880 19.67 191,152 23.85 0.3075
2016-02-11 2015-12-31 13F ISHARES TR CORE S&P MCP ETF 464287507 1,107,816 324,751 41.47 154,341 44.28 0.2264
2015-11-13 2015-09-30 13F ISHARES TR CORE S&P MCP ETF 464287507 783,065 661,301 543.10 106,975 485.78 0.1677
2015-08-07 2015-06-30 13F ISHARES TR CORE S&P MCP ETF 464287507 121,764 114,059 1,480.32 18,262 1,459.52 0.0271
2015-05-13 2015-03-31 13F ISHARES TR CORE S&P MCP ETF 464287507 7,705 7,705 1,171 0.0016
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.