iShares Trust - iShares S&P 100 ETF
US ˙ ARCA ˙ US4642871010

SecurityOEF / iShares Trust - iShares S&P 100 ETF
InstitutionMorgan Stanley
Latest Disclosed Ownership1,282,727 shares
Latest Disclosed Value $ 407,997,343
Morgan Stanley reports 49.81% decrease in ownership of OEF / iShares Trust - iShares S&P 100 ETF

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,282,727 shares of iShares Trust - iShares S&P 100 ETF (US:OEF) valued at $407,996,977 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 2,555,823 shares of iShares Trust - iShares S&P 100 ETF. This represents a change in shares of -49.81% during the quarter. The current value of the position is $468,041,428 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)
2026-05-15 2026-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,282,727 -1,273,096 -49.81 407,997 -53.46 0.0246
2026-05-27 2025-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 2,555,823 147,326 6.12 876,571 9.35 0.0523
2026-02-13 2025-12-31 13F ISHARES TR S&P 100 ETF 464287101 2,555,823 147,326 876,571 0.0523
2026-05-27 2025-09-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 2,408,497 532,664 28.40 801,645 40.42 0.0485
2025-11-14 2025-09-30 13F ISHARES TR S&P 100 ETF 464287101 2,408,497 532,664 801,645 0.0485
2025-08-15 2025-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,875,833 271,221 16.90 570,911 31.37 0.0372
2025-05-15 2025-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,604,612 263,680 19.66 434,577 12.20 0.0311
2025-05-15 2024-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,340,932 156,783 13.24 387,329 18.19 0.0271
2025-02-14 2024-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,340,932 156,783 387,329 0.0271
2025-05-14 2024-09-30 13F/A-2 ISHARES TR S&P 100 ETF 464287101 1,184,149 -45,842 -3.73 327,726 0.81 0.0238
2025-02-14 2024-09-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,184,149 -45,842 327,726 0.0238
2024-11-14 2024-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,184,149 -45,842 327,726 0.0028
2025-05-14 2024-06-30 13F/A-2 ISHARES TR S&P 100 ETF 464287101 1,229,991 64,438 5.53 325,087 12.73 0.0252
2024-10-17 2024-06-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,229,991 64,438 325,087 0.0252
2024-08-14 2024-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,229,991 64,438 325,087 0.0252
2024-10-17 2024-03-31 13F/A-2 ISHARES TR S&P 100 ETF 464287101 1,165,553 -371,093 -24.15 288,370 -15.99 0.0231
2024-08-16 2024-03-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,165,553 -371,093 288,370 0.0027
2024-05-15 2024-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,165,553 -371,093 288,370 0.0231
2024-08-16 2023-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,536,646 469,128 43.95 343,272 60.27 0.0303
2024-02-13 2023-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,536,646 469,128 343,272 0.0303
2023-11-15 2023-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,067,518 14,774 1.40 214,187 -1.74 0.0218
2023-08-14 2023-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,052,744 30,623 3.00 217,981 14.02 0.0215
2023-05-15 2023-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,022,121 -23,890 -2.28 191,178 7.15 0.0205
2023-02-14 2022-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,046,011 -86,257 -7.62 178,418 -3.03 0.0203
2022-11-14 2022-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,132,268 -17,042 -1.48 183,994 -7.18 0.0251
2022-10-27 2022-06-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,149,310 -48,807 -4.07 198,222 -20.66 0.0257
2022-08-15 2022-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,149,310 -48,807 198,222 0.0052
2022-10-27 2022-03-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,198,117 52,545 4.59 249,832 -0.48 0.0337
2022-05-13 2022-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,198,117 52,545 249,832 0.0337
2022-02-14 2021-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,145,572 -2,387 -0.21 251,029 10.75 0.0310
2021-11-15 2021-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,147,959 85,377 8.03 226,653 8.73 0.0305
2021-08-23 2021-06-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,062,582 -39,256 -3.56 208,458 5.21 0.0275
2021-08-16 2021-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,062,582 -39,256 208,458 0.0057
2021-05-17 2021-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,101,838 44,316 4.19 198,143 9.16 0.0291
2021-02-16 2020-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,057,522 -89,652 -7.82 181,514 1.60 0.0280
2020-11-13 2020-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,147,174 -44,907 -3.77 178,650 5.23 0.0346
2020-08-14 2020-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,192,081 45,181 3.94 169,777 24.79 0.0376
2020-05-26 2020-03-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,146,900 242,896 26.87 136,046 4.44 0.0370
2020-05-15 2020-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,146,900 242,896 136,046 10,451.1689
2020-02-14 2019-12-31 13F ISHARES TR S&P 100 ETF 464287101 904,004 -16,755 -1.82 130,258 7.59 0.0303
2019-11-14 2019-09-30 13F ISHARES TR S&P 100 ETF 464287101 920,759 -35,220 -3.68 121,071 -2.27 0.0320
2019-08-14 2019-06-30 13F ISHARES TR S&P 100 ETF 464287101 955,979 -141,819 -12.92 123,885 -9.92 0.0330
2019-05-15 2019-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,097,798 113,191 11.50 137,532 25.24 0.0389
2019-02-14 2018-12-31 13F ISHARES TR S&P 100 ETF 464287101 984,607 8,559 0.88 109,813 -13.20 0.0329
2019-04-23 2018-09-30 13F/A-2 ISHARES TR S&P 100 ETF 464287101 976,048 -73,851 -7.03 126,515 0.75 0.0317
2018-11-20 2018-09-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 976,048 0 126,515 0.0317
2018-11-14 2018-09-30 13F ISHARES TR S&P 100 ETF 464287101 976,048 -73,851 126,515
2019-04-23 2018-06-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,049,899 -54,274 -4.92 125,568 -1.96 0.0339
2018-08-14 2018-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,049,899 -54,274 125,568
2019-04-23 2018-03-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,104,173 -97,514 -8.11 128,073 -10.17 0.0355
2018-05-14 2018-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,104,173 -97,514 128,073
2019-04-23 2017-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,201,687 773 0.06 142,567 6.66 0.0390
2018-02-14 2017-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,201,687 773 142,567
2017-11-14 2017-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,200,914 -51,279 -4.10 133,662 -0.15 0.0400
2017-08-11 2017-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,252,193 771 0.06 133,859 2.16 0.0404
2017-05-22 2017-03-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,251,422 -63,979 -4.86 131,024 0.31 0.0403
2017-05-12 2017-03-31 13F ISHARES TR S&P 100 ETF 464287101 1,251,422 131,024
2017-02-22 2016-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,315,401 -357,727 -21.38 130,620 -18.62 0.0427
2017-02-13 2016-12-31 13F ISHARES TR S&P 100 ETF 464287101 1,315,401 130,620
2016-11-10 2016-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,673,128 -43,004 -2.51 160,504 0.67 0.0548
2016-08-12 2016-06-30 13F ISHARES TR S&P 100 ETF 464287101 1,716,132 -1,271,736 -42.56 159,429 -41.60 0.0576
2016-05-12 2016-03-31 13F ISHARES TR S&P 100 ETF 464287101 2,987,868 -675,517 -18.44 273,001 -18.26 0.1051
2016-02-09 2015-12-31 13F ISHARES TR S&P 100 ETF 464287101 3,663,385 2,268,648 162.66 333,991 182.45 0.1209
2016-02-08 2015-09-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,394,737 -1,089,074 -43.85 118,246 -47.59 0.0437
2015-11-09 2015-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,394,737 118,246
2015-08-12 2015-06-30 13F ISHARES TR S&P 100 ETF 464287101 2,483,811 -336,143 -11.92 225,630 -11.35 0.0782
2015-05-14 2015-03-31 13F ISHARES TR S&P 100 ETF 464287101 2,819,954 -2,368,608 -45.65 254,529 -46.06 0.0937
2015-02-13 2014-12-31 13F ISHARES TR S&P 100 ETF 464287101 5,188,562 3,358,430 183.51 471,848 192.45 0.1725
2014-12-16 2014-09-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 1,830,132 164,537 9.88 161,344 16.98 0.0620
2014-11-14 2014-09-30 13F ISHARES TR S&P 100 ETF 464287101 1,830,132 161,344
2014-05-13 2014-03-31 13F ISHARES S&P 100 ETF 464287101 1,665,595 55,102 3.42 137,928 4.00 0.0578
2014-02-13 2013-12-31 13F ISHARES S&P 100 ETF 464287101 1,610,493 -38,566 -2.34 132,625 7.46 0.0564
2013-11-13 2013-09-30 13F ISHARES S&P 100 INDEX FUND COM 464287101 1,649,059 982 0.06 123,415 4.08 0.0583
2013-08-08 2013-06-30 13F ISHARES S&P 100 INDEX FUND COM 464287101 1,648,077 1,648,077 118,579 0.0598
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.