iShares Trust - iShares Core U.S. Aggregate Bond ETF
CL ˙ SNSE ˙ US4642872265
SecurityCL:AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF
InstitutionFirst Business Financial Services, Inc.
Latest Disclosed Ownership375,696 shares
Latest Disclosed Value $ 37,295,342
First Business Financial Services, Inc. reports 1.53% decrease in ownership of AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF

On May 1, 2026 - First Business Financial Services, Inc. filed a 13F-HR form disclosing ownership of 375,696 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF (CL:AGG) valued at $37,295,342 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 381,535 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF. This represents a change in shares of -1.53% during the quarter.

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)
2026-05-01 2026-03-31 13F iShares Core US Aggregate Bond Com 464287226 375,696 -5,839 -1.53 37,295 -2.13 3.3159
2026-02-06 2025-12-31 13F iShares Core US Aggregate Bond Com 464287226 381,535 18,241 5.02 38,108 4.63 3.4992
2025-10-30 2025-09-30 13F iShares Core US Aggregate Bond Com 464287226 363,294 6,390 1.79 36,420 2.87 3.3411
2025-07-31 2025-06-30 13F iShares Core US Aggregate Bond Com 464287226 356,904 -22,861 -6.02 35,405 -5.76 3.1929
2025-05-02 2025-03-31 13F iShares Core US Aggregate Bond Com 464287226 379,765 -36,856 -8.85 37,566 -6.95 3.6940
2025-02-06 2024-12-31 13F iShares Core US Aggregate Bond Com 464287226 416,621 5,346 1.30 40,371 -3.07 3.9915
2024-11-06 2024-09-30 13F iShares Core US Aggregate Bond Com 464287226 411,275 -51,084 -11.05 41,650 -7.20 4.1681
2024-08-02 2024-06-30 13F iShares Core US Aggregate Bond Com 464287226 462,359 1,660 0.36 44,881 -0.53 4.7581
2024-05-15 2024-03-31 13F/A-1 iShares Core US Aggregate Bond Common 464287226 460,699 4,151 0.91 45,121 -0.42 4.8385
2024-05-06 2024-03-31 13F iShares Core US Aggregate Bond Common 464287226 456,548 0 45,312 5.2679
2024-02-14 2023-12-31 13F iShares Core US Aggregate Bond Common 464287226 456,548 6,652 1.48 45,312 7.10 5.2679
2023-11-14 2023-09-30 13F iShares Core US Aggregate Bond Common 464287226 449,896 -8,186 -1.79 42,308 -5.71 5.3911
2023-08-07 2023-06-30 13F iShares Core US Aggregate Bond Common 464287226 458,082 -16,806 -3.54 44,869 -5.17 5.5346
2023-05-09 2023-03-31 13F iShares Core US Aggregate Bond Common 464287226 474,888 13,661 2.96 47,318 107,438.64 5.9385
2023-02-02 2022-12-31 13F iShares Core US Aggregate Bond Common 464287226 461,227 -58,354 -11.23 45 -99.91 6.0113
2022-11-15 2022-09-30 13F iShares Core US Aggregate Bond Common 464287226 519,581 -10,688 -2.02 50,056 -7.16 7.1477
2022-08-02 2022-06-30 13F iShares Core US Aggregate Bond Common 464287226 530,269 -5,160 -0.96 53,918 -5.97 7.2623
2022-05-09 2022-03-31 13F iShares Core US Aggregate Bond Common 464287226 535,429 1,012 0.19 57,344 -5.94 6.3404
2022-02-10 2021-12-31 13F iShares Core US Aggregate Bond Common 464287226 534,417 587 0.11 60,966 -0.54 6.4510
2021-10-26 2021-09-30 13F iShares Core US Aggregate Bond Common 464287226 533,830 9,532 1.82 61,300 1.38 7.0142
2021-07-20 2021-06-30 13F iShares Core US Aggregate Bond Common 464287226 524,298 9,258 1.80 60,467 3.14 7.0681
2021-04-20 2021-03-31 13F iShares Core US Aggregate Bond Common 464287226 515,040 38,793 8.15 58,627 4.16 7.7822
2021-01-28 2020-12-31 13F iShares Core US Aggregate Bond Common 464287226 476,247 12,089 2.60 56,288 2.72 8.1787
2020-11-04 2020-09-30 13F iShares Core US Aggregate Bond Common 464287226 464,158 7,954 1.74 54,798 1.61 9.1464
2020-08-12 2020-06-30 13F iShares Core US Aggregate Bond Com 464287226 456,204 69,143 17.86 53,928 20.77 9.6667
2020-05-01 2020-03-31 13F iShares Core US Aggregate Bond Common 464287226 387,061 14,190 3.81 44,655 6.58 8.8906
2020-02-10 2019-12-31 13F iShares Core US Aggregate Bond Common 464287226 372,871 -3,126 -0.83 41,900 -1.53 6.6311
2019-11-05 2019-09-30 13F iShares Core US Aggregate Bond Common 464287226 375,997 1,763 0.47 42,552 2.11 7.2740
2019-07-24 2019-06-30 13F iShares Core US Aggregate Bond Common 464287226 374,234 8,939 2.45 41,671 4.59 7.2397
2019-05-03 2019-03-31 13F iShares Core US Aggregate Bond Common 464287226 365,295 13,099 3.72 39,843 6.23 7.1025
2019-02-06 2018-12-31 13F iShares Core US Aggregate Bond Common 464287226 352,196 -10,642 -2.93 37,505 -2.04 6.3808
2018-11-01 2018-09-30 13F iShares Core US Aggregate Bond Common 464287226 362,838 14,552 4.18 38,287 3.39 6.0343
2018-08-06 2018-06-30 13F iShares Core US Aggregate Bond Common 464287226 348,286 18,223 5.52 37,030 4.61 6.6332
2018-05-14 2018-03-31 13F iShares Core US Aggregate Bond Common 464287226 330,063 -200,560 -37.80 35,399 -38.98 6.5743
2018-02-07 2017-12-31 13F iShares Core US Aggregate Bond Common 464287226 530,623 23,196 4.57 58,013 4.32 10.6361
2017-10-26 2017-09-30 13F iShares Core US Aggregate Bond COMMON STOCK 464287226 507,427 14,083 2.85 55,609 2.93 11.0576
2017-08-09 2017-06-30 13F iShares Core US Aggregate Bond COMMON STOCK 464287226 493,344 8,043 1.66 54,026 2.61 11.0866
2017-05-11 2017-03-31 13F iShares Core US Aggregate Bond COMMON STOCK 464287226 485,301 58,266 13.64 52,650 14.10 11.0991
2017-02-10 2016-12-31 13F iShares Core US Aggregate Bond COMMON STOCK 464287226 427,035 9,341 2.24 46,145 -1.73 10.6944
2016-11-02 2016-09-30 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 417,694 14,638 3.63 46,957 3.45 11.4824
2016-07-28 2016-06-30 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 403,056 64,259 18.97 45,391 20.89 11.6799
2016-05-10 2016-03-31 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 338,797 -92,331 -21.42 37,548 -19.37 10.2335
2016-02-09 2015-12-31 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 431,128 -91,583 -17.52 46,566 -18.70 13.9272
2015-11-05 2015-09-30 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 522,711 93,832 21.88 57,279 22.78 18.3376
2015-08-03 2015-06-30 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 428,879 29,539 7.40 46,653 4.84 13.5414
2015-05-05 2015-03-31 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 399,340 399,340 0.00 44,498 13.4219
2015-02-03 2014-12-31 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 0 -273,238 -100.00 0 -100.00
2014-11-04 2014-09-30 13F ISHARES CORE MUTUAL FUNDS/FIXED IN 464287226 273,238 2,266 0.84 29,813 0.57 10.7987
2014-08-05 2014-06-30 13F ISHARES MUTUAL FUNDS/FIXED IN 464287226 270,972 -20,838 -7.14 29,644 -5.86 11.0123
2014-05-06 2014-03-31 13F ISHARES MUTUAL FUNDS/FIXED IN 464287226 291,810 155,585 114.21 31,489 117.20 12.5243
2014-01-31 2013-12-31 13F ISHARES MUTUAL FUNDS/FIXED IN 464287226 136,225 -188,061 -57.99 14,498 -58.30 6.0332
2013-10-25 2013-09-30 13F ISHARES MUTUAL FUNDS/FIXED IN 464287226 324,286 -18,922 -5.51 34,764 -5.52 18.5259
2013-08-14 2013-06-30 13F ISHARES MUTUAL FUNDS/FIXED IN 464287226 343,208 343,208 36,795 21.5643
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.