iShares Trust - iShares Core U.S. Aggregate Bond ETF
CL ˙ SNSE ˙ US4642872265
SecurityCL:AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF
InstitutionRhumbline Advisers
Latest Disclosed Ownership394,918 shares
Latest Disclosed Value $ 39,203,508
Rhumbline Advisers reports 17.64% decrease in ownership of AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 394,918 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF (CL:AGG) valued at $39,203,508 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 479,476 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF. This represents a change in shares of -17.64% 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)
2026-05-12 2026-03-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 394,918 -84,558 -17.64 39,204 -18.14 0.0335
2026-02-13 2025-12-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 479,476 -38,922 -7.51 47,890 -7.85 0.0387
2025-11-06 2025-09-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 518,398 136,061 35.59 51,969 37.02 0.0417
2025-08-12 2025-06-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 382,337 -163,761 -29.99 37,928 -29.79 0.0325
2025-05-29 2025-03-31 13F/A-1 ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 546,098 71,734 15.12 54,020 17.52 0.0505
2025-04-08 2025-03-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 546,098 71,734 54,020 0.0505
2025-05-29 2024-12-31 13F/A-1 ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 474,364 29,024 6.52 45,966 1.92 0.0411
2025-01-30 2024-12-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 474,364 29,024 45,966 0.0411
2024-11-12 2024-09-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 445,340 86,463 24.09 45,100 29.46 0.0407
2024-08-01 2024-06-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 358,877 94,533 35.76 34,836 34.56 0.0327
2024-05-09 2024-03-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 264,344 -253,601 -48.96 25,890 -49.64 0.0249
2024-02-08 2023-12-31 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 517,945 94,294 22.26 51,406 29.03 0.0539
2023-11-09 2023-09-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 423,651 -108,569 -20.40 39,840 -23.58 0.0462
2023-08-08 2023-06-30 13F ISHARES LEHMAN AGGREGATE BOND FUND ETF COM 464287226 532,220 -118,894 -18.26 52,131 81,353.13 0.0584
2023-05-11 2023-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 651,114 138,736 27.08 65 -99.87 0.0800
2023-02-14 2022-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 512,378 47,914 10.32 49,696 11.06 0.0668
2022-11-10 2022-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 464,464 217,112 87.77 44,746 77.91 0.0667
2022-08-11 2022-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 247,352 -29,850 -10.77 25,151 -15.28 0.0367
2022-05-12 2022-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 277,202 -119,986 -30.21 29,688 -34.48 0.0382
2022-02-10 2021-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 397,188 -3,145 -0.79 45,311 -1.43 0.0555
2021-11-12 2021-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 400,333 -16,724 -4.01 45,970 -4.43 0.0622
2021-08-05 2021-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 417,057 -38,637 -8.48 48,099 -7.27 0.0631
2021-05-06 2021-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 455,694 -2,649 -0.58 51,872 -4.25 0.0705
2021-02-10 2020-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 458,343 91,128 24.82 54,172 24.96 0.0748
2020-11-12 2020-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 367,215 99,318 37.07 43,353 36.90 0.0679
2020-08-13 2020-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 267,897 199,998 294.55 31,668 304.24 0.0529
2020-05-06 2020-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 67,899 -184,551 -73.10 7,834 -72.38 0.0164
2020-02-05 2019-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 252,450 -36,625 -12.67 28,368 -13.29 0.0474
2019-10-23 2019-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 289,075 47,991 19.91 32,715 21.87 0.0598
2019-08-14 2019-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 241,084 29,713 14.06 26,845 16.44 0.0504
2019-05-01 2019-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 211,371 -39,567 -15.77 23,054 -13.73 0.0446
2019-01-31 2018-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 250,938 4,626 1.88 26,722 2.81 0.0581
2018-11-07 2018-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 246,312 -2,757 -1.11 25,991 -1.85 0.0502
2018-08-06 2018-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 249,069 -80,304 -24.38 26,481 -25.04 0.0534
2018-05-02 2018-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 329,373 121,660 58.57 35,325 55.56 0.0738
2018-02-09 2017-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 207,713 59,421 40.07 22,709 39.74 0.0461
2017-11-06 2017-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 148,292 8,825 6.33 16,251 6.40 0.0353
2017-08-02 2017-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 139,467 -97,516 -41.15 15,273 -40.60 0.0349
2017-05-02 2017-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 236,983 150,225 173.15 25,710 174.24 0.0601
2017-01-27 2016-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 86,758 -180,003 -67.48 9,375 -68.74 0.0238
2016-11-08 2016-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 266,761 140,252 110.86 29,989 110.58 0.0826
2016-08-11 2016-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 126,509 82,022 184.37 14,241 188.86 0.0422
2016-05-02 2016-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 44,487 -35,370 -44.29 4,930 -42.84 0.0153
2016-02-03 2015-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 79,857 50,570 172.67 8,625 168.78 0.0278
2015-11-04 2015-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 29,287 -19,679 -40.19 3,209 -39.79 0.0109
2015-08-04 2015-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 48,966 7,306 17.54 5,330 14.82 0.0170
2015-05-12 2015-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 41,660 22,350 115.74 4,642 118.34 0.0134
2015-02-06 2014-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 19,310 8,406 77.09 2,126 78.66 0.0062
2014-11-12 2014-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 10,904 -37,133 -77.30 1,190 -77.35 0.0036
2014-08-06 2014-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 48,037 -45,352 -48.56 5,255 -47.87 0.0154
2014-05-06 2014-03-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 93,389 29,989 47.30 10,081 49.39 0.0299
2014-02-03 2013-12-31 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 63,400 51,738 443.65 6,748 439.84 0.0199
2013-11-05 2013-09-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 11,662 -17,653 -60.22 1,250 -60.23 0.0039
2013-08-07 2013-06-30 13F ISHARES LEHMAN AGGREGATE BOND COM 464287226 29,315 29,315 3,143 0.0101
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.