iShares Trust - iShares Core U.S. Aggregate Bond ETF
US ˙ ARCA ˙ US4642872265

SecurityAGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF
InstitutionBetterment LLC
Latest Disclosed Ownership23,905,376 shares
Latest Disclosed Value $ 2,373,087
Betterment LLC reports 8.95% decrease in ownership of AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF

On May 14, 2026 - Betterment LLC filed a 13F-HR form disclosing ownership of 23,905,376 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF (US:AGG) valued at $2,373,086,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 26,255,484 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF. This represents a change in shares of -8.95% during the quarter. The current value of the position is $2,354,679,536 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)
2026-05-14 2026-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 23,905,376 -2,350,108 -8.95 2,373 -9.50 4.4951
2026-02-12 2025-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 26,255,484 1,687,004 6.87 2,622 6.50 4.9962
2025-11-13 2025-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 24,568,480 1,500,630 6.51 2,463 7.60 4.8676
2025-08-14 2025-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 23,067,850 1,191,388 5.45 2,288 5.73 4.8728
2025-05-15 2025-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 21,876,462 1,983,074 9.97 2,164 12.30 5.1338
2025-02-14 2024-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 19,893,388 1,129,571 6.02 1,928 1.42 4.5955
2024-11-14 2024-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 18,763,817 279,285 1.51 1,900 5.91 4.5352
2024-08-14 2024-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 18,484,532 860,447 4.88 1,794 3.94 4.6484
2024-05-10 2024-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 17,624,085 8,008,077 83.28 1,726 80.92 4.6310
2024-02-09 2023-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 9,616,008 386,693 4.19 954 10.03 2.7479
2023-11-09 2023-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 9,229,315 505,358 5.79 868 1.52 2.7489
2023-08-07 2023-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 8,723,957 416,502 5.01 855 3.26 2.6476
2023-05-15 2023-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 8,307,455 384,936 4.86 828 7.68 2.6805
2023-02-13 2022-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 7,922,519 404,165 5.38 768 -99.90 2.6357
2022-11-14 2022-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 7,518,354 0 0.00 764,466 0.00 2.7341
2022-08-10 2022-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 7,518,354 43,313 0.58 764,466 -4.51 2.7341
2022-05-16 2022-03-31 13F ISHARES TR Common 464287226 7,475,041 279,333 3.88 800,577 -2.47 2.5471
2022-02-15 2021-12-31 13F ISHARES TR Common 464287226 7,195,708 366,591 5.37 820,886 4.68 2.5560
2021-11-15 2021-09-30 13F ISHARES TR Common 464287226 6,829,117 353,534 5.46 784,188 5.00 2.6216
2021-08-10 2021-06-30 13F ISHARES TR Common 464287226 6,475,583 701,178 12.14 746,829 13.62 2.5441
2021-06-01 2021-03-31 13F ISHARES TR Common 464287226 5,774,405 890,577 18.24 657,301 13.87 2.4749
2021-02-12 2020-12-31 13F ISHARES TR Common 464287226 4,883,828 622,499 14.61 577,220 14.73 2.4190
2020-11-10 2020-09-30 13F ISHARES TR Common 464287226 4,261,329 446,697 11.71 503,093 11.57 2.4699
2020-08-11 2020-06-30 13F ISHARES TR Common 464287226 3,814,632 615,182 19.23 450,928 22.16 2.3997
2020-05-14 2020-03-31 13F ISHARES TR Common 464287226 3,199,450 -560,473 -14.91 369,121 -12.63 2.2917
2020-01-31 2019-12-31 13F ISHARES TR Common 464287226 3,759,923 635,854 20.35 422,503 21.46 2.1832
2019-11-07 2019-09-30 13F ISHARES TR Common 464287226 3,124,069 0 0.00 347,865 0.00 1.9719
2019-08-14 2019-06-30 13F ISHARES TR Common 464287226 3,124,069 333,268 11.94 347,865 14.28 1.9719
2019-04-11 2019-03-31 13F ISHARES TR Common 464287226 2,790,801 314,004 12.68 304,393 15.41 1.8399
2019-02-06 2018-12-31 13F ISHARES TR Common 464287226 2,476,797 147,540 6.33 263,754 7.31 1.8522
2018-11-14 2018-09-30 13F ISHARES TR Common 464287226 2,329,257 1,191,465 104.72 245,783 103.18 1.6155
2018-08-13 2018-06-30 13F ISHARES TR Common 464287226 1,137,792 247,148 27.75 120,970 28.14 0.8591
2018-05-14 2018-03-31 13F ISHARES TR Common 464287226 890,644 593,020 199.25 94,408 190.14 0.6863
2018-02-14 2017-12-31 13F ISHARES TR Common 464287226 297,624 293,214 6,648.84 32,539 6,636.85 0.2621
2017-11-17 2017-09-30 13F ISHARES TR Common 464287226 4,410 2,460 126.15 483 125.70 0.0044
2017-08-14 2017-06-30 13F ISHARES TR Common 464287226 1,950 1,950 214 0.0022
2015-08-12 2015-06-30 13F ISHARES TR Common 464287226 0 -78,261 -100.00 0 -100.00
2015-05-12 2015-03-31 13F ISHARES TR Common 464287226 78,261 -175,328 -69.14 8,721 -68.77 0.5049
2015-02-17 2014-12-31 13F ISHARES TR Common 464287226 253,589 253,589 27,925 2.4415
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.