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

SecurityAGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF
InstitutionSimplify Asset Management Inc.
Latest Disclosed Ownership4,100,066 shares
Latest Disclosed Value $ 407,013,552
Simplify Asset Management Inc. reports 46.42% increase in ownership of AGG / iShares Trust - iShares Core U.S. Aggregate Bond ETF

On April 27, 2026 - Simplify Asset Management Inc. filed a 13F-HR form disclosing ownership of 4,100,066 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF (US:AGG) valued at $407,013,552 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,800,131 shares of iShares Trust - iShares Core U.S. Aggregate Bond ETF. This represents a change in shares of 46.42% during the quarter. The current value of the position is $403,856,501 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-27 2026-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 4,100,066 1,299,935 46.42 407,014 45.53 6.2464
2026-02-09 2025-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 2,800,131 -2,532 -0.09 279,677 -0.46 4.5657
2025-10-20 2025-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 2,802,663 -306,677 -9.86 280,967 -8.91 5.1752
2025-08-07 2025-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 3,109,340 62,496 2.05 308,447 2.34 15.5174
2025-05-13 2025-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 3,046,844 727,206 31.35 301,394 34.09 11.2889
2025-02-11 2024-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 2,319,638 909,907 64.54 224,773 57.44 11.1046
2024-11-12 2024-09-30 13F/A-1 ISHARES TR CORE US AGGBD ET 464287226 1,409,731 -282,860 -16.71 142,763 -13.11 6.6511
2024-11-06 2024-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 1,409,731 -282,860 142,763 6.6427
2024-08-12 2024-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 1,692,591 1,101,573 186.39 164,300 183.84 11.0165
2024-05-13 2024-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 591,018 510,618 635.10 57,884 625.45 3.4451
2024-02-12 2023-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 80,400 11,500 16.69 7,980 23.15 0.7154
2023-11-14 2023-09-30 13F ISHARES TR CORE US AGGBD ET 464287226 68,900 59,265 615.10 6,479 587.06 0.7407
2023-08-14 2023-06-30 13F ISHARES TR CORE US AGGBD ET 464287226 9,635 3,414 54.88 944 52.34 0.1243
2023-05-10 2023-03-31 13F ISHARES TR CORE US AGGBD ET 464287226 6,221 -9,509 -60.45 620 -59.41 0.0889
2023-02-10 2022-12-31 13F ISHARES TR CORE US AGGBD ET 464287226 15,730 -12,456 -44.19 1,526 -43.83 0.2351
2022-11-14 2022-09-30 13F ISHARES BARCLAYS AGGREGATE CORE US AGGBD ET 464287226 28,186 17,004 152.07 2,715 138.79 0.2884
2022-08-11 2022-06-30 13F ISHARES BARCLAYS AGGREGATE CORE US AGGBD ET 464287226 11,182 419 3.89 1,137 -1.39 0.0434
2022-05-13 2022-03-31 13F ISHARES BARCLAYS AGGREGATE CORE US AGGBD ET 464287226 10,763 10,763 1,153 0.0369
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.