Latest Period
Q1 2026
Security Snapshot
iShares Core 1-5 Year USD Bond ETF - Common Stock (ISTB) Institutional Ownership
CUSIP: 46432F859
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
396
Shares (Excl. Options)
72,116,842
Price
$48.46
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- Security type / class
- Equity / Common Stock
- Symbol
- ISTB
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 72,116,842
- Total 13F value
- $3,495,346,139
- Portfolio coverage rank
- 0.03%
- Share change
- +2,311,387
- Value change
- +$112,514,499
- Number of holders
- 396
- Shares outstanding
- 97,285,226
- SEC-reported price per share
- $48.25
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ISTB - iShares Core 1-5 Year USD Bond ETF - Common Stock is tracked under CUSIP 46432F859.
- 396 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 389 to 396 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $3,333,006,111 to $3,495,346,139.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 396 institutions filings for Q1 2026.
Security key
46432F859
Latest holder period
Q1 2026
13F holders
396
13D/G owners
1
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 46432F859:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
ISTB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock Portfolio Management LLC | 5.3% | -24% | $251,360,704 | -$61,646,325 | 5,156,117 | -20% | BlackRock Portfolio Management LLC | 31 Dec 2025 |
As of 31 Mar 2026, 396 institutional investors reported holding 72,116,842 shares of iShares Core 1-5 Year USD Bond ETF - Common Stock (ISTB). This represents 74% of the company’s total 97,285,226 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
50%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Acorns Advisers, LLC | 12% | 11,821,596 | +2.3% | 4.3% | $572,875,000 |
| BlackRock, Inc. | 5.9% | 5,727,958 | +3.6% | 0% | $277,576,845 |
| STATE OF WISCONSIN INVESTMENT BOARD | 5.6% | 5,415,025 | +1.9% | 0.6% | $262,412,112 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.6% | 2,568,895 | +9.5% | 0.02% | $124,488,652 |
| RAYMOND JAMES FINANCIAL INC | 2.4% | 2,289,658 | +3% | 0.03% | $110,956,832 |
| JONES FINANCIAL COMPANIES LLLP | 1.8% | 1,762,477 | +23% | 0.04% | $85,092,378 |
| SPINNAKER TRUST | 1.4% | 1,380,236 | -0.29% | 3.7% | $66,886,232 |
| Seven Springs Wealth Group, LLC | 1.4% | 1,356,366 | 15% | $65,729,496 | |
| Mariner, LLC | 1.4% | 1,320,761 | +2.8% | 0.07% | $64,003,888 |
| Townsend & Associates, Inc | 1.2% | 1,205,567 | +3.3% | 5.1% | $58,506,179 |
| Financial Solutions Advisory Group, Inc. | 1.2% | 1,183,767 | 0% | 7.9% | $57,365,349 |
| CAHABA WEALTH MANAGEMENT, INC. | 1.2% | 1,128,804 | +6% | 3.7% | $54,701,836 |
| TRUST POINT INC. | 1.1% | 1,092,877 | -39% | 4.6% | $52,960,812 |
| Prosperity Planning, Inc. | 1% | 1,017,845 | +5.4% | 12% | $49,324,776 |
| JPMORGAN CHASE & CO | 1% | 986,851 | -7.9% | 0% | $47,724,203 |
| Apella Capital, LLC | 0.97% | 948,515 | +16% | 0.68% | $46,107,329 |
| UBS Group AG | 0.97% | 941,355 | -0.39% | 0.01% | $45,618,063 |
| MORGAN STANLEY | 0.96% | 932,557 | +8.5% | 0% | $45,191,762 |
| BANK OF AMERICA CORP /DE/ | 0.95% | 920,694 | -7.7% | 0% | $44,616,853 |
| LPL Financial LLC | 0.91% | 886,118 | +2.3% | 0.01% | $42,941,257 |
| MBL Wealth, LLC | 0.86% | 834,719 | +7.8% | 3.1% | $40,450,477 |
| BARTLETT & CO. WEALTH MANAGEMENT LLC | 0.76% | 741,304 | +33% | 0.46% | $35,874,924 |
| AMERIPRISE FINANCIAL INC | 0.75% | 729,039 | +3.3% | 0.01% | $35,395,137 |
| WELLS FARGO & COMPANY/MN | 0.7% | 684,938 | +2.2% | 0.01% | $33,192,068 |
| FPC INVESTMENT ADVISORY, INC. | 0.67% | 653,483 | +8% | 17% | $31,733,135 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 72,116,842 | $3,495,346,139 | +$112,514,499 | $48.46 | 396 |
| 2025 Q4 | 68,369,622 | $3,333,006,111 | +$99,844,067 | $48.75 | 389 |
| 2025 Q3 | 64,233,798 | $3,137,165,321 | +$62,918,169 | $48.84 | 382 |
| 2025 Q2 | 62,834,680 | $3,056,293,269 | +$69,447,911 | $48.65 | 384 |
| 2025 Q1 | 61,499,302 | $2,972,921,949 | +$53,023,690 | $48.35 | 387 |
| 2024 Q4 | 60,054,369 | $2,869,134,243 | +$159,502,673 | $47.77 | 386 |
| 2024 Q3 | 56,212,838 | $2,735,320,957 | -$21,320,760 | $48.68 | 360 |
| 2024 Q2 | 56,585,270 | $2,681,732,747 | -$42,522,468 | $47.37 | 372 |
| 2024 Q1 | 57,455,256 | $2,724,966,614 | -$13,625,651 | $47.44 | 381 |
| 2023 Q4 | 57,224,757 | $2,720,871,030 | -$18,653,973 | $47.56 | 385 |
| 2023 Q3 | 53,997,385 | $2,504,389,874 | -$77,450,782 | $46.38 | 361 |
| 2023 Q2 | 55,805,428 | $2,602,792,247 | -$288,920,879 | $46.64 | 386 |
| 2023 Q1 | 62,017,601 | $2,924,264,400 | -$312,460,173 | $47.16 | 387 |
| 2022 Q4 | 69,291,540 | $3,220,142,955 | +$110,843,342 | $46.44 | 389 |
| 2022 Q3 | 66,641,920 | $3,069,995,833 | -$581,095,980 | $46.10 | 375 |
| 2022 Q2 | 78,899,321 | $3,741,440,137 | -$268,849,945 | $47.40 | 381 |
| 2022 Q1 | 83,464,337 | $4,046,589,771 | +$63,900,912 | $48.46 | 376 |
| 2021 Q4 | 82,412,148 | $4,156,393,182 | +$220,782,723 | $50.43 | 388 |
| 2021 Q3 | 77,274,784 | $3,946,350,760 | +$607,721,266 | $51.07 | 345 |
| 2021 Q2 | 65,069,832 | $3,337,150,960 | +$374,431,112 | $51.29 | 333 |
| 2021 Q1 | 57,826,404 | $2,969,718,251 | +$31,411,420 | $51.29 | 322 |
| 2020 Q4 | 56,027,697 | $2,892,689,240 | +$15,082,190 | $51.64 | 311 |
| 2020 Q3 | 52,365,968 | $2,699,252,697 | +$207,647,706 | $51.55 | 269 |
| 2020 Q2 | 48,526,349 | $2,497,258,418 | +$224,700,778 | $51.47 | 261 |
| 2020 Q1 | 44,168,541 | $2,230,253,507 | -$12,144,491 | $50.50 | 247 |