Latest Period
Q1 2026
Security Snapshot
iShares Core Universal USD Bond ETF - Common Stock (IUSB) Institutional Ownership
CUSIP: 46434V613
13F Institutional Holders and Ownership History from Q2 2014 to Q1 2026
Institutions Reporting
835
Shares (Excl. Options)
764,917,469
Price
$46.19
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- Security type / class
- Equity / Common Stock
- Symbol
- IUSB
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 764,917,469
- Total 13F value
- $35,305,211,735
- Portfolio coverage rank
- 0.09%
- Share change
- +51,205,798
- Value change
- +$2,362,978,796
- Number of holders
- 835
- Shares outstanding
- 736,143,217
- SEC-reported price per share
- $45.97
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
- IUSB - iShares Core Universal USD Bond ETF - Common Stock is tracked under CUSIP 46434V613.
- 835 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 840 to 835 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $33,331,149,996 to $35,305,211,735.
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 835 institutions filings for Q1 2026.
Security key
46434V613
Latest holder period
Q1 2026
13F holders
835
13D/G owners
1
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 46434V613:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
IUSB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.3% | +20% | $2,843,588,741 | +$535,753,261 | 61,099,887 | +23% | BlackRock, Inc. | 31 Dec 2025 |
As of 31 Mar 2026, 835 institutional investors reported holding 764,917,469 shares of iShares Core Universal USD Bond ETF - Common Stock (IUSB). This represents 104% of the company’s total 736,143,217 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
82%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ENVESTNET ASSET MANAGEMENT INC | 18% | 133,081,202 | +12% | 1.6% | $6,147,020,737 |
| JONES FINANCIAL COMPANIES LLLP | 11% | 79,586,891 | +3.9% | 1.8% | $3,650,704,047 |
| BlackRock, Inc. | 9.6% | 70,760,965 | -1.6% | 0.06% | $3,268,448,993 |
| WELLS FARGO & COMPANY/MN | 6.7% | 49,562,677 | +3.4% | 0.46% | $2,289,300,061 |
| LPL Financial LLC | 6.4% | 47,282,506 | +3.9% | 0.58% | $2,183,978,861 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 4.1% | 30,338,047 | +6% | 0.86% | $1,401,314,378 |
| MORGAN STANLEY | 3.5% | 25,978,502 | +5.2% | 0.07% | $1,199,947,079 |
| Mariner, LLC | 2.6% | 18,948,193 | +18% | 1% | $875,212,113 |
| JPMORGAN CHASE & CO | 2.4% | 17,909,534 | +0.35% | 0.06% | $825,629,553 |
| CWM, LLC | 2.4% | 17,616,671 | +2.5% | 2.1% | $813,714,056 |
| Envestnet Portfolio Solutions, Inc. | 1.7% | 12,537,350 | +0.56% | 3.2% | $579,100,206 |
| AMERIPRISE FINANCIAL INC | 1.6% | 11,541,941 | +3.9% | 0.12% | $533,104,941 |
| Bank of New York Mellon Corp | 1.5% | 10,974,170 | +14% | 0.09% | $506,896,892 |
| Cetera Investment Advisers | 1.4% | 10,043,013 | +5.5% | 0.49% | $463,886,778 |
| PARK AVENUE SECURITIES LLC | 1.2% | 8,956,773 | +4.1% | 3.2% | $413,713,000 |
| Janney Montgomery Scott LLC | 1% | 7,713,487 | +8.7% | 0.88% | $356,286,000 |
| Kestra Investment Management, LLC | 1% | 7,645,647 | +66% | 6.1% | $353,152,423 |
| OneDigital Investment Advisors LLC | 1% | 7,590,426 | +11% | 3.4% | $350,601,755 |
| MML INVESTORS SERVICES, LLC | 0.99% | 7,265,228 | -2.3% | 0.93% | $335,580,902 |
| SigFig Wealth Management, LLC | 0.71% | 5,234,998 | +13% | 7.1% | $241,804,204 |
| Johnson Financial Group, Inc. | 0.69% | 5,053,447 | +7027% | 8.5% | $233,418,720 |
| RAYMOND JAMES FINANCIAL INC | 0.67% | 4,938,217 | +9.1% | 0.07% | $228,096,211 |
| Wealthspire Advisors, LLC | 0.64% | 4,727,243 | +2.4% | 1.7% | $218,351,375 |
| GeoWealth Management, LLC | 0.63% | 4,664,293 | +1.8% | 7.8% | $215,443,731 |
| ROYAL BANK OF CANADA | 0.58% | 4,298,070 | +8.2% | 0.04% | $198,529,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
48
Latest
Q1 2026
Rows shown
1-25 of 48
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 764,917,469 | $35,305,211,735 | +$2,362,978,796 | $46.19 | 835 |
| 2025 Q4 | 716,154,628 | $33,331,149,996 | +$1,448,207,704 | $46.54 | 840 |
| 2025 Q3 | 682,046,194 | $31,851,007,923 | -$407,877,106 | $46.71 | 749 |
| 2025 Q2 | 690,312,956 | $31,900,622,691 | -$454,003,554 | $46.23 | 732 |
| 2025 Q1 | 701,059,885 | $32,294,086,016 | -$119,167,948 | $46.08 | 725 |
| 2024 Q4 | 707,790,615 | $31,995,677,062 | -$186,709,210 | $45.20 | 718 |
| 2024 Q3 | 707,342,586 | $33,326,022,835 | +$4,065,616,340 | $47.12 | 662 |
| 2024 Q2 | 623,089,369 | $28,177,604,650 | +$374,900,439 | $45.22 | 644 |
| 2024 Q1 | 608,795,409 | $27,749,282,587 | +$4,381,932,927 | $45.59 | 628 |
| 2023 Q4 | 513,488,566 | $23,650,699,472 | +$749,971,253 | $46.07 | 625 |
| 2023 Q3 | 493,693,278 | $21,582,351,240 | -$463,193,418 | $43.72 | 542 |
| 2023 Q2 | 489,809,143 | $22,271,393,961 | +$907,838,529 | $45.47 | 524 |
| 2023 Q1 | 469,730,142 | $21,676,998,982 | +$2,368,713,209 | $46.15 | 510 |
| 2022 Q4 | 416,543,097 | $18,716,164,938 | +$2,497,366,955 | $44.93 | 520 |
| 2022 Q3 | 361,454,381 | $16,085,937,517 | +$344,568,755 | $44.50 | 470 |
| 2022 Q2 | 353,040,613 | $16,530,254,083 | -$146,952,877 | $46.82 | 468 |
| 2022 Q1 | 354,755,832 | $17,590,186,143 | +$2,927,307,451 | $49.63 | 467 |
| 2021 Q4 | 295,128,823 | $15,617,860,262 | +$1,203,395,075 | $52.93 | 460 |
| 2021 Q3 | 261,212,822 | $13,912,312,909 | +$843,611,963 | $53.24 | 402 |
| 2021 Q2 | 254,470,336 | $13,608,524,158 | +$2,069,477,684 | $53.49 | 376 |
| 2021 Q1 | 214,854,376 | $11,343,955,569 | +$6,175,522,253 | $52.75 | 348 |
| 2020 Q4 | 97,710,667 | $5,322,905,606 | +$409,763,688 | $54.58 | 243 |
| 2020 Q3 | 89,197,774 | $4,841,983,766 | +$239,423,790 | $54.38 | 200 |
| 2020 Q2 | 84,905,563 | $4,604,340,739 | +$201,911,664 | $54.33 | 189 |
| 2020 Q1 | 81,140,587 | $4,269,739,195 | +$168,956,327 | $52.50 | 181 |