Who owns iShares Core Universal USD Bond ETF?
Institutional ownership of IUSB from SEC Form 13F filings across 410 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
410
13F holders
$36.49B
value, 2026 filers
87.3%
of shares outstanding (823.0M sh)
50
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of IUSB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ENVESTNET ASSET MANAGEMENT INC | 180.0M | $8.31B | 2.0% | 19.1% | +35.3% |
| 2 | JONES FINANCIAL COMPANIES LLLP | 87.5M | $4.05B | 1.6% | 9.3% | +10.0% |
| 3 | BlackRock, Inc. | 82.0M | $3.79B | 0.1% | 8.7% | +15.9% |
| 4 | LPL Financial LLC | 62.2M | $2.87B | 0.6% | 6.6% | +31.5% |
| 5 | WELLS FARGO & COMPANY/MN | 50.5M | $2.33B | 0.4% | 5.4% | +1.8% |
| 6 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 33.4M | $1.54B | 0.8% | 3.5% | +10.2% |
| 7 | MORGAN STANLEY | 31.0M | $1.43B | 0.1% | 3.3% | +19.5% |
| 8 | JPMORGAN CHASE & CO | 22.6M | $1.05B | 0.1% | 2.4% | +26.4% |
| 9 | Mariner, LLC | 20.7M | $957.3M | 1.0% | 2.2% | +9.5% |
| 10 | Envestnet Portfolio Solutions, Inc. | 16.9M | $781.7M | 3.7% | 1.8% | +35.1% |
| 11 | Bank of New York Mellon Corp | 14.4M | $663.7M | 0.1% | 1.5% | +31.0% |
| 12 | Cetera Investment Advisers | 13.3M | $615.5M | 0.6% | 1.4% | +32.8% |
| 13 | AMERIPRISE FINANCIAL INC | 13.0M | $601.3M | 0.1% | 1.4% | +13.0% |
| 14 | PARK AVENUE SECURITIES LLC | 12.9M | $595,965 | 3.7% | 1.4% | +44.2% |
| 15 | MML INVESTORS SERVICES, LLC | 11.4M | $526.4M | 1.1% | 1.2% | +57.0% |
| 16 | Janney Montgomery Scott LLC | 10.6M | $487,665 | 0.9% | 1.1% | +37.0% |
| 17 | OneDigital Investment Advisors LLC | 8.5M | $391.2M | 3.3% | 0.9% | +11.7% |
| 18 | Wealthspire Advisors, LLC | 5.5M | $253.0M | 1.4% | 0.6% | +16.0% |
| 19 | RAYMOND JAMES FINANCIAL INC | 5.4M | $247.2M | 0.1% | 0.6% | +8.5% |
| 20 | Johnson Financial Group, Inc. | 5.1M | $236.3M | 7.8% | 0.5% | +1.3% |
| 21 | Foundations Investment Advisors, LLC | 5.0M | $230.5M | 2.4% | 0.5% | +32.2% |
| 22 | ROYAL BANK OF CANADA | 5.0M | $230.2M | 0.0% | 0.5% | +16.1% |
| 23 | BANK OF AMERICA CORP /DE/ | 4.6M | $211.6M | 0.0% | 0.5% | +81.8% |
| 24 | NewEdge Advisors, LLCNEW | 4.1M | $189.7M | 0.6% | 0.4% | new |
| 25 | Cambridge Investment Research Advisors, Inc. | 4.1M | $189,610 | 0.4% | 0.4% | +153.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.