Who owns State Street SPDR Portfolio Mortgage Backed Bond ETF?
Institutional ownership of SPMB from SEC Form 13F filings across 166 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.
166
13F holders
$1.43B
value, 2026 filers
20%
of shares outstanding (64.4M sh)
35
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 SPMB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | LPL Financial LLC | 22.4M | $500.2M | 0.1% | 6.9% | -4.3% |
| 2 | STIFEL FINANCIAL CORP | 5.9M | $131.5M | 0.1% | 1.8% | -25.1% |
| 3 | BENJAMIN EDWARDS INC | 4.8M | $107.4M | 1.0% | 1.5% | -25.1% |
| 4 | AMERIPRISE FINANCIAL INC | 3.6M | $79.8M | 0.0% | 1.1% | +2.9% |
| 5 | BANK OF AMERICA CORP /DE/ | 2.2M | $50.1M | 0.0% | 0.7% | +2.9% |
| 6 | Advisory Alpha, LLC | 2.2M | $49.8M | 1.2% | 0.7% | +2.9% |
| 7 | ASSETMARK, INC | 2.0M | $43.8M | 0.1% | 0.6% | +8.2% |
| 8 | GOLDMAN SACHS GROUP INC | 1.9M | $43.3M | 0.0% | 0.6% | +1484.3% |
| 9 | MORGAN STANLEY | 1.9M | $42.5M | 0.0% | 0.6% | +0.8% |
| 10 | JPMORGAN CHASE & CO | 1.5M | $33.8M | 0.0% | 0.5% | +11.8% |
| 11 | CITADEL ADVISORS LLCNEW | 1.4M | $32.1M | 0.0% | 0.4% | new |
| 12 | Sanctuary Advisors, LLC | 1.1M | $24.3M | 0.0% | 0.3% | +8.8% |
| 13 | Baird Financial Group, Inc. | 1.1M | $24.1M | 0.0% | 0.3% | +0.3% |
| 14 | Gladstone Institutional Advisory LLC | 885,033 | $19.7M | 0.6% | 0.3% | +7.7% |
| 15 | Cetera Investment Advisers | 782,706 | $17.5M | 0.0% | 0.2% | +1.9% |
| 16 | ST GERMAIN D J CO INC | 705,795 | $15.7M | 0.6% | 0.2% | +2.9% |
| 17 | Tidemark, LLC | 703,013 | $15.7M | 3.5% | 0.2% | +20.8% |
| 18 | Summit Financial, LLC | 695,748 | $15.5M | 0.2% | 0.2% | +3.4% |
| 19 | Private Advisory Group LLC | 656,299 | $14.6M | 0.8% | 0.2% | +11.8% |
| 20 | Stratos Wealth Partners, LTD. | 470,785 | $10.5M | 0.1% | 0.1% | +11.4% |
| 21 | Vise Technologies, Inc. | 414,577 | $9.2M | 0.1% | 0.1% | +212.7% |
| 22 | Mariner, LLC | 394,180 | $8.8M | 0.0% | 0.1% | -14.8% |
| 23 | Integrated Wealth Concepts LLC | 381,746 | $8.5M | 0.0% | 0.1% | +85.2% |
| 24 | FLAGSHIP HARBOR ADVISORS, LLC | 325,064 | $7.3M | 0.3% | 0.1% | -16.7% |
| 25 | ENVESTNET ASSET MANAGEMENT INC | 293,896 | $6.6M | 0.0% | 0.1% | -3.8% |
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.