SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF
US ˙ ARCA

SecuritySPMB / SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF
InstitutionAllworth Financial LP
Latest Disclosed Ownership35,646 shares
Latest Disclosed Value $ 798,111
Allworth Financial LP reports 1.12% increase in ownership of SPMB / SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 35,646 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF (US:SPMB) valued at $798,114 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 35,250 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF. This represents a change in shares of 1.12% during the quarter. The current value of the position is $790,628 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)
2026-05-14 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 35,646 396 1.12 798 1.01 0.0032
2026-02-05 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 35,250 -5,874 -14.28 790 -14.32 0.0032
2025-12-02 2025-09-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 41,124 5,017 13.89 923 15.68 0.0041
2025-08-07 2025-06-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 36,107 24 0.07 798 1.14 0.0038
2025-04-30 2025-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 36,083 -3,418 -8.65 788 -7.40 0.0044
2025-01-30 2024-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 39,501 3,550 9.87 851 5.19 0.0047
2024-10-23 2024-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 35,951 -1,959 -5.17 810 -2.06 0.0049
2024-07-24 2024-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 37,910 -220,169 -85.31 827 -85.26 0.0053
2024-04-25 2024-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 258,079 -8,925 -3.34 5,605 -4.87 0.0396
2024-01-24 2023-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 267,004 -7,710 -2.81 5,893 3.12 0.0451
2023-10-31 2023-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 274,714 12,244 4.66 5,714 -0.63 0.0490
2023-07-18 2023-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 262,470 4,715 1.83 5,751 0.58 0.0488
2023-04-18 2023-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 257,755 -12,285 -4.55 5,717 -2.42 0.0574
2023-01-13 2022-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 270,040 8,834 3.38 5,860 4.57 0.0649
2022-11-14 2022-09-30 13F/A-1 SPDR SER TR PORT MTG BK ETF 78464A383 261,206 35,796 15.88 5,603 8.77 0.0708
2022-10-18 2022-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 261,206 35,796 5,603 0.0708
2022-07-13 2022-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 225,410 -3,513 -1.53 5,151 -6.09 0.0705
2022-04-22 2022-03-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 228,923 18,298 8.69 5,485 2.60 0.0700
2022-01-21 2021-12-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 210,625 209,985 32,810.16 5,346 33,312.50 0.0758
2021-11-02 2021-09-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 640 609 1,964.52 16 1,500.00 0.0003
2021-08-02 2021-06-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 31 31 1 0.0000
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.