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
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership553,135 shares
Latest Disclosed Value $ 12,384,704
Private Advisor Group, LLC reports 5.77% decrease in ownership of SPMB / SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 553,135 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF (US:SPMB) valued at $12,384,693 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 586,996 shares of SPDR Series Trust - State Street SPDR Portfolio Mortgage Backed Bond ETF. This represents a change in shares of -5.77% during the quarter. The current value of the position is $12,229,815 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.

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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)
2026-04-24 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 553,135 -33,861 -5.77 12,385 -5.88 0.0550
2026-02-17 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A383 586,996 76,102 14.90 13,158 14.77 0.0592
2025-11-13 2025-09-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 510,894 -8,846 -1.70 11,464 -0.19 0.0564
2025-08-11 2025-06-30 13F SPDR SERIES TRUST PORT MTG BK ETF 78464A383 519,740 -215,725 -29.33 11,486 -29.17 0.0619
2025-05-05 2025-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 735,465 33,275 4.74 16,217 7.17 0.0981
2025-02-03 2024-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 702,190 -363,932 -34.14 15,132 -37.00 0.0852
2024-10-22 2024-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 1,066,122 27,912 2.69 24,020 7.26 0.1491
2024-08-05 2024-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 1,038,210 124,353 13.61 22,394 12.83 0.1502
2024-04-30 2024-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 913,857 -2,841 -0.31 19,849 -1.89 0.1426
2024-02-06 2023-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 916,698 -32,472 -3.42 20,232 2.48 0.1573
2023-11-03 2023-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 949,170 122,042 14.75 19,743 8.95 0.1764
2023-08-10 2023-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 827,128 451,930 120.45 18,120 117.76 0.1575
2023-05-10 2023-03-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 375,198 40,951 12.25 8,322 118,771.43 0.0795
2023-01-18 2022-12-31 13F SPDR SER TR PORT MTG BK ETF 78464A383 334,247 87,651 35.54 7 -99.87 0.0004
2022-10-14 2022-09-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 246,596 -53,768 -17.90 5,289 -22.93 0.0608
2022-07-13 2022-06-30 13F SPDR SER TR PORT MTG BK ETF 78464A383 300,364 -75,611 -20.11 6,863 -23.81 0.0612
2022-05-12 2022-03-31 13F/A-1 SPDR SER TR PORTFLI MORTGAGE 78464A383 375,975 -140,278 -27.17 9,008 -31.25 0.0690
2022-05-10 2022-03-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 516,253 0 13,103 0.0985
2022-02-10 2021-12-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 516,253 93,654 22.16 13,103 20.55 0.0983
2021-10-14 2021-09-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 422,599 49,608 13.30 10,869 12.69 0.0691
2021-08-12 2021-06-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 372,991 44,691 13.61 9,645 13.30 0.0842
2021-04-22 2021-03-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 328,300 57,450 21.21 8,513 18.96 0.0812
2021-04-01 2020-12-31 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 270,850 53,392 24.55 7,156 23.49 0.0746
2020-11-02 2020-09-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 217,458 30,143 16.09 5,795 15.46 0.0753
2020-08-17 2020-06-30 13F SPDR SER TR PORTFLI MORTGAGE 78464A383 187,315 187,315 5,019 0.0697
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.