SPDR Series Trust - State Street SPDR Portfolio Short Term Treasury ETF
US ˙ ARCA ˙ US78468R1014

SecuritySPTS / SPDR Series Trust - State Street SPDR Portfolio Short Term Treasury ETF
InstitutionState Street Corp
Latest Disclosed Ownership12,749,549 shares
Latest Disclosed Value $ 372,031,840
State Street Corp reports 4.29% decrease in ownership of SPTS / SPDR Series Trust - State Street SPDR Portfolio Short Term Treasury ETF

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 12,749,549 shares of SPDR Series Trust - State Street SPDR Portfolio Short Term Treasury ETF (US:SPTS) valued at $372,031,840 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,321,666 shares of SPDR Series Trust - State Street SPDR Portfolio Short Term Treasury ETF. This represents a change in shares of -4.29% during the quarter. The current value of the position is $369,354,435 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)
2026-05-15 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R101 12,749,549 -572,117 -4.29 372,032 -4.62 0.0128
2026-02-13 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R101 13,321,666 498,279 3.89 390,058 3.74 0.0131
2025-11-14 2025-09-30 13F SPDR SERIES TRUST PORTFOLIO SH TSR 78468R101 12,823,387 404,327 3.26 375,982 3.36 0.0130
2025-08-14 2025-06-30 13F SPDR SERIES TRUST PORTFOLIO SH TSR 78468R101 12,419,060 400,533 3.33 363,754 3.51 0.0136
2025-05-15 2025-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 12,018,527 19,315 0.16 351,422 0.95 0.0145
2025-02-14 2024-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 11,999,212 -42,748 -0.35 348,097 -1.71 0.0137
2024-11-14 2024-09-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 12,041,960 677,344 5.96 354,154 7.94 0.0144
2024-08-14 2024-06-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 11,364,616 420,873 3.85 328,096 3.67 0.0143
2024-05-15 2024-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 10,943,743 460,304 4.39 316,493 3.92 0.0141
2024-02-14 2023-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 10,483,439 986,668 10.39 304,544 11.66 0.0148
2023-11-14 2023-09-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 9,496,771 126,077 1.35 272,747 1.10 0.0151
2023-08-14 2023-06-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 9,370,694 649,181 7.44 269,782 5.83 0.0142
2023-05-15 2023-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 8,721,513 779,988 9.82 254,930 11.11 0.0144
2023-05-15 2022-12-31 13F/A-99 SPDR SER TR PORTFOLIO SH TSR 78468R101 7,941,525 713,998 9.88 229,431 9.80 0.0135
2023-05-15 2022-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 7,941,525 713,998 229,431 0.0135
2022-11-15 2022-09-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 7,227,527 -56,454 -0.78 208,948 -2.59 0.0132
2022-08-15 2022-06-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 7,283,981 -374,450 -4.89 214,513 -5.53 0.0129
2022-05-16 2022-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 7,658,431 619,875 8.81 227,072 6.02 0.0112
2022-02-14 2021-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 7,038,556 623,624 9.72 214,183 9.01 0.0102
2021-11-15 2021-09-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 6,414,932 177,002 2.84 196,489 2.80 0.0104
2021-08-16 2021-06-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 6,237,930 502,341 8.76 191,130 8.69 0.0101
2021-07-09 2021-03-31 13F/A-1 SPDR SER TR PORTFOLIO SH TSR 78468R101 5,735,589 876,314 18.03 175,853 17.84 0.0101
2021-05-17 2021-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 5,735,589 876,314 175,853 0.0101
2021-02-16 2020-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 4,859,275 608,656 14.32 149,228 14.36 0.0091
2020-11-10 2020-09-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 4,250,619 542,700 14.64 130,494 14.56 0.0089
2020-08-14 2020-06-30 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 3,707,919 429,739 13.11 113,907 13.11 0.0083
2020-06-19 2020-03-31 13F/A-1 SPDR SER TR PORTFOLIO SH TSR 78468R101 3,278,180 435,551 15.32 100,706 18.25 0.0088
2020-05-11 2020-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 3,278,180 435,551 100,706 8,844.0145
2020-02-06 2019-12-31 13F SPDR SERIES TRUST PORTFOLIO SH TSR 78468R101 2,842,629 -188,953 -6.23 85,165 -6.42 0.0058
2019-11-14 2019-09-30 13F SPDR SERIES TRUST PORTFOLIO SH TSR 78468R101 3,031,582 270,446 9.79 91,008 9.87 0.0068
2019-08-14 2019-06-30 13F SPDR SERIES TRUST PORTFOLIO SH TSR 78468R101 2,761,136 230,880 9.12 82,834 10.01 0.0062
2019-05-15 2019-03-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 2,530,256 460,122 22.23 75,300 22.97 0.0059
2019-02-12 2018-12-31 13F SPDR SER TR PORTFOLIO SH TSR 78468R101 2,070,134 -409,665 -16.52 61,235 -16.14 0.0056
2018-11-09 2018-09-30 13F SPDR PORTFOLIO SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 2,479,799 525,166 26.87 73,017 26.37 0.0056
2018-08-14 2018-06-30 13F SPDR PORTFOLIO SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 1,954,633 81,941 4.38 57,780 3.95 0.0048
2018-05-15 2018-03-31 13F SPDR PORTFOLIO SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 1,872,692 512,019 37.63 55,582 36.73 0.0047
2018-02-14 2017-12-31 13F SPDR PORTFOLIO SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 1,360,673 512,257 60.38 40,650 58.91 0.0033
2017-11-14 2017-09-30 13F SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 848,416 47,119 5.88 25,580 5.85 0.0022
2017-08-14 2017-06-30 13F SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 801,297 53,387 7.14 24,167 7.31 0.0021
2017-05-15 2017-03-31 13F SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 747,910 312,408 71.74 22,520 72.07 0.0020
2017-02-09 2016-12-31 13F SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 435,502 -18,379 -4.05 13,088 -5.61 0.0012
2017-01-13 2016-09-30 13F/A-1 SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 453,881 127,406 39.02 13,866 38.52 0.0014
2016-11-14 2016-09-30 13F SPDR BLOOMBERG BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 453,881 13,866
2016-08-12 2016-06-30 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 326,475 1,904 0.59 10,010 1.15 0.0011
2016-05-20 2016-03-31 13F/A-1 SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 324,571 9,096 2.88 9,896 4.22 0.0011
2016-05-12 2016-03-31 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 324,571 9,896
2016-02-16 2015-12-31 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 315,475 -611 -0.19 9,495 -1.08 0.0010
2015-11-16 2015-09-30 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 316,086 173,880 122.27 9,599 122.82 0.0011
2015-08-13 2015-06-30 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 142,206 22,915 19.21 4,308 19.01 0.0005
2015-05-15 2015-03-31 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 119,291 105,094 740.25 3,620 747.78 0.0004
2015-02-11 2014-12-31 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 14,197 6,912 94.88 427 94.09 0.0000
2014-11-12 2014-09-30 13F/A-1 SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 7,285 7,285 220 0.0000
2014-11-10 2014-09-30 13F SPDR BARCLAYS SHORT TERM TREASURY ETF Exchange Traded Product 78468R101 7,285 220 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.