SPDR Series Trust - State Street Blackstone Senior Loan ETF
US ˙ ARCA ˙ US78467V6083

SecuritySRLN / SPDR Series Trust - State Street Blackstone Senior Loan ETF
InstitutionMorgan Stanley
Latest Disclosed Ownership6,892,082 shares
Latest Disclosed Value $ 276,648,201
Morgan Stanley reports 38.27% decrease in ownership of SRLN / SPDR Series Trust - State Street Blackstone Senior Loan ETF

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 6,892,082 shares of SPDR Series Trust - State Street Blackstone Senior Loan ETF (US:SRLN) valued at $276,648,171 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 11,164,717 shares of SPDR Series Trust - State Street Blackstone Senior Loan ETF. This represents a change in shares of -38.27% during the quarter. The current value of the position is $278,095,509 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 SSGA ACTIVE ETF TR STATE STREET BLA 78467V608 6,892,082 -4,272,635 -38.27 276,648 -39.96 0.0167
2026-05-27 2025-12-31 13F/A-1 SSGA ACTIVE ETF TR STATE STREET BLA 78467V608 11,164,717 706,376 6.75 460,768 5.96 0.0275
2026-02-13 2025-12-31 13F SSGA ACTIVE ETF TR STATE STREET BLA 78467V608 11,164,717 706,376 460,768 0.0275
2026-05-27 2025-09-30 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 10,458,341 -1,141,698 -9.84 434,858 -9.86 0.0263
2025-11-14 2025-09-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 10,458,341 -1,141,698 434,858 0.0263
2025-08-15 2025-06-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 11,600,039 518,405 4.68 482,446 5.85 0.0314
2025-05-15 2025-03-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 11,081,634 3,651,244 49.14 455,788 46.99 0.0326
2025-05-15 2024-12-31 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,430,390 125,458 1.72 310,070 1.64 0.0217
2025-02-14 2024-12-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,430,390 125,458 310,070 0.0217
2025-05-14 2024-09-30 13F/A-2 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,304,932 -1,375,511 -15.85 305,054 -15.93 0.0221
2025-02-14 2024-09-30 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,304,932 -1,375,511 305,054 0.0221
2024-11-14 2024-09-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,304,932 -1,375,511 305,054 0.0026
2025-05-14 2024-06-30 13F/A-2 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 8,680,443 -2,611,347 -23.13 362,843 -23.69 0.0281
2024-10-17 2024-06-30 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 8,680,443 -2,611,347 362,843 0.0281
2024-08-14 2024-06-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 8,680,443 -2,611,347 362,843 0.0281
2024-10-17 2024-03-31 13F/A-2 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 11,291,790 5,000,611 79.49 475,497 80.26 0.0382
2024-08-16 2024-03-31 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 11,291,790 5,000,611 475,497 0.0045
2024-05-15 2024-03-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 11,291,790 5,000,611 475,497 0.0382
2024-08-16 2023-12-31 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 6,291,179 1,035,534 19.70 263,789 19.70 0.0232
2024-02-13 2023-12-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 6,291,179 1,035,534 263,789 0.0232
2023-11-15 2023-09-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 5,255,645 -348,087 -6.21 220,369 -6.08 0.0224
2023-08-14 2023-06-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 5,603,732 -71,675 -1.26 234,628 -0.29 0.0231
2023-05-15 2023-03-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 5,675,407 -474,630 -7.72 235,302 -6.45 0.0252
2023-02-14 2022-12-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 6,150,037 -1,000,862 -14.00 251,537 -13.93 0.0286
2022-11-14 2022-09-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,150,899 -8,998 -0.13 292,257 -1.97 0.0398
2022-10-27 2022-06-30 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,159,897 -1,752,472 -19.66 298,138 -25.60 0.0387
2022-08-15 2022-06-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,159,897 -1,752,472 298,138 0.0078
2022-10-27 2022-03-31 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 8,912,369 966,722 12.17 400,700 10.52 0.0540
2022-05-13 2022-03-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 8,912,369 966,722 400,700 0.0540
2022-02-14 2021-12-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 7,945,647 2,519,685 46.44 362,559 45.20 0.0448
2021-11-15 2021-09-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 5,425,962 1,557,367 40.26 249,703 39.44 0.0336
2021-08-23 2021-06-30 13F/A-1 SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 3,868,595 1,444,582 59.59 179,078 61.51 0.0236
2021-08-16 2021-06-30 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 3,868,595 1,444,582 179,078 0.0049
2021-05-17 2021-03-31 13F SSGA ACTIVE ETF TR BLACKSTONE SENR 78467V608 2,424,013 785,040 47.90 110,875 48.19 0.0163
2021-02-16 2020-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,638,973 359,998 28.15 74,819 30.81 0.0116
2020-11-13 2020-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,278,975 -126,869 -9.02 57,196 -6.21 0.0111
2020-08-14 2020-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,405,844 -72,704 -4.92 60,986 3.09 0.0135
2020-05-26 2020-03-31 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,478,548 50,195 3.51 59,157 -11.09 0.0161
2020-05-15 2020-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,478,548 50,195 59,157 4,544.4908
2020-02-14 2019-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,428,353 -55,071 -3.71 66,533 -3.17 0.0155
2019-11-14 2019-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,483,424 -160,044 -9.74 68,712 -9.54 0.0182
2019-08-14 2019-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,643,468 -173,542 -9.55 75,962 -9.22 0.0202
2019-05-15 2019-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,817,010 -5,258 -0.29 83,673 2.72 0.0237
2019-02-14 2018-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,822,268 -709,962 -28.04 81,455 -32.06 0.0244
2019-04-23 2018-09-30 13F/A-2 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,532,230 -97,462 -3.71 119,901 -2.93 0.0300
2018-11-20 2018-09-30 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,532,230 0 119,901 0.0300
2018-11-14 2018-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,532,230 -97,462 119,901
2019-04-23 2018-06-30 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,629,692 293,044 12.54 123,516 11.47 0.0334
2018-08-14 2018-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,629,692 293,044 123,516
2019-04-23 2018-03-31 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,336,648 580,724 33.07 110,804 33.75 0.0308
2018-05-14 2018-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 2,336,648 580,724 110,804
2019-04-23 2017-12-31 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,755,924 -47,398 -2.63 82,845 -3.12 0.0227
2018-02-14 2017-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,755,924 -47,398 82,845
2017-11-14 2017-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,803,322 20,599 1.16 85,513 1.13 0.0256
2017-08-11 2017-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,782,723 170,231 10.56 84,555 10.30 0.0255
2017-05-22 2017-03-31 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,612,492 456,323 39.47 76,658 39.61 0.0236
2017-05-12 2017-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,612,492 76,658
2017-02-22 2016-12-31 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,156,169 156,234 15.62 54,907 16.14 0.0180
2017-02-13 2016-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,156,169 54,907
2016-11-10 2016-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 999,935 56,475 5.99 47,277 7.21 0.0161
2016-08-12 2016-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 943,460 -429,363 -31.28 44,097 -30.89 0.0159
2016-05-12 2016-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,372,823 -49,180 -3.46 63,808 -2.73 0.0246
2016-02-09 2015-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,422,003 329,955 30.21 65,597 25.77 0.0237
2016-02-08 2015-09-30 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,092,048 137,871 14.45 52,155 11.01 0.0193
2015-11-09 2015-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 1,092,048 52,155
2015-08-12 2015-06-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 954,177 132,080 16.07 46,984 15.99 0.0163
2015-05-14 2015-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 822,097 82 0.01 40,506 1.08 0.0149
2015-02-13 2014-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 822,015 6,943 0.85 40,074 0.05 0.0147
2014-12-16 2014-09-30 13F/A-1 SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 815,072 182,931 28.94 40,052 26.67 0.0154
2014-11-14 2014-09-30 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 815,072 40,052
2014-05-13 2014-03-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 632,141 17,043 2.77 31,620 2.77 0.0132
2014-02-13 2013-12-31 13F SSGA ACTIVE ETF TR BLKSTN GSOSRLN 78467V608 615,098 153,756 33.33 30,767 33.87 0.0131
2013-11-13 2013-09-30 13F SPDR BLACKST ETF COM 78467V608 461,342 -126,908 -21.57 22,983 -21.42 0.0109
2013-08-08 2013-06-30 13F SPDR BLACKST ETF COM 78467V608 588,250 588,250 29,248 0.0148
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.