SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF
US ˙ ARCA ˙ US78468R6633

SecurityBIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF
InstitutionAcorns Advisers, LLC
Latest Disclosed Ownership585,347 shares
Latest Disclosed Value $ 53,641
Acorns Advisers, LLC reports 3.98% increase in ownership of BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF

On May 14, 2026 - Acorns Advisers, LLC filed a 13F-HR form disclosing ownership of 585,347 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF (US:BIL) valued at $53,641,199 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 562,960 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF. This represents a change in shares of 3.98% during the quarter. The current value of the position is $53,506,569 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)
2026-05-14 2026-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 585,347 22,387 3.98 54 3.92 0.3987
2026-02-13 2025-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 562,960 14,738 2.69 51 2.00 0.3862
2025-11-13 2025-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 548,222 7,348 1.36 50 2.04 0.3956
2025-08-13 2025-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 540,874 2,634 0.49 50 0.00 0.4257
2025-05-20 2025-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 538,240 29,385 5.77 49 6.52 0.4735
2025-02-13 2024-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 508,855 6,801 1.35 47 0.00 0.4509
2024-11-14 2024-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 502,054 19,994 4.15 46 4.55 0.4554
2024-08-13 2024-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 482,060 12,825 2.73 44 2.33 0.4736
2024-05-14 2024-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 469,235 3,908 0.84 43 2.38 0.4811
2024-02-13 2023-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 465,327 5,204 1.13 43 0.00 0.5208
2023-11-13 2023-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 460,123 951 0.21 42 0.00 0.5808
2023-08-11 2023-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 459,172 -8,270 -1.77 42 0.00 0.5712
2023-05-04 2023-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 467,442 4,120 0.89 43 0.00 0.6237
2023-02-13 2022-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 463,322 11,841 2.62 42 -99.90 0.6770
2022-11-14 2022-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 451,481 11,211 2.55 41,356 2.67 0.7454
2022-08-15 2022-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 440,270 40,943 10.25 40,280 10.33 0.7165
2022-05-16 2022-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 399,327 34,857 9.56 36,510 9.56 0.5926
2022-02-14 2021-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 364,470 626 0.17 33,323 0.14 0.5428
2021-11-16 2021-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 363,844 12,898 3.68 33,277 3.66 0.6110
2021-08-13 2021-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 350,946 8,846 2.59 32,101 2.55 0.6323
2021-04-23 2021-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 342,100 9,371 2.82 31,302 2.79 0.7197
2021-02-16 2020-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 332,729 -13,441 -3.88 30,451 -3.88 0.8232
2020-12-01 2020-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 346,170 11,459 3.42 31,681 3.41 1.0402
2020-08-21 2020-06-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 334,711 19,489 6.18 30,636 6.07 1.1827
2020-05-14 2020-03-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 315,222 55,159 21.21 28,884 21.33 1.4807
2020-02-11 2019-12-31 13F/A-1 SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 260,063 -589 -0.23 23,806 -0.29 1.0697
2020-02-10 2019-12-31 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 260,063 -589 23,806 1,069,696.0492
2019-11-15 2019-09-30 13F SPDR SERIES TRUST SPDR BLOOMBERG 78468R663 260,652 260,652 23,876 1.2382
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.