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
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership450,459 shares
Latest Disclosed Value $ 41,341,528
Wiley Bros.-aintree Capital, Llc reports 3.53% decrease in ownership of BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 450,459 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF (US:BIL) valued at $41,280,063 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 466,920 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF. This represents a change in shares of -3.53% during the quarter. The current value of the position is $41,176,457 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 78468R663 450,459 -16,461 -3.53 41,342 -3.08 0.2043
2026-02-17 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R663 466,920 32,875 7.57 42,656 6.58 0.2232
2025-11-14 2025-09-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 434,045 67,785 18.51 40,023 19.13 0.2563
2025-08-14 2025-06-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 366,260 66,216 22.07 33,598 22.07 0.2578
2025-05-15 2025-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 300,044 15,628 5.49 27,523 5.97 0.2924
2025-02-14 2024-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 284,416 78,839 38.35 25,974 37.77 0.3115
2024-11-14 2024-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 205,577 136,127 196.01 18,852 195.76 0.3637
2024-07-24 2024-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 69,450 61,723 798.80 6,374 799.01 0.2790
2024-04-11 2024-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 7,727 7,727 709 0.0977
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.