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
InstitutionWelch Group, LLC
Latest Disclosed Ownership11,877 shares
Latest Disclosed Value $ 1,088,363
Welch Group, LLC reports 3.03% increase in ownership of BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF

On April 21, 2026 - Welch Group, LLC filed a 13F-HR form disclosing ownership of 11,877 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF (US:BIL) valued at $1,088,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 11,528 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF. This represents a change in shares of 3.03% during the quarter. The current value of the position is $1,085,677 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)
2026-04-21 2026-03-31 13F SPDR SERIES TRUST COMMON 78468R663 11,877 349 3.03 1,088 3.32 0.0409
2026-01-26 2025-12-31 13F SPDR SERIES TRUST COMMON STOCK 78468R663 11,528 -703 -5.75 1,053 -6.15 0.0406
2025-10-14 2025-09-30 13F SPDR SERIES TRUST COMMON 78468R663 12,231 -11,487 -48.43 1,122 -48.41 0.0438
2025-07-25 2025-06-30 13F SPDR SERIES TRUST COMMON 78468R663 23,718 11,324 91.37 2,176 91.46 0.0909
2025-04-08 2025-03-31 13F SPDR SER TR COMMON 78468R663 12,394 495 4.16 1,137 4.51 0.0500
2025-01-27 2024-12-31 13F SPDR SER TR COMMON 78468R663 11,899 311 2.68 1,088 2.26 0.0490
2024-10-24 2024-09-30 13F SPDR SER TR COMMON 78468R663 11,588 0 0.00 1,064 0.00 0.0462
2024-07-17 2024-06-30 13F SPDR SER TR COMMON 78468R663 11,588 65 0.56 1,064 0.57 0.0511
2024-04-09 2024-03-31 13F SPDR SER TR COMMON 78468R663 11,523 -21,847 -65.47 1,058 -65.33 0.0525
2024-01-23 2023-12-31 13F SPDR SER TR Common 78468R663 33,370 -6,164 -15.59 3,050 -16.01 0.1642
2023-10-18 2023-09-30 13F SPDR SER TR Common 78468R663 39,534 33,370 541.37 3,630 542.48 0.2151
2023-07-18 2023-06-30 13F SPDR SER TR Common 78468R663 6,164 -5,915 -48.97 566 -49.05 0.0324
2023-04-13 2023-03-31 13F SPDR SER TR Common 78468R663 12,079 -18,980 -61.11 1,109 -60.95 0.0645
2023-01-30 2022-12-31 13F SPDR SER TR Common 78468R663 31,059 -10,948 -26.06 2,841 -26.20 0.1625
2022-10-13 2022-09-30 13F SPDR SER TR COMMON 78468R663 42,007 -6,161 -12.79 3,848 -12.68 0.2505
2022-07-21 2022-06-30 13F SPDR SER TR COMMON 78468R663 48,168 48,168 4,407 0.2689
2020-07-22 2020-06-30 13F SPDR SER TR Common 78468R663 0 -1,965 -100.00 0 -100.00
2020-04-28 2020-03-31 13F SPDR SER TR Common 78468R663 1,965 1,965 180 0.0192
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.