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
InstitutionFlagship Harbor Advisors, Llc
Latest Disclosed Ownership101,867 shares
Latest Disclosed Value $ 9,335,090
Flagship Harbor Advisors, Llc reports 27.22% decrease in ownership of BIL / SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF

On April 28, 2026 - Flagship Harbor Advisors, Llc filed a 13F-HR form disclosing ownership of 101,867 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF (US:BIL) valued at $9,335,092 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 139,969 shares of SPDR Series Trust - State Street SPDR Bloomberg 1-3 Month T-Bill ETF. This represents a change in shares of -27.22% during the quarter. The current value of the position is $9,311,662 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)
2026-04-28 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78468R663 101,867 -38,102 -27.22 9,335 -27.01 0.4105
2026-01-21 2025-12-31 13F STATE STREET MF Closed and MF Open 78468R663 139,969 -19,568 -12.27 12,790 -12.62 0.6036
2025-11-05 2025-09-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 159,537 6,408 4.18 14,638 4.21 0.6368
2025-08-04 2025-06-30 13F SPDR SERIES TRUST BLOOMBERG 1-3 MO 78468R663 153,129 -7,939 -4.93 14,047 -4.93 0.6653
2025-04-22 2025-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 161,068 -19,203 -10.65 14,775 -10.36 0.7769
2025-01-21 2024-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 180,271 62,667 53.29 16,482 52.65 0.8656
2024-10-21 2024-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 117,604 68,296 138.51 10,797 138.61 0.5930
2025-12-02 2024-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 49,308 4,445 9.91 4,525 9.88 0.2720
2024-04-16 2024-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 44,863 11,612 34.92 4,118 35.55 0.2647
2024-01-10 2023-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 33,251 -132,280 -79.91 3,039 -80.01 0.2210
2023-10-17 2023-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 165,531 140,125 551.54 15,199 551.76 1.2641
2023-07-11 2023-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 25,406 17,417 218.01 2,333 218.14 0.1927
2023-04-12 2023-03-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 7,989 -33,653 -80.82 734 -80.75 0.0691
2023-01-13 2022-12-31 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 41,642 -986 -2.31 3,809 -2.48 0.3905
2022-10-13 2022-09-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 42,628 18,604 77.44 3,905 77.66 0.4529
2022-07-13 2022-06-30 13F SPDR SER TR BLOOMBERG 1-3 MO 78468R663 24,024 23,424 3,904.00 2,198 3,970.37 0.2469
2020-10-13 2020-09-30 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 600 200 50.00 54 50.00 0.0073
2020-07-31 2020-06-30 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 400 -116 -22.48 36 -23.40 0.0053
2020-05-12 2020-03-31 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 516 464 892.31 47 840.00 0.0094
2020-02-14 2019-12-31 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 52 40 333.33 5 400.00 0.0009
2019-07-22 2019-06-30 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 12 0 0.00 1 0.00 0.0002
2019-04-15 2019-03-31 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 12 0 0.00 1 0.00 0.0002
2019-01-26 2018-12-31 13F SPDR BLOOMBERG ETF 78468R663 12 0 0.00 1 0.00 0.0002
2018-11-05 2018-09-30 13F SPDR BLOOMBERG MF Closed and MF Open 78468R663 12 -398 -97.07 1 -97.30 0.0002
2018-08-14 2018-06-30 13F SPDR BLOOMBERG ETF 78468R663 410 410 37 0.0074
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.