SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF
US ˙ ARCA ˙ US78464A8475

SecuritySPMD / SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF
InstitutionBlackRock, Inc.
Latest Disclosed Ownership508,210 shares
Latest Disclosed Value $ 30,096,249
BlackRock, Inc. reports 100.16% increase in ownership of SPMD / SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 508,210 shares of SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF (US:SPMD) valued at $30,096,196 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 253,906 shares of SPDR Series Trust - State Street SPDR Portfolio S&P 400TM Mid Cap ETF. This represents a change in shares of 100.16% during the quarter. The current value of the position is $32,952,336 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)
2026-05-13 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A847 508,210 254,304 100.16 30,096 104.69 0.0000
2026-02-12 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A847 253,906 159,885 170.05 14,704 173.44 0.0002
2025-11-12 2025-09-30 13F SPDR SERIES TRUST PORTFOLIO S&P400 78464A847 94,021 81,546 653.68 5,377 693.07 0.0001
2025-08-12 2025-06-30 13F SPDR SERIES TRUST PORTFOLIO S&P400 78464A847 12,475 -1 -0.01 678 6.27 0.0000
2025-05-02 2025-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 12,476 868 7.48 639 0.63 0.0000
2025-02-07 2024-12-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 11,608 11,608 635 0.0000
2024-08-13 2024-06-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 0 -634 -100.00 0 -100.00
2024-05-10 2024-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 634 634 34 0.0000
2023-08-11 2023-06-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 0 -89 -100.00 0 -100.00
2023-05-12 2023-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 89 -1,219 -93.20 4 -94.55 0.0000
2023-02-13 2022-12-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 1,308 51 4.06 56 14.58 0.0000
2022-11-14 2022-09-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 1,257 596 90.17 48 84.62 0.0000
2022-08-12 2022-06-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 661 122 22.63 26 4.00 0.0000
2022-05-12 2022-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 539 -70 -11.49 25 -16.67 0.0000
2022-02-10 2021-12-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 609 -215 -26.09 30 -21.05 0.0000
2021-11-09 2021-09-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 824 -11 -1.32 38 -2.56 0.0000
2021-08-11 2021-06-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 835 565 209.26 39 225.00 0.0000
2021-05-07 2021-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 270 28 11.57 12 20.00 0.0000
2021-02-05 2020-12-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 242 -7 -2.81 10 25.00 0.0000
2020-11-06 2020-09-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 249 0 0.00 8 0.00 0.0000
2020-08-14 2020-06-30 13F SPDR SER TR PORTFOLIO S&P400 78464A847 249 -39 -13.54 8 14.29 0.0000
2020-05-01 2020-03-31 13F SPDR SER TR PORTFOLIO S&P400 78464A847 288 0 0.00 7 -30.00 0.0000
2020-02-13 2019-12-31 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 288 94 48.45 10 42.86 0.0000
2019-11-08 2019-09-30 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 194 98 102.08 7 133.33 0.0000
2019-08-22 2019-06-30 13F/A-1 SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 96 9 10.34 3 0.00 0.0000
2019-08-13 2019-06-30 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 96 9 3
2019-05-09 2019-03-31 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 0 0.00 3 0.00 0.0000
2019-02-08 2018-12-31 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 0 0.00 3 0.00 0.0000
2018-11-09 2018-09-30 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 0 0.00 3 0.00 0.0000
2018-08-09 2018-06-30 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 0 0.00 3 0.00 0.0000
2018-05-09 2018-03-31 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 0 0.00 3 0.00 0.0000
2018-02-09 2017-12-31 13F SPDR SERIES TRUST PORTFOLIO MD ETF 78464A847 87 58 200.00 3 0.00 0.0000
2017-11-14 2017-09-30 13F SPDR SERIES TRUST SPDR S&P 1000 ET 78464A847 29 0 0.00 3 0.00 0.0000
2017-08-10 2017-06-30 13F SPDR SERIES TRUST SPDR S&P 1000 ET 78464A847 29 0 0.00 3 0.00 0.0000
2017-05-12 2017-03-31 13F SPDR SERIES TRUST SPDR S&P 1000 ET 78464A847 29 0 0.00 3 0.00 0.0000
2017-02-10 2016-12-31 13F SPDR SERIES TRUST SPDR S&P 1000 ET 78464A847 29 -37 -56.06 3 -40.00 0.0000
2016-11-08 2016-09-30 13F SPDR SERIES TRUST SPDR S&P 1000 ET 78464A847 66 0 0.00 5 0.00 0.0000
2016-08-10 2016-06-30 13F SPDR SERIES TRUST SM CAP COMPLETE 78464A847 66 0 0.00 5 0.00 0.0000
2016-05-10 2016-03-31 13F SPDR SERIES TRUST SM CAP COMPLETE 78464A847 66 0 0.00 5 0.00 0.0000
2016-02-11 2015-12-31 13F SPDR SERIES TRUST SM CAP COMPLETE 78464A847 66 66 5 0.0000
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.