SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF
US ˙ ARCA ˙ US78464A8210

SecurityMDYG / SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership89,484 shares
Latest Disclosed Value $ 8,588,732
Advisor Group Holdings, Inc. reports 2.29% increase in ownership of MDYG / SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 89,484 shares of SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF (US:MDYG) valued at $8,586,885 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 87,477 shares of SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF. This represents a change in shares of 2.29% during the quarter. The current value of the position is $9,590,895 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 78464A821 89,484 2,007 2.29 8,589 6.20 0.0073
2026-02-17 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A821 87,477 -18,279 -17.28 8,088 -16.13 0.0051
2025-11-14 2025-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 105,756 -7,418 -6.55 9,642 -1.09 0.0074
2025-09-04 2025-06-30 13F/A-1 PDR SERIES TRUST S&P 400 MDCP GRW 78464A821 113,174 14,076 14.20 9,749 23.77 0.0174
2025-08-13 2025-06-30 13F PDR SERIES TRUST S&P 400 MDCP GRW 78464A821 109,675 10,577 9,447 0.0109
2025-05-12 2025-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 99,098 -7,641 -7.16 7,876 -15.09 0.0176
2025-06-06 2024-12-31 13F/A-1 SPDR SER TR S&P 400 MDCP GRW 78464A821 106,739 -22,735 -17.56 9,277 -18.35 0.0208
2025-02-07 2024-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 123,755 -5,719 10,828 0.0276
2024-11-13 2024-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 129,474 -87,137 -40.23 11,362 -37.61 0.0256
2024-08-13 2024-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 216,611 -104,322 -32.51 18,210 -35.00 0.0430
2024-05-10 2024-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 320,933 17,190 5.66 28,015 21.88 0.0626
2024-02-12 2023-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 303,743 -55,577 -15.47 22,986 -7.48 0.0402
2023-11-13 2023-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 359,320 -8,912 -2.42 24,845 -5.87 0.0367
2023-08-21 2023-06-30 13F/A-1 SPDR SER TR S&P 400 MDCP GRW 78464A821 368,232 -141,467 -27.76 26,394 -24.30 0.0474
2023-08-10 2023-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 368,232 -141,467 26,394 0.0072
2023-05-12 2023-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 509,699 174,833 52.21 34,869 59.36 0.0656
2023-02-10 2022-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 334,866 -3,497 -1.03 21,881 7.15 0.0443
2022-11-14 2022-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 338,363 -3,080 -0.90 20,420 -1.98 0.0467
2022-08-10 2022-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 341,443 -24,545 -6.71 20,832 -18.50 0.0459
2022-05-04 2022-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 365,988 -30,125 -7.61 25,561 -20.85 0.0496
2022-02-03 2021-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 396,113 -417,265 -51.30 32,296 -47.53 0.0611
2021-11-05 2021-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 813,378 77,039 10.46 61,548 7.67 0.1282
2021-08-02 2021-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 736,339 63,298 9.40 57,165 13.06 0.1237
2021-05-13 2021-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 673,041 -2,308,413 -77.43 50,562 -75.54 0.1216
2021-02-10 2020-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,981,454 2,453,616 464.84 206,735 583.06 0.5521
2020-11-12 2020-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 527,838 -3,742,993 -87.64 30,266 -86.83 0.0905
2020-08-14 2020-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 4,270,831 3,792,445 792.76 229,757 1,029.86 0.7711
2020-05-18 2020-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 478,386 478,386 20,335 0.0833
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.