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
InstitutionCitigroup Inc
Latest Disclosed Ownership25,081 shares
Latest Disclosed Value $ 2,406,772
Citigroup Inc reports 0.13% decrease in ownership of MDYG / SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 25,081 shares of SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF (US:MDYG) valued at $2,406,773 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,114 shares of SPDR Series Trust - State Street SPDR S&P 400 TM Mid Cap Growth ETF. This represents a change in shares of -0.13% during the quarter. The current value of the position is $2,757,656 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)
2026-05-11 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A821 25,081 -33 -0.13 2,407 3.66 0.0005
2026-02-13 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A821 25,114 -38,089 -60.26 2,321 -59.89 0.0010
2025-11-10 2025-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 63,203 -11,022 -14.85 5,787 -10.25 0.0026
2025-08-11 2025-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 74,225 -2,696,310 -97.32 6,448 -97.07 0.0032
2025-05-12 2025-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,770,535 408,202 17.28 220,147 7.25 0.1125
2025-02-12 2024-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,362,333 -74,724 -3.07 205,263 -4.01 0.1218
2024-11-12 2024-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,437,057 34,717 1.45 213,827 5.89 0.1238
2024-08-12 2024-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,402,340 64,334 2.75 201,941 -1.04 0.1294
2024-05-10 2024-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,338,006 -43,561 -1.83 204,066 13.24 0.1340
2024-02-09 2023-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2,381,567 2,381,557 23,815,570.00 180,213 0.1270
2023-12-06 2023-09-30 13F/A-1 SPDR SER TR S&P 400 MDCP GRW 78464A821 10 8 400.00 1 0.0000
2023-11-09 2023-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 10 8 1 0.0000
2023-08-10 2023-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 2 2 0 0.0000
2023-05-11 2023-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 0 -10 -100.00 0 0.0000
2023-02-09 2022-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 10 10 1 0.0000
2022-11-10 2022-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 0 -1 -100.00 0 0.0000
2022-08-10 2022-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1 0 0.00 0 0.0000
2022-05-12 2022-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1 -133 -99.25 0 -100.00
2022-02-10 2021-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 134 69 106.15 11 120.00 0.0000
2021-11-10 2021-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 65 -1,492 -95.83 5 -95.87 0.0000
2021-08-10 2021-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,557 3 0.19 121 3.42 0.0001
2021-05-13 2021-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,554 0 0.00 117 8.33 0.0001
2021-02-11 2020-12-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,554 -1 -0.06 108 21.35 0.0001
2020-11-12 2020-09-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,555 -259 -14.28 89 -9.18 0.0001
2020-08-12 2020-06-30 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,814 8 0.44 98 27.27 0.0001
2020-05-12 2020-03-31 13F SPDR SER TR S&P 400 MDCP GRW 78464A821 1,806 -35 -1.90 77 -26.67 0.0001
2020-02-12 2019-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 1,841 5 0.27 105 6.06 0.0001
2019-11-08 2019-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 1,836 -364 -16.55 99 -16.81 0.0001
2019-08-12 2019-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 2,200 -29 -1.30 119 1.71 0.0001
2019-05-13 2019-03-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 2,229 0 0.00 117 14.71 0.0001
2019-02-12 2018-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 2,229 -210 -8.61 102 -25.00 0.0001
2018-11-13 2018-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 2,439 0 0.00 136 3.03 0.0001
2018-08-10 2018-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 2,439 1,731 244.49 132 18.92 0.0001
2018-05-11 2018-03-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 708 172 32.09 111 33.73 0.0001
2018-02-12 2017-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 536 1 0.19 83 5.06 0.0001
2017-11-13 2017-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 535 -188 -26.00 79 -24.04 0.0001
2017-08-11 2017-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 723 335 86.34 104 92.59 0.0001
2017-05-12 2017-03-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 388 200 106.38 54 116.00 0.0000
2017-02-10 2016-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 188 0 0.00 25 4.17 0.0000
2016-11-10 2016-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 188 187 18,700.00 24 0.0000
2016-08-12 2016-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 1 1 0.00 0 0.0000
2016-05-13 2016-03-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 0 -230 -100.00 0 -100.00
2016-02-12 2015-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 230 -63 -21.50 27 -20.59 0.0000
2015-11-13 2015-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 293 54 22.59 34 13.33 0.0000
2015-08-13 2015-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 239 239 0.00 30 0.0000
2015-02-17 2014-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 0 -125 -100.00 0 -100.00
2014-11-14 2014-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 125 0 0.00 14 -6.67 0.0000
2014-08-14 2014-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 125 0 0.00 15 7.14 0.0000
2014-05-15 2014-03-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 125 0 0.00 14 0.00 0.0000
2014-02-14 2013-12-31 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 125 -21 -14.38 14 -6.67 0.0000
2013-11-14 2013-09-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 146 21 16.80 15 25.00 0.0000
2013-08-14 2013-06-30 13F SPDR SERIES TRUST S&P 400 MDCP GRW 78464A821 125 125 12 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.