State Street Corporation
MX ˙ BMV ˙ US8574771031
SecurityMX:STT / State Street Corporation
InstitutionWinton Capital Group Ltd
Latest Disclosed Ownership26,557 shares
Latest Disclosed Value $ 3,361,054
Winton Capital Group Ltd ownership in STT / State Street Corporation

On May 12, 2026 - Winton Capital Group Ltd filed a 13F-HR form disclosing ownership of 26,557 shares of State Street Corporation (MX:STT) valued at $3,361,054 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 0 shares of State Street Corporation.

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)
2026-05-12 2026-03-31 13F STATE STR COM 857477103 26,557 26,557 3,361 0.1179
2026-02-11 2025-12-31 13F STATE STR COM 857477103 0 -44,951 -100.00 0 -100.00
2025-11-13 2025-09-30 13F STATE STR COM 857477103 44,951 44,951 5,215 0.1952
2024-08-09 2024-06-30 13F STATE STR COM 857477103 0 -334,954 -100.00 0 -100.00
2024-05-14 2024-03-31 13F STATE STR COM 857477103 334,954 334,954 25,899 1.8289
2023-08-14 2023-06-30 13F STATE STR COM 857477103 0 -6,204 -100.00 0 -100.00
2023-05-12 2023-03-31 13F STATE STR COM 857477103 6,204 6,204 470 0.0286
2022-02-10 2021-12-31 13F STATE STR COM 857477103 0 -129,141 -100.00 0 -100.00
2021-10-28 2021-09-30 13F STATE STR COM 857477103 129,141 125,474 3,421.71 10,941 3,522.85 0.6130
2021-08-10 2021-06-30 13F STATE STR COM 857477103 3,667 -4,715 -56.25 302 -57.10 0.0162
2021-07-21 2021-03-31 13F STATE STR COM 857477103 8,382 8,382 704 0.0402
2020-05-11 2020-03-31 13F STATE STR COM 857477103 0 -61,622 -100.00 0 -100.00
2020-02-13 2019-12-31 13F STATE STR COM 857477103 61,622 -20,847 -25.28 4,874 -0.14 0.0684
2019-11-08 2019-09-30 13F STATE STR COM 857477103 82,469 -5,426 -6.17 4,881 -0.93 0.0577
2019-07-08 2019-06-30 13F STATE STR COM 857477103 87,895 -27,962 -24.13 4,927 -35.38 0.0958
2019-05-13 2019-03-31 13F STATE STR COM 857477103 115,857 115,857 7,625 0.1533
2019-02-05 2018-12-31 13F STATE STR COM 857477103 0 -3,310 -100.00 0 -100.00
2018-11-02 2018-09-30 13F STATE STR COM 857477103 3,310 1,110 50.45 277 35.12 0.0058
2018-08-20 2018-06-30 13F STATE STR COM 857477103 2,200 -2,838 -56.33 205 -59.16 0.0052
2018-05-21 2018-03-31 13F STATE STR COM 857477103 5,038 -292 -5.48 502 -3.46 0.0142
2018-02-13 2017-12-31 13F STATE STR COM 857477103 5,330 982 22.59 520 25.30 0.0151
2017-11-13 2017-09-30 13F STATE STR COM 857477103 4,348 -22,422 -83.76 415 -82.72 0.0132
2017-08-17 2017-06-30 13F STATE STR COM 857477103 26,770 -63,452 -70.33 2,402 -66.56 0.0706
2017-05-19 2017-03-31 13F/A-1 STATE STR COM 857477103 90,222 8,374 10.23 7,183 12.92 0.1953
2017-05-12 2017-03-31 13F STATE STR COM 857477103 61,744 4,299
2017-02-13 2016-12-31 13F STATE STR COM 857477103 81,848 20,104 32.56 6,361 47.96 0.2100
2016-11-08 2016-09-30 13F STATE STR COM 857477103 61,744 -56,796 -47.91 4,299 -32.74 0.0739
2016-08-12 2016-06-30 13F STATE STR COM 857477103 118,540 -192,257 -61.86 6,392 -64.86 0.1056
2016-05-06 2016-03-31 13F STATE STR COM 857477103 310,797 66,981 27.47 18,188 12.41 0.1972
2016-02-08 2015-12-31 13F STATE STR COM 857477103 243,816 59,529 32.30 16,180 30.63 0.1438
2015-11-10 2015-09-30 13F STATE STR COM 857477103 184,287 -306,375 -62.44 12,386 -67.22 0.0980
2015-08-06 2015-06-30 13F STATE STR COM 857477103 490,662 260,418 113.11 37,781 123.16 0.3470
2015-05-12 2015-03-31 13F STATE STR COM 857477103 230,244 220,378 2,233.71 16,930 2,087.34 0.1348
2015-03-16 2014-12-31 13F/A-1 STATE STR COM 857477103 9,866 -209,878 -95.51 774 -95.21 0.0096
2015-02-13 2014-12-31 13F STATE STR COM 857477103 10,880 854
2014-10-28 2014-09-30 13F STATE STR COM 857477103 219,744 -152,286 -40.93 16,175 -35.36 0.1157
2014-08-05 2014-06-30 13F STATE STR COM 857477103 372,030 372,030 25,023 0.1706
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.