Citigroup Inc.
MX ˙ BMV ˙ US1729674242
SecurityMX:C / Citigroup Inc.
InstitutionBanco Santander, S.A.
Latest Disclosed Ownership677,198 shares
Latest Disclosed Value $ 76,801,025
Banco Santander, S.A. reports 4.80% increase in ownership of C / Citigroup Inc.

On May 8, 2026 - Banco Santander, S.A. filed a 13F-HR form disclosing ownership of 677,198 shares of Citigroup Inc. (MX:C) valued at $76,801,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 646,155 shares of Citigroup Inc.. This represents a change in shares of 4.80% during the quarter.

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)
2026-05-08 2026-03-31 13F CITIGROUP COM NEW 172967424 677,198 31,043 4.80 76,801 1.86 0.3629
2026-02-13 2025-12-31 13F CITIGROUP COM NEW 172967424 646,155 28,504 4.61 75,400 20.27 0.5646
2025-11-12 2025-09-30 13F CITIGROUP COM NEW 172967424 617,651 77,674 14.38 62,692 36.40 0.5566
2025-08-01 2025-06-30 13F CITIGROUP COM NEW 172967424 539,977 -36,625 -6.35 45,963 12.29 0.4364
2025-05-09 2025-03-31 13F CITIGROUP COM NEW 172967424 576,602 -39,255 -6.37 40,933 -5.58 0.4517
2025-02-07 2024-12-31 13F CITIGROUP COM NEW 172967424 615,857 348,310 130.19 43,350 158.84 0.5215
2024-11-12 2024-09-30 13F CITIGROUP COM NEW 172967424 267,547 7,686 2.96 16,748 1.56 0.1974
2024-07-29 2024-06-30 13F CITIGROUP COM NEW 172967424 259,861 -257,551 -49.78 16,491 -49.60 0.2044
2024-05-10 2024-03-31 13F CITIGROUP COM NEW 172967424 517,412 -349,488 -40.31 32,721 -26.62 0.3944
2024-02-09 2023-12-31 13F CITIGROUP COM NEW 172967424 866,900 -833 -0.10 44,593 24.95 0.5270
2023-11-08 2023-09-30 13F CITIGROUP COM NEW 172967424 867,733 1,278 0.15 35,690 -10.53 0.5059
2023-08-14 2023-06-30 13F CITIGROUP COM NEW 172967424 866,455 328,756 61.14 39,892 58.22 0.5233
2023-05-10 2023-03-31 13F CITIGROUP COM NEW 172967424 537,699 -8,338 -1.53 25,213 2.09 0.3774
2023-02-13 2022-12-31 13F CITIGROUP COM NEW 172967424 546,037 24,194 4.64 24,697 13.57 0.3709
2022-11-08 2022-09-30 13F CITIGROUP COM NEW 172967424 521,843 30,892 6.29 21,746 -3.69 0.2901
2022-07-28 2022-06-30 13F CITIGROUP COM NEW 172967424 490,951 66,546 15.68 22,580 -0.36 0.3009
2022-05-09 2022-03-31 13F CITIGROUP COM NEW 172967424 424,405 -327,596 -43.56 22,662 -50.10 0.2433
2022-02-09 2021-12-31 13F CITIGROUP COM NEW 172967424 752,001 34,691 4.84 45,413 -9.79 0.2447
2021-11-08 2021-09-30 13F CITIGROUP COM NEW 172967424 717,310 147,687 25.93 50,342 24.92 0.2705
2021-07-29 2021-06-30 13F CITIGROUP COM NEW 172967424 569,623 27,916 5.15 40,301 2.26 0.2251
2021-05-10 2021-03-31 13F CITIGROUP COM NEW 172967424 541,707 158,513 41.37 39,409 66.79 0.2777
2021-02-12 2020-12-31 13F CITIGROUP COM NEW 172967424 383,194 -10,746 -2.73 23,628 39.14 0.1694
2020-11-09 2020-09-30 13F CITIGROUP COM NEW 172967424 393,940 50,601 14.74 16,982 -3.20 0.2233
2020-08-05 2020-06-30 13F CITIGROUP COM NEW 172967424 343,339 -1,636,744 -82.66 17,544 -78.96 0.2276
2020-05-11 2020-03-31 13F CITIGROUP COM NEW 172967424 1,980,083 1,677,052 553.43 83,401 244.50 0.9548
2020-02-07 2019-12-31 13F CITIGROUP COM NEW 172967424 303,031 20,476 7.25 24,209 24.03 0.2236
2019-11-06 2019-09-30 13F CITIGROUP COM NEW 172967424 282,555 -261,104 -48.03 19,519 -48.73 0.1898
2019-08-07 2019-06-30 13F CITIGROUP COM NEW 172967424 543,659 237,925 77.82 38,073 100.14 0.3863
2019-05-13 2019-03-31 13F CITIGROUP COM NEW 172967424 305,734 -106,833 -25.89 19,023 -11.43 0.2147
2019-02-12 2018-12-31 13F CITIGROUP COM NEW 172967424 412,567 88,432 27.28 21,478 -7.67 0.2714
2018-11-13 2018-09-30 13F CITIGROUP COM NEW 172967424 324,135 -693,990 -68.16 23,262 -65.86 0.2655
2018-08-14 2018-06-30 13F CITIGROUP COM NEW 172967424 1,018,125 643,255 171.59 68,134 169.26 0.7937
2018-05-14 2018-03-31 13F CITIGROUP COM NEW 172967424 374,870 -997,984 -72.69 25,304 -75.23 0.2960
2018-02-14 2017-12-31 13F CITIGROUP COM NEW 172967424 1,372,854 161,311 13.31 102,155 16.11 1.4630
2017-11-13 2017-09-30 13F CITIGROUP COM NEW 172967424 1,211,543 976,375 415.18 87,985 459.42 1.4509
2017-08-11 2017-06-30 13F CITIGROUP COM NEW 172967424 235,168 161,084 217.43 15,728 254.87 0.3087
2017-05-12 2017-03-31 13F CITIGROUP COM NEW 172967424 74,084 2,831 3.97 4,432 11.75 0.1143
2017-02-17 2016-12-31 13F/A-1 CITIGROUP COM NEW 172967424 71,253 71,253 3,966 0.1045
2017-02-14 2016-12-31 13F CITIGROUP COM NEW 172967424 71,253 3,966
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.