Great Southern Bancorp, Inc.
US ˙ NasdaqGS ˙ US3909051076

SecurityGSBC / Great Southern Bancorp, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership18,179 shares
Latest Disclosed Value $ 1,147,641
Citigroup Inc reports 76.12% increase in ownership of GSBC / Great Southern Bancorp, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 18,179 shares of Great Southern Bancorp, Inc. (US:GSBC) valued at $1,147,640 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,322 shares of Great Southern Bancorp, Inc.. This represents a change in shares of 76.12% during the quarter. The current value of the position is $1,291,436 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 GREAT SOUTHN BANCORP COM 390905107 18,179 7,857 76.12 1,148 80.63 0.0005
2026-02-13 2025-12-31 13F GREAT SOUTHN BANCORP COM 390905107 10,322 3,762 57.35 635 58.35 0.0003
2025-11-10 2025-09-30 13F GREAT SOUTHN BANCORP COM 390905107 6,560 -708 -9.74 402 -6.09 0.0002
2025-08-11 2025-06-30 13F GREAT SOUTHN BANCORP COM 390905107 7,268 -2,338 -24.34 427 -19.59 0.0002
2025-05-12 2025-03-31 13F GREAT SOUTHN BANCORP COM 390905107 9,606 -373 -3.74 532 -10.76 0.0003
2025-02-12 2024-12-31 13F GREAT SOUTHN BANCORP COM 390905107 9,979 378 3.94 596 8.18 0.0004
2024-11-12 2024-09-30 13F GREAT SOUTHN BANCORP COM 390905107 9,601 2,165 29.12 550 33.17 0.0003
2024-08-12 2024-06-30 13F GREAT SOUTHN BANCORP COM 390905107 7,436 405 5.76 414 7.27 0.0003
2024-05-10 2024-03-31 13F GREAT SOUTHN BANCORP COM 390905107 7,031 1,639 30.40 385 20.31 0.0003
2024-02-09 2023-12-31 13F GREAT SOUTHN BANCORP COM 390905107 5,392 3,788 236.16 320 321.05 0.0002
2023-12-06 2023-09-30 13F/A-1 GREAT SOUTHN BANCORP COM 390905107 1,604 -5,681 -77.98 77 -79.40 0.0001
2023-11-09 2023-09-30 13F GREAT SOUTHN BANCORP COM 390905107 1,604 -5,681 77 0.0000
2023-08-10 2023-06-30 13F GREAT SOUTHN BANCORP COM 390905107 7,285 6,226 587.91 370 596.23 0.0002
2023-05-11 2023-03-31 13F GREAT SOUTHN BANCORP COM 390905107 1,059 484 84.17 54 55.88 0.0000
2023-02-09 2022-12-31 13F GREAT SOUTHN BANCORP COM 390905107 575 -25 -4.17 34 0.00 0.0000
2022-11-10 2022-09-30 13F GREAT SOUTHN BANCORP COM 390905107 600 -628 -51.14 34 -52.78 0.0000
2022-08-10 2022-06-30 13F GREAT SOUTHN BANCORP COM 390905107 1,228 -110 -8.22 72 -8.86 0.0001
2022-05-12 2022-03-31 13F GREAT SOUTHN BANCORP COM 390905107 1,338 -2,431 -64.50 79 -64.57 0.0000
2022-02-10 2021-12-31 13F GREAT SOUTHN BANCORP COM 390905107 3,769 1,633 76.45 223 90.60 0.0001
2021-11-10 2021-09-30 13F GREAT SOUTHN BANCORP COM 390905107 2,136 1,384 184.04 117 185.37 0.0001
2021-08-10 2021-06-30 13F GREAT SOUTHN BANCORP COM 390905107 752 -466 -38.26 41 -40.58 0.0000
2021-05-13 2021-03-31 13F GREAT SOUTHN BANCORP COM 390905107 1,218 -1,114 -47.77 69 -39.47 0.0000
2021-02-11 2020-12-31 13F GREAT SOUTHN BANCORP COM 390905107 2,332 1,564 203.65 114 307.14 0.0001
2020-11-12 2020-09-30 13F GREAT SOUTHN BANCORP COM 390905107 768 -2,889 -79.00 28 -81.08 0.0000
2020-08-12 2020-06-30 13F GREAT SOUTHN BANCORP COM 390905107 3,657 -124 -3.28 148 -3.27 0.0001
2020-05-12 2020-03-31 13F GREAT SOUTHN BANCORP COM 390905107 3,781 1,324 53.89 153 -1.92 0.0001
2020-02-12 2019-12-31 13F GREAT SOUTHN BANCORP COM 390905107 2,457 -1,728 -41.29 156 -34.45 0.0001
2019-11-08 2019-09-30 13F GREAT SOUTHN BANCORP COM 390905107 4,185 -87 -2.04 238 -7.03 0.0002
2019-08-12 2019-06-30 13F GREAT SOUTHN BANCORP COM 390905107 4,272 434 11.31 256 28.64 0.0002
2019-05-13 2019-03-31 13F GREAT SOUTHN BANCORP COM 390905107 3,838 1 0.03 199 12.43 0.0002
2019-02-12 2018-12-31 13F GREAT SOUTHN BANCORP COM 390905107 3,837 505 15.16 177 -3.80 0.0002
2018-11-13 2018-09-30 13F GREAT SOUTHN BANCORP COM 390905107 3,332 -90 -2.63 184 -5.64 0.0002
2018-08-10 2018-06-30 13F GREAT SOUTHN BANCORP COM 390905107 3,422 -390 -10.23 195 2.63 0.0002
2018-05-11 2018-03-31 13F GREAT SOUTHN BANCORP COM 390905107 3,812 -1,089 -22.22 190 -25.20 0.0002
2018-02-12 2017-12-31 13F GREAT SOUTHN BANCORP COM 390905107 4,901 1,464 42.60 254 32.98 0.0002
2017-11-13 2017-09-30 13F GREAT SOUTHN BANCORP COM 390905107 3,437 836 32.14 191 37.41 0.0002
2017-08-11 2017-06-30 13F GREAT SOUTHN BANCORP COM 390905107 2,601 -2,957 -53.20 139 -50.36 0.0001
2017-05-12 2017-03-31 13F GREAT SOUTHN BANCORP COM 390905107 5,558 -10,501 -65.39 280 -68.07 0.0002
2017-02-10 2016-12-31 13F GREAT SOUTHN BANCORP COM 390905107 16,059 12,521 353.90 877 509.03 0.0008
2016-11-10 2016-09-30 13F GREAT SOUTHN BANCORP COM 390905107 3,538 1,661 88.49 144 108.70 0.0001
2016-08-12 2016-06-30 13F GREAT SOUTHN BANCORP COM 390905107 1,877 -7,947 -80.89 69 -81.10 0.0001
2016-05-13 2016-03-31 13F GREAT SOUTHN BANCORP COM 390905107 9,824 3,468 54.56 365 26.74 0.0004
2016-02-12 2015-12-31 13F GREAT SOUTHN BANCORP COM 390905107 6,356 5,289 495.69 288 526.09 0.0003
2015-11-13 2015-09-30 13F GREAT SOUTHN BANCORP COM 390905107 1,067 -2,252 -67.85 46 -66.91 0.0000
2015-08-13 2015-06-30 13F GREAT SOUTHN BANCORP COM 390905107 3,319 -759 -18.61 139 -13.66 0.0001
2015-05-14 2015-03-31 13F GREAT SOUTHN BANCORP COM 390905107 4,078 -3,812 -48.31 161 -48.56 0.0002
2015-02-17 2014-12-31 13F GREAT SOUTHN BANCORP COM 390905107 7,890 4,277 118.38 313 184.55 0.0003
2014-11-14 2014-09-30 13F GREAT SOUTHN BANCORP COM 390905107 3,613 1,183 48.68 110 41.03 0.0001
2014-08-14 2014-06-30 13F GREAT SOUTHN BANCORP COM 390905107 2,430 -2,914 -54.53 78 -51.25 0.0001
2014-05-15 2014-03-31 13F GREAT SOUTHN BANCORP COM 390905107 5,344 -1,537 -22.34 160 -23.81 0.0002
2014-02-14 2013-12-31 13F GREAT SOUTHN BANCORP COM 390905107 6,881 3,700 116.32 210 133.33 0.0002
2013-11-14 2013-09-30 13F GREAT SOUTHN BANCORP COM 390905107 3,181 -2,624 -45.20 90 -42.31 0.0001
2013-08-14 2013-06-30 13F GREAT SOUTHN BANCORP COM 390905107 5,805 5,805 156 0.0002
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.