Southside Bancshares, Inc.
US ˙ NYSE ˙ US84470P1093

SecuritySBSI / Southside Bancshares, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership95,063 shares
Latest Disclosed Value $ 2,955,509
Citadel Advisors Llc ownership in SBSI / Southside Bancshares, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 95,063 shares of Southside Bancshares, Inc. (US:SBSI) valued at $2,955,509 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 116,421 shares of Southside Bancshares, Inc.. This represents a change in shares of -18.35% during the quarter. The current value of the position is $3,151,338 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (SBSI) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

SBSI / Southside Bancshares, Inc. Historical Put/Call Ratio
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 SOUTHSIDE BANCSHARES COM 84470P109 95,063 -21,358 -18.35 2,956 -16.48 0.0004
2026-02-17 2025-12-31 13F SOUTHSIDE BANCSHARES COM 84470P109 116,421 27,577 31.04 3,538 41.01 0.0005
2025-11-14 2025-09-30 13F SOUTHSIDE BANCSHARES COM 84470P109 88,844 -14,968 -14.42 2,510 -17.87 0.0003
2025-08-14 2025-06-30 13F SOUTHSIDE BANCSHARES COM 84470P109 103,812 28,490 37.82 3,055 40.07 0.0005
2025-05-15 2025-03-31 13F SOUTHSIDE BANCSHARES COM 84470P109 75,322 5,032 7.16 2,181 -2.28 0.0004
2025-02-14 2024-12-31 13F SOUTHSIDE BANCSHARES COM 84470P109 70,290 1,013 1.46 2,232 -3.59 0.0004
2024-11-14 2024-09-30 13F SOUTHSIDE BANCSHARES COM 84470P109 69,277 -50,082 -41.96 2,316 -29.74 0.0004
2024-08-14 2024-06-30 13F SOUTHSIDE BANCSHARES COM 84470P109 119,359 33,828 39.55 3,296 31.80 0.0007
2024-05-15 2024-03-31 13F SOUTHSIDE BANCSHARES COM 84470P109 85,531 51,793 153.52 2,500 136.74 0.0005
2024-02-14 2023-12-31 13F SOUTHSIDE BANCSHARES COM 84470P109 33,738 -18,339 -35.22 1,057 -29.32 0.0002
2023-11-14 2023-09-30 13F SOUTHSIDE BANCSHARES COM 84470P109 52,077 -18,483 -26.19 1,495 -19.02 0.0003
2023-08-14 2023-06-30 13F SOUTHSIDE BANCSHARES COM 84470P109 70,560 42,816 154.33 1,846 100.33 0.0004
2023-05-15 2023-03-31 13F SOUTHSIDE BANCSHARES COM 84470P109 27,744 -31,233 -52.96 921 -56.60 0.0002
2023-02-14 2022-12-31 13F SOUTHSIDE BANCSHARES COM 84470P109 58,977 -80,595 -57.74 2,123 -57.01 0.0005
2022-11-14 2022-09-30 13F SOUTHSIDE BANCSHARES COM 84470P109 139,572 123,651 776.65 4,936 728.19 0.0011
2022-08-15 2022-06-30 13F SOUTHSIDE BANCSHARES COM 84470P109 15,921 15,921 596 0.0002
2022-02-14 2021-12-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 0 -19,002 -100.00 0 -100.00
2021-11-15 2021-09-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 19,002 -36,373 -65.68 728 -65.61 0.0002
2021-08-16 2021-06-30 13F SOUTHSIDE BANCSHARES COM 84470P109 55,375 -15,989 -22.40 2,117 -22.99 0.0005
2021-05-21 2021-03-31 13F/A-1 SOUTHSIDE BANCSHARES COM 84470P109 71,364 23,786 49.99 2,749 86.25 0.0007
2021-05-17 2021-03-31 13F SOUTHSIDE BANCSHARES COM 84470P109 71,364 23,786 2,749 0.0007
2021-02-16 2020-12-31 13F SOUTHSIDE BANCSHARES COM 84470P109 47,578 10,413 28.02 1,476 62.56 0.0004
2020-11-16 2020-09-30 13F SOUTHSIDE BANCSHARES COM 84470P109 37,165 25,760 225.87 908 187.34 0.0003
2020-08-14 2020-06-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 11,405 -15,705 -57.93 316 -61.60 0.0001
2020-05-15 2020-03-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 27,110 17,453 180.73 823 129.25 0.0004
2020-02-14 2019-12-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 9,657 -85,386 -89.84 359 -88.33 0.0002
2019-08-14 2019-06-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 95,043 5,923 6.65 3,077 3.92 0.0014
2019-05-15 2019-03-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 89,120 -12,764 -12.53 2,961 -8.47 0.0015
2019-02-14 2018-12-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 101,884 -13,347 -11.58 3,235 -19.33 0.0018
2018-11-13 2018-09-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 115,231 -9,102 -7.32 4,010 -4.25 0.0018
2018-08-14 2018-06-30 13F/A-1 SOUTHSIDE BANCSHARES Cmn 84470P109 124,333 71,257 134.25 4,188 127.11 0.0021
2018-08-10 2018-06-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 124,333 71,257 4,188
2018-05-14 2018-03-31 13F/A-1 SOUTHSIDE BANCSHARES Cmn 84470P109 53,076 -7,002 -11.65 1,844 -8.85 0.0010
2018-05-11 2018-03-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 53,076 -7,002 1,844
2018-02-09 2017-12-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 60,078 11,431 23.50 2,023 14.36 0.0012
2017-11-09 2017-09-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 48,647 3,315 7.31 1,769 11.68 0.0014
2017-08-11 2017-06-30 13F SOUTHSIDE BANCSHARES Cmn 84470P109 45,332 22,647 99.83 1,584 107.87 0.0013
2017-05-12 2017-03-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 22,685 16,414 261.74 762 222.88 0.0007
2017-02-10 2016-12-31 13F SOUTHSIDE BANCSHARES Cmn 84470P109 6,271 6,271 236 0.0002
2017-01-31 2016-03-31 13F/A-1 SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 0 -13,325 -100.00 0 -100.00
2017-01-31 2015-12-31 13F/A-1 SOUTHSIDE BANCSHARES Cmn 84470P109 13,325 13,325 0.00 320 0.0003
2016-02-12 2015-12-31 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 13,325 320
2015-08-14 2015-06-30 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 0 -16,248 -100.00 0 -100.00
2015-05-15 2015-03-31 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 16,248 -1,579 -8.86 466 -9.69 0.0005
2015-02-17 2014-12-31 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 17,827 1,937 12.19 516 -2.27 0.0006
2014-11-14 2014-09-30 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 15,890 930 6.22 528 21.94 0.0007
2014-08-14 2014-06-30 13F SOUTHSIDE BANCSHARES INC CMN STOCK Cmn 84470P109 14,960 14,960 433 0.0006
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F SOUTHSIDE BANCSHARES COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F SOUTHSIDE BANCSHARES COM Call 2,000 66.67 58 50.00 n/a n/a n/a
2025-02-14 2024-12-31 13F SOUTHSIDE BANCSHARES COM Call 1,200 -14.29 38 -17.39 n/a n/a n/a
2024-11-14 2024-09-30 13F SOUTHSIDE BANCSHARES COM Call 1,400 -48.15 47 -37.84 n/a n/a n/a
2024-08-14 2024-06-30 13F SOUTHSIDE BANCSHARES COM Call 2,700 -42.55 75 -45.99 n/a n/a n/a
2024-05-15 2024-03-31 13F SOUTHSIDE BANCSHARES COM Call 4,700 193.75 137 174.00 n/a n/a n/a
2024-02-14 2023-12-31 13F SOUTHSIDE BANCSHARES COM Call 1,600 -23.81 50 -16.67 n/a n/a n/a
2023-11-14 2023-09-30 13F SOUTHSIDE BANCSHARES COM Call 2,100 200.00 60 233.33 n/a n/a n/a
2023-08-14 2023-06-30 13F SOUTHSIDE BANCSHARES COM Call 700 -12.50 18 -30.77 n/a n/a n/a
2023-05-15 2023-03-31 13F SOUTHSIDE BANCSHARES COM Call 800 700.00 27 766.67 n/a n/a n/a
2023-02-14 2022-12-31 13F SOUTHSIDE BANCSHARES COM Call 100 4 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F SOUTHSIDE BANCSHARES COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F SOUTHSIDE BANCSHARES COM Put 1,300 333.33 38 311.11 n/a n/a n/a
2025-02-14 2024-12-31 13F SOUTHSIDE BANCSHARES COM Put 300 -88.46 10 -89.53 n/a n/a n/a
2024-11-14 2024-09-30 13F SOUTHSIDE BANCSHARES COM Put 2,600 -63.89 87 -56.57 n/a n/a n/a
2024-08-14 2024-06-30 13F SOUTHSIDE BANCSHARES COM Put 7,200 20.00 199 13.14 n/a n/a n/a
2024-05-15 2024-03-31 13F SOUTHSIDE BANCSHARES COM Put 6,000 5,900.00 175 5,733.33 n/a n/a n/a
2024-02-14 2023-12-31 13F SOUTHSIDE BANCSHARES COM Put 100 3 n/a n/a n/a
2023-11-14 2023-09-30 13F SOUTHSIDE BANCSHARES COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F SOUTHSIDE BANCSHARES COM Put 1,100 -26.67 29 -42.86 n/a n/a n/a
2023-05-15 2023-03-31 13F SOUTHSIDE BANCSHARES COM Put 1,500 -48.28 50 -52.88 n/a n/a n/a
2023-02-14 2022-12-31 13F SOUTHSIDE BANCSHARES COM Put 2,900 104 n/a n/a n/a
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.