Southside Bancshares (SBSI) Held by Superinvestors

SOUTHSIDE BANCSHARES INC (SBSI) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $18.86M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.

Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of SBSI tracked by InsiderSet, reporting ownership valued at approximately $14.75M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $13.31M, representing an estimated loss of -9.75% since the filing period.

The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed SBSI value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Third Avenue Management, and several other long-term asset managers with concentrated positions in SOUTHSIDE BANCSHARES INC (SBSI).

This page ranks the largest institutional SBSI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.

NameInvestor/ManagerPortfolio %QuantityReported BalanceCurrent Estimated ValueGain/loss Since FilingEstimated Portfolio Performance
Renaissance Technologies LLCJim Simons0.02%419,146$14,749,748$13,312,077-$1,437,671-9.75%
Third Avenue ManagementMarty Whitman0.66%116,879$4,112,972$3,712,077-$400,895-9.75%
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Frequently asked questions about SBSI

  • Who are the largest superinvestors holding SBSI?

    The largest superinvestors holding SBSI in the latest SEC Form 13F filings include Renaissance Technologies LLC and Third Avenue Management. InsiderSet ranks these superinvestors by their latest reported SBSI position.

  • What does the SBSI superinvestors page include?

    This page tracks SBSI positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. SOUTHSIDE BANCSHARES INC (SBSI) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.

  • How many superinvestors hold SBSI?

    InsiderSet currently tracks 2 superinvestors reporting SBSI holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own SBSI.

  • How much SBSI stock do superinvestors hold?

    Superinvestors tracked by InsiderSet disclosed approximately $18.86M in SBSI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.

  • When were SBSI superinvestor holdings last updated?

    The latest SBSI superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.

  • Are superinvestor SBSI holdings real-time?

    No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its SBSI position after the reporting date.

  • Are superinvestors buying or selling SBSI?

    Buying and selling can be analyzed by comparing SBSI positions across consecutive 13F reporting periods. InsiderSet's SBSI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SBSI ownership changes.

  • How have superinvestor SBSI holdings changed over time?

    InsiderSet tracks SBSI holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.