United Guardian (UG) Held by Superinvestors

UNITED GUARDIAN INC (UG) is currently held by 1 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $1.19M 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 UG tracked by InsiderSet, reporting ownership valued at approximately $1.19M 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 $1.19M, representing an estimated loss of -0.28% since the filing period.

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

This page ranks the largest institutional UG 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 Simons0.00%166,766$1,190,709$1,187,374-$3,335-0.28%
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Frequently asked questions about UG

  • Who are the largest superinvestors holding UG?

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

  • What does the UG superinvestors page include?

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

  • How many superinvestors hold UG?

    InsiderSet currently tracks 1 superinvestors reporting UG holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own UG.

  • How much UG stock do superinvestors hold?

    Superinvestors tracked by InsiderSet disclosed approximately $1.19M in UG 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 UG superinvestor holdings last updated?

    The latest UG 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 UG 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 UG position after the reporting date.

  • Are superinvestors buying or selling UG?

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

  • How have superinvestor UG holdings changed over time?

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