RLI (RLI) Held by Superinvestors
RLI CORP (RLI) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $290.27M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Ariel Appreciation Fund is currently the largest disclosed institutional shareholder of RLI tracked by InsiderSet, reporting ownership valued at approximately $148.83M 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 $160.65M, representing an estimated gain of +7.94% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed RLI value among the investors covered in this analysis. Major shareholders include Ariel Appreciation Fund, Markel Group Inc., and several other long-term asset managers with concentrated positions in RLI CORP (RLI).
This page ranks the largest institutional RLI 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.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Ariel Appreciation Fund | John W. Rogers Jr. | 1.48% | 2,519,527 | $148,828,460 | $160,645,042 | +$11,816,582 | +7.94% |
| Markel Group Inc. | Thomas Gayner | 1.08% | 2,394,544 | $141,445,715 | $152,676,125 | +$11,230,410 | +7.94% |
Frequently asked questions about RLI
Who are the largest superinvestors holding RLI?
The largest superinvestors holding RLI in the latest SEC Form 13F filings include Ariel Appreciation Fund and Markel Group Inc.. InsiderSet ranks these superinvestors by their latest reported RLI position.
What does the RLI superinvestors page include?
This page tracks RLI positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. RLI CORP (RLI) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold RLI?
InsiderSet currently tracks 2 superinvestors reporting RLI holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own RLI.
How much RLI stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $290.27M in RLI 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 RLI superinvestor holdings last updated?
The latest RLI 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 RLI 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 RLI position after the reporting date.
Are superinvestors buying or selling RLI?
Buying and selling can be analyzed by comparing RLI positions across consecutive 13F reporting periods. InsiderSet's RLI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View RLI ownership changes.
How have superinvestor RLI holdings changed over time?
InsiderSet tracks RLI holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.