Chiron Real Estate (XRN) Held by Superinvestors
CHIRON REAL ESTATE INC (XRN) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $1.29M based on the latest available SEC Form 13F filings for the quarter ended September 30, 2026.
Markel Group Inc. is currently the largest disclosed institutional shareholder of XRN tracked by InsiderSet, reporting ownership valued at approximately $751,894 in its September 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 $663,206.46, representing an estimated loss of -11.80% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed XRN value among the investors covered in this analysis. Major shareholders include Markel Group Inc., Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in CHIRON REAL ESTATE INC (XRN).
This page ranks the largest institutional XRN 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 |
|---|---|---|---|---|---|---|---|
| Markel Group Inc. | Thomas Gayner | 0.01% | 21,631 | $751,894 | $663,206 | -$88,688 | -11.80% |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 14,297 | $536,423 | $438,346 | -$98,077 | -18.28% |
Frequently asked questions about XRN
Who are the largest superinvestors holding XRN?
The largest superinvestors holding XRN in the latest SEC Form 13F filings include Markel Group Inc. and Renaissance Technologies LLC. InsiderSet ranks these superinvestors by their latest reported XRN position.
What does the XRN superinvestors page include?
This page tracks XRN positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. CHIRON REAL ESTATE INC (XRN) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold XRN?
InsiderSet currently tracks 2 superinvestors reporting XRN holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own XRN.
How much XRN stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $1.29M in XRN holdings for Q3 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 XRN superinvestor holdings last updated?
The latest XRN superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended September 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 XRN 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 XRN position after the reporting date.
Are superinvestors buying or selling XRN?
Buying and selling can be analyzed by comparing XRN positions across consecutive 13F reporting periods. InsiderSet's XRN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View XRN ownership changes.
How have superinvestor XRN holdings changed over time?
InsiderSet tracks XRN holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.