Accelerant Holdings (ARX) Held by Superinvestors
Accelerant Holdings (ARX) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $4.35M 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 ARX tracked by InsiderSet, reporting ownership valued at approximately $3.47M 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 $5.87M, representing an estimated gain of +69.03% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed ARX value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Tiger Global Management, and several other long-term asset managers with concentrated positions in Accelerant Holdings (ARX).
This page ranks the largest institutional ARX 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 |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.00% | 296,100 | $3,470,292 | $5,865,741 | +$2,395,449 | +69.03% |
| Tiger Global Management | Chase Coleman III | 0.00% | 75,000 | $879,000 | $1,485,750 | +$606,750 | +69.03% |
Frequently asked questions about ARX
Who are the largest superinvestors holding ARX?
The largest superinvestors holding ARX in the latest SEC Form 13F filings include Renaissance Technologies LLC and Tiger Global Management. InsiderSet ranks these superinvestors by their latest reported ARX position.
What does the ARX superinvestors page include?
This page tracks ARX positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. Accelerant Holdings (ARX) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold ARX?
InsiderSet currently tracks 2 superinvestors reporting ARX holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own ARX.
How much ARX stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $4.35M in ARX 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 ARX superinvestor holdings last updated?
The latest ARX 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 ARX 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 ARX position after the reporting date.
Are superinvestors buying or selling ARX?
Buying and selling can be analyzed by comparing ARX positions across consecutive 13F reporting periods. InsiderSet's ARX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ARX ownership changes.
How have superinvestor ARX holdings changed over time?
InsiderSet tracks ARX holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.