ARX Accelerant Holdings: institutional ownership and insider trading
130 funds reported holding $915M of Accelerant Holdings in their latest 13F filings; in Q2 2026 funds net bought $105M, with 37 new positions and 26 funds selling out; over the last 12 months insiders bought $1.89M and sold $21.6M on the open market.
Famous investors holding ARX
- Ken Griffin (Citadel Advisors): $21.1M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $3.47M, 0.0% of the portfolio
- Chase Coleman (Tiger Global Management): $879K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $205K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $130K, 0.0% of the portfolio
Largest institutional holders of ARX
- Deer Park Road Corp — $90.6M
- SECURITY BENEFIT LIFE INSURANCE CO /KS/ — $68.8M
- FMR LLC — $66.0M
- BARINGS LLC — $61.7M
- Capital World Investors — $54.2M
- Keenan Capital, LLC — $46.8M
- AMERICAN CENTURY COMPANIES INC — $45.4M
- GILDER GAGNON HOWE & CO LLC — $43.7M
- BlackRock, Inc. (BLK) — $41.0M
- VANGUARD GROUP INC — $36.5M
Recent ARX insider trades
- Aug 21, 2026: Meriwether Karen Sue sold 542 shares ($10.6K)
- Aug 13, 2026: Hasley Nancy sold 20,489 shares ($401K)
- Aug 11, 2026: ONeill Francis James sold 152,835 shares ($1.88M)
- Aug 10, 2026: Radke Jeffrey L sold 80,000 shares ($967K)
5%+ owners
- Glazer Capital, LLC: 5.0% (Schedule 13G, filed Sep 30, 2026)