Francis James Oneill sold $3.1M of ARX stock

Francis James Oneill, Co-Founder, Chief U/W Officer of Accelerant Holdings (ARX), sold 215,114 shares of ARX stock worth $3.1M, per an SEC Form 4 filed Jul 29, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Jul 27, 2026, 2 days before it was made public.

ARX has moved +35.9% since the trade date, from $14.61 to $19.85 (Nov 13, 2026 close).