Mainsail Gp Iii, Llc sold $64K of Brilliant Earth Group, Inc. (BRLT) stock

Mainsail Gp Iii, Llc, 10% owner of Brilliant Earth Group, Inc. (BRLT), sold 50,000 shares of BRLT stock worth $64K, per an SEC Form 4 filed Aug 12, 2026.

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

The trade happened on Aug 10, 2026, 2 days before it was made public.

BRLT has moved +9.4% since the trade date, from $1.28 to $1.40 (Sep 21, 2026 close).