Meet Contender: The Biggest Great White Shark Ever Tagged in the Atlantic, Now Cruising Off Massachusetts

Watch this: nearly 14 feet long, 1,653 pounds, and currently swimming somewhere off the New England coast. Meet Contender, the largest male great white shark ever tagged in the Atlantic Ocean.

The nonprofit research group OCEARCH first tagged Contender in January 2025 near the Florida-Georgia coast, taking biological samples and fitting him with a satellite tracker before releasing him back into the ocean. Since then, he’s covered well over a thousand miles, and this summer his signal pinged off Nantucket — putting one of the ocean’s true giants within range of one of New England’s busiest summer coastlines.

Just how big is he, really? At nearly 14 feet and estimated to be around 32 years old, Contender is what OCEARCH calls a genuine “ocean giant.” Great white sharks typically live 30 to 40 years, with some reaching 70, so Contender is very much in his prime.

Here’s how researchers know where he is. Contender carries a SPOT tag, which sends a location ping whenever his dorsal fin breaks the surface — what OCEARCH calls a “ping.” Those pings feed into a live tracking map available to the public, letting anyone follow his movements in near real time. OCEARCH’s team says the tag will keep providing valuable data for roughly five years, helping scientists understand exactly how apex predators like Contender migrate along the Atlantic coast.

“This apex predator is making moves along the Atlantic coast, giving us more valuable data on the lives of white sharks in the Northwest Atlantic,” OCEARCH wrote of his journey. “Every ping helps us get one step closer to understanding and protecting these incredible animals.”

Why it matters: Every bit of tracking data on animals like Contender helps researchers understand where great whites feed, breed, and travel — knowledge that’s essential for keeping both sharks and beachgoers safer as these predators move along the coast each summer. Great whites rarely target humans and typically only bite out of mistaken identity, usually when a swimmer is seen from below and resembles their natural prey.

A shark this size, this well-studied, cruising past one of the country’s most popular beach towns — that’s a pretty remarkable reminder of what’s actually sharing the water with us.