Anyone with experience replacing rear window?

Shattered. Not the entire window; smash and grab - took a laptop bag and duffel bag. Wondering the cost, unsure if I should claim (GEICO, state of MA if it helps) or deal out of pocket (prob going to be costly...)
Haven't put an insurance claim in years - not clear on consequences, etc.

Thanks for all the replies. Went and put in a claim (GEICO online) - arrangements already made with JN Philips Autoglass. Zero deduct, but who knows how much my rates would go up.