Mental health benefits provider Lyra Health joins unicorn club after landing $110M

Welcome Lyra Health Inc., Burlingame-based mental health benefits provider, to the billion-dollar-plus valuation club. The startup announced Tuesday it closed a deal on a huge $110 million Series D financing round, pushing the company over the unicorn benchmark with a new $1.1 billion valuation. The fresh capital, led by New York-based investment firm Addition, comes just months after Lyra raised a $75 million Series C. "We were not initially planning to raise another round after closing our…