To get a roundup of TechCrunch’s biggest and most important stories delivered to your inbox every day at 3 p.m. PDT, subscribe here. As summer kicks into gear, the IPO market is mimicking the season by cranking up its temperature. Today, TechCrunch explored the IPO filings from venture-backed Marqeta and software startup WalkMe. Squarespace direct lists later this week, along with public debuts from Oatly and Procore on Thursday. All this is great news for late-stage startups and their backers. Not to mention lots of tech workers around the world….