RE:Question re insider sellingCan't answer the most recent question but given what AT has done in the past year and that tax filing season is here, best guess is that insiders need some funds to pay capital gains tax.
Something else that is interesting is that the trading volume of TTD and AT has pretty much been identical for the past few weeks. But today TTD has only traded 35% as much (260K vs 732K). And the NASDAQ is now up nearly 200. GLTA