Axon Enterprise Inc (NASDAQ:AXON) shares are tumbling in Tuesday’s after-hours session after the company reported mixed financial results and announced a deal to acquire an emergency communications and response platform.AXON is among today’s weakest performers. Track the latest developments here.What To Know: Axon reported third-quarter revenue of $710.64 million, beating analyst estimates of $703.5 million. The company reported first-quarter adjusted earnings of $1.17 per share, missing estimates of $1.52 ...