After-hours movers: Amazon, Marvell, Apple, and more

After-hours, Amazon (AMZN.OQ) jumped after announcing a fresh $5 billion investment in AI firm Anthropic with the option to add up to $20 billion more tied to commercial milestones, boosting related AI suppliers. Marvell Technology (MRVL.OQ) rose following Amazon’s deal. Apple (AAPL.OQ) slipped after announcing a management change — Tim Cook will move to executive chairman and John Ternus will become CEO effective Sept. 1, 2026. Small-cap AXT said it plans a public offering, sending its shares down sharply. The moves reflect event-driven after-hours volatility across large-cap tech and smaller issuers, with policy and corporate actions driving directional price changes.