Form 4 Filing for Ambiq Micro, Inc.

This filing details stock transactions by Chen Sean Chihhsiang, President and COO of Ambiq Micro, Inc. On October 14, 2026, 15,000 shares of Common Stock were acquired at $8.12 per share, alongside the exercise of a stock option for 15,000 shares. Concurrently, several sales of Common Stock occurred: 7,539 shares at a weighted average price of $50.129, 1,261 shares at $51.5306, 2,000 shares at $52.4682, 4,000 shares at $53.4363, and 200 shares at $54.27. These transactions were conducted under a Rule 10b5-1 plan. Following these transactions, the reporting owner holds 106,268 shares of Common Stock directly. Footnotes provide further details on the weighted average sale prices and the vesting schedule of the stock option.