Form 4 Filing for Ambiq Micro, Inc.

On October 2, 2026, Fumihide Esaka, Chief Executive Officer and Director of Ambiq Micro, Inc., reported the sale of 7,113 shares of Common Stock for a weighted average price of $69.11. The sale was conducted under a sell-to-cover policy to satisfy tax obligations incurred from vested restricted stock units. This resulted in 453,347 shares of Common Stock remaining. Additionally, 8,585 shares were sold at a weighted average price of $69.77, leaving 444,762 shares. Another transaction involved the sale of 862 shares at a weighted average price of $71.86, leaving 443,900 shares. These sales were executed at prices ranging from $68.41 to $72.26. The filing was signed by Jeffrey Winzeler as Attorney-in-Fact on October 6, 2026.