CFO Winzeler Surrenders 5,455 Of Ambiq Micro Inc >AMBQ

SOURCE: Form 4 ISSUER: Ambiq Micro Inc SYMBOL: AMBQ FILER: Winzeler Jeffrey G TITLE: Chief Financial Officer DATE TRANSACTION SHARES PRICE VALUE 10/2/26 Surrender* 5,455 $69.60 $379,645 OWNERSHIP: 100,844 (Direct) * - Insiders can surrender shares back to the company to pay taxes or cover the cost of an option exercise or vesting. --------------------------------------- HISTORICAL ACTIVITY -------------------------------------- AVG REMAINING INSIDER NAME ROLE TRADE DATES TRANS SHARES FLAGS PRICE HOLDINGS Chen Sean Chihhsiang Pres 10/05/26 Sell 8,205 b 67.81 106,268 Hanson Scott McLean Officer/Dir 09/15/26 Sell 7,000 bo 60.36 221,226 Esaka Fumihide CEO 09/11-09/15/26 Sell 63,500 bo 61.65 460,460 Chen Sean Chihhsiang Pres 09/14/26 Sell 15,000 bo 60.14 120,275 Zhang Ker Dir 09/11/26 Sell 10,000 63.67 20,366 Chen Sean Chihhsiang Pres 09/04/26 Sell 15,000 bo 57.38 120,275 Zhang Ker Dir 09/04/26 Sell 185 o 56.92 30,366 Esaka Fumihide CEO 09/01-09/02/26 Sell 60,000 o 56.44 460,460 Esaka Fumihide CEO 08/31/26 Sell 48,500 bo 57.68 460,460 Hanson Scott McLean Officer/Dir 08/26-08/27/26 Sell 55,000 o 59.86 221,226 Esaka Fumihide CEO 08/14/26 Sell 13,500 bo 64.31 451,189 Hanson Scott Mc