Ambiq Micro Ownership & Insider Activity

Ambiq Micro (AMBQ) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 4.6% of shares outstanding. Institutional investors hold 35.3%.

Shares Outstanding

24.185M

Shares Float

22.912M

Insider Shares Owned

1.095M

Insider % Owned

4.6%

Institutional Shares Held

8.528M

Institutional % Held

35.3%

Ownership Breakdown

Net Insider Activity by Month

Ambiq Micro Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Aug 26, 2026	McLean Scott Hanson	CHIEF TECHNOLOGY OFFICER	SELL-OPTIONS	10.000K	$33.91	$2.8M
Aug 14, 2026	McLean Scott Hanson	CHIEF TECHNOLOGY OFFICER	SELL-OPTIONS	—	$36.25	$394K
Aug 14, 2026	Fumihide Esaka	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$36.25	$760K
May 27, 2026	Timothy Chen	—	SELL	70.592K	$79.79	$5.6M
May 15, 2026	Chihhsiang Sean Chen	PRESIDENT AND COO	SELL-OPTIONS	—	$38.38	$3.6M
May 14, 2026	Jeffrey Winzeler	CHIEF FINANCIAL OFFICER	SELL-OPTIONS	5.952K	$43.35	$1.3M
May 14, 2026	McLean Scott Hanson	CHIEF TECHNOLOGY OFFICER	SELL-OPTIONS	8.100K	$38.68	$558K
May 14, 2026	Fumihide Esaka	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	60.000K	$39.34	$3.2M
Apr 2, 2026	Michele Kim Connors	GENERAL COUNSEL	SELL	811.000	$26.15	$21K