Esaka Fumihide bought AMBQ

August 14, 2026 · Form 4 insider transaction

Esaka Fumihide bought 13,500 shares of Ambiq Micro, Inc. at $8.12 per share, a transaction worth $109.6K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Acquired (buy-side)
Shares
13,500
Price
$8.12
Total value
$109.6K
RoleOfficer, Director
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateAugust 14, 2026
Filing dateAugust 18, 2026
Shares owned after464,689
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026.

View the original Form 4 on SEC EDGAR