Chen Sean Chihhsiang sold AMBQ

October 5, 2026 · Form 4 insider transaction

Chen Sean Chihhsiang sold 800 shares of Ambiq Micro, Inc. at $68.08 per share, a transaction worth $54.5K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
800
Price
$68.08
Total value
$54.5K
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateOctober 5, 2026
Filing dateOctober 6, 2026
Shares owned after106,368
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

The transactions occurred under a Rule 10b5-1 plan adopted by the Reporting Person on June 5, 2026.; The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $67.93 to $68.17 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

View the original Form 4 on SEC EDGAR