Ambiq Micro, Inc. (AMBQ): insider trading, Congress trades & who owns it

Insider signal
25/100
Heavy insider selling · 90 days
Insider buys
$0
0 buyers · 12 months
Insider sales
$37.5M
8 sellers · 12 months
Funds holding
185
13F · Q2 2026
Congress trades
None
none in 2 years

Over the past year there were no insider purchases at Ambiq Micro, Inc.. Eight insiders sold roughly $37.5 million instead.

Selling on its own is common and often pre-planned (10b5-1 plans, taxes, diversification), so it matters more when it is unusually heavy or broad.

On the institutional side, 185 funds reported holding AMBQ at the end of Q2 2026, and more funds bought than sold. Zooming out by quarter: 3 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters.

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Latest insider trades in AMBQ

FiledInsiderRoleTypeSharesPriceValueSource
Oct 6, 2026Winzeler Jeffrey GCFOSell284$71.86$20KSEC
Oct 6, 2026Hanson Scott McLeanExecutive OfficerSell4,500$69.77$314KSEC
Oct 6, 2026Esaka FumihideCEOSell7,113$69.11$492KSEC
Oct 6, 2026Esaka FumihideCEOSell862$71.86$62KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell2,492$69.11$172KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell1,797$67.29$121KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell100$69.51$7KSEC
Oct 6, 2026Winzeler Jeffrey GCFOSell2,343$69.11$162KSEC
Oct 6, 2026Winzeler Jeffrey GCFOSell2,828$69.77$197KSEC
Oct 6, 2026Hanson Scott McLeanExecutive OfficerSell3,728$69.11$258KSEC
Oct 6, 2026Hanson Scott McLeanExecutive OfficerSell452$71.86$32KSEC
Oct 6, 2026Esaka FumihideCEOSell8,585$69.77$599KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell3,008$69.77$210KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell302$71.86$22KSEC
Oct 6, 2026Chen Sean ChihhsiangCOOSell5,508$66.38$366KSEC

Questions about AMBQ

Are insiders buying or selling AMBQ stock?

In the last 12 months Ambiq Micro, Inc. insiders made open-market purchases worth about $0 and sales worth about $37.5 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.

When was the last insider trade in AMBQ?

The most recent open-market insider trade in AMBQ was filed on 2026-10-06.

How many institutions own AMBQ?

185 investment managers reported holding AMBQ in SEC Form 13F filings for Q2 2026.

Has any member of Congress traded AMBQ?

No congressional trades in AMBQ were reported in the past two years. The full list is free on CapitalSnitch.

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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).