Ambiq Micro, Inc. priced its initial public offering at $78.00 a share, offering 2,000,000 shares of common stock, to list on the New York Stock Exchange under the symbol AMBQ. It filed a Form S-1 registration statement for an initial public offering on July 3, 2025. As of November 6, 2026, its final prospectus is on file (Form 424B4, June 25, 2026).
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Key facts
- · What it is: Final prospectus filed: the offering is priced · 424B4
- · What it is: Registration statement filed · S-1
- · What it is: Final prospectus filed: the offering is priced · 424B4
- · What it is: Registration statement filed · S-1
- · What it is: Final prospectus filed: the offering is priced · 424B4
Ambiq Micro, Inc. filed a Form S-1 registration statement for an initial public offering on 2025-07-03. It has amended it 1 time. It filed its final prospectus on 2026-06-25, at a public offering price of $78.00 per share. Each fact below is quoted from the filing named with it.
What the filings say
Listing
Our common stock is listed on the New York Stock Exchange (NYSE) under the symbol “AMBQ.” On June 23, 2026, the last reported price of our common stock on the NYSE was $79.78 per share.From the 424B4 filed 2026-06-25
Shares offered
We are offering 2,000,000 shares of our common stock.From the 424B4 filed 2026-06-25
Offering price
Table of Contents of $62.18 per share, representing the difference between the public offering price of $78.00 per share, and the as adjusted net tangible book value per share of our common stock as of March 31, 2026.From the 424B4 filed 2026-06-25
Use of proceeds
We currently intend to use the net proceeds from this offering primarily for general corporate purposes, including working capital, sales and marketing activities, product development, general and administrative matters, and capital expenditures, although we do not currently have any specific or preliminary plans with respect to the use of proceeds for such purposes.From the 424B4 filed 2026-06-25
Net loss or income
We incurred a net loss of $10.2 million and $8.3 million for the three months ended March 31, 2026 and 2025, respectively, and $36.5 million and $39.7 million for the years ended December 31, 2025 and 2024, respectively, and had an accumulated deficit of $366.9 million and $356.7 million as of March 31, 2026 and December 31, 2025, respectively.From the S-1 filed 2026-06-22
Timeline
| Filed | What it is | Filing |
|---|---|---|
| 2025-07-03 | Registration statement filed | S-1 |
| 2025-07-21 | Registration statement amended | S-1/A |
| 2025-07-31 | Final prospectus filed: the offering is priced | 424B4 |
| 2026-01-21 | Registration statement filed | S-1 |
| 2026-01-26 | Final prospectus filed: the offering is priced | 424B4 |
| 2026-06-22 | Registration statement filed | S-1 |
| 2026-06-25 | Final prospectus filed: the offering is priced | 424B4 |
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Where this comes from
A company that wants to sell shares to the public in the United States files a registration statement with the SEC: Form S-1 for a US company, Form F-1 for a foreign one. It amends that statement as the figures and terms are filled in, usually adding the expected price range shortly before the offering. Once the offering is priced it files its final prospectus under Rule 424(b)(4). A company that decides not to go ahead can ask for the registration statement to be withdrawn on Form RW.
Every row on this page is one of those filings, linked to the filing itself. The facts are the company's own sentences, quoted from the filing named beside each one and never reworded; where no filing states a fact in a sentence that can be read exactly, this page leaves it out. A filing is the company's statement of its plans and its figures, not a verification of them, and nothing here is investment advice.