Ambiq Announces Public Offering of Common Stock

Rhea-AI Summary

Ambiq (NYSE: AMBQ) announced on January 21, 2026 the commencement of an underwritten public offering of 2,200,000 shares of common stock, including 2,157,051 shares offered by Ambiq and 42,949 shares offered by certain stockholders.

The company said it expects to grant underwriters a 30‑day option to purchase up to an additional 330,000 shares at the public offering price, less underwriting discounts and commissions. The offering is subject to market conditions and the registration statement on Form S‑1 filed with the SEC has not yet become effective.

BofA Securities and UBS Investment Bank are joint lead book‑running managers; Needham and Stifel are joint book‑running managers. No assurance exists as to whether or when the offering will be completed.

News Market Reaction

+0.03%

9 alerts

+0.03% News Effect

+5.1% Peak in 42 min

+$202K Valuation Impact

$673M Market Cap

0.4x Rel. Volume

On the day this news was published, AMBQ gained 0.03%, reflecting a mild positive market reaction. Argus tracked a peak move of +5.1% during that session. Our momentum scanner triggered 9 alerts that day, indicating moderate trading interest and price volatility. This price movement added approximately $202K to the company's valuation, bringing the market cap to $673M at that time.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Primary shares offered: 2,157,051 shares Total base offering size: 2,200,000 shares Selling stockholder shares: 42,949 shares +2 more

5 metrics

Primary shares offered 2,157,051 shares Common stock offered by Ambiq in underwritten public offering

Total base offering size 2,200,000 shares Combined company and selling stockholder shares in offering

Selling stockholder shares 42,949 shares Common stock offered by existing Ambiq stockholders

Underwriters’ option 330,000 shares 30-day option for additional common stock at offering price

Option period 30 days Duration of underwriters’ option to purchase additional shares

Market Reality Check

Price: $31.72 Vol: Volume 133,528 is 1.22x t...

normal vol

$31.72 Last Close

Volume Volume 133,528 is 1.22x the 20-day average 109,896 ahead of the offering. normal

Technical Shares at $33.02 are trading above the 200-day MA of $31.96, yet sit 36.21% below the 52-week high.

Peers on Argus

AMBQ fell 4.68% while key peers like IMOS, CEVA and AOSL showed modest gains and...

1 Up

AMBQ fell 4.68% while key peers like IMOS, CEVA and AOSL showed modest gains and POET appeared in momentum scanners up about 4%. With only one peer in momentum and it moving higher, today’s weakness looks company-specific to the AMBQ offering rather than a sector-wide semiconductor move.

Historical Context

5 past events · Latest: Jan 06 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Jan 06	Product launch	Positive	+5.5%	Launch of Atomiq ultra-low-power NPU SoC for always-on edge AI.
Nov 06	Earnings update	Positive	+2.8%	Q3 2025 results beat guidance with higher gross margin and improved losses.
Oct 28	Product launch	Positive	-2.7%	Apollo510 Lite SoCs introduced to expand Apollo5 family for edge AI.
Oct 16	Earnings call notice	Neutral	-6.8%	Announcement of timing and access details for Q3 2025 earnings call.
Oct 09	Recognition/news	Positive	-4.5%	TIME named SPOT platform one of the Best Inventions of 2025.

Pattern Detected

Recent history shows AMBQ sometimes selling off on otherwise positive or neutral announcements, with several divergences where upbeat product or recognition news was followed by share price declines.

Recent Company History

Over the last few months, Ambiq has combined product innovation with capital markets activity. Launches like Atomiq and Apollo510 Lite SoCs underscored its focus on ultra‑low‑power edge AI, while TIME recognition for the SPOT platform highlighted brand visibility. Q3 2025 results showed $18.165M net sales and improved gross margin. Against this backdrop, today’s common stock offering adds a capital-raising step shortly after its July 2025 IPO and January S‑1 filing detailing a 2,200,000‑share deal.

Market Pulse Summary

This announcement details an underwritten public offering of 2,200,000 common shares, mostly primary...

Analysis

This announcement details an underwritten public offering of 2,200,000 common shares, mostly primary issuance from Ambiq, plus an underwriters’ 30-day option for 330,000 additional shares. The related Form S‑1 filing outlines share counts and highlights Ambiq’s ultra‑low‑power edge AI focus. Historically, the stock has shown mixed reactions around news, with both aligned and divergent moves. Investors would likely watch final pricing, total shares issued, and how proceeds support growth versus dilution concerns.

Key Terms

underwritten public offering, common stock, registration statement on form s-1, prospectus, +1 more

5 terms

underwritten public offering financial

"today announced the commencement of an underwritten public offering of 2,200,000 shares"

An underwritten public offering is when a company sells new shares of its stock to the public with the help of a financial firm, called an underwriter. The underwriter agrees to buy all the shares upfront, reducing the company's risk, and then sells them to investors. This process helps companies raise money quickly and confidently from a wide range of buyers.

common stock financial

"offering of 2,200,000 shares of its common stock, which includes 2,157,051 shares"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

registration statement on form s-1 regulatory

"A registration statement on Form S-1, including a prospectus, relating to the proposed offering"

A registration statement on Form S-1 is a detailed filing a company submits to the U.S. securities regulator to register new shares for public sale; it includes a plain-language prospectus, financial statements, business description and risk factors. For investors it matters because it provides the official, comprehensive blueprint of the offering — like an owner’s manual — allowing buyers to assess risks, inspect financial health and compare valuation before deciding to invest.

prospectus regulatory

"A registration statement on Form S-1, including a prospectus, relating to the proposed offering"

A prospectus is a detailed document that explains a company's plans for offering new shares or investments to the public. It’s important because it provides potential investors with key information about the company’s business, risks, and how they might make money, helping them decide whether to invest. Think of it as a guidebook for understanding what you're buying into.

book-running managers financial

"BofA Securities and UBS Investment Bank are acting as joint lead book-running managers"

Book-running managers are the main banks or financial firms that organize and oversee a company's sale of new stocks or bonds. They help set the price, decide how many to sell, and coordinate the process to make sure everything runs smoothly. Their role is important because they guide the company through the complex process of raising money from investors.

AI-generated analysis. Not financial advice.

AUSTIN, Texas, Jan. 21, 2026 (GLOBE NEWSWIRE) -- Ambiq Micro, Inc. (“Ambiq”) (NYSE: AMBQ), a technology leader in ultra-low-power semiconductor solutions for edge AI, today announced the commencement of an underwritten public offering of 2,200,000 shares of its common stock, which includes 2,157,051 shares of common stock offered by Ambiq and 42,949 shares of common stock offered by certain of Ambiq’s stockholders. In addition, Ambiq expects to grant the underwriters an option for a period of 30 days to purchase up to an additional 330,000 shares of common stock at the public offering price, less underwriting discounts and commissions. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering.

BofA Securities and UBS Investment Bank are acting as joint lead book-running managers for the proposed offering. Needham & Company and Stifel are acting as joint book-running managers for the proposed offering.

A registration statement on Form S-1, including a prospectus, relating to the proposed offering of securities has been filed with the U.S. Securities and Exchange Commission but has not yet become effective. Accordingly, these securities may not be sold, nor may offers to buy be accepted, prior to the time the registration statement becomes effective. The proposed offering will be made only by means of a prospectus. Copies of the preliminary prospectus relating to the proposed offering may be obtained by contacting: BofA Securities, NC1-022-02-25, 201 North Tryon Street, Charlotte, North Carolina 28255-0001, Attention: Prospectus Department, or by email at dg.prospectus_requests@bofa.com or UBS Securities LLC, Attention: Prospectus Department, 11 Madison Avenue, New York, New York 10010, by telephone at (833) 481-0260.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

About Ambiq

Headquartered in Austin, Texas, Ambiq’s mission is to enable intelligence (artificial intelligence (AI) and beyond) everywhere by delivering the lowest power semiconductor solutions. Ambiq enables its customers to deliver AI compute at the edge where power consumption challenges are the most severe. Ambiq’s technology innovations, built on the patented and proprietary subthreshold power optimized technology (SPOT®), fundamentally deliver a multi-fold improvement in power consumption over traditional semiconductor designs. Ambiq has powered over 290 million devices to date.

Forward-Looking Statements

The statements contained in this press release that are not historical facts are forward-looking statements. You can identify forward-looking statements because they contain words such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “intends,” “plans,” “estimates,” or “anticipates,” or similar expressions which concern our strategy, plans, projections or intentions. These forward-looking statements may be included throughout this press release, and include, but are not limited to, statements relating to the timing and size of the offering, the expected closing of the offering and the grant to the underwriters of the option to purchase additional shares. By their nature, forward-looking statements are not statements of historical fact or guarantees of future performance and are subject to risks, uncertainties, assumptions or changes in circumstances that are difficult to predict or quantify including those described in the section titled “Risk Factors” in Ambiq’s Quarterly Report on 10-Q for the quarter ended September 30, 2025, as well as in other filings Ambiq may make with the SEC in the future. Ambiq’s expectations, beliefs and projections are expressed in good faith and Ambiq believes there is a reasonable basis for them. However, there can be no assurance that management’s expectations, beliefs and projections will result or be achieved and actual results may vary materially from what is expressed in or indicated by the forward-looking statements. Any forward-looking statement in this press release speaks only as of the date of this release. Ambiq undertakes no obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by any applicable securities laws.

Company Contact:

Charlene Wan 
VP of Corporate Marketing
cwan@ambiq.com 

Investor Relations Contacts:

Teneo
Christina Coronios
christina.coronios@teneo.com

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/42ad9459-6d3f-40de-8c38-119c12e1d316

FAQ

What size is Ambiq's January 21, 2026 public offering (NYSE: AMBQ)?

Ambiq launched an offering of 2,200,000 shares with a 30‑day option for underwriters to buy up to an additional 330,000 shares.

How many Ambiq shares are being sold by the company versus stockholders in the AMBQ offering?

Ambiq is offering 2,157,051 shares and certain stockholders are offering 42,949 shares of the 2,200,000 total.

Who are the lead managers for Ambiq's public offering (AMBQ)?

BofA Securities and UBS Investment Bank are joint lead book‑running managers; Needham and Stifel are joint book‑running managers.

Has Ambiq's registration statement for the AMBQ offering become effective with the SEC?

No; a Form S‑1 registration statement has been filed but has not yet become effective, so the securities may not be sold until effectiveness.

Will Ambiq definitely complete the offering announced on January 21, 2026?

No; the offering is subject to market and other conditions and there is no assurance as to whether or when it will be completed.