# EDGAR Filing Document

**Accession Number:** 0001500412
**File Stem:** 0001193125-25-165428
**Filing Date:** 2025-7
**Character Count:** 4100
**Document Hash:** c7e9385769fd4a7742e4bbf5f155e341
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-165428.hdr.sgml**: 20250911

**ACCESSION NUMBER**: 0001193125-25-165428

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250725

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ambiq Micro, Inc.
- **CENTRAL INDEX KEY:** 0001500412
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 271911389
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** 6500 RIVER PLACE BOULEVARD
- **STREET 2:** BUILDING 7, SUITE 200
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78730
- **BUSINESS PHONE:** (512) 879-2850

**MAIL ADDRESS:**
- **STREET 1:** 6500 RIVER PLACE BOULEVARD
- **STREET 2:** BUILDING 7, SUITE 200
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78730

BofA Securities, Inc.

One Bryant Park

New York, New York 10036

UBS Securities LLC

1285 Avenue of the Americas

New York, New York 10019

July 25, 2025

***VIA EDGAR***

U.S. Securities and Exchange Commission

Office of Manufacturing

Division of Corporation Finance

Office of Finance

100 F Street, N.E.

Washington, D.C. 20549

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| | |
|:---|:---|
| Attn: | Jay Ingram |
|  | Sarah Sidwell |
|  | Kevin Stertzel |
|  | Kevin Woody |

---

---

| | |
|:---|:---|
| **Re:** | **Ambiq Micro, Inc.** |
|  | **Registration Statement on Form S-1, as amended (File No. 333-288497)** |
|  | **Request for Acceleration of Effective Date** |
|  | **Requested Date: July 29, 2025** |
|  | **Requested Time: 4:00 p.m., Eastern Time** |

---

Ladies and Gentlemen:

In accordance with Rule 461 under the Securities Act of 1933, as amended (the "<u>Act</u>"), we, as representatives of the several underwriters, hereby join in the request of Ambiq Micro, Inc. (the "<u>Company</u>") for acceleration of the effective date of the above-referenced Registration Statement on Form S-1 (File No. 333-288497) so that it becomes effective as of 4:00 p.m. Eastern time on July 29, 2025, or as soon thereafter as practicable, or at such other time as the Company or its outside counsel, Cooley LLP, request by telephone that such Registration Statement be declared effective.

Pursuant to Rule 460 under the Act, we, as representatives of the several underwriters, wish to advise you that there will be distributed to each underwriter or dealer, who is reasonably anticipated to participate in the distribution of the security, as many copies of the proposed form of preliminary prospectus as appears to be reasonable to secure adequate distribution of the preliminary prospectus.

We, the undersigned, as representatives of the several underwriters, have complied and will comply, and we have been informed by the participating underwriters that they have complied and will comply, with the requirements of Rule 15c2-8 under the Securities Exchange Act of 1934, as amended, in connection with the proposed offering.

------

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| | |
|:---|:---|
| Very truly yours,<br>BofA Securities, Inc.<br> UBS Securities LLC<br>As representatives of the several<br> Underwriters listed in Schedule I of the<br> Underwriting Agreement | Very truly yours,<br>BofA Securities, Inc.<br> UBS Securities LLC<br>As representatives of the several<br> Underwriters listed in Schedule I of the<br> Underwriting Agreement |
| By: | BofA Securities, Inc. |
| By: | /s/ Michael Liloia |
|  | Name: Michael Liloia |
|  | Title: Director |
| By: | UBS Securities LLC |
| By: | /s/ Austin Gobbo |
|  | Name: Austin Gobbo |
|  | Title: Director |
| By: | /s/ Garrett Loeffelman |
|  | Name: Garrett Loeffelman |
|  | Title: Associate Director |

---

cc: Fumihide Esaka, Ambiq Micro, Inc.

Scott Hanson, Ph.D., Ambiq Micro, Inc.

Jeff Winzeler, Ambiq Micro, Inc.

Christina T. Roupas, Cooley LLP

Courtney M.W. Tygesson, Cooley LLP

Michael Platt, Cooley LLP

Alan F. Denenberg, Davis Polk & Wardwell LLP

Emily Roberts, Davis Polk & Wardwell LLP

[*Signature Page to Underwriters' Acceleration Request*]