# EDGAR Filing Document

**Accession Number:** 0001500412
**File Stem:** 0001415889-25-020513
**Filing Date:** 2025-7
**Character Count:** 9556
**Document Hash:** eda7775b81a25e24cd0e075f1c310797
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001415889-25-020513.hdr.sgml**: 20250729

**ACCESSION NUMBER**: 0001415889-25-020513

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250729

**FILED AS OF DATE**: 20250729

**DATE AS OF CHANGE**: 20250729

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kleiner Perkins Caufield & Byers XVI, LLC
- **CENTRAL INDEX KEY:** 0001611731

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42766
- **FILM NUMBER:** 251163573

**BUSINESS ADDRESS:**
- **STREET 1:** 2750 SAND HILL ROAD
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
- **BUSINESS PHONE:** 6502332750

**MAIL ADDRESS:**
- **STREET 1:** 2750 SAND HILL ROAD
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** KPCB XVI Associates, LLC
- **CENTRAL INDEX KEY:** 0001611734

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42766
- **FILM NUMBER:** 251163574

**BUSINESS ADDRESS:**
- **STREET 1:** 2750 SAND HILL ROAD
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
- **BUSINESS PHONE:** 6502332750

**MAIL ADDRESS:**
- **STREET 1:** 2750 SAND HILL ROAD
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
**ISSUER**: 

**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

**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

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>KPCB XVI Associates, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O KLEINER PERKINS CAUFIELD & BYERS<br>2750 SAND HILL ROAD<br><sub>(Street)</sub><br>MENLO PARK, CA 94025<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Ambiq Micro, Inc. [ AMBQ ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-29 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Kleiner Perkins Caufield & Byers XVI, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O KLEINER PERKINS CAUFIELD & BYERS<br>2750 SAND HILL ROAD<br><sub>(Street)</sub><br>MENLO PARK, CA 94025<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Ambiq Micro, Inc. [ AMBQ ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-29 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 424033 | I | By: KPCB Holdings, Inc., as nominee<sup>(1)(2)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Series C Convertible Preferred Stock | <sup>(3)</sup> | <sup>(3)</sup> | Common Stock | 748046 | <sup>(3)</sup> | I | By: KPCB Holdings, Inc., as nominee<sup>(1)(4)</sup> |
| Series D Convertible Preferred Stock | <sup>(3)</sup> | <sup>(3)</sup> | Common Stock | 98958 | <sup>(3)</sup> | I | By: KPCB Holdings, Inc., as nominee<sup>(1)(5)</sup> |
| Series E Convertible Preferred Stock | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 23294 | <sup>(6)</sup> | I | By: KPCB Holdings, Inc., as nominee<sup>(1)(7)</sup> |
| Series F Convertible Preferred Stock | <sup>(8)</sup> | <sup>(8)</sup> | Common Stock | 194618 | <sup>(8)</sup> | I | By: KPCB Holdings, Inc., as nominee<sup>(1)(9)</sup> |

---

### Footnotes:

(1) All shares are held for convenience in the name of "KPCB Holdings, Inc., as nominee" for the accounts of such individuals and entities. The managing member of Kleiner Perkins Caufield & Byers XVI, LLC ("KPCB XVI") and KPCB XVI Founders Fund, LLC ("KPCB XVI Founders") is KPCB XVI Associates, LLC ("KPCB XVI Associates"). L. John Doerr, Beth Seidenberg, Randy Komisar, Theodore E. Schlein, and Wen Hsieh, the managing members of KPCB XVI Associates, exercise shared voting and dispositive control over the shares held by KPCB XVI and KPCB XVI Founders. Such managing members disclaim beneficial ownership of all shares held by KPCB XVI and KPCB XVI Founders except to the extent of their pecuniary interest therein.

(2) Consists of 409,998 shares of Common Stock held by KPCB XVI and 14,035 shares held by KPCB XVI Founders.

(3) The Series C Convertible Preferred Stock and Series D Convertible Preferred Stock are convertible on a one-for-one basis into Common Stock at any time at the Reporting Person's election and will convert automatically upon the closing of the Issuer's initial public offering and has no expiration date.

(4) Consists of 723,286 shares of Common Stock issuable upon the conversion of Series C Convertible Preferred Stock held by KPCB XVI and 24,760 shares held by KPCB XVI Founders.

(5) Consists of 95,683 shares of Common Stock issuable upon the conversion of Series D Convertible Preferred Stock held by KPCB XVI and 3,275 shares held by KPCB XVI Founders,

(6) The Series E Convertible Preferred Stock is convertible into Common Stock at any time at the Reporting Person's election and will convert automatically immediately prior to the closing of the Issuer's initial public offering and has no expiration date. 22,594 outstanding shares of Series E Convertible Preferred Stock will automatically convert into 23,294 shares of Common Stock, immediately prior to the closing of the Issuer's initial public offering.

(7) Consists of 22,523 shares of Common Stock issuable upon the conversion of Series E Convertible Preferred Stock held by KPCB XVI and 771 shares held by KPCB XVI Founders.

(8) The Series F Convertible Preferred Stock is convertible into Common Stock at any time at the Reporting Person's election and will convert automatically immediately prior to the closing of the Issuer's initial public offering and has no expiration date. 171,064 outstanding shares of Series F Convertible Preferred Stock shall automatically convert into 194,618 shares of Common Stock, immediately prior to the closing of the Issuer's initial public offering.

(9) Consists of 188,177 shares of Common Stock issuable upon the conversion of Series F Convertible Preferred stock held by KPCB XVI and 6,441 shares held by KPCB XVI Founders.

**Signature:** /s/ Susan Biglieri, Chief Financial Officer  
**Date:** 2025-07-29

**Signature:** /s/ Susan Biglieri, Chief Financial Officer  
**Date:** 2025-07-29

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**