Key facts
- This page summarizes KPCB XVI Associates, LLC's Form 4 filing for Ambiq Micro, Inc. (AMBQ).
- 8 reported transactions and 4 derivative rows are listed below.
- Accepted by SEC: 31 Jul 2025, 19:37.
KPCB XVI Associates, LLC - 31 Jul 2025 Form 4 Insider Report for Ambiq Micro, Inc. (AMBQ)
- Reporting relationship
- 10%+ Owner
- Issuer ticker
- AMBQ
- Reported as of
- 31 Jul 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 31 Jul 2025, 19:37:59 UTC
- Prior SEC filing
- 29 Jul 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Susan Biglieri, Chief Financial Officer
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
KPCB XVI Associates, LLC filed Form 4 for Ambiq Micro, Inc. (AMBQ) on 31 Jul 2025.
Change
- Previous filing in this sequence was filed on 29 Jul 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (2)
CIK 0001611734
Primary reporting owner
KPCB XVI Associates, LLC
- Relationship
- 10%+ Owner
- Address
- C/O KLEINER PERKINS CAUFIELD & BYERS, 2750 SAND HILL ROAD, MENLO PARK
- Signature
- /s/ Susan Biglieri, Chief Financial Officer
- Signature date
- 31 Jul 2025
CIK 0001611731
Kleiner Perkins Caufield & Byers XVI, LLC
- Relationship
- 10%+ Owner
- Address
- C/O KLEINER PERKINS CAUFIELD & BYERS, 2750 SAND HILL ROAD, MENLO PARK
- Signature
- /s/ Susan Biglieri, Chief Financial Officer
- Signature date
- 31 Jul 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AMBQ
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +748,046
- Change %
- +176%
- Price
- Shares after
- 1,172,079
- Date
- 31 Jul 2025
- Ownership
- By: KPCB Holdings, Inc., as nominee
- Footnotes
- F1, F2, F3
AMBQ
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +98,958
- Change %
- +8.4%
- Price
- Shares after
- 1,271,037
- Date
- 31 Jul 2025
- Ownership
- By KPCB Holdings, Inc., as nominee
- Footnotes
- F1, F2, F4
AMBQ
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +23,294
- Change %
- +1.8%
- Price
- Shares after
- 1,294,331
- Date
- 31 Jul 2025
- Ownership
- By KPCB Holdings, Inc., as nominee
- Footnotes
- F2, F5, F6
AMBQ
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +194,618
- Change %
- +15%
- Price
- Shares after
- 1,488,949
- Date
- 31 Jul 2025
- Ownership
- By KPCB Holdings, Inc., as nominee
- Footnotes
- F2, F7, F8
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AMBQ
transaction
Derivative
Series C Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- $0
- Shares
- -748,046
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 31 Jul 2025
- Ownership
- By: KPCB Holdings, Inc., as nominee
- Underlying class
- Common Stock
- Underlying amount
- 748,046
- Exercise price
- Footnotes
- F1, F2, F3
AMBQ
transaction
Derivative
Series D Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- $0
- Shares
- -98,958
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 31 Jul 2025
- Ownership
- By: KPCB Holdings, Inc., as nominee
- Underlying class
- Common Stock
- Underlying amount
- 98,958
- Exercise price
- Footnotes
- F1, F2, F4
AMBQ
transaction
Derivative
Series E Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- $0
- Shares
- -22,594
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 31 Jul 2025
- Ownership
- By: KPCB Holdings, Inc., as nominee
- Underlying class
- Common Stock
- Underlying amount
- 23,294
- Exercise price
- Footnotes
- F2, F5, F6
AMBQ
transaction
Derivative
Series F Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- $0
- Shares
- -171,064
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 31 Jul 2025
- Ownership
- By: KPCB Holdings, Inc., as nominee
- Underlying class
- Common Stock
- Underlying amount
- 194,618
- Exercise price
- Footnotes
- F2, F7, F8
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 8 footnotes
Footnote F1
The Series C Convertible Preferred Stock and Series D Convertible Preferred Stock automatically converted into Common Stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering of common stock and had no expiration date.
Footnote F2
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.
Footnote F3
Consists of 723,286 shares of Series C Convertible Preferred Stock held by KPCB XVI that automatically converted into 723,286 shares of Common Stock, and 24,760 shares of Series C Convertible Preferred Stock held by KPCB XVI Founders that automatically converted into 24,760 shares of Common Stock.
Footnote F4
Consists of 95,683 shares of Series D Convertible Preferred Stock held by KPCB XVI that automatically converted into 95,683 shares of Common Stock, and 3,275 shares of Series D Convertible Preferred Stock held by KPCB XVI Founders that automatically converted into 3,275 shares of Common Stock.
Footnote F5
The Series E Convertible Preferred Stock automatically converted immediately prior to the closing of the Issuer's initial public offering and had no expiration date. 22,594 outstanding shares of Series E Convertible Preferred Stock automatically converted into 23,294 shares of Common Stock.
Footnote F6
Consists of 21,846 shares of Series E Convertible Preferred Stock held by KPCB XVI that automatically converted into 22,523 shares of Common Stock, and 748 shares of Series E Convertible Preferred Stock held by KPCB XVI Founders that automatically converted into 771 shares of Common Stock.
Footnote F7
The Series F Convertible Preferred Stock automatically converted immediately prior to the closing of the Issuer's initial public offering and had no expiration date. 171,064 outstanding shares of Series F Convertible Preferred Stock automatically converted into 194,618 shares of Common Stock.
Footnote F8
Consists of 165,402 shares of Series F Convertible Preferred Stock held by KPCB XVI that automatically converted into 188,177 shares of Common Stock, and 5,662 shares of Series F Convertible Preferred Stock held by KPCB XVI Founders that automatically converted into 6,441 shares of Common Stock.