# EDGAR Filing Document

**Accession Number:** 0001218581
**File Stem:** 0001218581-25-000008
**Filing Date:** 2025-9
**Character Count:** 9051
**Document Hash:** 99b418208dc3c565dcce24b05c5b0619
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001218581-25-000008.hdr.sgml**: 20250924

**ACCESSION NUMBER**: 0001218581-25-000008

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250924

**FILED AS OF DATE**: 20250924

**DATE AS OF CHANGE**: 20250924

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** ANDERSON EDWARD T
- **CENTRAL INDEX KEY:** 0001218581

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40601
- **FILM NUMBER:** 251338408

**MAIL ADDRESS:**
- **STREET 1:** 950 WINTER ST SUITE 4600
- **CITY:** WATHAM
- **STATE:** MA
- **ZIP:** 02451
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Couchbase, Inc.
- **CENTRAL INDEX KEY:** 0001845022
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 263576987
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0131

**BUSINESS ADDRESS:**
- **STREET 1:** 3155 OLSEN DRIVE
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95117
- **BUSINESS PHONE:** 6504177500

**MAIL ADDRESS:**
- **STREET 1:** 3155 OLSEN DRIVE
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95117

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>ANDERSON EDWARD T<br><sub>(Last) (First) (Middle)</sub><br>C/O COUCHBASE, INC.<br>3155 OLSEN DR., SUITE 150<br><sub>(Street)</sub><br>SAN JOSE, CA 95117<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-09-24 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Couchbase, Inc. [ BASE ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-09-24 |  | D<sup>(1)</sup> |  | 97948 | D | <sup>(2)(3)</sup> | 0 | D |  |
| Common Stock | 2025-09-24 |  | D<sup>(1)</sup> |  | 2689172 | D | <sup>(2)</sup> | 0 | I | North Bridge Venture Partners 7, L.P.<sup>(4)(5)</sup> |
| Common Stock | 2025-09-24 |  | D<sup>(1)</sup> |  | 1987084 | D | <sup>(2)</sup> | 0 | I | North Bridge Venture Partners VI, L.P.<sup>(4)(5)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated June 20, 2025, by and among Couchbase, Inc. (the "Issuer"), Cascade Parent Inc. ("Parent") and Cascade Merger Sub Inc. ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with Issuer surviving the Merger and becoming a wholly owned subsidiary of Parent.

(2) At the effective time of the Merger (the "Effective Time"), these shares, including awards of restricted stock units that vested previously but settlement for which had been deferred under our non-employee director restricted stock unit ("RSU") deferral program (as applicable), were automatically converted solely into the right to receive cash in an amount equal to $24.50 (without interest) per share (the "Per Share Price"), subject to the terms and conditions of the Merger Agreement.

(3) At the Effective Time, each outstanding RSU that was unvested was cancelled and converted solely into the contingent right to receive a cash award (without interest) equal to (i) the total number of shares of common stock subject to such unvested RSU award immediately prior to the Effective Time, multiplied by (ii) the Per Share Price, less applicable withholding taxes. Each converted cash award will continue to have, and will be subject to, the same vesting terms and conditions (including acceleration provisions upon a qualifying termination of employment (if any)) as applied to the corresponding unvested RSU award immediately prior to the Effective Time, except for administrative changes that are not adverse to the former holder of the unvested RSU award.

(4) The reportable securities are owned directly by North Bridge Venture Partners 7, L.P. ("NBVP 7"). North Bridge Venture Management 7, L.P. ("NBVM 7") is the sole general partner of NBVP 7, and NBVM GP, LLC ("NBVM GP") is the sole general partner of NBVM 7. The Reporting Person, who is a member of the Issuer's board of directors, and Richard A. D'Amore are the managing members of NBVM GP (collectively, the "Managing Members") and the Managing Members may be deemed to have shared voting and dispositive power over the shares held by NBVP 7. Each of NBVM 7, NBVM GP and the Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

(5) The reportable securities are owned directly by North Bridge Venture Partners VI, L.P. ("NBVP VI"). North Bridge Venture Management VI, L.P. ("NBVM VI") is the sole general partner of NBVP VI, and NBVM GP is the sole general partner of NBVM VI. The Managing Members are the managers of NBVM GP and may be deemed to have shared voting and dispositive power over the shares held by NBVP VI. Each of NBVM VI, NBVM GP and the Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

**Signature:** /s/ Margaret Chow, by Power of Attorney for Edward T. Anderson  
**Date:** 2025-09-24

### 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.**