As filed with the Securities and Exchange Commission on July 21, 2021.

Registration No. 333-                

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM S-1

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Couchbase, Inc.

(Exact name of registrant as specified in its charter)

Couchbase, Inc.

3250 Olcott Street

Santa Clara, California 95054

(650) 417-7500

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Matthew M. Cain

President and Chief Executive Officer

3250 Olcott Street

Santa Clara, California 95054

(650) 417-7500

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Approximate date of commencement of proposed sale to the public:

As soon as practicable after this registration statement becomes effective.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box.  ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ☒ File No. 333-257205

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ☐

CALCULATION OF REGISTRATION FEE

This Registration Statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) of the Securities Act.

EXPLANATORY NOTE AND INCORPORATION OF

CERTAIN INFORMATION BY REFERENCE

Couchbase, Inc., a Delaware corporation (the “Registrant”), is filing this Registration Statement with the Securities and Exchange Commission (the “Commission”) pursuant to Rule 462(b) under the Securities Act of 1933, as amended. This Registration Statement relates to the public offering of securities contemplated by the Registration Statement on Form S-1, as amended (File No. 333-257205) (the “Prior Registration Statement”), which the Commission declared effective on July 21, 2021.

The Registrant is filing this Registration Statement for the sole purpose of increasing by 1,539,999 shares the number of shares of its common stock, par value $0.00001 per share, to be registered for sale, 200,869 of which may be sold by the Registrant upon exercise of the underwriters’ option to purchase additional shares. The additional shares that are being registered for issuance and sale are in an amount and at a price that together represent no more than 20% of the maximum aggregate offering price set forth in the Calculation of Registration Fee table contained in the Prior Registration Statement. The information set forth in the Prior Registration Statement, and all exhibits to the Prior Registration Statement, are hereby incorporated by reference into this Registration Statement.

The required opinions and consents are listed on the Exhibit Index attached hereto and filed herewith.

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement on Form S-1 to be signed on its behalf by the undersigned, thereunto duly authorized, in Santa Clara, California, on the 21st day of July, 2021.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on Form S-1 has been signed by the following persons in the capacities and on the dates indicated.

Exhibit 5.1

		Wilson Sonsini Goodrich & Rosati Professional Corporation 650 Page Mill Road Palo Alto, California 94304-1050 o: 650.493.9300 f: 650.493.6811

July 21, 2021

Couchbase, Inc.

3250 Olcott Street

Santa Clara, CA 95054

Ladies and Gentlemen:

This opinion is furnished to you in connection with the Registration Statement on Form S-1, as amended (the “Registration Statement”), filed by Couchbase, Inc. (the “Company”) with the Securities and Exchange Commission pursuant to Rule 462(b) of the Securities Act of 1933, as amended (the “Securities Act”), in connection with the registration under the Securities Act of 1,539,999 shares (including up to 200,869 shares issuable upon exercise of an option granted by the Company to the underwriters) of the Company’s common stock, $0.00001 par value per share (the “Shares”), to be issued and sold by the Company. The Registration Statement incorporates by reference the Registration Statement on Form S-1 (Registration No. 333-257205) (the “Prior Registration Statement”), which was declared effective on July 21, 2021, including the prospectus which forms part of the Registration Statement. We understand that the Shares are to be sold to the underwriters for resale to the public as described in the Registration Statement and the Prior Registration Statement and pursuant to an underwriting agreement, substantially in the form filed as an exhibit to the Prior Registration Statement, to be entered into by and among the Company and the underwriters (the “Underwriting Agreement”).

We are acting as counsel for the Company in connection with the sale of the Shares by the Company. In such capacity, we have examined originals or copies, certified or otherwise identified to our satisfaction, of such documents, corporate records, certificates of public officials and other instruments as we have deemed necessary for the purposes of rendering this opinion. In our examination, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals, the conformity with the originals of all documents submitted to us as copies, the authenticity of the originals of such documents and the legal competence of all signatories to such documents.

We express no opinion herein as to the laws of any state or jurisdiction other than the General Corporation Law of the State of Delaware (including the statutory provisions and all applicable judicial decisions interpreting those laws) and the federal laws of the United States of America.

Couchbase, Inc.

July 21, 2021

Page 2

On the basis of the foregoing, we are of the opinion that upon the effectiveness of the Company’s Amended and Restated Certificate of Incorporation, a form of which has been filed as Exhibit 3.2 to the Prior Registration Statement, the Shares to be issued and sold by the Company have been duly authorized and, when such Shares are issued and paid for in accordance with the terms of the Underwriting Agreement, will be validly issued, fully paid and nonassessable.

We consent to the use of this opinion as an exhibit to the Registration Statement, and we consent to the reference of our name under the caption “Legal Matters” in the prospectus forming part of the Prior Registration Statement, which is incorporated by reference into the Registration Statement.

Very truly yours,

WILSON SONSINI GOODRICH & ROSATI

Professional Corporation

/s/  Wilson Sonsini Goodrich & Rosati, P.C.

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-1 of our report dated March 24, 2021, except for the effects of the reverse stock split discussed in Note 2 to the consolidated financial statements, as to which the date is July 12, 2021, relating to the financial statements, which appears in Amendment No. 1 to the Registration Statement on Form S-1 (No. 333-257205) of Couchbase, Inc. We also consent to the reference to us under the heading “Experts” in Amendment No. 1 to the Registration Statement on Form S-1 (No. 333-257205) incorporated by reference in this Registration Statement.

/s/ PricewaterhouseCoopers LLP

San Jose, California

July 21, 2021