SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* GPI Capital Gemini HoldCo LP (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS FLOOR 32, SUITE C (Street) NEW YORK NY 10105 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 07/21/2021	3. Issuer Name and Ticker or Trading Symbol Couchbase, Inc. [ BASE ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series G Preferred Stock	(1)	(1)	Common Stock	4,096,192	0.00	D(2)

Explanation of Responses:

1. Immediately prior to the completion of the Issuer's initial public offering, each share of Series G Preferred Stock is convertible into shares of the Issuer's Common Stock, par value $0.00001 per share, on an expected 1.06673317089756-for-one basis and has no expiration date.

2. GPI Capital LLC is the sole member of GPI GP Limited, which is the general partner of GPI GP LP, which is the general partner of GPI Capital Gemini HoldCo LP, or GPI. Aleksander J. Migon is a member of the Issuer's board of directors and Messrs. Migon, William T. Royan and Khai Ha are Managing Partners and members of the Investment Committee of GPI Capital, LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by GPI. Messrs. Migon, Royan and Ha disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein. The address for GPI is 1345 Avenue of the Americas, 32nd Floor, New York, New York 10105.

Remarks:

	GPI Capital Gemini HoldCo LP, By: Mateo Goldman, as Attorney in Fact	07/21/2021
	** Signature of Reporting Person	Date
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 5 (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).
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