[Form 4] Couchbase, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Couchbase (BASE) SVP & Chief Revenue Officer Huw Owen reported a significant insider transaction on Form 4. On June 20, 2025, Owen sold 10,716 shares of common stock at a price of $24.44 per share, resulting in a transaction value of approximately $261,899.

Following the transaction, Owen continues to hold 393,693 shares directly. The sale was executed under a pre-established Rule 10b5-1 trading plan that was adopted on September 30, 2024, demonstrating planned and compliant insider trading practices.

Key points:

• Transaction was part of a pre-planned trading arrangement
• Sale represents approximately 2.65% of Owen's holdings
• No derivative securities were involved in this transaction
• Filing was signed via Power of Attorney by Margaret Chow

Positive

• The insider (SVP & Chief Revenue Officer) retains a significant position of 393,693 shares after the sale, showing continued substantial alignment with shareholders

Negative

• SVP & Chief Revenue Officer Huw Owen sold 10,716 shares at $24.44 per share, totaling approximately $261,899
• The sale was executed through a pre-planned 10b5-1 trading plan established in September 2024, indicating a predetermined decision to sell

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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^*

Owen Huw

(Last) (First) (Middle)

C/O COUCHBASE, INC.

3155 OLSEN DR., SUITE 150

(Street)

SAN JOSE CA 95117

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Couchbase, Inc. [ BASE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & Chief Revenue Officer

3. Date of Earliest Transaction (Month/Day/Year)
06/20/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/20/2025		S		10,716(1)	D	$24.44	393,693	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale reported on this Form 4 represents shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on 9/30/2024.

Remarks:

	/s/ Margaret Chow, by Power of Attorney for Huw Owen	06/24/2025
	** 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 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.

FAQ

How many shares of BASE stock did SVP & Chief Revenue Officer Huw Owen sell on June 20, 2025?

Huw Owen sold 10,716 shares of Couchbase (BASE) common stock on June 20, 2025 at a price of $24.44 per share.

How many shares of BASE does Huw Owen own after the June 20, 2025 transaction?

Following the reported transaction, Huw Owen directly owns 393,693 shares of Couchbase (BASE) common stock.

Was BASE insider Huw Owen's stock sale part of a 10b5-1 trading plan?

Yes, the sale was executed pursuant to a Rule 10b5-1 trading plan that was adopted by Huw Owen on September 30, 2024.

What is Huw Owen's position at BASE?

Huw Owen serves as Senior Vice President (SVP) & Chief Revenue Officer at Couchbase, Inc. (BASE).

What was the total value of BASE shares sold by Huw Owen in the June 20, 2025 transaction?

The total value of the transaction was approximately $261,899.04 (10,716 shares × $24.44 per share).