[Form 4] Couchbase, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Couchbase director Lynn M. Christensen received and vested restricted stock units. The Form 4 reports an award of 398 restricted stock units that vested in full on 09/15/2025, each unit converting to one share of common stock upon vesting. The reported transaction shows an acquisition code with a $0 price, reflecting issuance of shares upon vesting rather than a cash purchase. Following the transaction, Ms. Christensen beneficially owns 12,218 shares of Couchbase common stock. The filing was signed by a power of attorney on behalf of the reporting person on 09/17/2025.

Positive

• 398 restricted stock units vested in full on 09/15/2025, converting to shares
• Beneficial ownership increased to 12,218 shares, as reported after the transaction
• Transaction disclosed timely with Form 4 filed and signed (power of attorney) on 09/17/2025

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine director equity vesting increased insider ownership by 398 shares to 12,218 shares.

This Form 4 documents a standard non-employee director equity award that vested in full on 09/15/2025. The 398 restricted stock units converted to shares at no cash cost to the director, consistent with typical compensation practices for independent directors. The incremental ownership is modest in absolute terms relative to public company float, so the transaction is unlikely to materially affect valuation metrics or signal a change in company performance.

Corporate Governance Expert

TL;DR: Governance action: director RSUs vested as scheduled; disclosure follows Form 4 requirements.

The filing discloses that one hundred percent of the awarded restricted stock units vested on 09/15/2025 and were reported under acquisition code with a $0 price, indicating issuance upon vesting. The signature via power of attorney is noted and dated 09/17/2025. This appears to be routine compensation administration for a non-employee director with timely SEC disclosure.

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

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

1. Name and Address of Reporting Person^*

Christensen Lynn M

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2025

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	09/15/2025		A		398(1)	A	$0	12,218	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. This represents an award of restricted stock units to the Issuer's non-employee director. Each unit represents a contingent right to receive one share of the Issuer's common stock upon vesting. One hundred percent (100%) of the restricted stock units vested on September 15, 2025.

Remarks:

	/s/ Margaret Chow, by Power of Attorney for Lynn M. Christensen	09/17/2025
	** 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

What did Lynn M. Christensen report in the Form 4 for BASE?

The Form 4 reports that 398 restricted stock units vested in full on 09/15/2025, converting to shares and increasing beneficial ownership to 12,218 shares.

Was there any cash paid for the shares in the reported transaction?

No cash was paid; the transaction is reported with a $0 price, indicating shares were issued upon vesting of RSUs.

What is the nature of the award reported on the Form 4?

The filing states the award was restricted stock units granted to a non-employee director, each representing a contingent right to one share upon vesting.

When did the reporting person sign the Form 4?

The Form 4 was signed by Margaret Chow by power of attorney for Lynn M. Christensen on 09/17/2025.

What acquisition code is used for the transaction?

The transaction is reported with code A, indicating acquisition of securities (issuance upon vesting).