GitLab (GTLB) CAO reports Rule 10b5-1 and tax-related stock sales

Rhea-AI Filing Summary

GitLab Inc.'s Chief Accounting Officer Simon Mundy reported several transactions in the company’s Class A common stock. On 12/16/2025, he sold 723 shares at $38 per share under a sale coded "S" and disposed of 2,844 shares coded "F" to cover tax obligations arising from the vesting of restricted stock units, at a weighted average price of $38.20 per share. On 12/18/2025, he sold an additional 2,756 shares at $38.42 per share.

The sales were executed under a trading plan Mundy entered on June 23, 2025 in accordance with Rule 10b5-1. After these transactions, he beneficially owned 47,184 shares of GitLab Class A common stock, which includes shares that have not yet vested.

Insider Trade Summary

Net Seller: 3,479 shares ($133,360)

Net Sell 3 txns

Insider Mundy Simon

Role Chief Accounting Officer

Sold 3,479 shs ($133K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	2,756	$38.42	$106K
Sale	Class A Common Stock	723	$38.00	$27K
Tax Withholding	Class A Common Stock	2,844	$38.20	$109K

Holdings After Transaction: Class A Common Stock — 47,184 shares (Direct)

Footnotes (1)

1. The sales reported on this Form 4 were executed pursuant to a trading plan entered into by the reporting person on June 23, 2025 in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. Represents shares of GitLab Inc.'s Class A Common Stock sold to satisfy the reporting person's tax obligations arising as a result of the vesting of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.60 to $38.52, inclusive. The Reporting Person undertakes to provide to GitLab Inc., any security holder of GitLab Inc., or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote. Includes shares of Class A Common Stock that have not yet vested.

Form 4 Insider Transactions: What Each Field Means →

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^*

Mundy Simon

(Last) (First) (Middle)

C/O GITLAB INC.

(Street)

NOT APPLICABLE DE

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Gitlab Inc. [ GTLB ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2025

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
Class A Common Stock	12/16/2025		S(1)		723	D	$38	52,784	D
Class A Common Stock	12/16/2025		F		2,844(2)	D	$38.2(3)	49,940	D
Class A Common Stock	12/18/2025		S(1)		2,756	D	$38.42	47,184(4)	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 sales reported on this Form 4 were executed pursuant to a trading plan entered into by the reporting person on June 23, 2025 in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

2. Represents shares of GitLab Inc.'s Class A Common Stock sold to satisfy the reporting person's tax obligations arising as a result of the vesting of restricted stock units.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.60 to $38.52, inclusive. The Reporting Person undertakes to provide to GitLab Inc., any security holder of GitLab Inc., or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

4. Includes shares of Class A Common Stock that have not yet vested.

Remarks:

	/s/ Robin Schulman, Attorney-in-Fact for Simon Mundy	12/18/2025
	** 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 insider stock transactions did GitLab (GTLB) report for its Chief Accounting Officer?

GitLab Inc. reported that Chief Accounting Officer Simon Mundy sold 723 shares of Class A common stock at $38 on 12/16/2025, sold 2,844 shares on 12/16/2025 to satisfy tax obligations from restricted stock unit vesting at a weighted average price of $38.20, and sold 2,756 shares at $38.42 on 12/18/2025.

How many GitLab (GTLB) shares does the reporting person still own after these transactions?

After the reported transactions, Chief Accounting Officer Simon Mundy beneficially owned 47,184 shares of GitLab Inc. Class A common stock, including shares that have not yet vested.

Were any GitLab (GTLB) shares sold to cover taxes from equity awards?

Yes. The filing states that 2,844 shares of GitLab Inc.'s Class A common stock were sold to satisfy tax obligations arising from the vesting of restricted stock units.

Were the GitLab (GTLB) insider sales made under a Rule 10b5-1 trading plan?

Yes. The sales were executed pursuant to a Rule 10b5-1 trading plan that the reporting person entered into on June 23, 2025, under the Securities Exchange Act of 1934.

What were the price ranges for the GitLab (GTLB) insider stock sales?

The reported transactions include sales at $38.00 per share and $38.42 per share. The weighted average price of the tax-related sale was $38.20, with individual trades ranging from $37.60 to $38.52.

What is the relationship of the reporting person to GitLab (GTLB)?

The reporting person is an officer of GitLab Inc., serving as the company’s Chief Accounting Officer, as indicated in the form.