Gitlab CAO has 4,656 shares withheld for tax

Gitlab’s chief accounting officer disposed of shares to cover RSU-related taxes and continues to hold over 100,000 Gitlab Class A shares.

Rhea-AI Filing Summary

Gitlab Inc. (GTLB) reported that Chief Accounting Officer Simon Mundy disposed of 4,656 shares of Class A Common Stock on September 16, 2026 to satisfy tax obligations arising from the vesting of a restricted stock unit award. The shares were transacted at a weighted average price of $48.77 per share, within a range of $48.06 to $49.21. After this tax-withholding disposition, Mundy directly holds 100,676 shares of Class A Common Stock, including shares that have not yet vested, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Tax Withholding: 4,656 shares

Tax Withholding 1 txn

Insider Mundy Simon

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1, F2, F3	4,656	$48.77	$227K

Holdings After Transaction: Class A Common Stock — 100,676 shares (Direct)

Footnotes (3)

1. F1. Represents shares of GitLab Inc.'s (the "Company") Class A Common Stock sold to satisfy the reporting person's tax obligations arising as a result of the vesting of a portion of a restricted stock unit award.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.06 to $49.21, 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.
3. F3. Includes shares of Class A Common Stock that have not yet vested.

Key Figures

Shares disposed for tax obligations: 4,656 shares Weighted average price per share: $48.77 per share Post-transaction holdings: 100,676 shares +2 more

5 metrics

Shares disposed for tax obligations 4,656 shares Class A Common Stock disposed of on September 16, 2026 to satisfy RSU-related tax obligations

Weighted average price per share $48.77 per share Price for the 4,656-share tax-withholding disposition, within a $48.06–$49.21 range

Post-transaction holdings 100,676 shares Direct holdings of Gitlab Class A Common Stock by Simon Mundy after the transaction, including unvested shares

Price range of individual trades $48.06–$49.21 per share Range of prices for multiple transactions that make up the reported weighted average price

Transaction date September 16, 2026 Date of the tax-withholding disposition reported on Form 4

Key Terms

restricted stock unit, weighted average price, payment of tax liability by delivering or withholding securities, Class A Common Stock

4 terms

restricted stock unit financial

"tax obligations arising as a result of the vesting of a portion of a restricted stock unit award"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

payment of tax liability by delivering or withholding securities financial

"transaction code description indicates payment of tax liability by delivering or withholding securities"

Class A Common Stock financial

"Represents shares of GitLab Inc.'s Class A Common Stock sold to satisfy"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Gitlab (GTLB) disclose for Simon Mundy?

Gitlab disclosed that Chief Accounting Officer Simon Mundy disposed of 4,656 shares of Class A Common Stock on September 16, 2026 to satisfy tax obligations from the vesting of a restricted stock unit award.

Was the Gitlab (GTLB) insider transaction by Simon Mundy a routine tax-withholding event?

Yes. The filing states the 4,656 shares represented Class A Common Stock disposed of to satisfy tax obligations arising from the vesting of part of a restricted stock unit award.

What price did Simon Mundy’s Gitlab (GTLB) shares transact at in this Form 4?

The filing reports a weighted average price of $48.77 per share for the 4,656 shares, with multiple trades executed in a range from $48.06 to $49.21 per share.

How many Gitlab (GTLB) shares does Simon Mundy hold after this transaction?

After the reported disposition, Simon Mundy directly holds 100,676 shares of Gitlab Class A Common Stock, and the disclosure notes this amount includes shares that have not yet vested.

Was Simon Mundy’s Gitlab (GTLB) Form 4 transaction under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not checked, and the footnotes do not indicate that the transaction was made under a Rule 10b5-1 trading plan.

What transaction code is used in Simon Mundy’s Gitlab (GTLB) Form 4 filing?

The transaction uses code F, which the filing describes as payment of tax liability by delivering or withholding securities in connection with equity awards.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/18/2026 - 05:43 PM Accepted by SEC EDGAR 09/18/2026 - 05:42 PM Learn about SEC filing dates

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

X

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

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 DELAWARE

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	09/16/2026		F		4,656(1)	D	$48.77(2)	100,676(3)	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. Represents shares of GitLab Inc.'s (the "Company") Class A Common Stock sold to satisfy the reporting person's tax obligations arising as a result of the vesting of a portion of a restricted stock unit award.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.06 to $49.21, 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.

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

Remarks:

	/s/ Thomas J. Lloyd, Attorney-in-Fact for Simon Mundy	09/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)