Roblox officer plans $680,787 stock sale for taxes

Roblox Corp (RBLX) officer Mark Reinistra has filed a notice under Rule 144 for a planned sale of 17,934 shares of common stock on 08/20/2026, using Charles Schwab & Co., Inc. as broker.

Rhea-AI Filing Summary

Roblox Corp (RBLX) officer Mark Reinistra has filed a notice under Rule 144 for a planned sale of 17,934 shares of common stock on 08/20/2026, using Charles Schwab & Co., Inc. as broker. The filing lists an aggregate market value of approximately $680,787.00 for these shares.

The shares relate to equity compensation, with the filing noting that shares are being sold to cover a tax obligation from settlement of vested Restricted Stock Units. Over the prior three months, Reinistra reported sales totaling 33,225 shares of Roblox common stock on four dates between May and July 2026, for aggregate proceeds listed in the filing.

Key Figures

Planned shares to be sold: 17,934 shares Planned aggregate market value: $680,787.00 Sale on 05/20/2026: 17,275 shares for $782,170.00 +4 more

7 metrics

Planned shares to be sold 17,934 shares Common stock sale by officer Mark Reinistra on 08/20/2026 under Rule 144

Planned aggregate market value $680,787.00 Aggregate market value listed for 17,934 shares of Roblox Corp common stock

Sale on 05/20/2026 17,275 shares for $782,170.00 Securities sold during the past 3 months by Mark Reinistra

Sale on 05/21/2026 5,460 shares for $250,013.00 Securities sold during the past 3 months by Mark Reinistra

Sale on 06/08/2026 5,978 shares for $249,342.00 Securities sold during the past 3 months by Mark Reinistra

Sale on 07/06/2026 4,512 shares for $257,184.00 Securities sold during the past 3 months by Mark Reinistra

Date of Notice 08/20/2026 Filing date for the Rule 144 notice relating to Roblox Corp

Key Terms

Rule 144, Restricted Stock Units, equity compensation, Restricted Stock Lapse

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Shares sold to cover tax obligation from settlement of vested Restricted Stock Units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

equity compensation financial

"17934 | 08/20/2026 | Equity Compensation"

Equity compensation is pay given to employees, executives or contractors in the form of company ownership—such as stock, stock options or restricted shares—rather than just cash. It matters to investors because it can align workers' incentives with shareholders (like paying someone in slices of the same pie they help grow), but it also increases the number of shares outstanding and company expenses, affecting ownership percentages and earnings per share.

Restricted Stock Lapse financial

"Restricted Stock Lapse - See Remarks"

FAQ

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

What insider sale is disclosed for Roblox Corp (RBLX) in this Form 144?

The filing discloses that officer Mark Reinistra plans to sell 17,934 shares of Roblox Corp common stock on 08/20/2026 under Rule 144, with Charles Schwab & Co., Inc. as broker and an aggregate market value of about $680,787.00.

Why are the Roblox (RBLX) shares being sold according to the Form 144?

The remarks state that shares are being sold to cover a tax obligation arising from the settlement of vested Restricted Stock Units, indicating the sale is related to equity compensation rather than an open-market purchase of the shares.

What past 3‑month sales by Mark Reinistra of Roblox (RBLX) stock are reported?

The notice lists four sales: 17,275 shares on 05/20/2026 for $782,170.00, 5,460 shares on 05/21/2026 for $250,013.00, 5,978 shares on 06/08/2026 for $249,342.00, and 4,512 shares on 07/06/2026 for $257,184.00.

On which exchange is the Roblox Corp (RBLX) stock listed in this notice?

The securities information section identifies Roblox Corp common stock as listed on the NYSE. The filing ties this listing to the planned Rule 144 sale of 17,934 shares by officer Mark Reinistra.

What type of securities and account are involved in this Roblox (RBLX) Form 144?

The notice covers common stock of Roblox Corp, to be sold through Charles Schwab & Co., Inc.. The shares are associated with equity compensation and a Restricted Stock Lapse event described in the securities-to-be-sold section.

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

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Available on EDGAR 08/20/2026 - 04:56 PM EDT Accepted by SEC EDGAR 08/20/2026 - 04:55 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001835037
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Roblox Corp
SEC File Number	001-39763
Address of Issuer	3150 SOUTH DELAWARE STREET SAN MATEO CALIFORNIA 94403
Phone	(888) 858-2569
Name of Person for Whose Account the Securities are To Be Sold	Reinstra Mark
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	17934	680787.00	669992988	08/20/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/20/2026	Restricted Stock Lapse - See Remarks	ROBLOX CORP			17934	08/20/2026	Equity Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MARK REINSTRA 3150 SOUTH DELAWARE STREET SAN MATEO CA 94403	ROBLOX CORP	05/20/2026	17275	782170.00
MARK REINSTRA 3150 SOUTH DELAWARE STREET SAN MATEO CA 94403	ROBLOX CORP	05/21/2026	5460	250013.00
MARK REINSTRA 3150 SOUTH DELAWARE STREET SAN MATEO CA 94403	ROBLOX CORP	06/08/2026	5978	249342.00
MARK REINSTRA 3150 SOUTH DELAWARE STREET SAN MATEO CA 94403	ROBLOX CORP	07/06/2026	4512	257184.00

144: Remarks and Signature

Remarks	Shares sold to cover tax obligation from settlement of vested Restricted Stock Units.
Date of Notice	08/20/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	MARK REINSTRA
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)