Roblox director proposes $353K trust share sale

Morgan Stanley Smith Barney LLC Executive Financial Services is listed as broker and NYSE as the exchange for the proposed sale.

Rhea-AI Filing Summary

Roblox Corp. director Greg Baszucki reported a proposed sale for the account of Greg and Christina Baszucki Living Trust: 8,333 common shares with an aggregate market value of $353,069.21, at an approximate sale date of October 1, 2026. The shares are listed as acquired from the issuer on September 21, 2016, as “Founders Shares.”

Four sales during the preceding three months are listed: Greg Baszucki and the trust each sold 8,333 shares on September 1, 2026, at $337,222.34 per listed sale, and each sold 8,333 shares on August 4, 2026, at $312,190.01 per listed sale.

Key Figures

Proposed sale: 8,333 common shares Aggregate market value: $353,069.21 Greg Baszucki sale: 8,333 shares +5 more

8 metrics

Proposed sale 8,333 common shares For the account of Greg and Christina Baszucki Living Trust

Aggregate market value $353,069.21 Proposed sale

Greg Baszucki sale 8,333 shares September 1, 2026; listed aggregate market value $337,222.34

Trust sale 8,333 shares September 1, 2026; listed aggregate market value $337,222.34

Listed aggregate market value $337,222.34 Each listed sale on September 1, 2026

Greg Baszucki sale 8,333 shares August 4, 2026; listed aggregate market value $312,190.01

Trust sale 8,333 shares August 4, 2026; listed aggregate market value $312,190.01

Listed aggregate market value $312,190.01 Each listed sale on August 4, 2026

Key Terms

Rule 144, 10b5-1 Sales, Founders Shares, aggregate market value

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.

10b5-1 Sales regulatory

"10b5-1 Sales for GREG BASZUCKI"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Founders Shares financial

"Founders Shares | Issuer"

Founders shares are a special block of a company’s stock originally given to the people who started the business; they often carry extra voting power or favorable terms compared with regular shares. For investors, these shares matter because they concentrate control and influence how future funding, ownership dilution, and decision-making will play out—think of founders shares as the steering wheel that can steer a company’s direction even as more passengers (investors) climb aboard.

aggregate market value financial

"Aggregate market value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

How many RBLX shares does Greg Baszucki's trust propose to sell?

The proposed sale is for 8,333 common shares, with an aggregate market value of $353,069.21 and an approximate sale date of October 1, 2026.

Which broker and exchange are listed for the proposed RBLX sale?

The listed broker is Morgan Stanley Smith Barney LLC Executive Financial Services, and the listed exchange is NYSE.

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

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Available on EDGAR 10/01/2026 - 04:22 PM Accepted by SEC EDGAR 10/01/2026 - 04:22 PM 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	0001834990
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 Corporation
SEC File Number	001-39763
Address of Issuer	3150 South Delaware Street San Mateo CALIFORNIA 94403
Phone	8888582569
Name of Person for Whose Account the Securities are To Be Sold	GREG AND CHRISTINA BASZUCKI LIV TR
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	Director

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	8333	353069.21	669992988	10/01/2026	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	09/21/2016	Founders Shares	Issuer			8333	09/21/2016	N/A

* 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
10b5-1 Sales for GREG BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	09/01/2026	8333	337222.34
10b5-1 Sales for GREG AND CHRISTINA BASZUCKI LIV TR 3150 South Delaware Street San Mateo CA 94403	Common	09/01/2026	8333	337222.34
10b5-1 Sales for GREG BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	08/04/2026	8333	312190.01
10b5-1 Sales for GREG AND CHRISTINA BASZUCKI LIV TR 3150 South Delaware Street San Mateo CA 94403	Common	08/04/2026	8333	312190.01

144: Remarks and Signature

Remarks
Date of Notice	10/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/28/2025
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	/s/ Greg Baszucki
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)