Roblox director Greg Baszucki proposes $353K sale

The past-three-month entries list 8,333-share sales for Greg Baszucki and the Greg and Christina Baszucki Living Trust on September 1 and August 4, 2026.

Rhea-AI Filing Summary

Roblox Corporation director Greg Baszucki reported a proposed sale of 8,333 common shares, with an estimated aggregate market value of $353,069.21, through Morgan Stanley Smith Barney LLC. The notice lists October 1, 2026, as the approximate sale date and NYSE as the exchange. The shares are identified as acquired on January 29, 2008, through a private acquisition from the issuer or an affiliate.

Key Figures

Proposed common shares: 8,333 shares Estimated aggregate market value: $353,069.21 Shares outstanding: 669,992,988 shares +4 more

7 metrics

Proposed common shares 8,333 shares Proposed sale; approximate date October 1, 2026

Estimated aggregate market value $353,069.21 Proposed sale

Shares outstanding 669,992,988 shares As of October 1, 2026

Past sales shares 8,333 shares per entry Two entries dated September 1, 2026

Reported sales value $337,222.34 per entry Two entries dated September 1, 2026

Past sales shares 8,333 shares per entry Two entries dated August 4, 2026

Reported sales value $312,190.01 per entry Two entries dated August 4, 2026

Key Terms

Rule 144, 10b5-1 Sales, Private Acquisition from Issuer or an Affiliate

3 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.

Private Acquisition from Issuer or an Affiliate financial

"Private Acquisition from Issuer or an Affiliate"

FAQ

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

How many RBLX shares is Greg Baszucki proposing to sell?

Greg Baszucki's notice lists a proposed sale of 8,333 common shares with an estimated aggregate market value of $353,069.21. Morgan Stanley Smith Barney LLC is listed as the broker, and October 1, 2026, is listed as the approximate sale date.

What prior RBLX sales are listed for Greg Baszucki?

The past-three-month table lists 8,333 shares for Greg Baszucki and 8,333 shares for the Greg and Christina Baszucki Living Trust on September 1, 2026, each with $337,222.34 in reported sales value. It lists the same share amounts for both on August 4, 2026, each with $312,190.01 in reported sales value.

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 Baszucki
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	01/29/2008	Private Acquisition from Issuer or an Affiliate	Issuer			8333	01/29/2008	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)