RBLX Form 144: Baszucki 10b5-1 Sales Reported

The issuer RBLX submitted a Form 144 disclosing Rule 144/10b5-1 sales by reporting persons.

Rhea-AI Filing Summary

The issuer RBLX submitted a Form 144 disclosing Rule 144/10b5-1 sales by reporting persons. The excerpt lists 10b5-1 sales on 02/27/2026 and 04/01/2026 by Greg Baszucki and the Greg and Christina Baszucki Living Trust, each showing 8,333 shares and proceeds per entry of $574,817.01 (02/27/2026) and $482,920.68 (04/01/2026).

Insights

Corporate Governance Analyst

Form 144 lists multiple 10b5-1 dispositions by the Baszucki parties.

The filing records sales executed under 10b5-1 plans on 02/27/2026 and 04/01/2026 by Greg Baszucki and an affiliated trust, each line showing 8,333 shares and stated proceeds per line. This is a routine disclosure of securities dispositions under Section 144/10b5-1 procedures.

Cash‑flow treatment and aggregate totals across holders are not provided in the excerpt; subsequent filings or broker confirmations would show aggregate proceeds and any remaining planned activity.

Key Figures

Shares per listed sale: 8,333 shares Proceeds (02/27/2026): $574,817.01 Proceeds (04/01/2026): $482,920.68 +1 more

4 metrics

Shares per listed sale 8,333 shares per 10b5-1 sale line (02/27/2026 and 04/01/2026)

Proceeds (02/27/2026) $574,817.01 per listed sale line dated 02/27/2026

Proceeds (04/01/2026) $482,920.68 per listed sale line dated 04/01/2026

Form type Form 144 Rule 144/10b5-1 disclosure

Key Terms

10b5-1, Founders Shares, Issuer

3 terms

10b5-1 regulatory

"10b5-1 Sales for GREG BASZUCKI 3150 South Delaware"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Founders Shares market

"Common | 09/21/2016 | Founders Shares"

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.

Issuer regulatory

"Founders Shares | Issuer"

FAQ

What does RBLX's Form 144 say about Greg Baszucki sales?

The Form 144 shows 10b5-1 sales by Greg Baszucki on 02/27/2026 and 04/01/2026. Each listed sale is for 8,333 shares with proceeds shown as $574,817.01 (02/27) and $482,920.68 (04/01).

Did the Greg and Christina Baszucki Living Trust also sell shares in the filing?

Yes. The excerpt lists matching 10b5-1 sales attributed to the Greg and Christina Baszucki Living Trust on the same dates, each showing 8,333 shares and the same per-entry proceeds figures as the individual filings.

Are the sales in the Form 144 described as 10b5-1 plan transactions?

The entries are labeled as 10b5-1 Sales, indicating the transactions were effected pursuant to 10b5-1 plans as reported in the excerpt. The document lists dates, share counts, and proceeds for each line item.

Does the Form 144 excerpt state aggregate totals or who received proceeds?

The excerpt provides per‑line proceeds amounts ($574,817.01 and $482,920.68) but does not state an aggregate total or explicitly name the payee of proceeds beyond the reporting persons shown.

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

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Accepted by SEC EDGAR 05/05/2026 - 04:29 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	396400.81	671595792	05/05/2026	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	04/01/2026	8333	482920.68
10b5-1 Sales for GREG AND CHRISTINA BASZUCKI LIV TR 3150 South Delaware Street San Mateo CA 94403	Common	04/01/2026	8333	482920.68
10b5-1 Sales for GREG BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	02/27/2026	8333	574817.01
10b5-1 Sales for GREG AND CHRISTINA BASZUCKI LIV TR 3150 South Delaware Street San Mateo CA 94403	Common	02/27/2026	8333	574817.01

144: Remarks and Signature

Remarks
Date of Notice	05/05/2026
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)