10b5-1 Sales: 8,333-Share Rule 144 Notice for Roblox (NYSE: RBLX)

Rhea-AI Filing Summary

Roblox Corporation (RBLX) notice: 8,333 shares of Common stock are listed for sale under Rule 144 related to previously issued Restricted Stock Units.

The excerpt shows multiple 10b5-1 sales by Greg Baszucki and the Greg and Christina Baszucki Living Trust on 05/05/2026 and 04/01/2026, each showing 8,333 shares and dollar proceeds reported in the filing entries.

Insights

Securities Attorney

Rule 144 notice reports proposed resale of restricted shares under prearranged plans.

The filing lists 8,333 shares tied to Restricted Stock Units and identifies multiple 10b5-1 sales by Greg Baszucki and an associated trust on 04/01/2026 and 05/05/2026. This is a disclosure of resale intent under Rule 144.

Timing and methods of resale are governed by Rule 144 conditions and the referenced 10b5-1 plans; cash‑flow treatment is shown as dollar proceeds in the rows. Subsequent filings may report completed transfers.

Equity Capital Markets Specialist

Listed entries show routine insider sales under preplanned trading arrangements, not a new issuance.

The record ties the shares to Restricted Stock Units issued on 05/25/2022 and shows per‑trade proceeds such as $374,711.68 and $482,920.68 for sales on the listed dates. These are resale disclosures, not primary offerings.

Market impact depends on whether the listed shares are actually sold; additional trade reports would show execution. Cash‑flow recipients and exact sale mechanics are those named in the entries.

Key Figures

Shares listed for resale: 8,333 shares Issue date of RSUs: 05/25/2022 Proceeds (05/05/2026 entry): $374,711.68 +1 more

4 metrics

Shares listed for resale 8,333 shares Restricted Stock Units; filing rows

Issue date of RSUs 05/25/2022 Restricted Stock Units issuance date shown

Proceeds (05/05/2026 entry) $374,711.68 10b5-1 sale by Greg Baszucki / trust on <date>05/05/2026</date>

Proceeds (04/01/2026 entry) $482,920.68 10b5-1 sale by Greg Baszucki / trust on <date>04/01/2026</date>

Key Terms

10b5-1, Restricted Stock Units, Rule 144

3 terms

10b5-1 regulatory

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

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.

Restricted Stock Units financial

"Common | 05/25/2022 | Restricted Stock Units | Issuer"

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.

Rule 144 regulatory

"144: Securities To Be Sold"

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.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	392900.95	671595792	06/01/2026	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	05/25/2022	Restricted Stock Units	Issuer			8333	05/25/2022	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	05/05/2026	8333	374711.68
10b5-1 Sales for GREG AND CHRISTINA BASZUCKI LIV TR 3150 South Delaware Street San Mateo CA 94403	Common	05/05/2026	8333	374711.68
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

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Rule 144 filing for RBLX mean?

It notifies the market of a proposed resale of restricted shares under Rule 144. The filing lists 8,333 shares tied to Restricted Stock Units and identifies prior 10b5-1 sales by named holders on 04/01/2026 and 05/05/2026.

Who is listed as selling shares in the RBLX Form 144?

The filing lists sales by Greg Baszucki and the Greg and Christina Baszucki Living Trust. Entries show 10b5-1 sales on 04/01/2026 and 05/05/2026, each row reporting 8,333 shares and associated dollar amounts.

Are these primary offerings or insider resales for RBLX?

These are insider resales, not a primary offering. The document ties the shares to previously issued Restricted Stock Units (date 05/25/2022) and reports 10b5-1 sales by named persons.

What proceeds are shown for the reported sales in the filing?

The rows include dollar proceeds such as $374,711.68 and $482,920.68 associated with the 10b5-1 sales entries. The filing lists these amounts alongside the 8,333 share entries for each sale date.