Roblox Founder's Massive Stock Sales Top $300M in Past 3 Months

Rhea-AI Filing Summary

Form 144 Notice filed for Roblox Corporation (RBLX) indicates a proposed sale of 38,523 common shares with an aggregate market value of $3,986,745.27. The sale is to be executed through Morgan Stanley Smith Barney LLC on the NYSE, with an approximate sale date of June 24, 2025.

The securities were originally acquired as Founders Shares from the issuer on April 6, 2004. Notable recent trading activity over the past 3 months includes:

• Significant 10b5-1 planned sales by David Brent Baszucki, The Baszucki Family Foundation, and related trusts
• Total sales volume exceeding 6 million shares across all related entities
• Largest single-day transaction was 1,375,002 shares sold on May 5, 2025, worth approximately $99.3 million

This filing represents continued systematic selling under various 10b5-1 trading plans by company insiders and related entities, indicating a structured approach to portfolio diversification.

Positive

• None.

Negative

• CEO David Baszucki has executed significant insider sales totaling over $300M in the past 3 months through various entities including personal accounts, family trusts, and foundations
• The large volume and frequency of sales (multiple transactions across May-June 2025) could signal reduced confidence from the founder in the company's near-term prospects

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

Relationship to Issuer

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	38523	3986745.27	629990658	06/24/2025	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	04/06/2004	Founders Shares	Issuer			38523	04/06/2004	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
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/18/2025	45496	4661492.86
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/17/2025	454963	45772644.53
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/17/2025	23253	2347190.37
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/17/2025	90992	9154468.54
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/17/2025	82719	8322143.52
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/16/2025	232537	23369805.72
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/16/2025	46508	4674021.44
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/16/2025	42279	4249009.90
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/12/2025	6004	575360.32
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/11/2025	60047	5762866.71
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/11/2025	12009	1152534.95
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/11/2025	10917	1047732.87
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/09/2025	62745	5858864.57
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/06/2025	627453	60263597.89
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/06/2025	68750	6586958.13
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/06/2025	125491	12052758.00
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/06/2025	114081	10956886.83
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/05/2025	687500	63429575.00
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/05/2025	137500	12685915.00
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/05/2025	124998	11532465.48
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/03/2025	68750	6171309.38
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	06/02/2025	687500	60479993.75
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	06/02/2025	137500	12095998.75
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	06/02/2025	124998	10996186.56
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/20/2025	10424	840777.24
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/14/2025	56945	4492294.24
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/13/2025	569450	42811364.89
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/13/2025	11805	902105.05
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	05/13/2025	113889	8562197.80
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	05/13/2025	103534	7783706.83
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/12/2025	118051	8787444.92
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	05/12/2025	23610	1757474.10
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	05/12/2025	21464	1597730.79
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/06/2025	137500	9694245.00
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	05/05/2025	1375002	99261806.88
10b5-1 Sales for 2020 DAVID BASZUCKI GIFT TRUST U/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	05/05/2025	62499	4511821.56
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	05/05/2025	274998	19852188.12
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	05/05/2025	187498	13535536.87
DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	04/08/2025	22916	1194446.08
10b5-1 Sales for DAVID BRENT BASZUCKI 3150 South Delaware Street San Mateo CA 94403	Common	04/07/2025	229167	12026729.99
10b5-1 Sales for 2020 DAVID BASZUCKI GIFT TRUST U/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	04/07/2025	19549	1025935.43
10b5-1 Sales for THE BASZUCKI FAMILY FOUNDATION 3150 South Delaware Street San Mateo CA 94403	Common	04/07/2025	45833	2405325.01
10b5-1 Sales for 2020 JAN BASZUCKI GIFT TRUSTU/A DTD 04/03/2020 3150 South Delaware Street San Mateo CA 94403	Common	04/07/2025	19549	1025935.43

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

How many RBLX shares is David Baszucki selling in the latest Form 144 filing?

According to the Form 144 filed on June 28, 2025, David Baszucki plans to sell 38,523 shares of Roblox (RBLX) common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $3,986,745.27.

What is the total value of RBLX shares sold by David Baszucki in June 2025?

In June 2025, David Baszucki and his associated entities executed multiple sales through 10b5-1 plans, including: direct sales of approximately $44.7 million, 10b5-1 plan sales of about $253.3 million, Baszucki Family Foundation sales of roughly $39.7 million, and Jan Baszucki Gift Trust sales of approximately $36.1 million, totaling over $373.8 million in aggregate sales value.

When did David Baszucki acquire the RBLX shares being sold?

The Form 144 indicates that David Baszucki acquired these shares on April 6, 2004, as Founders Shares directly from the issuer (Roblox Corporation). The nature of payment is listed as 'N/A' since these were founding shares.

How many total RBLX shares are outstanding according to the Form 144?

According to the Form 144 filing, Roblox Corporation (RBLX) has 629,990,658 shares outstanding as of the filing date in June 2025.

What trading plans does David Baszucki have in place for RBLX stock?

The filing shows David Baszucki has multiple 10b5-1 trading plans in place, including plans for himself personally, the Baszucki Family Foundation, and the 2020 Jan Baszucki Gift Trust. These pre-planned sales have been executing regularly throughout May and June 2025.