Roblox (NYSE: RBLX) director swaps stock for 1,125 phantom units

Rhea-AI Filing Summary

Roblox Corp director Gina Mastantuono reported an internal equity reclassification tied to vested Restricted Stock Units. When 1,125 RSUs vested on February 20, 2026, she deferred receiving 1,125 shares of Class A Common Stock and instead received 1,125 shares of phantom stock under Roblox’s deferred compensation plan.

As a result of this exchange, her phantom stock holdings increased to 3,375 units and her Class A Common Stock holdings became 15,498 shares, all held directly. Each RSU and each phantom stock unit represents a right to receive one share of Roblox Class A Common Stock, with the phantom stock payable in a lump sum after separation from service.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Mastantuono Gina

Role Director

Type	Security	Shares	Price	Value
Other	Phantom Stock	1,125	$0.00	--
Other	Class A Common Stock	1,125	$0.00	--

Holdings After Transaction: Phantom Stock — 3,375 shares (Direct); Class A Common Stock — 15,498 shares (Direct)

Footnotes (1)

1. In connection with the vesting on February 20, 2026, of Restricted Stock Units ("RSUs") previously granted to the Reporting Person, the Reporting Person's receipt of 1,125 shares of Class A Common Stock was deferred, resulting in the Reporting Person's receipt instead of 1,125 shares of phantom stock pursuant to the Issuer's deferred compensation plan. The Reporting Person is therefore reporting the disposition of 1,125 shares of Class A Common Stock in exchange for an equal number of shares of phantom stock. A portion of these securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. Each share of phantom stock represents a right to receive one share of Class A common stock. The phantom stock becomes payable in one lump sum payment upon separation from service.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mastantuono Gina

(Last) (First) (Middle)

C/O ROBLOX CORPORATION

3150 S. DELAWARE ST.

(Street)

SAN MATEO CA 94403

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Roblox Corp [ RBLX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	02/20/2026		J(1)		1,125	D	$0(1)	15,498(1)(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Phantom Stock	(3)	02/20/2026		J(1)		1,125		(4)	(4)	Class A Common Stock	1,125	$0	3,375	D

Explanation of Responses:

1. In connection with the vesting on February 20, 2026, of Restricted Stock Units ("RSUs") previously granted to the Reporting Person, the Reporting Person's receipt of 1,125 shares of Class A Common Stock was deferred, resulting in the Reporting Person's receipt instead of 1,125 shares of phantom stock pursuant to the Issuer's deferred compensation plan. The Reporting Person is therefore reporting the disposition of 1,125 shares of Class A Common Stock in exchange for an equal number of shares of phantom stock.

2. A portion of these securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

3. Each share of phantom stock represents a right to receive one share of Class A common stock.

4. The phantom stock becomes payable in one lump sum payment upon separation from service.

Remarks:

	/s/ Adele Freedman Attorney-in-Fact for Gina Mastantuono	02/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Roblox (RBLX) director Gina Mastantuono report?

Gina Mastantuono reported an internal equity reclassification. Upon vesting of 1,125 Restricted Stock Units on February 20, 2026, she deferred receiving Class A shares and instead received 1,125 phantom stock units under Roblox’s deferred compensation plan.

How many Roblox (RBLX) shares and phantom stock units are held after the Form 4?

After the reported transactions, Gina Mastantuono directly holds 15,498 shares of Roblox Class A Common Stock and 3,375 phantom stock units. Each phantom stock unit represents a right to receive one share of Class A Common Stock in the future.

What are phantom stock units in the Roblox (RBLX) deferred compensation plan?

Each phantom stock unit represents a right to receive one Roblox Class A Common share. Under the deferred compensation plan, these units become payable in a single lump sum payment when the reporting person separates from service with the company.

How are Roblox (RBLX) Restricted Stock Units (RSUs) described in this Form 4?

The filing states that each Restricted Stock Unit represents a contingent right to receive one share of Roblox Class A Common Stock. When RSUs vest, the holder typically becomes entitled to receive the corresponding number of Class A shares, subject to any deferral elections.

Did the Roblox (RBLX) Form 4 show an open-market buy or sell by the director?

No open-market buy or sell is reported. The Form 4 reflects an “other” type of transaction, where 1,125 vested RSUs led to an exchange of 1,125 Class A Common Stock shares for an equal number of phantom stock units under a deferred compensation arrangement.