Rush Street Interactive COO reports RSU withholding and 10b5-1 sale

Rhea-AI Filing Summary

Mattiass Stetz, Chief Operating Officer of Rush Street Interactive, Inc. (RSI), reported changes in his beneficial ownership on a Form 4. On 09/29/2025 the issuer withheld 6,245 shares to satisfy tax withholding in connection with vesting and net settlement of previously disclosed restricted stock units; those withheld shares were not a sale by the reporting person. On 10/01/2025 the reporting person sold 30,000 shares pursuant to a 10b5-1 plan dated August 16, 2024 at a weighted average price of $20.1019 per share (individual trade prices ranged from $19.495 to $20.37). Following the reported transactions, the reporting person beneficially owned 224,806 shares directly and 205,448 shares indirectly through spouse ownership.

Signature: Form was signed by an attorney-in-fact on behalf of the reporting person on 10/01/2025.

Positive

• Withheld shares were for tax obligations related to RSU vesting and explicitly were not a sale by the reporting person
• Sale executed under a documented 10b5-1 plan (dated August 16, 2024), indicating prearranged trading
• Form 4 discloses both direct and indirect holdings, providing clear beneficial ownership detail

Negative

• Reported insider sale of 30,000 shares on 10/01/2025, which reduces the reporting person's direct stake
• Weighted average sale price $20.1019 may be below or near recent trading levels (prices ranged to $19.495), potentially reflecting realized insider liquidity

Insights

Financial Analyst

TL;DR: Insider sold 30,000 RSI shares under a prearranged 10b5-1 plan; a withholding of 6,245 shares covered taxes on vested RSUs.

The disclosure shows routine insider activity: tax withholding on vested restricted stock units and a planned sale under a 10b5-1 program. The weighted average sale price reported was $20.1019, with transaction prices between $19.495 and $20.37. The direct and indirect holdings after transactions are reported as 224,806 and 205,448 shares respectively. This filing provides transparency on insider liquidity but contains no new operational or earnings information.

Corporate Governance Expert

TL;DR: Filing documents compliant, includes tax-withholding clarification and 10b5-1 disclosure; no unexplained, unscheduled insider trading.

The Form 4 clearly identifies the reporting person as an officer (Chief Operating Officer) and discloses that withheld shares were for tax obligations rather than a voluntary sale. The sale was executed via a 10b5-1 plan, which helps establish prearranged trading intent. The signature by attorney-in-fact is properly included. From a governance perspective, the filing meets disclosure expectations for insider transactions.

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).

1. Name and Address of Reporting Person^*

STETZ MATTIAS

(Last) (First) (Middle)

C/O RUSH STREET INTERACTIVE, INC.

900 N. MICHIGAN AVENUE, SUITE 950

(Street)

CHICAGO IL 60611

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rush Street Interactive, Inc. [ RSI ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/29/2025

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	09/29/2025		F		6,245(1)	D	$21.72	254,806	D
Class A Common Stock	10/01/2025		S(2)		30,000	D	$20.1019(3)	224,806	D
Class A Common Stock								205,448	I	By Spouse

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

Explanation of Responses:

1. Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of the Reporting Person's previously disclosed restricted stock units and does not represent a sale by the Reporting Person.

2. Shares were sold pursuant to a 10b5-1 Plan dated August 16, 2024.

3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $19.495 to $20.37 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

	/s/ Kyle Sauers as Attorney-in-fact	10/01/2025
	** 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 transactions did RSI COO Mattias Stetz report on Form 4?

He reported 6,245 shares withheld for tax withholdingsale of 30,000 shares

Were the 6,245 withheld shares sold by the reporting person?

No. The Form 4 states the 6,245 shares were withheld by the issuer to satisfy income tax withholding

Under what plan were the 30,000 shares sold?

The shares were sold pursuant to a 10b5-1 trading plan dated August 16, 2024.

What price did the 30,000 shares sell for?

The reported weighted average sale price was $20.1019 per share; individual trade prices ranged from $19.495 to $20.37 per share.

How many RSI shares does the reporting person beneficially own after these transactions?

Following the reported transactions the reporting person beneficially owned 224,806 shares directly and 205,448 shares indirectly (by spouse).