RSI (NYSE: RSI) COO’s spouse sells 20,000 pre-planned shares under 10b5-1 plan

Rhea-AI Filing Summary

Rush Street Interactive Chief Operating Officer Mattias Stetz reported a pre-planned insider sale of Class A common stock connected to his spouse. An entity identified as "By Spouse" sold 20,000 shares in an open-market transaction at a weighted average price of $22.0231 per share under a Rule 10b5-1 trading plan. The filing notes these shares were sold in multiple trades between $22 and $22.06 per share, and Stetz undertakes to provide detailed trade breakdowns upon request. Following the sale, 125,448 shares are held indirectly through his spouse and 257,874 shares are held directly, indicating he retains a substantial equity position in the company.

Insider Trade Summary 10b5-1

Net Seller: 20,000 shares ($440,462)

Net Sell 2 txns

Insider STETZ MATTIAS

Role Chief Operating Officer

Sold 20,000 shs ($440K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	20,000	$22.0231	$440K
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 125,448 shares (Indirect, By Spouse); Class A Common Stock — 257,874 shares (Direct)

Footnotes (1)

1. Shares were sold pursuant to a 10b5-1 plan. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22 to $22.06 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.

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).

X

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^*

STETZ MATTIAS

(Last) (First) (Middle)

C/O RUSH STREET INTERACTIVE, INC.

900 N. MICHIGAN AVENUE, SUITE 950

(Street)

CHICAGO ILLINOIS 60611

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

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

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

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

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	03/24/2026		S(1)		20,000	D	$22.0231(2)	125,448	I	By Spouse
Class A Common Stock								257,874	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

Explanation of Responses:

1. Shares were sold pursuant to a 10b5-1 plan.

2. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $22 to $22.06 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	03/25/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did RSI COO Mattias Stetz report on this Form 4?

Mattias Stetz reported an indirect sale of 20,000 shares of Rush Street Interactive Class A common stock. The shares were sold through his spouse’s holdings, reflecting an open-market transaction rather than a grant, gift, or option exercise.

At what price were the 20,000 Rush Street Interactive shares sold?

The 20,000 shares were sold at a weighted average price of $22.0231 per share. The filing explains individual trades occurred between $22 and $22.06, and detailed price-by-trade information is available from the reporting person upon request.

Was the RSI COO’s 20,000-share sale made under a 10b5-1 plan?

Yes, the filing states the shares were sold pursuant to a Rule 10b5-1 trading plan. Such plans pre-schedule trades, indicating the timing of this disposition was arranged in advance rather than being a purely discretionary market-timing decision.

How many Rush Street Interactive shares does Mattias Stetz hold after this transaction?

After the sale, 125,448 shares are held indirectly through his spouse and 257,874 shares are held directly. This shows Stetz continues to maintain a significant ownership position in Rush Street Interactive despite the 20,000-share disposition.

Is the 20,000-share sale a direct or indirect holding for RSI COO Mattias Stetz?

The 20,000 shares sold are reported as an indirect holding, described as "By Spouse." The Form 4 separates this from Stetz’s directly held shares, which total 257,874 after the reported transactions, clarifying the structure of his overall ownership.