Rush Street Interactive (RSI) COO details PSU vesting and tax shares

Rhea-AI Filing Summary

Rush Street Interactive, Inc. Chief Operating Officer Mattias Stetz reported equity award activity in company stock. On January 6, 2026, he acquired 296,692 shares of Class A common stock at $19.77 per share upon the vesting and settlement of performance stock units that were originally granted on March 15, 2023 and were subject to performance criteria. On the same date, 131,874 shares were withheld at $19.77 per share to cover withholding taxes due upon that settlement. Following these transactions, he beneficially owned 309,624 Class A shares directly, and an additional 165,448 shares indirectly through his spouse.

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

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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^*

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)
01/06/2026

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	01/06/2026		A		296,692(1)	A	$19.77	441,498	D
Class A Common Stock	01/06/2026		F		131,874(2)	D	$19.77	309,624	D
Class A Common Stock								165,448	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 the aggregate number of shares acquired by the Reporting Person upon the vesting and settlement of Performance Stock Units ("PSUs") originally granted to the Reporting Person on March 15, 2023, the vesting of which was subject to the achievement of certain performance criteria.

2. Represents shares withheld to cover withholding taxes due upon settlement of the PSUs originally granted to the Reporting Person on March 15, 2023.

Remarks:

	/s/ Kyle Sauers as Attorney-in-fact	01/08/2026
	** 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 insider transaction did RSI Chief Operating Officer Mattias Stetz report?

Mattias Stetz, Chief Operating Officer of Rush Street Interactive, Inc. (RSI), reported the vesting and settlement of performance stock units into Class A common stock on January 6, 2026, along with shares withheld to pay related taxes.

How many Rush Street Interactive (RSI) shares did the COO acquire and at what price?

He acquired 296,692 shares of Class A common stock at a price of $19.77 per share upon the vesting and settlement of his performance stock units.

How many RSI shares were withheld for taxes in this Form 4 filing?

The filing states that 131,874 shares of Class A common stock were withheld at $19.77 per share to cover withholding taxes due upon settlement of the performance stock units.

How many Rush Street Interactive (RSI) shares does the COO own after these transactions?

After the reported transactions, he beneficially owned 309,624 shares of Class A common stock directly, and 165,448 shares indirectly, held by his spouse.

What are the performance stock units (PSUs) referenced in the RSI Form 4?

The PSUs are described as performance stock units originally granted on March 15, 2023, with vesting that was subject to the achievement of certain performance criteria, and they settled into shares of Class A common stock when those criteria were met.

Does the RSI COO have indirect ownership of shares through a related person?

Yes. The Form 4 reports 165,448 Class A shares held indirectly, noted as owned "By Spouse", in addition to his directly held shares.