RSI Form 144: Einar Roosileht Plans Sale of 70,000 Shares for $1.5M

Rhea-AI Filing Summary

Rush Street Interactive insider sale notice: This Form 144 shows Einar Roosileht plans to sell 70,000 common shares of Rush Street Interactive, Inc. (RSI) on the NYSE through Merrill Lynch on approximately 09/02/2025 for an aggregate market value of $1,500,338.77. The shares were created by conversion of units on 08/29/2025 and will be paid in cash. The filing reports 88,607,034 shares outstanding, and discloses three prior sales by the same person in the past three months totaling 210,000 shares with gross proceeds of $3,434,773.26.

Positive

• Compliance disclosure: Form 144 filed and includes broker details (Merrill Lynch) and planned sale date
• Transaction specifics provided: acquisition date (08/29/2025), nature of acquisition (units converted to shares), and payment method (cash)
• Prior sales disclosed: three sales in the past three months totaling 210,000 shares with gross proceeds of $3,434,773.26

Negative

• None.

Insights

Securities Analyst

TL;DR Insider Einar Roosileht files to sell 70,000 RSI shares via broker; prior monthly sales are disclosed.

The filing is a routine Form 144 notice indicating planned sale of common shares created by unit conversion on 08/29/2025 and to be sold on or about 09/02/2025 through Merrill Lynch. The notice includes prior sales in June, July and August 2025 totaling 210,000 shares. For investors this is a disclosure of insider liquidity rather than an operational update; the amount represents a small fraction of the 88,607,034 shares outstanding.

Corporate Governance Expert

TL;DR The filer complied with Rule 144 disclosure requirements and documented recent sales, showing regulatory transparency.

The form includes acquisition details (units converted to shares), broker information, and past three months of sales with gross proceeds, meeting the procedural elements required for Rule 144 notices. The signer affirms no undisclosed material adverse information and the filing warns about legal penalties for misstatements, consistent with standard attestation language.

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

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	MERRILL LYNCH, PIERCE, FENNER & SMITH INC. 75 ROCKEFELLER PLAZA 6TH FLOOR NEW YORK NY 10019	70000	1500338.77	88607034	09/02/2025	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	08/29/2025	UNITS CONVERTED TO SHARES	EINAR ROOSILEHT			70000	09/02/2025	CASH

* 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
EINAR ROOSILEHT 900 N. MICHIGAN AVE STE 950 CHICAGO IL 60611	RUSH STREET INTERACTIVE INC.	08/01/2025	70000	1323783.58
EINAR ROOSILEHT 900 N. MICHIGAN AVE STE 950 CHICAGO IL 60611	RUSH STREET INTERACTIVE INC.	07/01/2025	70000	1030960.52
EINAR ROOSILEHT 900 N. MICHIGAN AVE STE 950 CHICAGO IL 60611	RUSH STREET INTERACTIVE INC.	06/02/2025	70000	870029.16

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

What does the Form 144 for Rush Street Interactive (RSI) disclose?

The filing shows Einar Roosileht intends to sell 70,000 common shares on or about 09/02/2025 via Merrill Lynch with aggregate market value of $1,500,338.77.

How were the shares acquired that are being sold under Form 144?

The shares were acquired by units converted to shares on 08/29/2025, with the seller listed as Einar Roosileht.

Has the filer sold RSI shares recently?

Yes. The filing discloses three prior sales in the past three months: 06/02/2025 (70,000 shares, $870,029.16), 07/01/2025 (70,000 shares, $1,030,960.52), and 08/01/2025 (70,000 shares, $1,323,783.58).

What exchange will the RSI shares be sold on?

The planned sale is listed for the NYSE.

How many shares outstanding does RSI report in this filing?

The filing lists 88,607,034 shares outstanding.