80,000 SEI Investments (SEIC) shares set for Rule 144 sale

Rhea-AI Filing Summary

SEI Investments Company plans a Rule 144 stock sale. A shareholder filed to sell 80,000 shares of SEI Investments common stock through Charles Schwab on NASDAQ. The shares have an aggregate market value of $6,988,815 and are part of 122,439,410 shares outstanding.

The shares were acquired on the same date via an employee stock option exercise, using a broker-assisted cashless exercise and payment method. By signing the notice, the seller represents they are not aware of undisclosed material adverse information about SEI Investments’ current or future operations.

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

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	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	80000	6988815.00	122439410	01/29/2026	NASDAQ

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	01/29/2026	Employee Stock Option Exercise	SEI INVESTMENTS CO			80000	01/29/2026	Broker Payment for Cashless Exercise

* 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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

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 SEIC Form 144 filing disclose about planned share sales?

The Form 144 discloses an intent to sell 80,000 SEI Investments common shares. The sale will be executed through Charles Schwab on NASDAQ, with an aggregate market value of $6,988,815, under Rule 144 resale provisions for restricted or control securities.

How many SEI Investments (SEIC) shares are outstanding in this Form 144?

The notice states that SEI Investments has 122,439,410 common shares outstanding. This figure provides context for the planned 80,000-share Rule 144 sale, showing the filing relates to a small portion of the total share base.

How were the SEIC shares in this Form 144 acquired by the seller?

The 80,000 SEI Investments shares were acquired through an employee stock option exercise on 01/29/2026. The transaction used a broker payment structure described as a cashless exercise, with Charles Schwab handling the related payment and sale mechanics.

What is the approximate value of SEIC shares covered by this Form 144?

The filing reports an aggregate market value of $6,988,815 for the 80,000 SEI Investments common shares. This amount reflects the estimated market value at the time of the planned Rule 144 sale on NASDAQ through Charles Schwab.

What representations does the seller make in this SEIC Form 144 filing?

By signing the notice, the seller represents they do not know of any material adverse information about SEI Investments’ current or prospective operations that has not been publicly disclosed, as required for sales relying on Rule 144 under the Exchange Act.

What trading venue and broker are used for the SEIC Form 144 sale?

The Form 144 states that the SEI Investments common shares will be sold on NASDAQ through Charles Schwab & Co., Inc., located in Westlake, Texas. This identifies both the securities exchange and the executing broker for the planned transaction.