[144] SEI INVESTMENTS CO SEC Filing

Rhea-AI Filing Summary

SEI Investments Co. (SEIC) filed a Form 144 to report a proposed sale of 7,500 shares of common stock, with an aggregate market value of $647,473.00, through Charles Schwab & Co., Inc. on or about 09/22/2025. The filing states the shares were acquired the same day via a stock option exercise and that payment was made as a broker payment for a cashless exercise. The notice indicates no securities of the issuer were sold by the reporting person in the prior three months and includes the standard attestation that the seller is not aware of undisclosed material adverse information.

Positive

• Filing complies with Rule 144 disclosure requirements, specifying acquisition method, payment nature, broker, and proposed sale date

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider sale filing for a small block of stock following an option exercise; unlikely to move valuation.

The Form 144 documents a proposed sale of 7,500 shares valued at $647,473 executed via broker-assisted cashless exercise on the acquisition date. Relative to the issuer's reported shares outstanding of 123,625,060, this represents a de minimis dilution or supply impact. The filing provides clear provenance of the shares and the method of payment, fulfilling disclosure requirements under Rule 144. No prior sales in the last three months are reported, which reduces immediate pattern concerns.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure; procedural attestation included, no governance red flags disclosed.

The notice includes the required attestation regarding material non-public information and identifies Charles Schwab as the broker. The transaction arises from a stock option exercise with a broker cashless arrangement, which is a common liquidity mechanism for insiders. There are no statements of undisclosed adverse information and no other aggregated related-party sales identified, indicating this is a routine, compliant insider sale filing rather than a governance concern.

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	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	7500	647473.00	123625060	09/22/2025	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	09/22/2025	Stock Option Exercise	SEI INVESTMENTS CO			7500	09/22/2025	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 disclose?

It discloses a proposed sale of 7,500 common shares valued at $647,473.00, acquired and to be sold on 09/22/2025 via a broker cashless exercise.

Who is acting as broker for the proposed SEIC sale?

Charles Schwab & Co., Inc. (address listed as 3000 Schwab Way, Westlake, TX) is named as the broker.

How were the SEIC shares acquired?

The shares were acquired on 09/22/2025 through a stock option exercise, with payment via a broker cashless exercise.

Does the filing report any sales by the person in the prior three months?

No. The Form 144 states "Nothing to Report" for securities sold during the past three months.

Is there any representation about material non-public information in the filing?

Yes. The signer represents they do not know of any material adverse information about the issuer that has not been publicly disclosed.