SEI Investments (SEIC) shareholder McCabe files to sell 5,043 shares via option exercise

Rhea-AI Filing Summary

SEI Investments Company shareholder Philip McCabe filed to sell company stock under Rule 144. The filing covers 5,043 shares of common stock, with an aggregate market value of $532,036.00, to be sold on or about August 5, 2026 through Charles Schwab & Co., Inc. on NASDAQ. The sale is described as related to an Employee Stock Option Exercise and as a broker payment for a cashless exercise. Over the prior three months, McCabe reported selling 24,957 shares for $2,621,431.00.

Key Figures

Shares proposed to be sold: 5,043 shares Aggregate market value of proposed sale: $532,036.00 CUSIP: 120019182 +3 more

6 metrics

Shares proposed to be sold 5,043 shares Common stock covered by the Rule 144 filing

Aggregate market value of proposed sale $532,036.00 Market value of 5,043 shares of common stock

CUSIP 120019182 Identifier for SEI Investments Company common stock

Planned sale date 08/05/2026 Date associated with proposed sale and option-related transactions

Shares sold in past 3 months 24,957 shares Common stock sold by Philip McCabe during the prior three months

Aggregate value of past 3‑month sales $2,621,431.00 Total consideration received for 24,957 shares sold

Key Terms

Rule 144, cashless exercise, Employee Stock Option Exercise, aggregate market value

4 terms

Rule 144 regulatory

"144: Securities To Be Sold"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

cashless exercise financial

"Broker Payment for Cashless Exercise"

A cashless exercise is a way for an option holder to convert stock options into actual shares without paying the purchase price in cash; instead they immediately give up a portion of the newly issued shares to cover the cost and any withholding taxes. Investors care because this process increases the number of shares available and can slightly dilute existing holdings, while also signaling how insiders or employees are realizing compensation without needing cash — similar to paying for a purchase by handing over part of what you just bought.

Employee Stock Option Exercise financial

"Employee Stock Option Exercise | SEI INVESTMENTS CO"

aggregate market value financial

"5043 | 532036.00 | 120019182"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/05/2026 - 04:26 PM Accepted by SEC EDGAR 08/05/2026 - 04:26 PM Learn about SEC filing dates

FAQ

What stock sale is Philip McCabe planning for SEIC under this Form 144?

Philip McCabe plans to sell 5,043 shares of SEI Investments Company common stock, with an aggregate market value of $532,036.00, expected to be executed around August 5, 2026 through Charles Schwab & Co., Inc. on NASDAQ.

How is the planned SEIC share sale by Philip McCabe related to stock options?

The planned sale of SEI Investments (SEIC) shares is tied to an Employee Stock Option Exercise, with the transaction described as a broker payment for a cashless exercise, meaning shares are sold to cover costs instead of paying cash.

What were Philip McCabe’s recent SEIC stock sales before this Form 144?

In the three months before this filing, Philip McCabe reported selling 24,957 shares of SEI Investments Company stock for total consideration of $2,621,431.00, with a transaction date of August 4, 2026 listed.

Which broker is handling Philip McCabe’s planned SEIC stock sale?

The planned sale of 5,043 SEI Investments (SEIC) shares is to be executed through Charles Schwab & Co., Inc., located at 3000 Schwab Way, Westlake, Texas, with trading indicated on NASDAQ.

What security class is involved in Philip McCabe’s SEIC Form 144 filing?

The filing covers common stock of SEI Investments Company, identified with CUSIP 120019182, with 5,043 shares proposed for sale and prior three‑month sales of 24,957 shares also disclosed.

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	5043	532036.00	120019182	08/05/2026	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	08/05/2026	Employee Stock Option Exercise	SEI INVESTMENTS CO			5043	08/05/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Philip McCabe 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100	SEI INVESTMENTS CO	08/04/2026	24957	2621431.00

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)