STOCK TITAN

SEI Investments (SEIC) director exercises options, sells 10,000 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

SEI Investments director Kathryn McCarthy exercised options covering 10,000 shares of Common Stock at an exercise price of $71.1200 per share and on August 3, 2026 sold 10,000 shares in an open-market or private transaction at a weighted average price of $103.5350, within a $103.09–$103.87 range. The options had been granted as compensation for service on the Board of Directors.

Positive

  • None.

Negative

  • None.
Insider MCCARTHY KATHRYN
Role Director
Sold 10,000 shs ($1.04M)
Approx. gross sale proceeds $1.04M
Approx. exercise cost $711K
Approx. pre-tax spread $324K
Type Security Shares Price Value
Exercise Option to Purchase Common Stock F2 5,000 -- --
Exercise Option to Purchase Common Stock F2 5,000 -- --
Exercise Common Stock 5,000 $71.12 $356K
Exercise Common Stock 5,000 $71.12 $356K
Sale Common Stock F1 10,000 $103.535 $1.04M
Holdings After Transaction: Option to Purchase Common Stock — 0 shares (Direct); Common Stock — 77,883 shares (Direct)
Footnotes (2)
  1. F1. Represents the weighted average of a range of sale prices from $103.09 to $103.87. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company, or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price.
  2. F2. Received as compensation for service on the Company's Board of Directors.
Shares sold 10000 shares Common Stock sale on 2026-08-03 by director Kathryn McCarthy
Weighted average sale price $103.5350 per share Common Stock sale over a $103.09–$103.87 price range
Options exercised 10000 shares Options to Purchase Common Stock exercised into Common Stock
Option exercise price $71.1200 per share Exercise price for Options to Purchase Common Stock
Transaction date 2026-08-03 Date for all reported SEI Investments insider transactions
weighted average financial
"Represents the weighted average of a range of sale prices from $103.09 to $103.87."
A weighted average is a way of calculating an overall number when some items matter more than others by giving each item a different level of importance, or weight. Investors use weighted averages to combine figures like prices, returns or earnings so the result reflects the size or significance of each part — like grading a class where a final exam counts more than a quiz, producing a score that better represents true performance.
Option to Purchase Common Stock financial
"security_title listed as Option to Purchase Common Stock for derivative entries."
derivative security financial
"transaction code M described as Exercise or conversion of derivative security."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
open market or private transaction financial
"transaction_code_description states Sale in open market or private transaction."

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

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FAQ

What insider transactions did SEI Investments (SEIC) director Kathryn McCarthy report?

Kathryn McCarthy reported exercising options for 10,000 shares of SEI Investments common stock at $71.1200 per share and, on August 3, 2026, selling 10,000 shares at a weighted average price of $103.5350 within a $103.09–$103.87 range.

How many SEI Investments (SEIC) shares did Kathryn McCarthy sell, and at what price?

She sold 10,000 shares of SEI Investments common stock in a transaction dated August 3, 2026 at a weighted average price of $103.5350 per share, with individual trade prices ranging from $103.09 to $103.87, as disclosed in the Form 4 footnote.

What options did SEI Investments (SEIC) director Kathryn McCarthy exercise?

McCarthy exercised options to purchase 10,000 shares of SEI Investments common stock, with an exercise price of $71.1200 per share and an option expiration date of December 12, 2027. These options are reported as Options to Purchase Common Stock linked to the exercised shares.

How were Kathryn McCarthy's SEI Investments (SEIC) options originally granted?

According to a Form 4 footnote, the options McCarthy exercised, covering 10,000 shares of SEI Investments common stock, were received as compensation for service on the Company’s Board of Directors, indicating they were part of her non-cash director compensation package.

Were Kathryn McCarthy's SEI Investments (SEIC) trades made under a Rule 10b5-1 plan?

The Form 4’s Rule 10b5-1 checkbox is not marked, and no footnote describes a trading plan, so the reported option exercises and the sale of 10,000 shares are not affirmed as executed pursuant to a pre-arranged Rule 10b5-1 trading plan.
SEC Form 4
FORM 4UNITED 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
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
MCCARTHY KATHRYN

(Last)(First)(Middle)
1 FREEDOM VALLEY DRIVE

(Street)
OAKS PENNSYLVANIA 19456

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
SEI INVESTMENTS CO [ SEIC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock08/03/2026M5,000A$71.1282,883D
Common Stock08/03/2026M5,000A$71.1287,883D
Common Stock08/03/2026S10,000D$103.535(1)77,883D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Option to Purchase Common Stock$71.1208/03/2026M5,00012/31/202112/12/2027Common Stock5,000(2)0D
Option to Purchase Common Stock$71.1208/03/2026M5,00012/31/202412/12/2027Common Stock5,000(2)0D
Explanation of Responses:
1. Represents the weighted average of a range of sale prices from $103.09 to $103.87. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company, or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price.
2. Received as compensation for service on the Company's Board of Directors.
/s/ Kathryn McCarthy by Lindsay A. Barci, attorney in fact08/04/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)