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SEI Investments (SEIC) executive exits 30,000 shares after exercising stock options

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Form Type
4

Rhea-AI Filing Summary

SEI Investments Executive Vice President and Head of SEI’s Investment Managers business, Philip McCabe, exercised employee stock options to acquire 30,000 shares of common stock at an exercise price of $49.63 per share on August 4–5, 2026.

He then sold 30,000 shares of common stock, including 24,957 shares at a weighted average of $105.038 per share (range $104.80–$105.19) and 5,043 shares at $105.50 per share. He also reports 2,738.9939 shares held indirectly through an Employee Stock Purchase Plan.

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Insider McCabe Philip
Role See Remarks
Sold 30,000 shs ($3.15M)
Approx. gross sale proceeds $3.15M
Approx. exercise cost $1.49M
Approx. pre-tax spread $1.66M
Type Security Shares Price Value
Exercise Option to Purchase Common Stock F2 5,043 -- --
Exercise Common Stock 5,043 $49.63 $250K
Sale Common Stock 5,043 $105.50 $532K
Exercise Option to Purchase Common Stock F2 9,957 -- --
Exercise Option to Purchase Common Stock F2 15,000 -- --
Exercise Common Stock 9,957 $49.63 $494K
Exercise Common Stock 15,000 $49.63 $744K
Sale Common Stock F1 24,957 $105.038 $2.62M
holding Common Stock -- -- --
Holdings After Transaction: Option to Purchase Common Stock — 0 shares (Direct); Common Stock — 54,884.45 shares (Direct); Common Stock — 2,738.9939 shares (Indirect, By Employee Stock Purchase Plan)
Footnotes (2)
  1. F1. Represents the weighted average of a range of sale prices from $104.80 to $105.19. 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 employment compensation.
Shares sold 30,000 shares Aggregate common stock sales reported on August 4–5, 2026
Sale price 4 Aug 2026 (weighted avg) $105.038 per share Weighted average sale price for 24,957 shares on August 4, 2026, within $104.80–$105.19
Sale price 5 Aug 2026 $105.5000 per share Per-share price for sale of 5,043 common shares on August 5, 2026
Options exercised 30,000 shares Total common shares acquired through option exercises at $49.63 per share on August 4–5, 2026
Option exercise price $49.6300 per share Exercise price of options to purchase SEI Investments common stock received as employment compensation
ESPP holdings 2,738.9939 shares Indirect common stock held 'By Employee Stock Purchase Plan' after the reported transactions
Weighted average financial
"Represents the weighted average of a range of sale prices from $104.80 to $105.19"
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.
Employee Stock Purchase Plan financial
"Indirect ownership reported as 'By Employee Stock Purchase Plan'"
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
Option to Purchase Common Stock financial
"Derivative securities described as 'Option to Purchase Common Stock' with a $49.63 exercise price"
Rule 10b5-1 regulatory
"The Rule 10b5-1 plan checkbox is explicitly unchecked for these trades"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

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

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FAQ

What transactions did SEI Investments (SEIC) executive Philip McCabe report?

Philip McCabe exercised options to acquire 30,000 shares of SEI Investments common stock at $49.63 per share on August 4–5, 2026, and on those same dates sold 30,000 shares of common stock at prices around $105 per share, reflecting an exercise-and-sell sequence.

How many SEI Investments (SEIC) shares did Philip McCabe sell and at what prices?

He sold 30,000 shares in total. On August 4, 2026, he sold 24,957 shares at a weighted average of $105.038 per share within a $104.80–$105.19 range, and on August 5 sold 5,043 shares at $105.50 per share.

What stock options did Philip McCabe exercise in SEI Investments (SEIC)?

He exercised options to purchase 30,000 shares of SEI Investments common stock at an exercise price of $49.63 per share. These options, received as employment compensation, had been exercisable since 2017 and 2019 and were scheduled to expire on December 13, 2026.

Does this SEI Investments (SEIC) insider report indicate trades under a Rule 10b5-1 plan?

The Rule 10b5-1 checkbox for these transactions is explicitly unchecked, meaning the report does not characterize them as being made pursuant to a Rule 10b5-1 trading plan. Footnotes address only pricing details and the compensation nature of the options exercised.

What SEI Investments (SEIC) shares does Philip McCabe hold through employee plans?

The report lists 2,738.9939 shares of SEI Investments common stock held indirectly “By Employee Stock Purchase Plan.” This reflects participation in an Employee Stock Purchase Plan as a separate source of share ownership alongside his option-related activity.
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*
McCabe Philip

(Last)(First)(Middle)
ONE 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
See Remarks
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026
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 Stock08/04/2026M9,957A$49.6364,841.45D
Common Stock08/04/2026M15,000A$49.6379,841.45D
Common Stock08/04/2026S24,957D$105.038(1)54,884.45D
Common Stock08/05/2026M5,043A$49.6359,927.45D
Common Stock08/05/2026S5,043D$105.554,884.45D
Common Stock2,738.9939IBy Employee Stock Purchase Plan
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$49.6308/04/2026M9,95712/31/201912/13/2026Common Stock9,957(2)5,043D
Option to Purchase Common Stock$49.6308/04/2026M15,00012/31/201712/13/2026Common Stock15,000(2)0D
Option to Purchase Common Stock$49.6308/05/2026M5,04312/31/201912/13/2026Common Stock5,043(2)0D
Explanation of Responses:
1. Represents the weighted average of a range of sale prices from $104.80 to $105.19. 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 employment compensation.
Remarks:
Title: Executive Vice President, Head of SEI's Investment Managers business
/s/ Philip McCabe by Lindsay A. Barci, attorney in fact08/06/2026
** 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)