Sean Denham - 18 Mar 2026 Form 4 Insider Report for SEI INVESTMENTS CO (SEIC)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
19 Mar 2026, 10:06:32 UTC
Prior SEC filing
16 Dec 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Sean Denham, by Diane Gallagher, attorney in fact

Key filing fact

Sean Denham filed Form 4 for SEI INVESTMENTS CO (SEIC) on 19 Mar 2026.

Key facts

  • This page summarizes Sean Denham's Form 4 filing for SEI INVESTMENTS CO (SEIC).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 19 Mar 2026, 10:06.

Change

  • Previous filing in this sequence was filed on 16 Dec 2025.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002010484 Primary reporting owner

Denham Sean

Relationship
Executive VP, CFO, COO
Address
1 FREEDOM VALLEY DRIVE, OAKS
Signature
/s/ Sean Denham, by Diane Gallagher, attorney in fact
Signature date
19 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SEIC transaction

Common Stock

Tax liability

Transaction value
Shares
-7,673
Change %
-12%
Price
$78.77*
Shares after
57,758
Date
18 Mar 2026
Ownership
Direct
SEIC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
607
Date
18 Mar 2026
Ownership
By Employee Stock Purchase Plan
Footnotes
F1
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Reflects the acquisition through the Employee Stock Purchase Plan of 284.5759 shares of common stock since the Issuer's most recent Form 4 filing.

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