Insider trade

Chair exercised or converted 30K SEIC derivative securities

Traded Dec 3, 2025 · Filed Dec 5, 2025

SEI Investments CompanySEIC

30K
Derivative units

Why it stands out

Derivative exercise or conversion — not an open-market buy.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Dec 3, 2025
Reporting period: Not applicable
Filed with the SEC: Dec 5, 2025

ChairOption exercise

Context

Classification

option exercise

Code M — exercise or conversion of a derivative security

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

Source receipt

Record ID: 0000929638-25-004512

Filed / recorded

Dec 5, 2025, 10:57 PM UTC

Added to OQRO

Oct 6, 2026, 9:10 PM UTC

Parser

form4-xml-v2

Data quality

Verified: identifiers matched exactly

Issuer

SEI INVESTMENTS CO

Issuer CIK

350894

Ticker

SEIC

Reporting person

Alfred P Jr West

Relationship

Director, Officer

Officer title

Executive Chairman

Security

STOCK OPTION (RIGHT TO PURCHASE)

Table

Derivative (Table II)

Transaction date

Dec 3, 2025

Transaction code

M

Shares / units

30,000

Acquired / disposed

Disposed (D)

Shares owned after

0

Ownership form

Direct

Amendment

No

Footnotes from the filing

Received as employment compensation.

Around the same time

Alfred P. West JrInsider

Filed 9mo ago

3,482Shares · @ $82.02

Traded Jan 1 · filed 1 day later

Routine share withholding; mechanical by default.

More Official record

Carmen RomeoDirector

Filed 9mo ago

16KShares

Traded Dec 30, 2025 · filed the same day

Gift or transfer — classified separately from trades.

More Official record

Kathryn MccarthyDirector

Filed 9mo ago

24Shares · @ $81.25

Traded Dec 5, 2025 · filed 24 days later

Routine share withholding; mechanical by default.

More Official record