Mark Andrew Warner

Companies

• SEI Investments CompanyVP, Controller and CAO Apr 6, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• SEI Investments Company SEIC921 shares²$96.6K at $104.91Jul 28, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 28, 2026Sold 7,400 shares at $102.97 of SEI Investments Company²
• Jul 28, 2026Sold 5,300 shares at $102.01 of SEI Investments Company²
• Jul 28, 2026Sold 2,300 shares at $101.11 of SEI Investments Company²
• Jul 28, 2026Exercised options 5,000 shares at $56.54 of SEI Investments Company²
• Jul 28, 2026Exercised options 5,000 shares at $56.54 of SEI Investments Company²
• Jul 28, 2026Exercised options 2,500 shares at $64.43 of SEI Investments Company²
• Jul 28, 2026Exercised options 2,500 shares at $64.43 of SEI Investments Company²
• Apr 28, 2026Sold 4,000 shares at $91.16 of SEI Investments Company³
• Apr 28, 2026Exercised options 4,000 shares at $48.47 of SEI Investments Company³
• Feb 25, 2026Sold 4,000 shares at $81.74 of SEI Investments Company⁴
• Feb 25, 2026Granted 2,000 shares at $71.12 of SEI Investments Company⁴
• Feb 25, 2026Granted 2,000 shares at $71.12 of SEI Investments Company⁴
• Dec 5, 2025Shares withheld for tax 379 shares at $81.25 of SEI Investments Company⁵
• Jul 29, 2025Sold 5,000 shares at $88.75 of SEI Investments Company⁶
• Jul 29, 2025Exercised options 5,000 shares at $49.63 of SEI Investments Company⁶
• Mar 3, 2025Sold 5,000 shares at $80.39 of SEI Investments Company⁷
• Mar 3, 2025Exercised options 2,500 shares at $53.34 of SEI Investments Company⁷
• Mar 3, 2025Exercised options 2,500 shares at $53.34 of SEI Investments Company⁷
• Feb 23, 2024Sold 3,000 shares at $67.31 of SEI Investments Company⁸
• Feb 23, 2024Exercised options 3,000 shares at $40.64 of SEI Investments Company⁸