Mark Andrew Warner serves as Executive at SEI INVESTMENTS CO, where they oversee executive responsibilities. Since joining the company, Mark Andrew Warner has executed 5 insider transactions totaling $645.7K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 5, 2025 involved selling 379 shares valued at $30.8K.
Mark Andrew Warner currently holds 921 shares of SEI INVESTMENTS CO (SEIC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark Andrew Warner has been a net seller of SEIC stock. They have purchased $0 and sold $645.7K worth of shares.
Mark Andrew Warner's most recent insider trade was on Dec 5, 2025, when they sold 379 shares at $81.25 per share.
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| $49.63 |
| Discretionary |
| Jul 29, 2025 | SEIC | $443.8K | Sale | 5,000 | $88.75 | Discretionary |
| Feb 23, 2024 | SEIC | $201.9K | Sale | 3,000 | $67.31 | Discretionary |
| Feb 23, 2024 | SEIC | $121.9K | Option Exercise | 3,000 | $40.64 | Discretionary |