Warner Mark Andrew sold SEI Investments Co. ($SEIC) shares on the open market twice in the last 365 days for a total of $771,000. His most recent sale occurred on February 25, 2026. These sales rank 5,504th among 11,678 individual insiders in our database, where the average sale amount is 8.6 million dollars across about 6.4 transactions per insider. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 25, 2026 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | S | Common Stock | 4000 | $81.74 | 921.0000 | 127,684,000 | 81.28% | 0.00% |
| Feb. 25, 2026 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | A | Common Stock | 2000 | $71.12 | 4,921.0000 | 127,684,000 | 68.47% | 0.00% |
| Feb. 25, 2026 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | A | Common Stock | 2000 | $71.12 | 2,921.0000 | 127,684,000 | 217.16% | 0.00% |
| Feb. 25, 2026 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2000 | $0.00 | 0.0000 | 127,684,000 | 100.00% | 0.00% |
| Feb. 25, 2026 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2000 | $0.00 | 0.0000 | 127,684,000 | 100.00% | 0.00% |
| Dec. 5, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | F | Common Stock | 379 | $81.25 | 921.0000 | 127,684,000 | 29.15% | 0.00% |
| July 29, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | Common Stock | 5000 | $49.63 | 6,300.0000 | 131,727,000 | 384.62% | 0.00% |
| July 29, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | S | Common Stock | 5000 | $88.75 | 1,300.0000 | 131,727,000 | 79.37% | 0.00% |
| July 29, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2500 | $0.00 | 0.0000 | 131,727,000 | 100.00% | 0.00% |
| July 29, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2500 | $0.00 | 0.0000 | 131,727,000 | 100.00% | 0.00% |
| March 3, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | Common Stock | 2500 | $53.34 | 3,800.0000 | 131,727,000 | 192.31% | 0.00% |
| March 3, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2500 | $0.00 | 0.0000 | 131,727,000 | 100.00% | 0.00% |
| March 3, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | S | Common Stock | 5000 | $80.39 | 1,300.0000 | 131,727,000 | 79.37% | 0.00% |
| March 3, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | Common Stock | 2500 | $53.34 | 6,300.0000 | 131,727,000 | 65.79% | 0.00% |
| March 3, 2025 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 2500 | $0.00 | 0.0000 | 131,727,000 | 100.00% | 0.00% |
| Feb. 23, 2024 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | STOCK OPTION RIGHT TO PURCHASE | 3000 | $0.00 | 0.0000 | 133,728,000 | 100.00% | 0.00% |
| Feb. 23, 2024 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | M | Common Stock | 3000 | $40.64 | 4,300.0000 | 133,728,000 | 230.77% | 0.00% |
| Feb. 23, 2024 | SEI INVESTMENTS CO | $SEIC | Warner Mark Andrew | Other | S | Common Stock | 3000 | $67.31 | 1,300.0000 | 133,728,000 | 69.77% | 0.00% |