SEC Insider Transactions from Warner Mark Andrew.

Last updated: 2026-03-14 11:52 UTC | Total transactions: 18

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.

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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%