Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2025-09-29 Sale | 2025-09-29 4:18 pm | SEI INVESTMENTS CO | SEIC | MCCARTHY KATHRYN Director | 10,000 | $85.66 | $856,600 | 75,641 (Direct) | View |
2025-09-23 Sale | 2025-09-24 5:53 pm | SEI INVESTMENTS CO | SEIC | GUARINO CARL Director | 10,000 | $86.41 | $864,100 | 16,042 (Direct) | View |
2025-08-19 Sale | 2025-08-20 4:46 pm | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 35,000 | $88.3 | $3,090,500 | 185,947 (Indirect Direct) | View |
2025-08-07 Sale | 2025-08-08 6:53 pm | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 7,089 | $88.55 | $627,731 | 13,500 (Direct) | View |
2025-08-05 Sale | 2025-08-06 4:05 pm | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 684 | $88.69 | $60,664 | 20,589 (Direct) | View |
2025-07-31 Sale | 2025-08-04 11:59 am | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 4,727 | $88.51 | $418,387 | 21,273 (Direct) | View |
2025-07-29 Sale | 2025-07-30 3:26 pm | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 5,000 | $88.75 | $443,750 | 1,300 (Direct) | View |
2025-05-28 Sale | 2025-05-30 12:53 pm | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman | 141,126 | $85.08 | $12,006,823 | 6,937,582 (Direct) | View |
2025-05-14 Sale | 2025-05-16 2:25 pm | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 21,000 | $83.36 | $1,750,560 | 185,878 (Indirect Direct) | View |
2025-05-15 Sale | 2025-05-16 08:57 am | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 50,000 | $84.27 | $4,213,500 | 13,500 (Direct) | View |
2025-05-14 Sale | 2025-05-16 08:56 am | SEI INVESTMENTS CO | SEIC | Sharma Sanjay See Remarks* | 20,000 | $83.4 | $1,668,000 | 26,264 (Indirect Direct) | View |
2025-03-05 Sale | 2025-03-07 10:45 am | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman | 1,372 | $76.28 | $104,656 | 7,078,708 (Direct) | View |
2025-03-03 Sale | 2025-03-05 10:44 am | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman | 152,842 | $77.88 | $11,903,333 | 7,080,080 (Direct) | View |
2025-03-03 Sale | 2025-03-05 10:41 am | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 5,000 | $80.39 | $401,950 | 1,300 (Direct) | View |
2024-12-13 Sale | 2024-12-17 4:09 pm | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman | 146,200 | $85.55 | $12,507,480 | 7,232,922 (Direct) | View |
2024-12-04 Sale | 2024-12-06 5:28 pm | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman 10% Owner | 24,994 | $82.91 | $2,072,167 | 7,371,522 (Direct) | View |
2024-11-26 Sale | 2024-11-27 3:32 pm | SEI INVESTMENTS CO | SEIC | DORAN WILLIAM Director | 5,000 | $81.8 | $409,000 | 661,386 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2025-09-29 Exercise | 2025-09-29 4:18 pm | 2017-12-31 2025-12-08 | SEI INVESTMENTS CO | SEIC | MCCARTHY KATHRYN Director | 10,000 | $0 | 75,641 (Direct) | View |
2025-09-29 Exercise | 2025-09-29 4:18 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | MCCARTHY KATHRYN Director | 10,000 | $53.34 | 75,641 (Direct) | View |
2025-09-23 Exercise | 2025-09-24 5:53 pm | 2017-12-31 2025-12-08 | SEI INVESTMENTS CO | SEIC | GUARINO CARL Director | 10,000 | $0 | 16,042 (Direct) | View |
2025-09-23 Exercise | 2025-09-24 5:53 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | GUARINO CARL Director | 10,000 | $53.34 | 16,042 (Direct) | View |
2025-09-16 Tax Withholding | 2025-09-17 10:07 am | N/A N/A | SEI INVESTMENTS CO | SEIC | LANE MICHAEL Executive Vice President | 3,935 | $86.6 | 33,220 (Direct) | View |
2025-08-19 Exercise | 2025-08-20 4:46 pm | 2017-12-31 2026-12-13 | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 35,000 | $0 | 185,947 (Direct) | View |
2025-08-19 Exercise | 2025-08-20 4:46 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 17,500 | $49.63 | 185,947 (Direct) | View |
2025-08-07 Exercise | 2025-08-08 6:53 pm | 2024-12-31 2032-12-05 | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 7,089 | $0 | 13,500 (Direct) | View |
2025-08-07 Exercise | 2025-08-08 6:53 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 7,089 | $61.81 | 13,500 (Direct) | View |
2025-08-05 Exercise | 2025-08-06 4:05 pm | 2024-12-31 2032-12-05 | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 684 | $0 | 20,589 (Direct) | View |
2025-08-05 Exercise | 2025-08-06 4:05 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 684 | $61.81 | 20,589 (Direct) | View |
2025-07-31 Exercise | 2025-08-04 11:59 am | 2024-12-31 2032-12-05 | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 4,727 | $0 | 21,273 (Direct) | View |
2025-07-31 Exercise | 2025-08-04 11:59 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 4,727 | $61.81 | 21,273 (Direct) | View |
2025-07-29 Exercise | 2025-07-30 3:26 pm | 2017-12-31 2026-12-13 | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 5,000 | $0 | 1,300 (Direct) | View |
2025-07-29 Exercise | 2025-07-30 3:26 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 5,000 | $49.63 | 1,300 (Direct) | View |
2025-07-22 Option Award | 2025-07-24 12:39 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Naratil Thomas C. Director | 2,076 | $0 | 2,076 (Direct) | View |
2025-07-22 Option Award | 2025-07-24 12:12 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Risi Karin A. Director | 2,076 | $0 | 2,076 (Direct) | View |
2025-05-14 Exercise | 2025-05-16 2:25 pm | 2017-12-31 2025-12-08 | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 24,000 | $0 | 185,878 (Direct) | View |
2025-05-14 Exercise | 2025-05-16 2:25 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 24,000 | $53.34 | 185,878 (Direct) | View |
2025-05-15 Exercise | 2025-05-16 08:57 am | 2022-12-31 2030-12-08 | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 50,000 | $0 | 13,500 (Direct) | View |
2025-05-15 Exercise | 2025-05-16 08:57 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 37,500 | $56.54 | 13,500 (Direct) | View |
2025-05-15 Exercise | 2025-05-16 08:57 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 12,500 | $60.46 | 13,500 (Direct) | View |
2025-05-14 Exercise | 2025-05-16 08:56 am | 2017-12-31 2025-12-08 | SEI INVESTMENTS CO | SEIC | Sharma Sanjay See Remarks* | 20,000 | $0 | 26,264 (Direct) | View |
2025-05-14 Exercise | 2025-05-16 08:56 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Sharma Sanjay See Remarks* | 20,000 | $53.34 | 26,264 (Direct) | View |
2025-03-31 Tax Withholding | 2025-04-01 2:42 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 4,349 | $77.11 | 182,895 (Direct) | View |
2025-03-18 Tax Withholding | 2025-03-19 3:40 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | Denham Sean Executive Vice President, CFO | 7,823 | $74.96 | 52,177 (Direct) | View |
2025-03-03 Exercise | 2025-03-05 10:41 am | 2018-12-31 2025-12-08 | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 5,000 | $0 | 1,300 (Direct) | View |
2025-03-03 Exercise | 2025-03-05 10:41 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Warner Mark Andrew See Remarks | 2,500 | $53.34 | 1,300 (Direct) | View |
2024-12-31 Gift | 2025-01-03 10:35 am | N/A N/A | SEI INVESTMENTS CO | SEIC | DORAN WILLIAM Director | 47,500 | $0 | 618,536 (Direct) | View |
2024-12-31 Gift | 2025-01-02 5:50 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | ROMEO CARMEN Director | 6,300 | $0 | 1,573,527 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 4:50 pm | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | Hicke Ryan CHIEF EXECUTIVE OFFICER | 175,000 | $0 | 336,796 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 12:14 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman | 7,600 | $0 | 7,379,122 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 11:05 am | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | Sharma Sanjay See Remarks* | 43,000 | $0 | 59,895 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 11:03 am | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | Denham Sean Executive Vice President, CFO | 37,500 | $0 | 82,500 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 11:01 am | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | McCabe Philip See Remarks | 43,000 | $0 | 86,544 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:58 am | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | Peterson Michael EXECUTIVE VICE PRESIDENT | 43,000 | $0 | 49,500 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:54 am | N/A 2034-12-12 | SEI INVESTMENTS CO | SEIC | LANE MICHAEL Executive Vice President | 43,000 | $0 | 73,000 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:52 am | N/A N/A | SEI INVESTMENTS CO | SEIC | DORAN WILLIAM Director | 2,175 | $0 | 663,561 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:49 am | N/A N/A | SEI INVESTMENTS CO | SEIC | GUARINO CARL Director | 2,175 | $0 | 16,442 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:44 am | N/A N/A | SEI INVESTMENTS CO | SEIC | Brassington Jonathan Director | 2,175 | $0 | 3,941 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:40 am | N/A N/A | SEI INVESTMENTS CO | SEIC | MCCARTHY KATHRYN Director | 2,175 | $0 | 75,641 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:38 am | N/A N/A | SEI INVESTMENTS CO | SEIC | ROMEO CARMEN Director | 2,175 | $0 | 1,579,827 (Direct) | View |
2024-12-12 Option Award | 2024-12-16 10:36 am | N/A N/A | SEI INVESTMENTS CO | SEIC | MILLER STEPHANIE D. Director | 2,175 | $0 | 3,941 (Direct) | View |
2024-12-04 Exercise | 2024-12-06 5:28 pm | 2021-12-09 2024-12-09 | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman 10% Owner | 35,000 | $0 | 7,371,522 (Direct) | View |
2024-12-04 Exercise | 2024-12-06 5:28 pm | N/A N/A | SEI INVESTMENTS CO | SEIC | WEST ALFRED P JR Executive Chairman 10% Owner | 35,000 | $40.64 | 7,371,522 (Direct) | View |
2024-11-20 Exercise | 2024-11-21 07:56 am | 2017-12-31 2024-12-09 | SEI INVESTMENTS CO | SEIC | DORAN WILLIAM Director | 10,000 | $0 | 666,386 (Direct) | View |
2024-11-20 Exercise | 2024-11-21 07:56 am | N/A N/A | SEI INVESTMENTS CO | SEIC | DORAN WILLIAM Director | 5,000 | $40.64 | 666,386 (Direct) | View |