SEIC Insider Trading
SEI INVESTMENTS CO | Security Brokers, Dealers & Flotation Companies
Comprehensive Trading Performance Summary
The investment history of corporate insiders at SEI INVESTMENTS CO provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Security Brokers, Dealers & Flotation Companies sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2026-03-12 14:13 | 2026-03-10 | WEST ALFRED P JR | Other | SELL | $80.12 | 62,447 | $5,003,141 | 6,875,783 | -0.9% |
| 2026-02-26 19:59 | 2026-02-25 | Warner Mark Andrew | Other | OPT+S | $81.74 | 4,000 | $326,960 | 921 | 0.0% |
| 2026-02-02 19:52 | 2026-01-29 | Hicke Ryan | Director, Officer - CHIEF EXECUTIVE OFFICER | OPT+S | $87.36 | 80,000 | $6,989,064 | 197,164 | 0.0% |
| 2025-12-23 19:15 | 2025-12-22 | DORAN WILLIAM | Director | SELL | $83.85 | 7,000 | $586,950 | 623,802 | -1.1% |
| 2025-12-09 00:20 | 2025-12-04 | McCabe Philip | Officer - See Remarks | OPT+S | $81.11 | 12,000 | $973,320 | 62,544 | 0.0% |
| 2025-12-06 01:57 | 2025-12-03 | WEST ALFRED P JR | Director, Officer - Executive Chairman | OPT+S | $80.87 | 24,770 | $2,003,150 | 6,942,812 | 0.0% |
| 2025-11-13 22:21 | 2025-11-12 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $84.21 | 25,000 | $2,105,250 | 13,500 | 0.0% |
| 2025-11-12 19:20 | 2025-11-11 | ROMEO CARMEN | Director | OPT+S | $84.01 | 5,000 | $420,050 | 1,573,527 | 0.0% |
| 2025-09-29 23:18 | 2025-09-29 | MCCARTHY KATHRYN | Director | OPT+S | $85.66 | 10,000 | $856,600 | 75,641 | 0.0% |
| 2025-09-25 00:53 | 2025-09-23 | GUARINO CARL | Director | OPT+S | $86.41 | 10,000 | $864,100 | 16,042 | 0.0% |
| 2025-08-20 23:46 | 2025-08-19 | Hicke Ryan | Director, Officer - CHIEF EXECUTIVE OFFICER | OPT+S | $88.30 | 35,000 | $3,090,500 | 171,260 | 0.0% |
| 2025-08-09 01:53 | 2025-08-07 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $88.55 | 7,089 | $627,731 | 13,500 | 0.0% |
| 2025-08-06 23:05 | 2025-08-05 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $88.69 | 684 | $60,664 | 13,500 | 0.0% |
| 2025-08-04 18:59 | 2025-07-31 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $88.51 | 4,727 | $418,387 | 13,500 | 0.0% |
| 2025-07-30 22:26 | 2025-07-29 | Warner Mark Andrew | Other | OPT+S | $88.75 | 5,000 | $443,750 | 1,300 | 0.0% |
| 2025-05-30 19:53 | 2025-05-28 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $85.08 | 141,126 | $12,006,817 | 6,937,582 | -2.0% |
| 2025-05-16 15:56 | 2025-05-14 | Sharma Sanjay | Officer - See Remarks* | OPT+S | $83.40 | 20,000 | $1,668,000 | 23,895 | 0.0% |
| 2025-05-16 21:25 | 2025-05-14 | Hicke Ryan | Officer - CHIEF EXECUTIVE OFFICER | OPT+S | $83.36 | 21,000 | $1,750,560 | 171,260 | 0.0% |
| 2025-05-16 15:57 | 2025-05-15 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $84.27 | 50,000 | $4,213,500 | 13,500 | 0.0% |
| 2025-03-07 18:45 | 2025-03-05 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $76.28 | 1,372 | $104,656 | 7,078,708 | 0.0% |
| 2025-03-05 18:41 | 2025-03-03 | Warner Mark Andrew | Other | OPT+S | $80.39 | 5,000 | $401,950 | 1,300 | 0.0% |
| 2025-03-05 18:44 | 2025-03-03 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $77.88 | 152,842 | $11,903,335 | 7,080,080 | -2.1% |
| 2024-12-18 00:09 | 2024-12-13 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $85.55 | 146,200 | $12,507,483 | 7,232,922 | -2.0% |
| 2024-12-07 01:28 | 2024-12-04 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | OPT+S | $82.91 | 24,994 | $2,072,168 | 7,371,522 | 0.0% |
| 2024-11-27 23:32 | 2024-11-26 | DORAN WILLIAM | Director | SELL | $81.80 | 5,000 | $409,000 | 661,386 | -0.8% |
| 2024-11-12 21:41 | 2024-11-07 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $80.28 | 137,099 | $11,006,870 | 7,361,516 | -1.8% |
| 2024-11-08 20:22 | 2024-11-06 | Peterson Michael | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $79.14 | 10,000 | $791,400 | 6,500 | 0.0% |
| 2024-11-08 20:24 | 2024-11-06 | ROMEO CARMEN | Director | OPT+S | $79.64 | 5,000 | $398,200 | 1,577,652 | 0.0% |
| 2024-10-29 22:39 | 2024-10-28 | McCabe Philip | Officer - EVP - Head of Investment Mgmt | OPT+S | $75.91 | 10,500 | $797,055 | 43,544 | 0.0% |
| 2024-10-29 23:02 | 2024-10-25 | Hicke Ryan | Director, Officer - Chief Executive Officer | OPT+S | $74.90 | 10,000 | $749,000 | 147,609 | 0.0% |
| 2024-10-29 23:01 | 2024-10-25 | Peterson Michael | Officer - EVP and General Counsel | OPT+S | $74.59 | 25,000 | $1,864,760 | 6,500 | 0.0% |
| 2024-10-29 22:55 | 2024-10-28 | GUARINO CARL | Director | OPT+S | $75.77 | 7,564 | $573,124 | 13,867 | 0.0% |
| 2024-08-30 16:23 | 2024-08-29 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $67.50 | 5,670 | $382,725 | 7,498,615 | -0.1% |
| 2024-08-29 00:08 | 2024-08-27 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $67.18 | 101,129 | $6,793,593 | 7,504,285 | -1.3% |
| 2024-08-27 17:12 | 2024-08-23 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $67.52 | 71,582 | $4,833,446 | 7,605,414 | -0.9% |
| 2024-06-25 13:56 | 2024-06-24 | DORAN WILLIAM | Director | SELL | $67.04 | 5,000 | $335,200 | 656,386 | -0.8% |
| 2024-05-14 19:08 | 2024-05-13 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $68.09 | 48,475 | $3,300,575 | 7,676,996 | -0.6% |
| 2024-05-13 17:18 | 2024-05-09 | WEST ALFRED P JR | Director, Officer - Executive Chairman | SELL | $68.61 | 140,000 | $9,605,400 | 7,725,471 | -1.8% |
| 2024-04-01 16:26 | 2024-03-28 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | SELL | $72.14 | 19,363 | $1,396,847 | 7,865,471 | -0.2% |
| 2024-03-28 17:42 | 2024-03-08 | KLAUDER PAUL | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $69.80 | 2,000 | $139,600 | 20,752 | 0.0% |
| 2024-03-28 19:45 | 2024-03-26 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | SELL | $70.75 | 150,000 | $10,612,500 | 7,884,834 | -1.9% |
| 2024-02-26 19:54 | 2024-02-23 | Warner Mark Andrew | Other | OPT+S | $67.31 | 3,000 | $201,930 | 1,300 | 0.0% |
| 2024-02-14 19:57 | 2024-02-12 | Sharma Sanjay | Officer - See Remarks* | OPT+S | $67.20 | 15,000 | $1,008,000 | 16,895 | 0.0% |
| 2024-02-09 18:30 | 2024-02-07 | WITHROW WAYNE | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $66.16 | 16,970 | $1,122,803 | 55,399 | 0.0% |
| 2024-02-07 18:33 | 2024-02-05 | WITHROW WAYNE | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $65.89 | 18,030 | $1,188,004 | 55,399 | 0.0% |
| 2023-12-04 23:38 | 2023-12-01 | ROMEO CARMEN | Director | OPT+S | $59.00 | 5,000 | $295,000 | 1,589,352 | 0.0% |
| 2023-12-05 03:13 | 2023-12-01 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | OPT+S | $59.81 | 34,043 | $2,035,979 | 8,030,834 | 0.0% |
| 2023-11-22 23:57 | 2023-11-22 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | SELL | $57.91 | 18,559 | $1,074,752 | 8,019,877 | -0.2% |
| 2023-11-22 00:42 | 2023-11-21 | WITHROW WAYNE | Officer - EXECUTIVE VICE PRESIDENT | OPT+S | $58.00 | 8,924 | $517,592 | 55,399 | 0.0% |
| 2023-11-22 00:39 | 2023-11-17 | WEST ALFRED P JR | Director, Officer, 10% owner - Executive Chairman | SELL | $57.99 | 188,583 | $10,936,230 | 8,038,436 | -2.3% |
How to Interpret $SEIC Trades
Not every insider transaction in SEI INVESTMENTS CO is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $SEIC shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for SEIC
Insider activity data for SEI INVESTMENTS CO is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $SEIC, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.