16 insiders reported 130 Form 4 transactions for SEI INVESTMENTS CO (SEIC) over the past 18 months (most recent 2026-08-06). Recent activity: McCabe Philip (See Remarks) Buy 9,957 shares, McCabe Philip (See Remarks) Buy 15,000 shares, McCabe Philip (See Remarks) Sell 24,957 shares, McCabe Philip (See Remarks) Buy 5,043 shares, McCabe Philip (See Remarks) Sell 5,043 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-06 | McCabe Philip | See Remarks | Buy | 9,957 | $494,166 |
| 2026-08-06 | McCabe Philip | See Remarks | Buy | 15,000 | $744,450 |
| 2026-08-06 | McCabe Philip | See Remarks | Sell | 24,957 | $2.6M |
| 2026-08-06 | McCabe Philip | See Remarks | Buy | 5,043 | $250,284 |
| 2026-08-06 | McCabe Philip | See Remarks | Sell | 5,043 | $532,036 |
| 2026-08-04 | MCCARTHY KATHRYN | Director | Buy | 5,000 | $355,600 |
| 2026-08-04 | MCCARTHY KATHRYN | Director | Buy | 5,000 | $355,600 |
| 2026-08-04 | MCCARTHY KATHRYN | Director | Sell | 10,000 | $1.0M |
| 2026-07-30 | Peterson Michael | Executive Vice President | Sell | 25,000 | $2.6M |
| 2026-07-30 | Peterson Michael | Executive Vice President | Buy | 25,000 | $1.4M |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Buy | 2,500 | $161,075 |
| 2026-07-30 | GUARINO CARL | Director | Buy | 5,000 | $248,150 |
| 2026-07-30 | GUARINO CARL | Director | Buy | 5,000 | $248,150 |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Buy | 2,500 | $161,075 |
| 2026-07-30 | GUARINO CARL | Director | Sell | 10,000 | $1.0M |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Buy | 5,000 | $282,700 |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Buy | 5,000 | $282,700 |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Sell | 2,300 | $232,542 |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Sell | 5,300 | $540,658 |
| 2026-07-30 | Warner Mark Andrew | See Remarks* | Sell | 7,400 | $761,993 |
| 2026-07-28 | Sharma Sanjay | See Remarks* | Buy | 10,000 | $711,200 |
| 2026-07-28 | Shah Sneha S. | See Remarks* | Sell | 3,746 | $362,351 |
| 2026-07-28 | Sharma Sanjay | See Remarks* | Buy | 10,000 | $711,200 |
| 2026-07-28 | Sharma Sanjay | See Remarks* | Sell | 20,000 | $2.0M |
| 2026-06-29 | WEST ALFRED P JR | Insider | Sell | 46,162 | $4.0M |
Source: SEC Form 4 filings · as of 2026-08-06