SEIC
SEI Investments Company
NASDAQ · Financial Services · Asset Management · US
$110.39
−0.96%0
Insider buys (3m)
16
Insider sells (3m)
-$21.5M
Net value (3m)
+23.5%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 3, 2026 | ROMEO CARMEN · director | M-Exempt | 5,000 | $50 |
| Sep 3, 2026 | ROMEO CARMEN · director | Sale | 5,000 | $110 |
| Sep 1, 2026 | Peterson Michael · officer: Executive Vice President | M-Exempt | 37,500 | $57 |
| Sep 1, 2026 | Peterson Michael · officer: Executive Vice President | Sale | 37,500 | $112 |
| Aug 6, 2026 | McCabe Philip · officer: See Remarks | M-Exempt | 5,043 | $50 |
| Aug 6, 2026 | McCabe Philip · officer: See Remarks | Sale | 24,957 | $105 |
| Aug 6, 2026 | McCabe Philip · officer: See Remarks | Sale | 5,043 | $106 |
| Aug 6, 2026 | McCabe Philip · officer: See Remarks | M-Exempt | 15,000 | $50 |
| Aug 6, 2026 | McCabe Philip · officer: See Remarks | M-Exempt | 9,957 | $50 |
| Aug 4, 2026 | MCCARTHY KATHRYN · director | M-Exempt | 5,000 | $71 |
| Aug 4, 2026 | MCCARTHY KATHRYN · director | Sale | 10,000 | $104 |
| Jul 30, 2026 | GUARINO CARL · director | M-Exempt | 5,000 | $50 |
| Jul 30, 2026 | GUARINO CARL · director | Sale | 10,000 | $103 |
| Jul 30, 2026 | Warner Mark Andrew · officer: See Remarks* | M-Exempt | 5,000 | $57 |
| Jul 30, 2026 | Peterson Michael · officer: Executive Vice President | M-Exempt | 25,000 | $56 |
| Jul 30, 2026 | Warner Mark Andrew · officer: See Remarks* | M-Exempt | 2,500 | $64 |
| Jul 30, 2026 | Warner Mark Andrew · officer: See Remarks* | Sale | 7,400 | $103 |
| Jul 30, 2026 | Warner Mark Andrew · officer: See Remarks* | Sale | 2,300 | $101 |
| Jul 30, 2026 | Warner Mark Andrew · officer: See Remarks* | Sale | 5,300 | $102 |
| Jul 30, 2026 | Peterson Michael · officer: Executive Vice President | Sale | 25,000 | $102 |
| Jul 28, 2026 | Sharma Sanjay · officer: See Remarks* | M-Exempt | 10,000 | $71 |
| Jul 28, 2026 | Sharma Sanjay · officer: See Remarks* | Sale | 20,000 | $99 |
| Jul 28, 2026 | Shah Sneha S. · officer: See Remarks* | F-InKind | 3,746 | $97 |
| Jun 29, 2026 | WEST ALFRED P JR · other: Chairman Emeritus | Sale | 1,680 | $88 |
| Jun 29, 2026 | WEST ALFRED P JR · other: Chairman Emeritus | Sale | 5,652 | $87 |
| Jun 29, 2026 | WEST ALFRED P JR · other: Chairman Emeritus | Sale | 3,838 | $88 |
| Jun 29, 2026 | WEST ALFRED P JR · other: Chairman Emeritus | Sale | 46,162 | $87 |
| Jun 11, 2026 | DORAN WILLIAM · director | Sale | 5,000 | $91 |
| May 5, 2026 | MCCARTHY KATHRYN · director | Sale | 10,000 | $91 |
| May 5, 2026 | MCCARTHY KATHRYN · director | M-Exempt | 5,000 | $50 |
Institutional positioning
13F filings over the trailing two quarters
New 153Increased 384Reduced 413Sold out 63
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 10,110,337 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 9,927,545 | Aug 7, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 8,628,879 | May 14, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 8,482,052 | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 6,140,822 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 6,125,643 | May 8, 2026 |
| MORGAN STANLEY | Reduced | 4,792,279 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4,741,716 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 4,686,241 | Aug 13, 2026 |
| STATE STREET CORP | Increased | 4,251,584 | Aug 7, 2026 |
| STATE STREET CORP | Reduced | 4,185,178 | May 15, 2026 |
| MORGAN STANLEY | Reduced | 4,119,203 | Aug 13, 2026 |
| Boston Partners | Increased | 3,093,791 | Aug 4, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2,953,161 | Aug 12, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 2,920,506 | May 18, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 3, 2026