SEI Investments Company (SEIC) Insider Trading
Over the last 3 months, SEIC insiders made 0 open-market buys and 11 sales, a net sale of -$10.8M (SEC Form 4). Over the last 6 months, 450 institutions increased and 376 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
11
Net (3m)
-$10.8M
Insider trades by month Buys Sells
Nov
Dec
Feb
Mar
Apr
May
Context3-month price +6.4%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 5, 2026 | MCCARTHY KATHRYNdirector | Option | 5,000 | $49.63 |
| May 5, 2026 | MCCARTHY KATHRYNdirector | Sell | 10,000 | $91.07 |
| Apr 30, 2026 | Warner Mark Andrewofficer: In Remarks | Option | 2,000 | $48.47 |
| Apr 30, 2026 | Warner Mark Andrewofficer: In Remarks | Sell | 4,000 | $91.16 |
| Apr 30, 2026 | Warner Mark Andrewofficer: In Remarks | Option | 4,000 | $48.47 |
| Apr 24, 2026 | McCabe Philipofficer: See Remarks | Sell | 15,000 | $91.82 |
| Apr 23, 2026 | Sharma Sanjayofficer: See Remarks* | Option | 12,500 | $49.63 |
| Apr 23, 2026 | Sharma Sanjayofficer: See Remarks* | Sell | 1,559 | $90.73 |
| Apr 23, 2026 | Peterson Michaelofficer: EXECUTIVE VICE PRESIDENT | Option | 10,000 | $48.47 |
| Apr 23, 2026 | Sharma Sanjayofficer: See Remarks* | Sell | 23,441 | $90.08 |
| Apr 23, 2026 | Peterson Michaelofficer: EXECUTIVE VICE PRESIDENT | Sell | 10,000 | $90.00 |
| Mar 19, 2026 | Denham Seanofficer: Executive VP, CFO, COO | Tax | 7,673 | $78.77 |
| Mar 12, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Sell | 25,391 | $79.97 |
| Mar 12, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Sell | 6,076 | $79.11 |
| Mar 12, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Sell | 178 | $78.88 |
| Mar 12, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Sell | 1,371 | $79.94 |
| Mar 12, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Sell | 29,431 | $80.47 |
| Feb 26, 2026 | Warner Mark Andrewother: See Remarks | Grant | 2,000 | $71.12 |
| Feb 26, 2026 | Warner Mark Andrewother: See Remarks | Sell | 4,000 | $81.74 |
| Feb 26, 2026 | Warner Mark Andrewother: See Remarks | Option | 2,000 | $71.12 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 13,054 | $88.06 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 17,009 | $86.75 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 49,937 | $87.39 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Option | 12,500 | $71.12 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Option | 17,500 | $56.54 |
| Feb 2, 2026 | Hicke Ryandirector, officer: CHIEF EXECUTIVE OFFICER | Option | 20,000 | $64.43 |
| Jan 2, 2026 | WEST ALFRED P JRother: Chairman Emeritus | Tax | 3,482 | $82.02 |
| Dec 29, 2025 | Warner Mark Andrewother: See Remarks | Tax | 379 | $81.25 |
| Dec 29, 2025 | McCabe Philipofficer: See Remarks | Tax | 1,094 | $81.25 |
| Dec 29, 2025 | WEST ALFRED P JRdirector, officer: Executive Chairman | Tax | 1,100 | $81.25 |
Source: SEIC SEC Form 4 filings, latest May 5, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SEIC positions over the last 6 months (SEC Form 13F).
Increased
450
New positions
136
Reduced
376
Sold out
118
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Reduced | 11.1M | Jan 29, 2026 |
| BLACKROCK, INC. | Increased | 10.1M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 9.6M | Feb 12, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 8.7M | Feb 12, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 8.6M | May 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 6.1M | May 8, 2026 |
| MORGAN STANLEY | Reduced | 5.1M | Feb 13, 2026 |
| MORGAN STANLEY | Reduced | 4.8M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.7M | May 15, 2026 |
| STATE STREET CORP | Reduced | 4.3M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 4.2M | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 3.1M | Feb 3, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 2.9M | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 2.9M | May 18, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.9M | Feb 9, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.