SEI Investments Co
SEIC- Exchange
- Nasdaq
- Industry
- Security Brokers, Dealers & Flotation Companies
- SEC CIK
- 0000350894
In the last 90 days, SEI Investments Co insiders filed 0 open-market purchases and 11 sales; 575 institutions reported holding it in 13F filings for Q2 2026, worth $7.94B in total; Markel Group is the only superinvestor holding it.
13F holders, Q1 2025
Institutional positions in SEI Investments Co as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 546
- +16 vs. Q4 2024
- Shares held
- 93.7M
- +2.84M (+3.1%) vs. Q4 2024
- Total value
- $7.27B
- −$226.7M (−3.0%) vs. Q4 2024
- New holders
- 68
- 192 more added
- Sold out
- 52
- 186 more reduced
10 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SEIC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 575 | $7.94B |
| Q1 2026 | 569 | $7.06B |
| Q4 2025 | 562 | $7.31B |
| Q3 2025 | 550 | $7.51B |
| Q2 2025 | 564 | $8.09B |
| Q1 2025 | 546 | $7.27B |
| Q4 2024 | 540 | $7.52B |
| Q3 2024 | 502 | $6.35B |
| Q2 2024 | 493 | $6.02B |
| Q1 2024 | 475 | $6.77B |
| Q4 2023 | 491 | $5.90B |
| Q3 2023 | 462 | $5.63B |
| Q2 2023 | 458 | $5.53B |
| Q1 2023 | 444 | $5.36B |
| Q4 2022 | 446 | $5.45B |
| Q3 2022 | 433 | $4.63B |
| Q2 2022 | 456 | $5.18B |
| Q1 2022 | 465 | $5.81B |
| Q4 2021 | 472 | $5.94B |
| Q3 2021 | 446 | $5.73B |
| Q2 2021 | 440 | $6.04B |
| Q1 2021 | 443 | $5.97B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| South Dakota Investment Council | 8,528 | $662.0K | 0.01% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 8,451 | $656.1K | 0.00% | −179−2.1% | Reduced |
| Tredje AP-fonden | 8,427 | $654.2K | 0.01% | 00.0% | Unchanged |
| Grantham, Mayo, Van Otterloo & Co. LLC | 8,224 | $638.4K | 0.00% | +8,224 | New |
| Wellington Shields & Co., LLC | 8,000 | $621.0K | 0.19% | −1,000−11.1% | Reduced |
| Centiva Capital, LP | 7,967 | $618.5K | 0.04% | +7,967 | New |
| Aviva PLC | 7,937 | $616.1K | 0.00% | +565+7.7% | Added |
| Investment Management Corp | 7,789 | $604.7K | 0.55% | 00.0% | Unchanged |
| Metis Global Partners, LLC | 7,728 | $599.9K | 0.02% | +933+13.7% | Added |
| MQS Management LLC | 7,683 | $596.4K | 0.34% | +7,683 | New |
| Nilsine Partners, LLC | 7,579 | $588.4K | 0.06% | −897−10.6% | Reduced |
| Par Capital Management Inc | 7,500 | $582.2K | 0.02% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 7,343 | $569.5K | 0.00% | +165+2.3% | Added |
| Securian Asset Management, Inc | 7,306 | $567.2K | 0.02% | −100−1.4% | Reduced |
| Aster Capital Management (DIFC) Ltd | 6,761 | $541.2K | 0.10% | +6,761 | New |
| Federation des caisses Desjardins du Quebec | 6,961 | $540.5K | 0.00% | −27,807−80.0% | Reduced |
| Fayez Sarofim & Co | 6,675 | $518.2K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 6,637 | $515.0K | 0.00% | +2,187+49.1% | Added |
| Haverford Trust Co | 6,613 | $513.4K | 0.01% | 00.0% | Unchanged |
| MML Investors Services, LLC | 6,611 | $513.0K | 0.00% | +1,798+37.4% | Added |
| Kahn Brothers Group Inc | 6,596 | $512.0K | 0.10% | +1,449+28.2% | Added |
| Cetera Investment Advisers | 6,582 | $511.0K | 0.00% | +1,364+26.1% | Added |
| Portside Wealth Group, LLC | 6,429 | $499.1K | 0.08% | +1,003+18.5% | Added |
| Fullerton Fund Management Co Ltd. | 6,415 | $498.0K | 0.03% | +6,415 | New |
| Baker Tilly Wealth Management, LLC | 6,391 | $496.2K | 0.19% | +488+8.3% | Added |
| Lecap Asset Management Ltd | 6,338 | $492.0K | 0.11% | +515+8.8% | Added |
| Gulf International Bank (UK) Ltd | 6,326 | $491.0K | 0.02% | −2,510−28.4% | Reduced |
| Lansing Street Advisors | 6,316 | $490.3K | 0.16% | 00.0% | Unchanged |
| Beaumont Financial Advisors, LLC | 6,292 | $488.4K | 0.04% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 6,375 | $486.0K | 0.00% | −48−0.7% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 6,169 | $478.9K | 0.02% | −5,553−47.4% | Reduced |
| Clearstead Advisors, LLC | 6,147 | $477.2K | 0.01% | +6,030+5,153.8% | Added |
| Advisor OS, LLC | 6,131 | $476.0K | 0.05% | +1,028+20.1% | Added |
| Prudential PLC | 6,109 | $474.2K | 0.00% | +3,680+151.5% | Added |
| Panagora Asset Management Inc | 6,094 | $473.1K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 6,061 | $470.5K | 0.04% | +1,192+24.5% | Added |
| Legacy Advisors, LLC | 5,980 | $464.2K | 0.05% | +1,187+24.8% | Added |
| AdvisorShares Investments LLC | 5,920 | $457.5K | 0.09% | −1,000−14.5% | Reduced |
| United Services Automobile Association | 5,770 | $444.9K | 0.01% | +5,770 | New |
| Ashton Thomas Securities, LLC | 5,666 | $439.9K | 0.12% | −303−5.1% | Reduced |
| Concurrent Investment Advisors, LLC | 5,600 | $434.7K | 0.01% | +160+2.9% | Added |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 5,556 | $431.3K | 0.02% | −1,983−26.3% | Reduced |
| Pacer Advisors, Inc. | 5,533 | $429.5K | 0.00% | −9,074−62.1% | Reduced |
| SG Americas Securities, LLC | 5,488 | $426.0K | 0.00% | −19,311−77.9% | Reduced |
| MJP Associates Inc | 5,277 | $409.7K | 0.07% | +911+20.9% | Added |
| Mariner, LLC | 5,070 | $393.6K | 0.00% | −3,334−39.7% | Reduced |
| CIBC World Markets Corp | 4,986 | $387.1K | 0.00% | −10−0.2% | Reduced |
| Cadent Capital Advisors, LLC | 4,855 | $376.9K | 0.14% | +698+16.8% | Added |
| Kestra Investment Management, LLC | 4,841 | $375.8K | 0.01% | +481+11.0% | Added |
| Snowden Capital Advisors LLC | 4,839 | $375.7K | 0.01% | −46−0.9% | Reduced |
| Tower Research Capital LLC (TRC) | 4,780 | $371.1K | 0.01% | −1,686−26.1% | Reduced |
| Maryland State Retirement & Pension System | 4,670 | $362.5K | 0.01% | −1,103−19.1% | Reduced |
| Legacy Financial Advisors, Inc. | 4,649 | $360.9K | 0.06% | −3−0.1% | Reduced |
| Ci Investments Inc. | 4,635 | $360.0K | 0.00% | +455+10.9% | Added |
| Fifth Third Wealth Advisors LLC | 4,542 | $352.6K | 0.02% | +886+24.2% | Added |
| S-Bank Fund Management Ltd | 4,491 | $348.6K | 0.07% | +4,491 | New |
| Ethic Inc. | 4,370 | $337.7K | 0.01% | −102−2.3% | Reduced |
| Bessemer Group Inc | 4,284 | $332.0K | 0.00% | +2,363+123.0% | Added |
| Florida Financial Advisors, LLC | 4,214 | $327.1K | 0.13% | −35−0.8% | Reduced |
| Valley National Advisers Inc | 4,211 | $326.0K | 0.06% | −328−7.2% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 4,185 | $324.9K | 0.01% | −1,004−19.3% | Reduced |
| Change Path, LLC | 4,150 | $322.2K | 0.01% | +1,222+41.7% | Added |
| Public Employees Retirement Association of Colorado | 4,145 | $322.0K | 0.00% | 00.0% | Unchanged |
| EntryPoint Capital, LLC | 4,090 | $317.5K | 0.15% | +4,090 | New |
| CAPROCK Group, Inc. | 4,070 | $316.0K | 0.01% | −418−9.3% | Reduced |
| Quadrant Capital Group LLC | 4,029 | $312.8K | 0.01% | +2,563+174.8% | Added |
| WBH Advisory Inc | 4,000 | $310.5K | 0.03% | 00.0% | Unchanged |
| Carbahal Olsen Financial Services Group, LLC | 4,000 | $310.5K | 0.29% | 00.0% | Unchanged |
| Cooper Financial Group | 3,990 | $309.8K | 0.04% | +105+2.7% | Added |
| Meiji Yasuda Asset Management Co Ltd. | 3,971 | $308.3K | 0.01% | −70,150−94.6% | Reduced |
| Kestra Advisory Services, LLC | 3,955 | $307.0K | 0.00% | +633+19.1% | Added |
| Citadel Investment Advisory, Inc. | 3,940 | $306.0K | 0.15% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 3,947 | $304.2K | 0.00% | 00.0% | Unchanged |
| Lindenwold Advisors | 3,908 | $303.4K | 0.17% | −63−1.6% | Reduced |
| Camden Capital, LLC | 3,896 | $302.4K | 0.03% | −1,689−30.2% | Reduced |
| Bank of Nova Scotia | 3,878 | $301.0K | 0.00% | −21,507−84.7% | Reduced |
| Cullen Investment Group, Ltd. | 3,862 | $299.8K | 0.05% | +21+0.5% | Added |
| AE Wealth Management LLC | 3,854 | $299.2K | 0.00% | +3,854 | New |
| AXA S.A. | 3,843 | $298.3K | 0.00% | −612−13.7% | Reduced |
| Atria Wealth Solutions, Inc. | 3,697 | $287.0K | 0.00% | +3,697 | New |
| Impact Partnership Wealth, LLC | 3,682 | $285.8K | 0.06% | +3,682 | New |
| Northstar Financial Companies, Inc. | 3,663 | $284.3K | 0.31% | +22+0.6% | Added |
| Alliance Wealth Advisors, LLC | 3,647 | $283.1K | 0.07% | +1,029+39.3% | Added |
| Shelton Capital Management | 3,529 | $274.0K | 0.01% | −202−5.4% | Reduced |
| Standard Life Aberdeen plc | 3,382 | $262.5K | 0.00% | 00.0% | Unchanged |
| Stonegate Investment Group, LLC | 3,381 | $262.5K | 0.01% | −39−1.1% | Reduced |
| Mairs & Power Inc | 3,300 | $256.2K | 0.00% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 3,294 | $255.7K | 0.17% | +3,294 | New |
| Hardy Reed LLC | 3,288 | $255.2K | 0.02% | 00.0% | Unchanged |
| Longboard Asset Management, LP | 3,235 | $251.1K | 0.74% | 00.0% | Unchanged |
| Pitcairn Co | 3,209 | $249.1K | 0.02% | −343−9.7% | Reduced |
| Royal Capital Wealth Management, LLC | 3,200 | $248.4K | 0.17% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 3,138 | $243.6K | 0.01% | +3,138 | New |
| NBT Bank N A | 3,045 | $236.4K | 0.02% | +19+0.6% | Added |
| Rakuten Investment Management, Inc. | 3,023 | $233.1K | 0.00% | +3,023 | New |
| Keebeck Alpha, LP | 2,984 | $231.6K | 0.27% | +2,984 | New |
| Meeder Advisory Services, Inc. | 2,928 | $227.3K | 0.01% | −194−6.2% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2,913 | $226.1K | 0.00% | +2,913 | New |
| Dark Forest Capital Management LP | 2,895 | $224.7K | 0.01% | −4,669−61.7% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 2,882 | $223.7K | 0.00% | 00.0% | Unchanged |