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 10 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, Q3 2023
Institutional positions in SEI Investments Co as of Sep 30, 2023. 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
- 462
- +7 vs. Q2 2023
- Shares held
- 93.4M
- +292.8K (+0.3%) vs. Q2 2023
- Total value
- $5.63B
- +$106.9M (+1.9%) vs. Q2 2023
- New holders
- 47
- 152 more added
- Sold out
- 40
- 165 more reduced
3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gulf International Bank (UK) Ltd | 10,821 | $651.0K | 0.02% | −1,100−9.2% | Reduced |
| SG Americas Securities, LLC | 10,985 | $662.0K | 0.01% | −13,496−55.1% | Reduced |
| Parallel Advisors, LLC | 11,023 | $664.0K | 0.02% | +1,360+14.1% | Added |
| TrimTabs Asset Management, LLC | 11,493 | $692.2K | 0.37% | −313−2.7% | Reduced |
| Verition Fund Management LLC | 11,588 | $697.9K | 0.01% | +5,138+79.7% | Added |
| New York Life Investment Management LLC | 11,682 | $703.6K | 0.01% | +6,179+112.3% | Added |
| Hennion & Walsh Asset Management, Inc. | 11,866 | $714.7K | 0.05% | +275+2.4% | Added |
| Pacer Advisors, Inc. | 11,998 | $722.6K | 0.00% | −5,802−32.6% | Reduced |
| TD Waterhouse Canada Inc. | 11,452 | $726.8K | 0.01% | +450+4.1% | Added |
| Intech Investment Management LLC | 12,309 | $741.4K | 0.01% | +4,051+49.1% | Added |
| Xponance, Inc. | 12,597 | $758.7K | 0.01% | +110+0.9% | Added |
| True Wealth Design, LLC | 12,638 | $761.2K | 0.25% | −270−2.1% | Reduced |
| Federated Hermes, Inc. | 12,710 | $765.5K | 0.00% | −996−7.3% | Reduced |
| Nissay Asset Management Corp | 12,877 | $775.6K | 0.01% | +211+1.7% | Added |
| M&T Bank Corp | 12,919 | $778.1K | 0.00% | −149−1.1% | Reduced |
| Oak Thistle LLC | 13,682 | $824.1K | 0.24% | +13,682 | New |
| Aviva PLC | 13,686 | $824.3K | 0.00% | −14,417−51.3% | Reduced |
| Diversified Trust Co | 13,833 | $833.2K | 0.03% | +6,383+85.7% | Added |
| O'Shaughnessy Asset Management, LLC | 13,872 | $835.5K | 0.01% | +4,442+47.1% | Added |
| Public Sector Pension Investment Board | 14,104 | $849.5K | 0.01% | 00.0% | Unchanged |
| Gould Capital, LLC | 14,744 | $872.4K | 0.70% | +195+1.3% | Added |
| AIA Group Ltd | 14,575 | $877.9K | 0.04% | −18,690−56.2% | Reduced |
| Valley National Advisers Inc | 15,254 | $919.0K | 0.16% | −2,282−13.0% | Reduced |
| Earnest Partners LLC | 15,405 | $927.8K | 0.01% | +15,363+36,578.6% | Added |
| JustInvest LLC | 15,618 | $940.7K | 0.03% | +3,389+27.7% | Added |
| Boston Financial Mangement LLC | 15,900 | $957.7K | 0.04% | 00.0% | Unchanged |
| Holocene Advisors, LP | 16,754 | $1.01M | 0.00% | +16,754 | New |
| 1832 Asset Management L.P. | 16,756 | $1.01M | 0.00% | −523−3.0% | Reduced |
| Oppenheimer Asset Management Inc. | 16,769 | $1.01M | 0.02% | −559−3.2% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 16,818 | $1.01M | 0.00% | +16,818 | New |
| AE Wealth Management LLC | 17,387 | $1.05M | 0.01% | +2,348+15.6% | Added |
| Utah Retirement Systems | 17,574 | $1.06M | 0.02% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 17,609 | $1.06M | 0.02% | −3,470−16.5% | Reduced |
| Nilsine Partners, LLC | 17,764 | $1.07M | 0.16% | −2,013−10.2% | Reduced |
| Ashton Thomas Private Wealth, LLC | 17,881 | $1.08M | 0.08% | +64+0.4% | Added |
| Donald L. Hagan, LLC | 18,178 | $1.09M | 0.66% | −543−2.9% | Reduced |
| Natixis | 18,415 | $1.11M | 0.01% | +18,112+5,977.6% | Added |
| Lafayette Investments, Inc. | 18,447 | $1.11M | 0.30% | −100−0.5% | Reduced |
| Davis R M Inc | 18,486 | $1.11M | 0.03% | −18,812−50.4% | Reduced |
| Tiedemann Advisors, LLC | 18,521 | $1.12M | 0.05% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 18,599 | $1.12M | 0.01% | +1,311+7.6% | Added |
| Tredje AP-fonden | 18,707 | $1.13M | 0.02% | −2,168−10.4% | Reduced |
| Panagora Asset Management Inc | 18,748 | $1.13M | 0.01% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 18,949 | $1.14M | 0.00% | +2,661+16.3% | Added |
| Standard Life Aberdeen plc | 19,333 | $1.16M | 0.00% | −758−3.8% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 19,794 | $1.19M | 0.12% | −2,025−9.3% | Reduced |
| Moors & Cabot, Inc. | 19,871 | $1.20M | 0.08% | +400+2.1% | Added |
| DnB Asset Management AS | 19,906 | $1.20M | 0.01% | +3,804+23.6% | Added |
| Canada Pension Plan Investment Board | 20,000 | $1.20M | 0.00% | −4,600−18.7% | Reduced |
| Captrust Financial Advisors | 20,340 | $1.23M | 0.00% | −614−2.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 20,370 | $1.23M | 0.01% | −28,603−58.4% | Reduced |
| Pensionfund Sabic | 20,500 | $1.24M | 0.43% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 20,800 | $1.25M | 0.05% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 20,973 | $1.26M | 0.06% | +16,768+398.8% | Added |
| Davenport & Co LLC | 21,040 | $1.27M | 0.01% | −50.0% | Reduced |
| Neuberger Berman Group LLC | 21,189 | $1.28M | 0.00% | +1,295+6.5% | Added |
| Edgestream Partners, L.P. | 21,469 | $1.29M | 0.10% | +21,469 | New |
| Dark Forest Capital Management LP | 21,975 | $1.32M | 0.11% | +394+1.8% | Added |
| Northwestern Mutual Investment Management Company, LLC | 22,309 | $1.34M | 0.04% | −206−0.9% | Reduced |
| IFM Investors Pty Ltd | 22,353 | $1.35M | 0.02% | +1,992+9.8% | Added |
| Ameritas Investment Partners, Inc. | 22,560 | $1.36M | 0.05% | −2,740−10.8% | Reduced |
| Oliver Luxxe Assets LLC | 22,570 | $1.36M | 0.35% | 00.0% | Unchanged |
| Schechter Investment Advisors, LLC | 22,761 | $1.37M | 0.13% | +978+4.5% | Added |
| Trexquant Investment LP | 22,823 | $1.37M | 0.03% | −64,385−73.8% | Reduced |
| Aurora Investment Counsel | 23,131 | $1.39M | 0.92% | −406−1.7% | Reduced |
| South Dakota Investment Council | 23,229 | $1.40M | 0.03% | −14,000−37.6% | Reduced |
| Linden Thomas Advisory Services, LLC | 23,440 | $1.41M | 0.31% | +23,440 | New |
| Toroso Investments, LLC | 23,878 | $1.44M | 0.04% | +1,255+5.5% | Added |
| National Bank of Canada | 24,347 | $1.44M | 0.00% | +23,981+6,552.2% | Added |
| Investment Management Corp of Ontario | 25,347 | $1.53M | 0.06% | +15,689+162.4% | Added |
| Raymond James Financial Services Advisors, Inc. | 25,349 | $1.53M | 0.00% | −685−2.6% | Reduced |
| Ontario Teachers Pension Plan Board | 25,523 | $1.54M | 0.02% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 25,900 | $1.56M | 0.01% | +3,900+17.7% | Added |
| Illinois Municipal Retirement Fund | 26,089 | $1.57M | 0.03% | 00.0% | Unchanged |
| CWM Advisors, LLC | 26,179 | $1.58M | 0.20% | −1,803−6.4% | Reduced |
| Smithbridge Asset Management Inc | 26,201 | $1.58M | 0.39% | 00.0% | Unchanged |
| State of Michigan Retirement System | 26,224 | $1.58M | 0.01% | −1,400−5.1% | Reduced |
| Redwood Investment Management, LLC | 26,357 | $1.59M | 0.14% | −1,352−4.9% | Reduced |
| Graham Capital Management, L.P. | 27,037 | $1.63M | 0.05% | +10,407+62.6% | Added |
| HRT Financial LP | 27,074 | $1.63M | 0.02% | −16,781−38.3% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 27,157 | $1.64M | 0.01% | −264−1.0% | Reduced |
| Desjardins Global Asset Management Inc. | 27,246 | $1.64M | 0.18% | +1,487+5.8% | Added |
| Bright Rock Capital Management, LLC | 27,600 | $1.66M | 0.41% | 00.0% | Unchanged |
| Nomura Asset Management Co Ltd | 27,631 | $1.66M | 0.01% | −820−2.9% | Reduced |
| IFG Advisory, LLC | 27,884 | $1.68M | 0.14% | +46+0.2% | Added |
| Louisiana State Employees Retirement System | 28,500 | $1.72M | 0.04% | −1,100−3.7% | Reduced |
| State of Tennessee, Treasury Department | 29,000 | $1.75M | 0.01% | −24,175−45.5% | Reduced |
| Procyon Private Wealth Partners, LLC | 29,171 | $1.76M | 0.18% | +13,837+90.2% | Added |
| Vident Advisory, LLC | 29,226 | $1.76M | 0.05% | +29,226 | New |
| Arizona State Retirement System | 30,914 | $1.86M | 0.02% | −232−0.7% | Reduced |
| Capital Fund Management S.A. | 31,352 | $1.89M | 0.03% | +31,352 | New |
| Cipher Capital LP | 32,004 | $1.93M | 1.37% | +32,004 | New |
| Oregon Public Employees Retirement Fund | 34,594 | $2.08M | 0.03% | −4,100−10.6% | Reduced |
| Atria Investments LLC | 34,736 | $2.09M | 0.04% | +691+2.0% | Added |
| TownSquare Capital, LLC | 34,752 | $2.09M | 0.04% | +2,100+6.4% | Added |
| Teachers Retirement System of the State of Kentucky | 35,044 | $2.11M | 0.02% | +16,695+91.0% | Added |
| NJ State Employees Deferred Compensation Plan | 35,400 | $2.13M | 0.32% | 00.0% | Unchanged |
| Lido Advisors, LLC | 35,621 | $2.15M | 0.02% | +2,630+8.0% | Added |
| US Bancorp | 35,894 | $2.16M | 0.00% | +34,168+1,979.6% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 37,385 | $2.25M | 0.01% | +13,684+57.7% | Added |