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, Q1 2024
Institutional positions in SEI Investments Co as of Mar 31, 2024. 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
- 475
- −10 vs. Q4 2023
- Shares held
- 94.2M
- +1.49M (+1.6%) vs. Q4 2023
- Total value
- $6.77B
- +$876.6M (+14.9%) vs. Q4 2023
- New holders
- 47
- 141 more added
- Sold out
- 57
- 185 more reduced
6 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Raymond James Trust N.A. | 8,962 | $644.4K | 0.02% | +39+0.4% | Added |
| Wellington Shields & Co., LLC | 9,000 | $647.1K | 0.22% | 00.0% | Unchanged |
| Nilsine Partners, LLC | 9,009 | $647.7K | 0.09% | −2,744−23.3% | Reduced |
| Northwest Investment Counselors, LLC | 9,126 | $656.2K | 0.16% | −290−3.1% | Reduced |
| Susquehanna International Group, LLP | 9,143 | $657.4K | 0.00% | −5,612−38.0% | Reduced |
| Mackenzie Financial Corp | 9,159 | $658.5K | 0.00% | −563−5.8% | Reduced |
| NBC Securities, Inc. | 9,221 | $662.0K | 0.06% | −28−0.3% | Reduced |
| Mercer Global Advisors Inc | 7,931 | $664.0K | 0.00% | +509+6.9% | Added |
| Gulf International Bank (UK) Ltd | 9,309 | $669.0K | 0.02% | 00.0% | Unchanged |
| Prudential Financial Inc | 9,415 | $676.9K | 0.00% | −512−5.2% | Reduced |
| Patten & Patten Inc | 9,500 | $683.0K | 0.05% | 00.0% | Unchanged |
| Logan Capital Management Inc | 9,700 | $697.4K | 0.03% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 9,661 | $701.0K | 0.00% | −556−5.4% | Reduced |
| Patton Albertson Miller Group, LLC | 9,950 | $715.4K | 0.11% | 00.0% | Unchanged |
| Central Pacific Bank - Trust Division | 10,136 | $717.4K | 0.09% | +10,136 | New |
| RBF Capital, LLC | 10,000 | $719.0K | 0.04% | 00.0% | Unchanged |
| Ethic Inc. | 10,003 | $719.2K | 0.02% | +5,607+127.5% | Added |
| M&T Bank Corp | 10,194 | $732.9K | 0.00% | −860−7.8% | Reduced |
| Elo Mutual Pension Insurance Co | 10,220 | $735.0K | 0.02% | +10,220 | New |
| Brandes Investment Partners, LP | 10,260 | $737.7K | 0.01% | +4,191+69.1% | Added |
| Federated Hermes, Inc. | 10,595 | $761.8K | 0.00% | −667−5.9% | Reduced |
| Commerce Bank | 10,648 | $765.6K | 0.01% | +50+0.5% | Added |
| BancorpSouth Bank | 10,692 | $768.8K | 0.06% | +69+0.6% | Added |
| Worldquant Millennium Advisors LLC | 11,242 | $808.3K | 0.01% | −4,188−27.1% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 11,639 | $836.8K | 0.04% | −81−0.7% | Reduced |
| CI Private Wealth, LLC | 11,690 | $840.5K | 0.00% | −1,078−8.4% | Reduced |
| True Wealth Design, LLC | 12,509 | $899.4K | 0.22% | −117−0.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 12,800 | $920.3K | 0.00% | −54,410−81.0% | Reduced |
| Merit Financial Group, LLC | 13,900 | $935.0K | 0.02% | +5,285+61.3% | Added |
| Aviva PLC | 13,031 | $936.9K | 0.00% | −1,032−7.3% | Reduced |
| Railway Pension Investments Ltd | 13,200 | $949.1K | 0.01% | +13,200 | New |
| Valley National Advisers Inc | 13,318 | $957.0K | 0.14% | −1,194−8.2% | Reduced |
| British Columbia Investment Management Corp | 13,325 | $958.1K | 0.01% | +375+2.9% | Added |
| Los Angeles Capital Management LLC | 13,390 | $962.7K | 0.00% | +7,029+110.5% | Added |
| Nissay Asset Management Corp | 13,405 | $963.8K | 0.01% | +155+1.2% | Added |
| Brevan Howard Capital Management LP | 13,500 | $970.6K | 0.09% | +1,205+9.8% | Added |
| TD Waterhouse Canada Inc. | 12,869 | $971.5K | 0.01% | +556+4.5% | Added |
| Cerity Partners LLC | 13,939 | $1.00M | 0.00% | +3,200+29.8% | Added |
| Boston Financial Mangement LLC | 14,000 | $1.01M | 0.03% | −1,900−11.9% | Reduced |
| Gotham Asset Management, LLC | 14,555 | $1.05M | 0.02% | −22−0.2% | Reduced |
| Oppenheimer Asset Management Inc. | 14,834 | $1.07M | 0.02% | −1,366−8.4% | Reduced |
| Public Sector Pension Investment Board | 15,022 | $1.08M | 0.01% | 00.0% | Unchanged |
| 1832 Asset Management L.P. | 15,301 | $1.10M | 0.00% | −758−4.7% | Reduced |
| South Dakota Investment Council | 15,329 | $1.10M | 0.02% | −7,900−34.0% | Reduced |
| Rockefeller Capital Management L.P. | 15,385 | $1.11M | 0.00% | +15,385 | New |
| Wealth Enhancement Advisory Services, LLC | 15,719 | $1.13M | 0.00% | −744−4.5% | Reduced |
| Voya Investment Management LLC | 15,787 | $1.14M | 0.00% | −1,736−9.9% | Reduced |
| Quantinno Capital Management LP | 15,844 | $1.14M | 0.02% | +9,461+148.2% | Added |
| Gould Capital, LLC | 16,233 | $1.17M | 0.82% | +1,565+10.7% | Added |
| Baird Financial Group, Inc. | 16,696 | $1.20M | 0.00% | −786−4.5% | Reduced |
| TownSquare Capital, LLC | 16,814 | $1.21M | 0.02% | +1,176+7.5% | Added |
| Ashton Thomas Private Wealth, LLC | 16,818 | $1.21M | 0.07% | −103−0.6% | Reduced |
| Graham Capital Management, L.P. | 17,057 | $1.23M | 0.03% | +17,057 | New |
| Tredje AP-fonden | 17,128 | $1.23M | 0.01% | 00.0% | Unchanged |
| Donald L. Hagan, LLC | 17,259 | $1.24M | 0.66% | −535−3.0% | Reduced |
| Utah Retirement Systems | 17,474 | $1.26M | 0.01% | −100−0.6% | Reduced |
| Jane Street Group, LLC | 17,531 | $1.26M | 0.00% | −16,306−48.2% | Reduced |
| DnB Asset Management AS | 17,599 | $1.27M | 0.01% | −77−0.4% | Reduced |
| Lafayette Investments, Inc. | 17,652 | $1.27M | 0.29% | −235−1.3% | Reduced |
| Parallel Advisors, LLC | 17,806 | $1.28M | 0.03% | +6,690+60.2% | Added |
| Xponance, Inc. | 18,127 | $1.30M | 0.01% | +5,628+45.0% | Added |
| Stifel Financial Corp | 18,147 | $1.30M | 0.00% | +163+0.9% | Added |
| Pensionfund Sabic | 18,500 | $1.33M | 0.39% | −2,000−9.8% | Reduced |
| AlTi Global, Inc. | 18,521 | $1.33M | 0.04% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 18,748 | $1.35M | 0.01% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 18,973 | $1.36M | 0.00% | −891−4.5% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 19,485 | $1.40M | 0.01% | −18,000−48.0% | Reduced |
| JustInvest LLC | 19,519 | $1.40M | 0.03% | +3,369+20.9% | Added |
| Moors & Cabot, Inc. | 19,651 | $1.41M | 0.08% | −220−1.1% | Reduced |
| Mediolanum International Funds Ltd | 20,034 | $1.44M | 0.02% | +20,034 | New |
| IFM Investors Pty Ltd | 20,362 | $1.46M | 0.02% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 20,800 | $1.50M | 0.05% | 00.0% | Unchanged |
| Davenport & Co LLC | 21,036 | $1.51M | 0.01% | −40.0% | Reduced |
| Schechter Investment Advisors, LLC | 21,602 | $1.55M | 0.12% | −421−1.9% | Reduced |
| Schroder Investment Management Group | 21,835 | $1.57M | 0.00% | −149,511−87.3% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 22,053 | $1.59M | 0.01% | −14−0.1% | Reduced |
| Ameritas Investment Partners, Inc. | 22,081 | $1.59M | 0.05% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 22,237 | $1.60M | 0.04% | −12−0.1% | Reduced |
| Neuberger Berman Group LLC | 22,298 | $1.60M | 0.00% | +148+0.7% | Added |
| Oliver Luxxe Assets LLC | 22,570 | $1.62M | 0.34% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 22,919 | $1.65M | 0.02% | +18,342+400.7% | Added |
| Ontario Teachers Pension Plan Board | 24,017 | $1.73M | 0.02% | +1,587+7.1% | Added |
| Linden Thomas Advisory Services, LLC | 24,246 | $1.74M | 0.28% | +46+0.2% | Added |
| Capital Fund Management S.A. | 24,400 | $1.75M | 0.02% | −6,952−22.2% | Reduced |
| Oregon Public Employees Retirement Fund | 24,616 | $1.77M | 0.04% | −7,378−23.1% | Reduced |
| Aurora Investment Counsel | 24,623 | $1.77M | 1.01% | +595+2.5% | Added |
| Handelsbanken Fonder AB | 24,800 | $1.78M | 0.01% | 00.0% | Unchanged |
| TrimTabs Asset Management, LLC | 25,090 | $1.80M | 0.45% | +466+1.9% | Added |
| Stephens Inc | 25,607 | $1.84M | 0.03% | −6,783−20.9% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 25,907 | $1.86M | 0.00% | +146+0.6% | Added |
| Illinois Municipal Retirement Fund | 26,089 | $1.88M | 0.03% | 00.0% | Unchanged |
| Smithbridge Asset Management Inc | 26,201 | $1.88M | 0.39% | 00.0% | Unchanged |
| State of Michigan Retirement System | 26,624 | $1.91M | 0.01% | +500+1.9% | Added |
| Quest Partners LLC | 26,673 | $1.92M | 0.33% | −728−2.7% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 26,754 | $1.92M | 0.01% | +244+0.9% | Added |
| Pathstone Holdings, LLC | 26,891 | $1.93M | 0.01% | +8,172+43.7% | Added |
| Investment Management Corp of Ontario | 27,163 | $1.95M | 0.06% | −14,275−34.4% | Reduced |
| Bright Rock Capital Management, LLC | 27,600 | $1.98M | 0.41% | 00.0% | Unchanged |
| Nomura Asset Management Co Ltd | 27,606 | $1.98M | 0.01% | −2,544−8.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 28,151 | $2.02M | 0.01% | −11,034−28.2% | Reduced |