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, Q2 2021
Institutional positions in SEI Investments Co as of Jun 30, 2021. 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
- 440
- +1 vs. Q1 2021
- Shares held
- 97.6M
- −282.9K (−0.3%) vs. Q1 2021
- Total value
- $6.04B
- +$84.4M (+1.4%) vs. Q1 2021
- New holders
- 46
- 148 more added
- Sold out
- 45
- 150 more reduced
4 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Unigestion Holding SA | 19,032 | $1.18M | 0.04% | −477−2.4% | Reduced |
| Winton Group Ltd | 18,757 | $1.16M | 0.06% | +1,599+9.3% | Added |
| Stifel Financial Corp | 18,579 | $1.15M | 0.00% | +97+0.5% | Added |
| Teachers Retirement System of the State of Kentucky | 18,005 | $1.12M | 0.01% | 00.0% | Unchanged |
| Toroso Investments, LLC | 17,970 | $1.11M | 0.04% | +17,970 | New |
| Lafayette Investments, Inc. | 17,750 | $1.10M | 0.30% | +494+2.9% | Added |
| Moody Aldrich Partners LLC | 17,735 | $1.10M | 0.15% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 17,703 | $1.10M | 0.02% | +17,703 | New |
| AlphaCrest Capital Management LLC | 17,312 | $1.07M | 0.05% | +2,842+19.6% | Added |
| Meristem Family Wealth, LLC | 16,733 | $1.04M | 0.16% | −102−0.6% | Reduced |
| Boston Financial Mangement LLC | 15,900 | $985.0K | 0.04% | −19,130−54.6% | Reduced |
| Baird Financial Group, Inc. | 15,770 | $977.0K | 0.00% | +239+1.5% | Added |
| First Republic Investment Management, Inc. | 15,073 | $934.0K | 0.00% | −1,533−9.2% | Reduced |
| Salem Investment Counselors Inc | 14,608 | $905.0K | 0.05% | +14,608 | New |
| D. E. Shaw & Co., Inc. | 14,591 | $904.0K | 0.00% | −178,850−92.5% | Reduced |
| Prudential PLC | 14,320 | $887.0K | 0.01% | +6,056+73.3% | Added |
| Clearbridge Investments, LLC | 14,279 | $885.0K | 0.00% | +1,417+11.0% | Added |
| Alphasimplex Group, LLC | 14,238 | $882.0K | 0.44% | −3,512−19.8% | Reduced |
| DnB Asset Management AS | 14,207 | $880.4K | 0.01% | +709+5.3% | Added |
| IFM Investors Pty Ltd | 14,143 | $876.0K | 0.02% | −1,266−8.2% | Reduced |
| Aurora Investment Counsel | 14,050 | $871.0K | 0.61% | +3,284+30.5% | Added |
| Zeke Capital Advisors, LLC | 13,985 | $867.0K | 0.05% | +1,182+9.2% | Added |
| Xponance, Inc. | 13,861 | $859.0K | 0.02% | +1,320+10.5% | Added |
| American Century Companies Inc | 13,807 | $855.0K | 0.00% | +3,942+40.0% | Added |
| Marshall Wace North America L.P. | 13,734 | $851.0K | 0.00% | +13,734 | New |
| Nissay Asset Management Corp | 13,669 | $847.0K | 0.01% | −799−5.5% | Reduced |
| Pacer Advisors, Inc. | 12,551 | $778.0K | 0.01% | −150−1.2% | Reduced |
| HBK Sorce Advisory LLC | 12,311 | $763.0K | 0.04% | −35−0.3% | Reduced |
| Ontario Teachers Pension Plan Board | 12,191 | $755.0K | 0.01% | +6,692+121.7% | Added |
| Van Eck Associates Corp | 12,166 | $754.0K | 0.00% | +1,073+9.7% | Added |
| Wellington Shields & Co., LLC | 12,000 | $744.0K | 0.25% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 11,822 | $733.0K | 0.03% | 00.0% | Unchanged |
| Livingston Group Asset Management CO (operating as Southport Capital Management) | 11,800 | $731.0K | 0.18% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 11,510 | $713.0K | 0.00% | −3,910−25.4% | Reduced |
| M&T Bank Corp | 11,395 | $706.0K | 0.00% | +237+2.1% | Added |
| Baldwin Investment Management, LLC | 11,180 | $693.0K | 0.12% | −567−4.8% | Reduced |
| Northwest Investment Counselors, LLC | 11,059 | $685.0K | 0.19% | +10.0% | Added |
| BancorpSouth Bank | 10,959 | $679.0K | 0.10% | +272+2.5% | Added |
| Public Employees Retirement Association of Colorado | 10,923 | $677.0K | 0.00% | −7,778−41.6% | Reduced |
| Crossmark Global Holdings, Inc. | 10,930 | $677.0K | 0.02% | −10−0.1% | Reduced |
| Securian Asset Management, Inc | 10,893 | $675.0K | 0.01% | −348−3.1% | Reduced |
| DekaBank Deutsche Girozentrale | 10,848 | $669.0K | 0.00% | −1,407−11.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 10,761 | $667.0K | 0.00% | +10,761 | New |
| Marshall Financial Group LLC | 10,604 | $657.0K | 0.35% | +10,604 | New |
| Ashfield Capital Partners, LLC | 10,524 | $652.0K | 0.05% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,310 | $639.0K | 0.00% | +305+3.0% | Added |
| Standard Life Aberdeen plc | 10,259 | $636.0K | 0.00% | −2,100−17.0% | Reduced |
| Crawford Investment Counsel Inc | 10,240 | $635.0K | 0.01% | +3,630+54.9% | Added |
| Squarepoint Ops LLC | 10,152 | $629.0K | 0.00% | +10,152 | New |
| Hoover Financial Advisors, Inc. | 10,117 | $627.0K | 0.11% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 10,113 | $627.0K | 0.06% | +10,113 | New |
| Fisher Asset Management, LLC | 10,073 | $624.0K | 0.00% | +300+3.1% | Added |
| Commerce Bank | 10,041 | $622.0K | 0.00% | +52+0.5% | Added |
| RBF Capital, LLC | 10,000 | $620.0K | 0.03% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 10,016 | $620.0K | 0.03% | +8,600+607.3% | Added |
| Ergoteles LLC | 9,980 | $618.0K | 0.01% | +9,980 | New |
| Guggenheim Capital LLC | 9,750 | $604.0K | 0.00% | +9,750 | New |
| Logan Capital Management Inc | 9,700 | $601.0K | 0.03% | 00.0% | Unchanged |
| Telos Capital Management, Inc. | 9,600 | $595.0K | 0.08% | 00.0% | Unchanged |
| Baker Tilly Wealth Management, LLC | 9,479 | $587.0K | 0.09% | +954+11.2% | Added |
| Beaumont Financial Partners, LLC | 9,422 | $585.0K | 0.04% | +9,422 | New |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 9,424 | $583.0K | 0.06% | −1,384−12.8% | Reduced |
| Nordea Investment Management AB | 9,138 | $566.0K | 0.00% | +612+7.2% | Added |
| EagleClaw Capital Managment, LLC | 9,117 | $565.0K | 0.15% | −1,333−12.8% | Reduced |
| Westpac Banking Corp | 9,015 | $558.7K | 0.01% | 00.0% | Unchanged |
| Abbot Financial Management, Inc. | 8,900 | $552.0K | 0.24% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 8,867 | $549.5K | 0.03% | +2,773+45.5% | Added |
| B. Metzler seel. Sohn & Co. Holding AG | 8,851 | $548.0K | 0.01% | +1,046+13.4% | Added |
| FDx Advisors, Inc. | 8,694 | $539.0K | 0.02% | −85−1.0% | Reduced |
| Trexquant Investment LP | 8,213 | $509.0K | 0.04% | +1,177+16.7% | Added |
| HighTower Advisors, LLC | 8,021 | $496.0K | 0.00% | −5−0.1% | Reduced |
| Dividend Assets Capital, LLC | 7,992 | $495.0K | 0.10% | −1,480−15.6% | Reduced |
| Fayez Sarofim & Co | 7,900 | $490.0K | 0.00% | 00.0% | Unchanged |
| Haverford Trust Co | 7,870 | $488.0K | 0.01% | 00.0% | Unchanged |
| Banco Bilbao Vizcaya Argentaria, S.A. | 7,610 | $472.0K | 0.01% | +7,610 | New |
| Maryland State Retirement & Pension System | 7,488 | $460.0K | 0.02% | −1,529−17.0% | Reduced |
| Profund Advisors LLC | 7,362 | $456.0K | 0.02% | −92−1.2% | Reduced |
| Front Street Capital Management, Inc. | 7,211 | $447.0K | 0.08% | 00.0% | Unchanged |
| Legacy Wealth Asset Management, LLC | 7,129 | $442.0K | 0.20% | −111−1.5% | Reduced |
| Quantitative Investment Management, LLC | 7,042 | $436.0K | 0.04% | −1,119−13.7% | Reduced |
| Raymond James Trust N.A. | 7,040 | $436.0K | 0.01% | +700+11.0% | Added |
| Segall Bryant & Hamill, LLC | 6,756 | $418.0K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 6,667 | $413.0K | 0.00% | −360−5.1% | Reduced |
| Shelton Capital Management | 6,604 | $409.0K | 0.02% | −263−3.8% | Reduced |
| Allianz Asset Management GmbH | 6,522 | $404.0K | 0.00% | +848+14.9% | Added |
| GW Henssler & Associates Ltd | 6,508 | $403.0K | 0.03% | +6,508 | New |
| Daiwa Securities Group Inc. | 6,225 | $386.0K | 0.00% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 6,161 | $382.0K | 0.10% | +1,057+20.7% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 5,973 | $370.0K | 0.01% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 5,938 | $368.0K | 0.00% | +1,304+28.1% | Added |
| Point72 Hong Kong Ltd | 5,871 | $364.0K | 0.03% | −757−11.4% | Reduced |
| Meiji Yasuda Life Insurance Co | 5,790 | $359.0K | 0.01% | −135−2.3% | Reduced |
| Seeyond | 5,704 | $353.0K | 0.03% | +26+0.5% | Added |
| Cetera Advisor Networks LLC | 5,595 | $347.0K | 0.00% | +115+2.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 5,548 | $344.0K | 0.09% | +5,548 | New |
| Diversified Trust Co | 5,491 | $340.0K | 0.01% | +5,491 | New |
| Investment House LLC | 5,432 | $336.0K | 0.02% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 5,418 | $336.0K | 0.00% | +7+0.1% | Added |
| Leavell Investment Management, Inc. | 5,500 | $335.0K | 0.03% | 00.0% | Unchanged |
| World Asset Management Inc | 5,190 | $322.0K | 0.03% | −246−4.5% | Reduced |