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, Q3 2021
Institutional positions in SEI Investments Co as of Sep 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
- 446
- +12 vs. Q2 2021
- Shares held
- 96.7M
- −835.6K (−0.9%) vs. Q2 2021
- Total value
- $5.73B
- −$308.3M (−5.1%) vs. Q2 2021
- New holders
- 42
- 138 more added
- Sold out
- 30
- 160 more reduced
6 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Korea Investment CORP | 20,800 | $1.23M | 0.00% | −15,100−42.1% | Reduced |
| Globeflex Capital L P | 20,571 | $1.22M | 0.27% | 00.0% | Unchanged |
| Unigestion Holding SA | 20,498 | $1.22M | 0.05% | +1,466+7.7% | Added |
| Tiedemann Advisors, LLC | 20,022 | $1.19M | 0.06% | 00.0% | Unchanged |
| Prudential PLC | 19,859 | $1.18M | 0.02% | +5,539+38.7% | Added |
| Metropolitan Life Insurance Co | 19,594 | $1.16M | 0.02% | −2,617−11.8% | Reduced |
| Jane Street Group, LLC | 19,574 | $1.16M | 0.00% | −17,633−47.4% | Reduced |
| Utah Retirement Systems | 19,574 | $1.16M | 0.02% | −1,300−6.2% | Reduced |
| Moors & Cabot, Inc. | 19,546 | $1.16M | 0.07% | 00.0% | Unchanged |
| Lafayette Investments, Inc. | 19,449 | $1.15M | 0.31% | +1,699+9.6% | Added |
| Stifel Financial Corp | 19,188 | $1.14M | 0.00% | +609+3.3% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 19,157 | $1.14M | 0.00% | −19,140−50.0% | Reduced |
| Federated Hermes, Inc. | 18,995 | $1.13M | 0.00% | −4,129−17.9% | Reduced |
| Westwood Holdings Group Inc. | 17,969 | $1.07M | 0.01% | −1,436−7.4% | Reduced |
| Cypress Capital, LLC | 17,964 | $1.06M | 0.14% | +17,964 | New |
| Northwestern Mutual Investment Management Company, LLC | 17,712 | $1.05M | 0.02% | −2,029−10.3% | Reduced |
| Ontario Teachers Pension Plan Board | 17,069 | $1.01M | 0.00% | +4,878+40.0% | Added |
| Meristem Family Wealth, LLC | 16,883 | $1.00M | 0.10% | +150+0.9% | Added |
| Creative Planning | 16,801 | $996.0K | 0.00% | +13,091+352.9% | Added |
| Baird Financial Group, Inc. | 16,570 | $983.0K | 0.00% | +800+5.1% | Added |
| Susquehanna International Group, LLP | 16,458 | $976.0K | 0.00% | −6,055−26.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 16,305 | $967.0K | 0.01% | −1,700−9.4% | Reduced |
| First Republic Investment Management, Inc. | 16,245 | $963.0K | 0.00% | +1,172+7.8% | Added |
| American Century Companies Inc | 16,121 | $956.0K | 0.00% | +2,314+16.8% | Added |
| Boston Financial Mangement LLC | 15,900 | $943.0K | 0.04% | 00.0% | Unchanged |
| Kingsview Wealth Management, LLC | 15,404 | $913.0K | 0.04% | +15,404 | New |
| DnB Asset Management AS | 15,355 | $910.6K | 0.01% | +1,148+8.1% | Added |
| Salem Investment Counselors Inc | 14,608 | $866.0K | 0.05% | 00.0% | Unchanged |
| Aurora Investment Counsel | 14,195 | $842.0K | 0.59% | +145+1.0% | Added |
| IFM Investors Pty Ltd | 14,143 | $839.0K | 0.02% | 00.0% | Unchanged |
| Nissay Asset Management Corp | 14,028 | $832.0K | 0.01% | +359+2.6% | Added |
| Zeke Capital Advisors, LLC | 13,995 | $830.0K | 0.05% | +10+0.1% | Added |
| Guggenheim Capital LLC | 13,855 | $822.0K | 0.00% | +4,105+42.1% | Added |
| Van Eck Associates Corp | 13,310 | $789.0K | 0.00% | +1,144+9.4% | Added |
| Mackenzie Financial Corp | 12,391 | $735.0K | 0.00% | +881+7.7% | Added |
| Xponance, Inc. | 12,165 | $721.0K | 0.01% | −1,696−12.2% | Reduced |
| Winton Group Ltd | 12,021 | $713.0K | 0.04% | −6,736−35.9% | Reduced |
| Wellington Shields & Co., LLC | 12,000 | $712.0K | 0.25% | 00.0% | Unchanged |
| Baker Tilly Wealth Management, LLC | 11,895 | $705.0K | 0.09% | +2,416+25.5% | Added |
| Marshall Financial Group LLC | 11,847 | $703.0K | 0.36% | +1,243+11.7% | Added |
| Illinois Municipal Retirement Fund | 11,822 | $701.0K | 0.03% | 00.0% | Unchanged |
| Patton Albertson Miller Group, LLC | 11,800 | $700.0K | 0.13% | +11,800 | New |
| BancorpSouth Bank | 11,789 | $699.0K | 0.10% | +830+7.6% | Added |
| Alpha Paradigm Partners, LLC | 11,750 | $697.0K | 0.28% | +11,750 | New |
| Two Sigma Advisers, LP | 11,600 | $688.0K | 0.00% | +11,600 | New |
| M&T Bank Corp | 11,549 | $685.0K | 0.00% | +154+1.4% | Added |
| Advisor Group Holdings, Inc. | 11,240 | $668.0K | 0.00% | +930+9.0% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 11,259 | $668.0K | 0.01% | +8,621+326.8% | Added |
| DekaBank Deutsche Girozentrale | 11,038 | $665.0K | 0.00% | +190+1.8% | Added |
| Occudo Quantitative Strategies LP | 11,178 | $663.0K | 0.08% | +11,178 | New |
| Commerce Bank | 11,146 | $661.0K | 0.00% | +1,105+11.0% | Added |
| Baldwin Investment Management, LLC | 11,046 | $655.0K | 0.11% | −134−1.2% | Reduced |
| Public Employees Retirement Association of Colorado | 10,923 | $648.0K | 0.00% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 10,830 | $642.0K | 0.02% | −100−0.9% | Reduced |
| Northwest Investment Counselors, LLC | 10,789 | $640.0K | 0.18% | −270−2.4% | Reduced |
| EagleClaw Capital Managment, LLC | 10,717 | $637.0K | 0.16% | +1,600+17.5% | Added |
| Pacer Advisors, Inc. | 10,601 | $629.0K | 0.01% | −1,950−15.5% | Reduced |
| Crawford Investment Counsel Inc | 10,120 | $600.0K | 0.01% | −120−1.2% | Reduced |
| Fisher Asset Management, LLC | 10,033 | $595.0K | 0.00% | −40−0.4% | Reduced |
| Banque Cantonale Vaudoise | 10,016 | $594.0K | 0.03% | 00.0% | Unchanged |
| RBF Capital, LLC | 10,000 | $593.0K | 0.03% | 00.0% | Unchanged |
| Ashfield Capital Partners, LLC | 9,964 | $591.0K | 0.04% | −560−5.3% | Reduced |
| Polar Asset Management Partners Inc. | 9,887 | $586.0K | 0.01% | +9,887 | New |
| Logan Capital Management Inc | 9,700 | $575.0K | 0.03% | 00.0% | Unchanged |
| Hillsdale Investment Management Inc. | 9,650 | $573.0K | 0.04% | +9,500+6,333.3% | Added |
| Securian Asset Management, Inc | 9,615 | $570.0K | 0.01% | −1,278−11.7% | Reduced |
| Telos Capital Management, Inc. | 9,600 | $569.0K | 0.08% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 9,424 | $558.0K | 0.05% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 9,340 | $554.0K | 0.00% | −919−9.0% | Reduced |
| Nordea Investment Management AB | 9,138 | $553.0K | 0.00% | 00.0% | Unchanged |
| Westpac Banking Corp | 9,015 | $534.6K | 0.01% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 8,982 | $532.6K | 0.03% | +115+1.3% | Added |
| Abbot Financial Management, Inc. | 8,900 | $528.0K | 0.24% | 00.0% | Unchanged |
| FDx Advisors, Inc. | 8,581 | $509.0K | 0.02% | −113−1.3% | Reduced |
| Beaumont Financial Partners, LLC | 8,290 | $492.0K | 0.04% | −1,132−12.0% | Reduced |
| Engineers Gate Manager LP | 8,225 | $488.0K | 0.03% | +8,225 | New |
| Fayez Sarofim & Co | 7,900 | $468.0K | 0.00% | 00.0% | Unchanged |
| Haverford Trust Co | 7,870 | $467.0K | 0.01% | 00.0% | Unchanged |
| B. Metzler seel. Sohn & Co. Holding AG | 7,775 | $461.0K | 0.01% | −1,076−12.2% | Reduced |
| HighTower Advisors, LLC | 7,783 | $460.0K | 0.00% | −238−3.0% | Reduced |
| Raymond James Trust N.A. | 7,710 | $457.0K | 0.02% | +670+9.5% | Added |
| Maryland State Retirement & Pension System | 7,488 | $453.0K | 0.01% | 00.0% | Unchanged |
| Front Street Capital Management, Inc. | 7,211 | $428.0K | 0.08% | 00.0% | Unchanged |
| E. Ohman J:or Asset Management AB | 7,200 | $427.0K | 0.01% | +7,200 | New |
| Legacy Wealth Asset Management, LLC | 7,101 | $421.0K | 0.19% | −28−0.4% | Reduced |
| Dividend Assets Capital, LLC | 7,091 | $420.0K | 0.08% | −901−11.3% | Reduced |
| Segall Bryant & Hamill, LLC | 6,756 | $400.0K | 0.00% | 00.0% | Unchanged |
| Shelton Capital Management | 6,604 | $392.0K | 0.02% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 6,225 | $369.0K | 0.00% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 6,161 | $365.0K | 0.09% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 5,948 | $353.0K | 0.02% | +1,658+38.6% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 5,929 | $351.0K | 0.01% | −44−0.7% | Reduced |
| Trexquant Investment LP | 5,873 | $348.0K | 0.03% | −2,340−28.5% | Reduced |
| Profund Advisors LLC | 5,744 | $341.0K | 0.01% | −1,618−22.0% | Reduced |
| CIBC Asset Management Inc | 5,737 | $340.0K | 0.00% | +319+5.9% | Added |
| Mercer Global Advisors Inc | 5,716 | $339.0K | 0.00% | −222−3.7% | Reduced |
| Dynamic Technology Lab Private Ltd | 5,640 | $334.0K | 0.04% | −4,473−44.2% | Reduced |
| Seeyond | 5,646 | $334.0K | 0.03% | −58−1.0% | Reduced |
| Public Sector Pension Investment Board | 5,560 | $330.0K | 0.00% | +480+9.4% | Added |
| Hennion & Walsh Asset Management, Inc. | 5,512 | $327.0K | 0.02% | +413+8.1% | Added |