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, Q4 2021
Institutional positions in SEI Investments Co as of Dec 31, 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
- 472
- +30 vs. Q3 2021
- Shares held
- 97.5M
- +862.3K (+0.9%) vs. Q3 2021
- Total value
- $5.94B
- +$212.5M (+3.7%) vs. Q3 2021
- New holders
- 68
- 142 more added
- Sold out
- 38
- 160 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AustralianSuper Pty Ltd | 172,573 | $10.9M | 0.06% | −77,271−30.9% | Reduced |
| American International Group, Inc. | 179,242 | $10.9M | 0.05% | −5,424−2.9% | Reduced |
| KBC Group NV | 179,542 | $10.9M | 0.04% | +115,405+179.9% | Added |
| Hahn Capital Management LLC | 182,162 | $11.1M | 2.08% | −8,519−4.5% | Reduced |
| Qube Research & Technologies Ltd | 186,601 | $11.4M | 0.09% | +186,601 | New |
| Credit Suisse AG | 186,994 | $11.4M | 0.01% | +24,188+14.9% | Added |
| Victory Capital Management Inc | 191,183 | $11.7M | 0.01% | −14,676−7.1% | Reduced |
| Alliancebernstein L.P. | 196,622 | $12.0M | 0.00% | +21,499+12.3% | Added |
| California State Teachers Retirement System | 198,334 | $12.1M | 0.01% | +5,191+2.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 199,161 | $12.1M | 0.06% | −4,439−2.2% | Reduced |
| HSBC Holdings PLC | 199,942 | $12.2M | 0.01% | +1,414+0.7% | Added |
| FMR LLC | 202,266 | $12.3M | 0.00% | +17,870+9.7% | Added |
| Royal Bank of Canada | 202,698 | $12.4M | 0.00% | +42,929+26.9% | Added |
| Truist Financial Corp | 204,323 | $12.5M | 0.02% | −9,526−4.5% | Reduced |
| Wells Fargo & Company | 208,027 | $12.7M | 0.00% | −78,830−27.5% | Reduced |
| Caisse de Depot Et Placement du Quebec | 215,652 | $13.1M | 0.03% | +66,481+44.6% | Added |
| Envestnet Asset Management Inc | 220,491 | $13.4M | 0.01% | +1,937+0.9% | Added |
| Crestwood Advisors Group LLC | 223,353 | $13.6M | 0.35% | −27,641−11.0% | Reduced |
| Davis R M Inc | 227,296 | $13.9M | 0.31% | −7,929−3.4% | Reduced |
| California Public Employees Retirement System | 227,939 | $13.9M | 0.01% | −14,092−5.8% | Reduced |
| Thrivent Financial for Lutherans | 231,401 | $14.1M | 0.03% | −16,260−6.6% | Reduced |
| Hendershot Investments Inc. | 251,255 | $15.3M | 2.33% | +6,858+2.8% | Added |
| New York State Common Retirement Fund | 255,016 | $15.5M | 0.02% | −29,617−10.4% | Reduced |
| JPMorgan Chase & Co | 263,220 | $16.0M | 0.00% | +66,382+33.7% | Added |
| Los Angeles Capital Management LLC | 265,129 | $16.2M | 0.06% | −6,078−2.2% | Reduced |
| Reinhart Partners, Inc. | 279,622 | $17.0M | 0.82% | −15,698−5.3% | Reduced |
| Morgan Stanley | 284,407 | $17.3M | 0.00% | +22,243+8.5% | Added |
| JLB & Associates Inc | 290,218 | $17.7M | 2.51% | +3,498+1.2% | Added |
| Eaton Vance Management | 290,791 | $17.7M | 0.02% | +182+0.1% | Added |
| Retirement Systems of Alabama | 303,184 | $18.5M | 0.06% | −430.0% | Reduced |
| UBS Group AG | 305,553 | $18.6M | 0.01% | +5,822+1.9% | Added |
| Nuveen Asset Management, LLC | 305,651 | $18.6M | 0.01% | −29,936−8.9% | Reduced |
| Rhumbline Advisers | 312,412 | $19.0M | 0.02% | +1,079+0.3% | Added |
| Raymond James & Associates | 313,928 | $19.1M | 0.02% | +18,034+6.1% | Added |
| Goodnow Investment Group, LLC | 330,915 | $20.2M | 1.70% | −3,060−0.9% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 341,307 | $20.8M | 0.01% | −13,061−3.7% | Reduced |
| ProShare Advisors LLC | 343,075 | $20.9M | 0.04% | +8,395+2.5% | Added |
| PGGM Investments | 346,225 | $21.1M | 0.11% | 00.0% | Unchanged |
| Man Group plc | 363,509 | $22.2M | 0.07% | +82,721+29.5% | Added |
| Principal Financial Group Inc | 376,745 | $23.0M | 0.01% | −11,379−2.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 419,300 | $25.6M | 0.03% | −62,025−12.9% | Reduced |
| Parametric Portfolio Associates LLC | 424,307 | $25.9M | 0.01% | +16,816+4.1% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 431,200 | $26.3M | 0.30% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 506,513 | $30.9M | 0.01% | −154,508−23.4% | Reduced |
| Invesco Ltd. | 507,170 | $30.9M | 0.01% | −22,802−4.3% | Reduced |
| Charles Schwab Investment Management Inc | 584,977 | $35.6M | 0.01% | +8,799+1.5% | Added |
| Brown Advisory Inc | 616,820 | $37.6M | 0.05% | +351,420+132.4% | Added |
| AQR Capital Management LLC | 705,696 | $43.0M | 0.08% | +180,851+34.5% | Added |
| Goldman Sachs Group Inc | 754,533 | $46.0M | 0.01% | +126,519+20.1% | Added |
| American Capital Management Inc | 754,938 | $46.0M | 1.18% | −1,831−0.2% | Reduced |
| Natixis Advisors, L.P. | 851,054 | $51.9M | 0.20% | −370,061−30.3% | Reduced |
| Legal & General Group Plc | 874,684 | $53.3M | 0.02% | −13,783−1.6% | Reduced |
| Norges Bank | 966,499 | $58.9M | 0.01% | −4,442−0.5% | Reduced |
| Boston Trust Walden Corp | 995,637 | $60.7M | 0.49% | +106,556+12.0% | Added |
| Millennium Management LLC | 995,701 | $60.7M | 0.07% | +222,142+28.7% | Added |
| Ameriprise Financial Inc | 1,063,234 | $64.8M | 0.02% | −30,847−2.8% | Reduced |
| Dimensional Fund Advisors LP | 1,083,692 | $66.0M | 0.02% | +4,928+0.5% | Added |
| Schroder Investment Management Group | 1,094,715 | $66.7M | 0.09% | −55,696−4.8% | Reduced |
| Northern Trust Corp | 1,175,493 | $71.6M | 0.01% | −26,438−2.2% | Reduced |
| Bank of New York Mellon Corp | 1,197,543 | $73.0M | 0.01% | +2,255+0.2% | Added |
| First Trust Advisors LP | 1,376,254 | $83.9M | 0.08% | +1,042,033+311.8% | Added |
| Royce & Associates LP | 1,379,308 | $84.1M | 0.63% | −22,061−1.6% | Reduced |
| Geode Capital Management, LLC | 1,943,809 | $118.4M | 0.01% | +141,772+7.9% | Added |
| Great West Life Assurance Co | 1,979,764 | $120.3M | 0.25% | +408,329+26.0% | Added |
| Beutel, Goodman & Co Ltd. | 2,824,422 | $172.1M | 0.98% | +13,335+0.5% | Added |
| Bank of America Corp | 3,694,917 | $225.2M | 0.02% | −149,327−3.9% | Reduced |
| State Street Corp | 5,690,615 | $349.0M | 0.02% | +35,910+0.6% | Added |
| Atlanta Capital Management Co L L C | 6,319,042 | $385.1M | 1.30% | −74,728−1.2% | Reduced |
| BlackRock Inc. | 11,385,537 | $693.8M | 0.02% | +6,440+0.1% | Added |
| Vanguard Group Inc | 12,065,855 | $735.3M | 0.02% | +107,711+0.9% | Added |
| Loomis Sayles & Co L P | 13,171,337 | $802.7M | 0.97% | −711,101−5.1% | Reduced |
| Longfellow Investment Management Co LLC | 5 | – | – | 00.0% | Unchanged |
| Sunriver Management LLC | 0 | $0 | 0.00% | −265,162−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −175,000−100.0% | Sold out |
| Prana Capital Management, LP | 0 | $0 | 0.00% | −157,717−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −154,537−100.0% | Sold out |
| AMP Capital Investors Ltd | 0 | $0 | 0.00% | −115,651−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −88,500−100.0% | Sold out |
| Redwood Investment Management, LLC | 0 | $0 | 0.00% | −67,571−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −61,135−100.0% | Sold out |
| Mandatum Life Insurance Co Ltd | 0 | $0 | 0.00% | −54,859−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −53,566−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −24,000−100.0% | Sold out |
| MUFG Securities EMEA plc | 0 | $0 | 0.00% | −23,200−100.0% | Sold out |
| Kingsview Wealth Management, LLC | 0 | $0 | 0.00% | −15,404−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | 0 | $0 | 0.00% | −11,750−100.0% | Sold out |
| Maverick Capital LtdSuperinvestorMaverick Capital | 0 | $0 | 0.00% | −11,259−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −9,887−100.0% | Sold out |
| E. Ohman J:or Asset Management AB | 0 | $0 | 0.00% | −7,200−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −5,560−100.0% | Sold out |
| Pendal Group Limited | 0 | $0 | 0.00% | −5,124−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,968−100.0% | Sold out |
| Kore Private Wealth LLC | 0 | $0 | 0.00% | −3,661−100.0% | Sold out |
| Brewin Dolphin Ltd | 0 | $0 | 0.00% | −3,400−100.0% | Sold out |
| Pinz Capital Management, LP | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −1,161−100.0% | Sold out |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0 | $0 | 0.00% | −1,134−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −1,095−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −604−100.0% | Sold out |
| Gerber Kawasaki Wealth & Investment Management | 0 | $0 | 0.00% | −433−100.0% | Sold out |