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 2023
Institutional positions in SEI Investments Co as of Mar 31, 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
- 444
- +3 vs. Q4 2022
- Shares held
- 92.9M
- −484.0K (−0.5%) vs. Q4 2022
- Total value
- $5.36B
- −$88.6M (−1.6%) vs. Q4 2022
- New holders
- 41
- 140 more added
- Sold out
- 38
- 176 more reduced
5 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 278,626 | $16.0M | 0.02% | −92,900−25.0% | Reduced |
| Retirement Systems of Alabama | 279,926 | $16.1M | 0.07% | −1,832−0.7% | Reduced |
| AustralianSuper Pty Ltd | 286,129 | $16.5M | 0.11% | −9,024−3.1% | Reduced |
| Nuveen Asset Management, LLC | 291,400 | $16.8M | 0.01% | −5,409−1.8% | Reduced |
| JLB & Associates Inc | 295,514 | $17.0M | 2.56% | +9,671+3.4% | Added |
| JPMorgan Chase & Co | 308,336 | $17.7M | 0.00% | +70,448+29.6% | Added |
| Citadel Advisors LLC | 310,911 | $17.9M | 0.02% | +100,523+47.8% | Added |
| Ceredex Value Advisors LLC | 313,948 | $18.1M | 0.28% | −18,180−5.5% | Reduced |
| Deutsche Bank AG | 317,069 | $18.2M | 0.01% | +153,364+93.7% | Added |
| Rhumbline Advisers | 327,460 | $18.8M | 0.02% | −4,289−1.3% | Reduced |
| Raymond James & Associates | 350,366 | $20.2M | 0.02% | +5,620+1.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 366,277 | $21.1M | 0.02% | +8,880+2.5% | Added |
| First Trust Advisors LP | 377,487 | $21.7M | 0.03% | −41,325−9.9% | Reduced |
| Amundi | 399,084 | $22.5M | 0.01% | +100,545+33.7% | Added |
| Principal Financial Group Inc | 413,189 | $23.8M | 0.02% | +1,718+0.4% | Added |
| American Capital Management Inc | 476,324 | $27.4M | 0.96% | −1,745−0.4% | Reduced |
| Norges Bank | 549,885 | $31.6M | 0.01% | +13,868+2.6% | Added |
| ProShare Advisors LLC | 551,510 | $31.7M | 0.10% | −132,530−19.4% | Reduced |
| American Century Companies Inc | 568,887 | $32.7M | 0.03% | +2,555+0.5% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 589,200 | $33.9M | 0.43% | 00.0% | Unchanged |
| Invesco Ltd. | 606,058 | $34.9M | 0.01% | +1,145+0.2% | Added |
| AQR Capital Management LLC | 629,359 | $35.7M | 0.08% | −43,026−6.4% | Reduced |
| Charles Schwab Investment Management Inc | 644,996 | $37.1M | 0.01% | −1,010−0.2% | Reduced |
| Brown Advisory Inc | 648,843 | $37.3M | 0.06% | +47,648+7.9% | Added |
| Ameriprise Financial Inc | 670,962 | $38.6M | 0.01% | +139,816+26.3% | Added |
| Royal Bank of Canada | 747,516 | $43.0M | 0.01% | −55,951−7.0% | Reduced |
| UBS Asset Management Americas Inc | 751,441 | $43.2M | 0.02% | −227,064−23.2% | Reduced |
| Natixis Advisors, L.P. | 754,021 | $43.4M | 0.15% | +2,502+0.3% | Added |
| Legal & General Group Plc | 956,285 | $55.0M | 0.02% | +101,332+11.9% | Added |
| Tandem Investment Advisors, Inc. | 1,090,479 | $62.8M | 3.01% | +98,224+9.9% | Added |
| Northern Trust Corp | 1,097,612 | $63.2M | 0.01% | +16,159+1.5% | Added |
| Dimensional Fund Advisors LP | 1,177,814 | $67.8M | 0.02% | +3,873+0.3% | Added |
| Boston Trust Walden Corp | 1,256,603 | $72.3M | 0.62% | −9,310−0.7% | Reduced |
| Bank of New York Mellon Corp | 1,283,677 | $73.9M | 0.02% | −38,016−2.9% | Reduced |
| Royce & Associates LP | 1,452,448 | $83.6M | 0.84% | −3410.0% | Reduced |
| Great West Life Assurance Co | 1,917,889 | $110.5M | 0.27% | −107,922−5.3% | Reduced |
| Geode Capital Management, LLC | 1,932,691 | $111.1M | 0.01% | −71,516−3.6% | Reduced |
| Bank of America Corp | 3,308,999 | $190.4M | 0.02% | −14,080−0.4% | Reduced |
| Beutel, Goodman & Co Ltd. | 3,948,438 | $227.2M | 1.34% | +92,137+2.4% | Added |
| State Street Corp | 6,119,484 | $352.2M | 0.02% | −586,595−8.7% | Reduced |
| Morgan Stanley | 6,250,636 | $359.7M | 0.04% | −268,946−4.1% | Reduced |
| Loomis Sayles & Co L P | 10,223,849 | $588.4M | 1.02% | −267,524−2.5% | Reduced |
| BlackRock Inc. | 11,770,720 | $677.4M | 0.02% | +311,552+2.7% | Added |
| Vanguard Group Inc | 12,282,902 | $706.9M | 0.02% | +35,075+0.3% | Added |
| River Road Asset Management, LLC | 0 | $0 | 0.00% | −125,393−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −61,267−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −37,849−100.0% | Sold out |
| Lido Advisors, LLC | 0 | $0 | 0.00% | −24,499−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −24,051−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −23,668−100.0% | Sold out |
| Moody Aldrich Partners LLC | 0 | $0 | 0.00% | −16,890−100.0% | Sold out |
| Westwood Holdings Group Inc. | 0 | $0 | 0.00% | −13,282−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −11,848−100.0% | Sold out |
| United Services Automobile Association | 0 | $0 | 0.00% | −11,256−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −9,700−100.0% | Sold out |
| Telos Capital Management, Inc. | 0 | $0 | 0.00% | −9,600−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −8,216−100.0% | Sold out |
| King Luther Capital Management Corp | 0 | $0 | 0.00% | −8,140−100.0% | Sold out |
| Grant/GrossMendelsohn, LLC | 0 | $0 | 0.00% | −5,700−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −5,435−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −4,856−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −4,760−100.0% | Sold out |
| Pathstone Family Office, LLC | 0 | $0 | 0.00% | −5,208−100.0% | Sold out |
| IFG Advisory, LLC | 0 | $0 | 0.00% | −3,651−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −2,404−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −1,906−100.0% | Sold out |
| One Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,447−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −1,145−100.0% | Sold out |
| Seldon Capital LP | 0 | $0 | 0.00% | −1,122−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −821−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −539−100.0% | Sold out |
| Comerica Securities,inc. | 0 | $0 | 0.00% | −372−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −289−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −170−100.0% | Sold out |
| Hexagon Capital Partners LLC | 0 | $0 | 0.00% | −91−100.0% | Sold out |
| McIlrath & Eck, LLC | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Vigilant Capital Management, LLC | 0 | $0 | 0.00% | −67−100.0% | Sold out |
| Benjamin F. Edwards & Company, Inc. | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Arlington Partners LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Stonebridge Capital Advisors LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Sutton Wealth Advisors Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Comerica Bank | – | – | – | – | Not filed |
| Zeke Capital Advisors, LLC | – | – | – | – | Not filed |
| Seeyond | – | – | – | – | Not filed |
| CoreCap Advisors, LLC | – | – | – | – | Not filed |
| Trustcore Financial Services, LLC | – | – | – | – | Not filed |