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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 12,282,902 | $706.9M | 0.02% | +35,075+0.3% | Added |
| BlackRock Inc. | 11,770,720 | $677.4M | 0.02% | +311,552+2.7% | Added |
| Loomis Sayles & Co L P | 10,223,849 | $588.4M | 1.02% | −267,524−2.5% | Reduced |
| Morgan Stanley | 6,250,636 | $359.7M | 0.04% | −268,946−4.1% | Reduced |
| State Street Corp | 6,119,484 | $352.2M | 0.02% | −586,595−8.7% | Reduced |
| Beutel, Goodman & Co Ltd. | 3,948,438 | $227.2M | 1.34% | +92,137+2.4% | Added |
| Bank of America Corp | 3,308,999 | $190.4M | 0.02% | −14,080−0.4% | Reduced |
| Geode Capital Management, LLC | 1,932,691 | $111.1M | 0.01% | −71,516−3.6% | Reduced |
| Great West Life Assurance Co | 1,917,889 | $110.5M | 0.27% | −107,922−5.3% | Reduced |
| Royce & Associates LP | 1,452,448 | $83.6M | 0.84% | −3410.0% | Reduced |
| Bank of New York Mellon Corp | 1,283,677 | $73.9M | 0.02% | −38,016−2.9% | Reduced |
| Boston Trust Walden Corp | 1,256,603 | $72.3M | 0.62% | −9,310−0.7% | Reduced |
| Dimensional Fund Advisors LP | 1,177,814 | $67.8M | 0.02% | +3,873+0.3% | Added |
| Northern Trust Corp | 1,097,612 | $63.2M | 0.01% | +16,159+1.5% | Added |
| Tandem Investment Advisors, Inc. | 1,090,479 | $62.8M | 3.01% | +98,224+9.9% | Added |
| Legal & General Group Plc | 956,285 | $55.0M | 0.02% | +101,332+11.9% | Added |
| Natixis Advisors, L.P. | 754,021 | $43.4M | 0.15% | +2,502+0.3% | Added |
| UBS Asset Management Americas Inc | 751,441 | $43.2M | 0.02% | −227,064−23.2% | Reduced |
| Royal Bank of Canada | 747,516 | $43.0M | 0.01% | −55,951−7.0% | Reduced |
| Ameriprise Financial Inc | 670,962 | $38.6M | 0.01% | +139,816+26.3% | Added |
| Brown Advisory Inc | 648,843 | $37.3M | 0.06% | +47,648+7.9% | Added |
| Charles Schwab Investment Management Inc | 644,996 | $37.1M | 0.01% | −1,010−0.2% | Reduced |
| AQR Capital Management LLC | 629,359 | $35.7M | 0.08% | −43,026−6.4% | Reduced |
| Invesco Ltd. | 606,058 | $34.9M | 0.01% | +1,145+0.2% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 589,200 | $33.9M | 0.43% | 00.0% | Unchanged |
| American Century Companies Inc | 568,887 | $32.7M | 0.03% | +2,555+0.5% | Added |
| ProShare Advisors LLC | 551,510 | $31.7M | 0.10% | −132,530−19.4% | Reduced |
| Norges Bank | 549,885 | $31.6M | 0.01% | +13,868+2.6% | Added |
| American Capital Management Inc | 476,324 | $27.4M | 0.96% | −1,745−0.4% | Reduced |
| Principal Financial Group Inc | 413,189 | $23.8M | 0.02% | +1,718+0.4% | Added |
| Amundi | 399,084 | $22.5M | 0.01% | +100,545+33.7% | Added |
| First Trust Advisors LP | 377,487 | $21.7M | 0.03% | −41,325−9.9% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 366,277 | $21.1M | 0.02% | +8,880+2.5% | Added |
| Raymond James & Associates | 350,366 | $20.2M | 0.02% | +5,620+1.6% | Added |
| Rhumbline Advisers | 327,460 | $18.8M | 0.02% | −4,289−1.3% | Reduced |
| Deutsche Bank AG | 317,069 | $18.2M | 0.01% | +153,364+93.7% | Added |
| Ceredex Value Advisors LLC | 313,948 | $18.1M | 0.28% | −18,180−5.5% | Reduced |
| Citadel Advisors LLC | 310,911 | $17.9M | 0.02% | +100,523+47.8% | Added |
| JPMorgan Chase & Co | 308,336 | $17.7M | 0.00% | +70,448+29.6% | Added |
| JLB & Associates Inc | 295,514 | $17.0M | 2.56% | +9,671+3.4% | Added |
| Nuveen Asset Management, LLC | 291,400 | $16.8M | 0.01% | −5,409−1.8% | Reduced |
| AustralianSuper Pty Ltd | 286,129 | $16.5M | 0.11% | −9,024−3.1% | Reduced |
| Retirement Systems of Alabama | 279,926 | $16.1M | 0.07% | −1,832−0.7% | Reduced |
| Renaissance Technologies LLC | 278,626 | $16.0M | 0.02% | −92,900−25.0% | Reduced |
| Goldman Sachs Group Inc | 268,934 | $15.5M | 0.00% | −244,437−47.6% | Reduced |
| Teacher Retirement System of Texas | 258,634 | $14.9M | 0.10% | +48,042+22.8% | Added |
| New York State Common Retirement Fund | 255,262 | $14.7M | 0.02% | −3,025−1.2% | Reduced |
| Hendershot Investments Inc. | 239,200 | $13.8M | 2.31% | −5,369−2.2% | Reduced |
| HSBC Holdings PLC | 232,317 | $13.4M | 0.02% | −15,561−6.3% | Reduced |
| Man Group plc | – | $13.2M | 0.05% | – | – |
| Citigroup Inc | 225,887 | $13.0M | 0.02% | +15,985+7.6% | Added |
| Crestwood Advisors Group LLC | 223,353 | $12.9M | 0.43% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 216,310 | $12.4M | 0.01% | −1,090−0.5% | Reduced |
| FMR LLC | 213,405 | $12.3M | 0.00% | −8,070−3.6% | Reduced |
| TD Asset Management Inc | 206,321 | $11.9M | 0.01% | −10,778−5.0% | Reduced |
| Caisse de Depot Et Placement du Quebec | 204,431 | $11.8M | 0.03% | +152,342+292.5% | Added |
| Victory Capital Management Inc | 202,186 | $11.6M | 0.01% | −10,451−4.9% | Reduced |
| State of Alaska, Department of Revenue | 202,081 | $11.6M | 0.14% | −245−0.1% | Reduced |
| California Public Employees Retirement System | 198,398 | $11.4M | 0.01% | −42,489−17.6% | Reduced |
| PGGM Investments | 196,295 | $11.3M | 0.19% | −890−0.5% | Reduced |
| Jupiter Asset Management Ltd | 193,090 | $11.1M | 0.15% | +193,090 | New |
| Allspring Global Investments Holdings, LLC | 191,545 | $11.0M | 0.02% | +177,855+1,299.2% | Added |
| Leith Wheeler Investment Counsel Ltd. | 190,215 | $10.9M | 1.61% | +1,300+0.7% | Added |
| Schroder Investment Management Group | 185,468 | $10.7M | 0.02% | +902+0.5% | Added |
| California State Teachers Retirement System | 177,234 | $10.2M | 0.02% | −2,503−1.4% | Reduced |
| Truist Financial Corp | 169,942 | $9.78M | 0.02% | −10,736−5.9% | Reduced |
| American International Group, Inc. | 157,336 | $9.05M | 0.06% | −2,258−1.4% | Reduced |
| Alliancebernstein L.P. | 153,806 | $8.85M | 0.00% | −2,878−1.8% | Reduced |
| State Board of Administration of Florida Retirement System | 151,227 | $8.70M | 0.02% | +8,865+6.2% | Added |
| Credit Suisse AG | 145,933 | $8.40M | 0.01% | −1,028−0.7% | Reduced |
| Abn Amro Investment Solutions | 144,360 | $8.31M | 0.17% | +144,360 | New |
| KBC Group NV | 143,950 | $8.28M | 0.04% | −11,182−7.2% | Reduced |
| Barclays PLC | 135,523 | $7.80M | 0.01% | +42,382+45.5% | Added |
| New York State Teachers Retirement System | 134,887 | $7.76M | 0.02% | −1,235−0.9% | Reduced |
| Pictet Asset Management SA | 134,161 | $7.72M | 0.01% | +73,956+122.8% | Added |
| Hahn Capital Management LLC | 133,867 | $7.70M | 2.51% | −25,283−15.9% | Reduced |
| Interval Partners, LP | 127,014 | $7.31M | 0.41% | +117,315+1,209.6% | Added |
| Bank of Montreal | 125,267 | $7.22M | 0.00% | +21,047+20.2% | Added |
| State of Wisconsin Investment Board | 121,151 | $6.97M | 0.02% | +62,240+105.7% | Added |
| Parsec Financial Management, Inc. | 119,656 | $6.89M | 0.29% | −6,176−4.9% | Reduced |
| Vestcor Inc | 117,353 | $6.75M | 0.25% | +114,619+4,192.4% | Added |
| RSM US Wealth Management LLC | 115,853 | $6.67M | 0.24% | +530.0% | Added |
| Franklin Resources Inc | 115,852 | $6.67M | 0.00% | −8,341−6.7% | Reduced |
| Qube Research & Technologies Ltd | 112,413 | $6.47M | 0.04% | −17,322−13.4% | Reduced |
| Twinbeech Capital LP | 101,577 | $5.85M | 0.12% | +101,577 | New |
| Thrive Wealth Management, LLC | 101,259 | $5.83M | 1.49% | −2,558−2.5% | Reduced |
| Texas Permanent School Fund | 90,022 | $5.18M | 0.05% | +21,133+30.7% | Added |
| Andra AP-fonden | 89,700 | $5.16M | 0.13% | +14,700+19.6% | Added |
| Brandywine Global Investment Management, LLC | 89,541 | $5.15M | 0.04% | −4,259−4.5% | Reduced |
| Southernsun Asset Management, LLC | 86,983 | $5.01M | 0.57% | −724−0.8% | Reduced |
| Mutual of America Capital Management LLC | 82,059 | $4.72M | 0.06% | −2,131−2.5% | Reduced |
| Banco Santander, S.A. | 81,840 | $4.71M | 0.07% | −11,210−12.0% | Reduced |
| Manufacturers Life Insurance Company, The | 80,522 | $4.63M | 0.00% | −3,725−4.4% | Reduced |
| CWM, LLC | 77,957 | $4.49M | 0.03% | −1,083−1.4% | Reduced |
| Foyston, Gordon, & Payne Inc | 76,911 | $4.43M | 1.19% | −1,415−1.8% | Reduced |
| Meiji Yasuda Asset Management Co Ltd. | 76,697 | $4.41M | 0.23% | −18,559−19.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 73,835 | $4.25M | 0.01% | −734−1.0% | Reduced |
| BNP Paribas Arbitrage, SA | 73,627 | $4.24M | 0.01% | +8,446+13.0% | Added |
| Amalgamated Bank | 73,211 | $4.21M | 0.04% | −6,771−8.5% | Reduced |
| Court Place Advisors, LLC | 71,909 | $4.14M | 1.50% | −4,394−5.8% | Reduced |