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 2024
Institutional positions in SEI Investments Co as of Jun 30, 2024. 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
- 493
- +22 vs. Q1 2024
- Shares held
- 93.0M
- −926.0K (−1.0%) vs. Q1 2024
- Total value
- $6.02B
- −$732.1M (−10.8%) vs. Q1 2024
- New holders
- 56
- 179 more added
- Sold out
- 34
- 167 more reduced
4 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 11,838,103 | $765.8M | 0.01% | −5,4920.0% | Reduced |
| BlackRock Inc. | 11,493,443 | $743.5M | 0.02% | −221,137−1.9% | Reduced |
| Loomis Sayles & Co L P | 9,442,405 | $610.8M | 0.84% | +75,101+0.8% | Added |
| State Street Corp | 6,111,320 | $395.3M | 0.02% | +289,228+5.0% | Added |
| Morgan Stanley | 5,947,415 | $384.7M | 0.03% | −2,0440.0% | Reduced |
| Beutel, Goodman & Co Ltd. | 4,056,859 | $262.4M | 1.39% | +38,512+1.0% | Added |
| Bank of America Corp | 3,037,016 | $196.5M | 0.02% | −12,712−0.4% | Reduced |
| Invesco Ltd. | 2,395,105 | $154.9M | 0.03% | +23,684+1.0% | Added |
| Geode Capital Management, LLC | 2,219,726 | $143.4M | 0.01% | +118,850+5.7% | Added |
| Royce & Associates LP | 1,463,578 | $94.7M | 0.89% | −807−0.1% | Reduced |
| Dimensional Fund Advisors LP | 1,380,311 | $89.3M | 0.02% | +222,631+19.2% | Added |
| Boston Trust Walden Corp | 1,296,342 | $83.9M | 0.62% | −3,738−0.3% | Reduced |
| Bank of New York Mellon Corp | 1,186,439 | $76.8M | 0.01% | +36,810+3.2% | Added |
| Northern Trust Corp | 1,006,553 | $65.1M | 0.01% | +75,719+8.1% | Added |
| Citadel Advisors LLC | 912,849 | $59.1M | 0.06% | −171,281−15.8% | Reduced |
| First Trust Advisors LP | 896,716 | $58.0M | 0.06% | −156,649−14.9% | Reduced |
| Legal & General Group Plc | 875,879 | $56.7M | 0.02% | −16,912−1.9% | Reduced |
| Brown Advisory Inc | 840,954 | $54.4M | 0.07% | +142,228+20.4% | Added |
| Azora Capital LP | 819,875 | $53.0M | 3.03% | +199,093+32.1% | Added |
| Natixis Advisors, L.P. | 675,275 | $43.7M | 0.09% | −3,054−0.5% | Reduced |
| Charles Schwab Investment Management Inc | 667,500 | $43.2M | 0.01% | +15,105+2.3% | Added |
| UBS Asset Management Americas Inc | 535,611 | $34.6M | 0.01% | +124,889+30.4% | Added |
| Raymond James & Associates | 524,631 | $33.9M | 0.02% | +24,058+4.8% | Added |
| ProShare Advisors LLC | 465,011 | $30.1M | 0.08% | +2,698+0.6% | Added |
| JPMorgan Chase & Co | 447,092 | $28.9M | 0.00% | +10,707+2.5% | Added |
| Tandem Investment Advisors, Inc. | 433,078 | $28.0M | 1.11% | −288,192−40.0% | Reduced |
| Caisse de Depot Et Placement du Quebec | 413,639 | $26.8M | 0.06% | −114,814−21.7% | Reduced |
| Ameriprise Financial Inc | 405,072 | $26.2M | 0.01% | +27,973+7.4% | Added |
| Voloridge Investment Management, LLC | 393,594 | $25.5M | 0.09% | +220,027+126.8% | Added |
| KBC Group NV | 387,740 | $25.1M | 0.08% | +3,320+0.9% | Added |
| Envestnet Asset Management Inc | 381,372 | $24.7M | 0.01% | +4,656+1.2% | Added |
| AQR Capital Management LLC | 367,089 | $23.7M | 0.04% | +41,108+12.6% | Added |
| Royal Bank of Canada | 361,651 | $23.4M | 0.01% | −187,796−34.2% | Reduced |
| Acadian Asset Management LLC | 356,286 | $23.0M | 0.07% | −78,768−18.1% | Reduced |
| Deutsche Bank AG | 354,752 | $22.9M | 0.01% | −6,068−1.7% | Reduced |
| HSBC Holdings PLC | 347,063 | $22.5M | 0.01% | −32,545−8.6% | Reduced |
| Rhumbline Advisers | 344,928 | $22.3M | 0.02% | +553+0.2% | Added |
| Principal Financial Group Inc | 342,180 | $22.1M | 0.01% | −42,191−11.0% | Reduced |
| American Century Companies Inc | 311,459 | $20.1M | 0.01% | +21,632+7.5% | Added |
| American Capital Management Inc | 304,324 | $19.7M | 0.66% | −1,285−0.4% | Reduced |
| JLB & Associates Inc | 285,802 | $18.5M | 2.50% | −641−0.2% | Reduced |
| Retirement Systems of Alabama | 282,240 | $18.3M | 0.07% | −1,948−0.7% | Reduced |
| Franklin Resources Inc | 272,053 | $17.6M | 0.01% | +48,239+21.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 271,517 | $17.6M | 0.01% | −8,433−3.0% | Reduced |
| Amundi | 260,697 | $17.1M | 0.01% | −3,347−1.3% | Reduced |
| Goldman Sachs Group Inc | 261,763 | $16.9M | 0.00% | +40,662+18.4% | Added |
| Nuveen Asset Management, LLC | 256,880 | $16.6M | 0.00% | −13,405−5.0% | Reduced |
| Ophir Asset Management Pty Ltd | 254,623 | $16.5M | 2.92% | −160,632−38.7% | Reduced |
| FMR LLC | 253,089 | $16.4M | 0.00% | +27,961+12.4% | Added |
| New York State Common Retirement Fund | 244,854 | $15.8M | 0.02% | −850.0% | Reduced |
| Man Group plc | 226,149 | $14.6M | 0.04% | +37,949+20.2% | Added |
| Balyasny Asset Management LLC | 219,513 | $14.2M | 0.04% | +146,306+199.9% | Added |
| Leith Wheeler Investment Counsel Ltd. | 218,906 | $14.2M | 1.22% | +1,600+0.7% | Added |
| Thrivent Financial for Lutherans | 210,101 | $13.6M | 0.03% | −232,951−52.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 207,442 | $13.4M | 0.01% | −45,834−18.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 201,787 | $13.1M | 0.03% | +4,676+2.4% | Added |
| Interval Partners, LP | 200,230 | $13.0M | 0.38% | −804−0.4% | Reduced |
| State of Alaska, Department of Revenue | 198,835 | $12.9M | 0.14% | 00.0% | Unchanged |
| Citigroup Inc | 197,366 | $12.8M | 0.01% | −18,274−8.5% | Reduced |
| Renaissance Technologies LLC | 196,426 | $12.7M | 0.02% | −78,100−28.4% | Reduced |
| PGGM Investments | 194,510 | $12.6M | 0.18% | −842−0.4% | Reduced |
| Millennium Management LLC | 192,388 | $12.4M | 0.01% | −94,824−33.0% | Reduced |
| TD Asset Management Inc | 189,869 | $12.3M | 0.01% | +5,723+3.1% | Added |
| Vestcor Inc | 188,149 | $12.2M | 0.41% | 00.0% | Unchanged |
| Barclays PLC | 182,175 | $11.8M | 0.01% | −75,316−29.2% | Reduced |
| Prana Capital Management, LP | 177,527 | $11.5M | 0.55% | +10,036+6.0% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $11.2M | 0.11% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 166,493 | $10.8M | 0.06% | +5,358+3.3% | Added |
| California Public Employees Retirement System | 164,210 | $10.6M | 0.01% | −1,442−0.9% | Reduced |
| Danske Bank A/S | 161,348 | $10.4M | 0.04% | +4,940+3.2% | Added |
| Victory Capital Management Inc | 160,275 | $10.4M | 0.01% | +13,903+9.5% | Added |
| Alps Advisors Inc | 156,757 | $10.1M | 0.07% | +21,490+15.9% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 155,147 | $10.0M | 0.02% | +9,611+6.6% | Added |
| Korea Investment CORP | 151,875 | $9.82M | 0.02% | −20,251−11.8% | Reduced |
| Two Sigma Advisers, LP | 151,500 | $9.80M | 0.02% | −107,400−41.5% | Reduced |
| Qube Research & Technologies Ltd | 151,448 | $9.80M | 0.02% | −168,842−52.7% | Reduced |
| Allianz Asset Management GmbH | 150,052 | $9.71M | 0.02% | +34,554+29.9% | Added |
| Alliancebernstein L.P. | 148,946 | $9.64M | 0.00% | −16,001−9.7% | Reduced |
| California State Teachers Retirement System | 146,164 | $9.46M | 0.01% | −2,326−1.6% | Reduced |
| Norges Bank | 143,529 | $9.28M | 0.00% | −172,483−54.6% | Reduced |
| Robeco Institutional Asset Management B.V. | 142,974 | $9.25M | 0.02% | +29,107+25.6% | Added |
| State Board of Administration of Florida Retirement System | 141,784 | $9.17M | 0.02% | −9,443−6.2% | Reduced |
| Truist Financial Corp | 141,145 | $9.13M | 0.01% | −6,186−4.2% | Reduced |
| UBS Group AG | 136,432 | $8.83M | 0.00% | +5,345+4.1% | Added |
| Andra AP-fonden | 135,800 | $8.78M | 0.15% | +42,500+45.6% | Added |
| New York State Teachers Retirement System | 132,082 | $8.54M | 0.02% | −6,156−4.5% | Reduced |
| Bank of Montreal | 125,035 | $8.24M | 0.00% | +5,445+4.6% | Added |
| Corebridge Financial, Inc. | 126,313 | $8.17M | 0.04% | +126,313 | New |
| Advisor Group Holdings, Inc. | 120,409 | $7.79M | 0.02% | +125+0.1% | Added |
| Jupiter Asset Management Ltd | 120,372 | $7.79M | 0.07% | +120,372 | New |
| West Coast Financial LLC | 116,128 | $7.51M | 0.89% | +63,537+120.8% | Added |
| Crestwood Advisors Group LLC | 108,750 | $7.04M | 0.15% | −140.0% | Reduced |
| Martingale Asset Management L P | 106,706 | $6.90M | 0.15% | +9,593+9.9% | Added |
| Jane Street Group, LLC | 104,826 | $6.78M | 0.01% | +87,295+497.9% | Added |
| Achmea Investment Management B.V. | 102,975 | $6.66M | 0.12% | +7,036+7.3% | Added |
| Abn Amro Investment Solutions | 102,830 | $6.65M | 0.12% | −6,365−5.8% | Reduced |
| Russell Investments Group, Ltd. | 101,382 | $6.55M | 0.01% | −13,985−12.1% | Reduced |
| Great West Life Assurance Co | 100,337 | $6.49M | 0.01% | −812,228−89.0% | Reduced |
| Pinebridge Investments, L.P. | 100,303 | $6.49M | 0.05% | −21,335−17.5% | Reduced |
| Two Sigma Investments, LP | 92,768 | $6.00M | 0.01% | −139,522−60.1% | Reduced |