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, Q3 2024
Institutional positions in SEI Investments Co as of Sep 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
- 502
- +15 vs. Q2 2024
- Shares held
- 91.7M
- +10.4M (+12.7%) vs. Q2 2024
- Total value
- $6.35B
- +$1.08B (+20.6%) vs. Q2 2024
- New holders
- 50
- 172 more added
- Sold out
- 35
- 184 more reduced
6 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 11,590,784 | $802.0M | 0.01% | −247,319−2.1% | Reduced |
| BlackRock, Inc. | 11,410,088 | $789.5M | 0.02% | +11,410,088 | New |
| Loomis Sayles & Co L P | 9,147,929 | $632.9M | 0.83% | −294,476−3.1% | Reduced |
| Morgan Stanley | 5,849,723 | $404.7M | 0.03% | −97,692−1.6% | Reduced |
| State Street Corp | 5,708,002 | $394.9M | 0.02% | −403,318−6.6% | Reduced |
| Beutel, Goodman & Co Ltd. | 4,014,909 | $277.8M | 1.37% | −41,950−1.0% | Reduced |
| Bank of America Corp | 3,033,857 | $209.9M | 0.02% | −3,159−0.1% | Reduced |
| Invesco Ltd. | 2,557,040 | $176.9M | 0.03% | +161,935+6.8% | Added |
| Geode Capital Management, LLC | 2,520,430 | $174.1M | 0.01% | +300,704+13.5% | Added |
| Dimensional Fund Advisors LP | 1,635,791 | $113.2M | 0.03% | +255,480+18.5% | Added |
| Royce & Associates LP | 1,465,406 | $101.4M | 0.92% | +1,828+0.1% | Added |
| Boston Trust Walden Corp | 1,286,309 | $89.0M | 0.62% | −10,033−0.8% | Reduced |
| Citadel Advisors LLC | 1,216,039 | $84.1M | 0.09% | +303,190+33.2% | Added |
| Bank of New York Mellon Corp | 1,125,318 | $77.9M | 0.01% | −61,121−5.2% | Reduced |
| First Trust Advisors LP | 951,178 | $65.8M | 0.06% | +54,462+6.1% | Added |
| FMR LLC | 885,113 | $61.2M | 0.00% | +632,024+249.7% | Added |
| Northern Trust Corp | 883,842 | $61.2M | 0.01% | −122,711−12.2% | Reduced |
| Brown Advisory Inc | 805,755 | $55.8M | 0.07% | −35,199−4.2% | Reduced |
| Natixis Advisors, L.P. | 674,270 | $46.7M | 0.09% | −1,005−0.1% | Reduced |
| Charles Schwab Investment Management Inc | 664,366 | $46.0M | 0.01% | −3,134−0.5% | Reduced |
| UBS Asset Management Americas Inc | 546,187 | $37.8M | 0.01% | +10,576+2.0% | Added |
| Raymond James & Associates | 544,477 | $37.7M | 0.02% | +19,846+3.8% | Added |
| Voloridge Investment Management, LLC | 509,036 | $35.2M | 0.13% | +115,442+29.3% | Added |
| JPMorgan Chase & Co | 507,916 | $35.1M | 0.00% | +60,824+13.6% | Added |
| ProShare Advisors LLC | 484,109 | $33.5M | 0.08% | +19,098+4.1% | Added |
| AQR Capital Management LLC | 425,242 | $29.4M | 0.04% | +58,153+15.8% | Added |
| Millennium Management LLC | 409,927 | $28.4M | 0.02% | +217,539+113.1% | Added |
| HSBC Holdings PLC | 402,649 | $27.8M | 0.02% | +55,586+16.0% | Added |
| Envestnet Asset Management Inc | 394,793 | $27.3M | 0.01% | +13,421+3.5% | Added |
| Qube Research & Technologies Ltd | 391,932 | $27.1M | 0.05% | +240,484+158.8% | Added |
| Legal & General Group Plc | 384,717 | $26.6M | 0.01% | −491,162−56.1% | Reduced |
| Ameriprise Financial Inc | 382,224 | $26.4M | 0.01% | −22,848−5.6% | Reduced |
| KBC Group NV | 365,808 | $25.3M | 0.08% | −21,932−5.7% | Reduced |
| Royal Bank of Canada | 346,593 | $24.0M | 0.01% | −15,058−4.2% | Reduced |
| Goldman Sachs Group Inc | 344,326 | $23.8M | 0.00% | +82,563+31.5% | Added |
| Deutsche Bank AG | 341,112 | $23.6M | 0.01% | −13,640−3.8% | Reduced |
| Rhumbline Advisers | 339,411 | $23.5M | 0.02% | −5,517−1.6% | Reduced |
| Franklin Resources Inc | 320,482 | $22.8M | 0.01% | +48,429+17.8% | Added |
| American Capital Management Inc | 304,386 | $21.1M | 0.69% | +620.0% | Added |
| JLB & Associates Inc | 288,524 | $20.0M | 2.57% | +2,722+1.0% | Added |
| Retirement Systems of Alabama | 278,914 | $19.3M | 0.07% | −3,326−1.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 272,701 | $18.9M | 0.02% | +65,259+31.5% | Added |
| Amundi | 264,743 | $18.5M | 0.01% | +4,046+1.6% | Added |
| Caisse de Depot Et Placement du Quebec | 255,084 | $17.6M | 0.04% | −158,555−38.3% | Reduced |
| Nuveen Asset Management, LLC | 253,223 | $17.5M | 0.00% | −3,657−1.4% | Reduced |
| Interval Partners, LP | 241,242 | $16.7M | 0.48% | +41,012+20.5% | Added |
| Principal Financial Group Inc | 238,228 | $16.5M | 0.01% | −103,952−30.4% | Reduced |
| New York State Common Retirement Fund | 234,754 | $16.2M | 0.02% | −10,100−4.1% | Reduced |
| Acadian Asset Management LLC | 229,318 | $15.9M | 0.05% | −126,968−35.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 224,084 | $15.5M | 0.01% | −47,433−17.5% | Reduced |
| American Century Companies Inc | 216,710 | $15.0M | 0.01% | −94,749−30.4% | Reduced |
| Alps Advisors Inc | 215,499 | $14.9M | 0.10% | +58,742+37.5% | Added |
| Thrivent Financial for Lutherans | 210,704 | $14.6M | 0.03% | +603+0.3% | Added |
| Leith Wheeler Investment Counsel Ltd. | 210,482 | $14.6M | 1.02% | −8,424−3.8% | Reduced |
| State of Alaska, Department of Revenue | 199,610 | $13.8M | 0.15% | +775+0.4% | Added |
| Danske Bank A/S | 198,494 | $13.7M | 0.05% | +37,146+23.0% | Added |
| Korea Investment CORP | 197,284 | $13.7M | 0.03% | +45,409+29.9% | Added |
| Prana Capital Management, LP | 196,816 | $13.6M | 0.62% | +19,289+10.9% | Added |
| Man Group plc | 196,009 | $13.6M | 0.04% | −30,140−13.3% | Reduced |
| Renaissance Technologies LLC | 191,326 | $13.2M | 0.02% | −5,100−2.6% | Reduced |
| Vestcor Inc | 188,149 | $13.0M | 0.41% | 00.0% | Unchanged |
| Citigroup Inc | 182,649 | $12.6M | 0.01% | −14,717−7.5% | Reduced |
| TD Asset Management Inc | 179,030 | $12.4M | 0.01% | −10,839−5.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 174,253 | $12.1M | 0.03% | −27,534−13.6% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $12.0M | 0.11% | 00.0% | Unchanged |
| Bank of Nova Scotia | 169,415 | $11.7M | 0.02% | +108,153+176.5% | Added |
| California Public Employees Retirement System | 167,595 | $11.6M | 0.01% | +3,385+2.1% | Added |
| Barclays PLC | 166,012 | $11.5M | 0.01% | −16,163−8.9% | Reduced |
| Allianz Asset Management GmbH | 162,325 | $11.2M | 0.02% | +12,273+8.2% | Added |
| Victory Capital Management Inc | 161,248 | $11.2M | 0.01% | +973+0.6% | Added |
| Two Sigma Investments, LP | 156,677 | $10.8M | 0.02% | +63,909+68.9% | Added |
| Andra AP-fonden | 155,800 | $10.8M | 0.16% | +20,000+14.7% | Added |
| Teacher Retirement System of Texas | 153,048 | $10.6M | 0.05% | −13,445−8.1% | Reduced |
| Bank of Montreal | 149,659 | $10.4M | 0.00% | +24,624+19.7% | Added |
| Balyasny Asset Management LLC | 148,799 | $10.3M | 0.03% | −70,714−32.2% | Reduced |
| UBS Group AG | 143,835 | $9.95M | 0.00% | +7,403+5.4% | Added |
| Pinebridge Investments, L.P. | 142,531 | $9.86M | 0.07% | +42,228+42.1% | Added |
| State Board of Administration of Florida Retirement System | 141,784 | $9.81M | 0.02% | 00.0% | Unchanged |
| California State Teachers Retirement System | 137,867 | $9.54M | 0.01% | −8,297−5.7% | Reduced |
| Alliancebernstein L.P. | 137,013 | $9.48M | 0.00% | −11,933−8.0% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 130,223 | $9.01M | 0.02% | −24,924−16.1% | Reduced |
| New York State Teachers Retirement System | 125,908 | $8.71M | 0.02% | −6,174−4.7% | Reduced |
| Truist Financial Corp | 121,039 | $8.37M | 0.01% | −20,106−14.2% | Reduced |
| Advisor Group Holdings, Inc. | 120,919 | $8.37M | 0.02% | +510+0.4% | Added |
| Foyston, Gordon, & Payne Inc | 121,503 | $8.30M | 2.07% | +39,401+48.0% | Added |
| West Coast Financial LLC | 117,382 | $8.12M | 0.89% | +1,254+1.1% | Added |
| Corebridge Financial, Inc. | 116,749 | $8.08M | 0.04% | −9,564−7.6% | Reduced |
| Norges Bank | 113,852 | $7.88M | 0.00% | −29,677−20.7% | Reduced |
| Achmea Investment Management B.V. | 112,900 | $7.81M | 0.13% | +9,925+9.6% | Added |
| Verition Fund Management LLC | 111,098 | $7.69M | 0.05% | +107,222+2,766.3% | Added |
| Crestwood Advisors Group LLC | 109,393 | $7.57M | 0.14% | +643+0.6% | Added |
| Great West Life Assurance Co | 104,258 | $7.21M | 0.01% | +3,921+3.9% | Added |
| Cubist Systematic Strategies, LLC | 104,192 | $7.21M | 0.11% | +104,192 | New |
| Martingale Asset Management L P | 102,665 | $7.10M | 0.16% | −4,041−3.8% | Reduced |
| Abn Amro Investment Solutions | 102,570 | $7.10M | 0.12% | −260−0.3% | Reduced |
| Van Eck Associates Corp | 94,605 | $6.69M | 0.01% | +39,711+72.3% | Added |
| State of Wisconsin Investment Board | 94,956 | $6.57M | 0.02% | +10,810+12.8% | Added |
| BNP Paribas Arbitrage, SA | 90,902 | $6.29M | 0.01% | +45,241+99.1% | Added |
| Hahn Capital Management LLC | 86,919 | $6.01M | 3.87% | −1,303−1.5% | Reduced |
| Modera Wealth Management, LLC | 85,750 | $5.93M | 0.08% | −2,086−2.4% | Reduced |