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 2024
Institutional positions in SEI Investments Co as of Dec 31, 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
- 540
- +45 vs. Q3 2024
- Shares held
- 91.2M
- +90.1K (+0.1%) vs. Q3 2024
- Total value
- $7.52B
- +$1.22B (+19.3%) vs. Q3 2024
- New holders
- 95
- 160 more added
- Sold out
- 50
- 186 more reduced
7 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 11,600,273 | $956.8M | 0.02% | +9,489+0.1% | Added |
| BlackRock, Inc. | 11,502,657 | $948.7M | 0.02% | +92,569+0.8% | Added |
| Loomis Sayles & Co L P | 8,837,307 | $728.9M | 0.92% | −310,622−3.4% | Reduced |
| State Street Corp | 5,682,653 | $471.5M | 0.02% | −25,349−0.4% | Reduced |
| Morgan Stanley | 5,628,433 | $464.2M | 0.03% | −221,290−3.8% | Reduced |
| Bank of America Corp | 2,846,654 | $234.8M | 0.02% | −187,203−6.2% | Reduced |
| Beutel, Goodman & Co Ltd. | 2,663,869 | $219.7M | 1.20% | −1,351,040−33.7% | Reduced |
| Geode Capital Management, LLC | 2,580,737 | $212.6M | 0.02% | +60,307+2.4% | Added |
| Invesco Ltd. | 2,255,037 | $186.0M | 0.03% | −302,003−11.8% | Reduced |
| Dimensional Fund Advisors LP | 1,621,446 | $133.7M | 0.03% | −14,345−0.9% | Reduced |
| Royce & Associates LP | 1,357,239 | $111.9M | 1.04% | −108,167−7.4% | Reduced |
| Boston Trust Walden Corp | 1,306,329 | $107.7M | 0.76% | +20,020+1.6% | Added |
| FMR LLC | 1,233,225 | $101.7M | 0.01% | +348,112+39.3% | Added |
| Bank of New York Mellon Corp | 1,171,743 | $96.6M | 0.02% | +46,425+4.1% | Added |
| Northern Trust Corp | 1,068,181 | $88.1M | 0.01% | +184,339+20.9% | Added |
| UBS Asset Management Americas Inc | 756,037 | $62.4M | 0.01% | +209,850+38.4% | Added |
| Citadel Advisors LLC | 745,895 | $61.5M | 0.06% | −470,144−38.7% | Reduced |
| Charles Schwab Investment Management Inc | 668,333 | $55.1M | 0.01% | +3,967+0.6% | Added |
| Norges Bank | 582,069 | $48.0M | 0.01% | +468,217+411.3% | Added |
| Brown Advisory Inc | 568,027 | $46.9M | 0.06% | −237,728−29.5% | Reduced |
| Natixis Advisors, L.P. | 548,646 | $45.3M | 0.08% | −125,624−18.6% | Reduced |
| Caisse de Depot Et Placement du Quebec | 532,336 | $43.9M | 0.09% | +277,252+108.7% | Added |
| Raymond James Financial Inc | 515,858 | $42.5M | 0.02% | +515,858 | New |
| American Capital Management Inc | 497,200 | $41.0M | 1.53% | +192,814+63.3% | Added |
| First Trust Advisors LP | 482,575 | $39.8M | 0.04% | −468,603−49.3% | Reduced |
| Ameriprise Financial Inc | 475,792 | $39.2M | 0.01% | +93,568+24.5% | Added |
| JPMorgan Chase & Co | 458,881 | $37.8M | 0.00% | −49,035−9.7% | Reduced |
| Voloridge Investment Management, LLC | 458,208 | $37.8M | 0.13% | −50,828−10.0% | Reduced |
| ProShare Advisors LLC | 451,354 | $37.2M | 0.09% | −32,755−6.8% | Reduced |
| Franklin Resources Inc | 446,408 | $36.8M | 0.01% | +125,926+39.3% | Added |
| AQR Capital Management LLC | 419,680 | $34.6M | 0.04% | −5,562−1.3% | Reduced |
| Envestnet Asset Management Inc | 406,580 | $33.5M | 0.01% | +11,787+3.0% | Added |
| Legal & General Group Plc | 400,070 | $33.0M | 0.01% | +15,353+4.0% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 389,322 | $32.1M | 0.08% | +215,069+123.4% | Added |
| Royal Bank of Canada | 387,198 | $31.9M | 0.01% | +40,605+11.7% | Added |
| UBS Group AG | 379,447 | $31.3M | 0.01% | +235,612+163.8% | Added |
| KBC Group NV | 367,303 | $30.3M | 0.08% | +1,495+0.4% | Added |
| HSBC Holdings PLC | 363,819 | $30.0M | 0.02% | −38,830−9.6% | Reduced |
| Acadian Asset Management LLC | 350,745 | $28.9M | 0.08% | +121,427+53.0% | Added |
| Rhumbline Advisers | 337,992 | $27.9M | 0.02% | −1,419−0.4% | Reduced |
| Los Angeles Capital Management LLC | 323,736 | $26.7M | 0.11% | +323,736 | New |
| Arrowstreet Capital, Limited Partnership | 303,078 | $25.0M | 0.02% | +30,377+11.1% | Added |
| Prana Capital Management, LP | 299,013 | $24.7M | 1.18% | +102,197+51.9% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 287,465 | $23.7M | 0.38% | +287,465 | New |
| Nuveen Asset Management, LLC | 283,719 | $23.4M | 0.01% | +30,496+12.0% | Added |
| JLB & Associates Inc | 281,186 | $23.2M | 3.15% | −7,338−2.5% | Reduced |
| Retirement Systems of Alabama | 278,119 | $22.9M | 0.09% | −795−0.3% | Reduced |
| Qube Research & Technologies Ltd | 271,502 | $22.4M | 0.04% | −120,430−30.7% | Reduced |
| Teacher Retirement System of Texas | 258,956 | $21.4M | 0.08% | +105,908+69.2% | Added |
| Alps Advisors Inc | 253,833 | $20.9M | 0.13% | +38,334+17.8% | Added |
| Amundi | 238,282 | $19.4M | 0.01% | −26,461−10.0% | Reduced |
| Principal Financial Group Inc | 234,072 | $19.3M | 0.01% | −4,156−1.7% | Reduced |
| Danske Bank A/S | 230,897 | $19.0M | 0.06% | +32,403+16.3% | Added |
| Martingale Asset Management L P | 230,671 | $19.0M | 0.46% | +128,006+124.7% | Added |
| Allianz Asset Management GmbH | 230,501 | $19.0M | 0.03% | +68,176+42.0% | Added |
| Goldman Sachs Group Inc | 222,484 | $18.4M | 0.00% | −121,842−35.4% | Reduced |
| New York State Common Retirement Fund | 221,254 | $18.2M | 0.02% | −13,500−5.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 219,533 | $18.1M | 0.01% | −4,551−2.0% | Reduced |
| Crestwood Advisors Group LLC | 209,032 | $17.2M | 0.32% | +99,639+91.1% | Added |
| Man Group plc | 206,242 | $17.0M | 0.05% | +10,233+5.2% | Added |
| American Century Companies Inc | 203,752 | $16.8M | 0.01% | −12,958−6.0% | Reduced |
| Leith Wheeler Investment Counsel Ltd. | 203,217 | $16.8M | 1.21% | −7,265−3.5% | Reduced |
| Interval Partners, LP | 199,473 | $16.5M | 0.42% | −41,769−17.3% | Reduced |
| State of Alaska, Department of Revenue | 199,205 | $16.4M | 0.18% | −405−0.2% | Reduced |
| Korea Investment CORP | 189,484 | $15.6M | 0.04% | −7,800−4.0% | Reduced |
| Vestcor Inc | 184,952 | $15.3M | 0.51% | −3,197−1.7% | Reduced |
| Two Sigma Investments, LP | 179,348 | $14.8M | 0.03% | +22,671+14.5% | Added |
| Millennium Management LLC | 178,367 | $14.7M | 0.01% | −231,560−56.5% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $14.3M | 0.13% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 172,133 | $14.2M | 0.03% | −38,571−18.3% | Reduced |
| Alliancebernstein L.P. | 169,134 | $14.0M | 0.00% | +32,121+23.4% | Added |
| Victory Capital Management Inc | 164,048 | $13.5M | 0.01% | +2,800+1.7% | Added |
| KLP Kapitalforvaltning AS | 162,300 | $13.5M | 0.06% | +162,300 | New |
| California Public Employees Retirement System | 160,101 | $13.2M | 0.01% | −7,494−4.5% | Reduced |
| Deutsche Bank AG | 152,402 | $12.6M | 0.00% | −188,710−55.3% | Reduced |
| Schroder Investment Management Group | 146,235 | $12.1M | 0.01% | +61,580+72.7% | Added |
| Barclays PLC | 145,378 | $12.0M | 0.01% | −20,634−12.4% | Reduced |
| State Board of Administration of Florida Retirement System | 142,437 | $11.7M | 0.02% | +653+0.5% | Added |
| TD Asset Management Inc | 139,374 | $11.5M | 0.01% | −39,656−22.2% | Reduced |
| Bank of Montreal | 138,151 | $11.4M | 0.01% | −11,508−7.7% | Reduced |
| Prudential Financial Inc | 137,183 | $11.3M | 0.02% | +104,367+318.0% | Added |
| Pinebridge Investments, L.P. | 133,081 | $11.0M | 0.08% | −9,450−6.6% | Reduced |
| California State Teachers Retirement System | 130,555 | $10.8M | 0.01% | −7,312−5.3% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 128,607 | $10.6M | 0.02% | −1,616−1.2% | Reduced |
| Hahn Capital Management LLC | 126,910 | $10.5M | 4.59% | +39,991+46.0% | Added |
| Advisor Group Holdings, Inc. | 122,904 | $10.1M | 0.02% | +1,985+1.6% | Added |
| Truist Financial Corp | 119,991 | $9.90M | 0.02% | −1,048−0.9% | Reduced |
| Foyston, Gordon, & Payne Inc | 119,723 | $9.87M | 2.62% | −1,780−1.5% | Reduced |
| New York State Teachers Retirement System | 118,515 | $9.78M | 0.02% | −7,393−5.9% | Reduced |
| West Coast Financial LLC | 118,103 | $9.74M | 1.07% | +721+0.6% | Added |
| Corebridge Financial, Inc. | 110,871 | $9.14M | 0.05% | −5,878−5.0% | Reduced |
| Umb Bank N A | 110,277 | $9.10M | 0.14% | +110,277 | New |
| Trexquant Investment LP | 109,804 | $9.06M | 0.11% | +87,307+388.1% | Added |
| Vinva Investment Management Ltd | 108,350 | $8.95M | 0.35% | +59,214+120.5% | Added |
| Russell Investments Group, Ltd. | 106,892 | $8.82M | 0.01% | +31,977+42.7% | Added |
| Robeco Institutional Asset Management B.V. | 101,085 | $8.34M | 0.02% | +36,206+55.8% | Added |
| Great West Life Assurance Co | 99,725 | $8.22M | 0.01% | −4,533−4.3% | Reduced |
| Citigroup Inc | 93,099 | $7.68M | 0.01% | −89,550−49.0% | Reduced |
| Jane Street Group, LLC | 89,772 | $7.40M | 0.01% | +51,131+132.3% | Added |
| Weiss Asset Management LP | 89,150 | $7.35M | 0.17% | +89,150 | New |