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 |
|---|---|---|---|---|---|
| Two Sigma Advisers, LP | 50,100 | $4.13M | 0.01% | −20,600−29.1% | Reduced |
| Mutual of America Capital Management LLC | 51,753 | $4.27M | 0.05% | −1,601−3.0% | Reduced |
| Algert Global LLC | 51,781 | $4.27M | 0.10% | +2,091+4.2% | Added |
| Nomura Asset Management Co Ltd | 51,809 | $4.27M | 0.01% | +61+0.1% | Added |
| CWM, LLC | 54,612 | $4.50M | 0.02% | −2,614−4.6% | Reduced |
| MetLife Investment Management | 55,261 | $4.56M | 0.02% | +4,219+8.3% | Added |
| IFG Advisory, LLC | 57,450 | $4.74M | 0.27% | −1,068−1.8% | Reduced |
| HBK Sorce Advisory LLC | 58,024 | $4.79M | 0.14% | −38−0.1% | Reduced |
| Court Place Advisors, LLC | 58,241 | $4.80M | 1.56% | −1,909−3.2% | Reduced |
| Pictet Asset Management Holding SA | 58,980 | $4.86M | 0.01% | −1,148−1.9% | Reduced |
| Van Eck Associates Corp | 59,325 | $4.89M | 0.01% | −35,280−37.3% | Reduced |
| APG Asset Management N.V. | 62,300 | $4.96M | 0.01% | +62,300 | New |
| ExodusPoint Capital Management, LP | 60,548 | $4.99M | 0.05% | +56,358+1,345.1% | Added |
| Storebrand Asset Management AS | 61,230 | $5.05M | 0.02% | −7,081−10.4% | Reduced |
| Public Employees Retirement System of Ohio | 62,454 | $5.15M | 0.02% | −2,709−4.2% | Reduced |
| Price T Rowe Associates Inc | 63,889 | $5.27M | 0.00% | +7,467+13.2% | Added |
| Taylor Hoffman Capital Management LLC | 65,185 | $5.38M | 1.95% | +1,103+1.7% | Added |
| Balyasny Asset Management LLC | 66,128 | $5.45M | 0.01% | −82,671−55.6% | Reduced |
| Southernsun Asset Management, LLC | 66,649 | $5.50M | 0.68% | +1,068+1.6% | Added |
| Brandywine Global Investment Management, LLC | 67,880 | $5.60M | 0.04% | −5,340−7.3% | Reduced |
| Union Heritage Capital, LLC | 68,700 | $5.67M | 2.09% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 69,627 | $5.74M | 0.01% | −4,516−6.1% | Reduced |
| Renaissance Technologies LLC | 70,426 | $5.81M | 0.01% | −120,900−63.2% | Reduced |
| RK Asset Management, LLC | 70,559 | $5.82M | 4.76% | −2,606−3.6% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 71,744 | $5.92M | 0.01% | +71,744 | New |
| Meiji Yasuda Asset Management Co Ltd. | 74,121 | $6.11M | 0.23% | −2,305−3.0% | Reduced |
| BNP Paribas Arbitrage, SA | 74,764 | $6.17M | 0.00% | −16,138−17.8% | Reduced |
| Holocene Advisors, LP | 75,127 | $6.20M | 0.02% | +4,991+7.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 78,204 | $6.40M | 0.01% | −314−0.4% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 78,177 | $6.45M | 0.02% | −1,513−1.9% | Reduced |
| Andra AP-fonden | 78,400 | $6.47M | 0.10% | −77,400−49.7% | Reduced |
| Manufacturers Life Insurance Company, The | 82,747 | $6.82M | 0.01% | −2,495−2.9% | Reduced |
| Achmea Investment Management B.V. | 82,860 | $6.83M | 0.11% | −30,040−26.6% | Reduced |
| Modera Wealth Management, LLC | 83,335 | $6.87M | 0.08% | −2,415−2.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 84,147 | $6.95M | 0.03% | −49−0.1% | Reduced |
| Susquehanna Fundamental Investments, LLC | 84,604 | $6.98M | 0.12% | +84,604 | New |
| Zacks Investment Management | 86,107 | $7.10M | 0.07% | +86,107 | New |
| Abn Amro Investment Solutions | 87,915 | $7.25M | 0.14% | −14,655−14.3% | Reduced |
| LPL Financial LLC | 88,164 | $7.27M | 0.00% | +9,607+12.2% | Added |
| State of Wisconsin Investment Board | 89,057 | $7.35M | 0.02% | −5,899−6.2% | Reduced |
| Weiss Asset Management LP | 89,150 | $7.35M | 0.17% | +89,150 | New |
| Jane Street Group, LLC | 89,772 | $7.40M | 0.01% | +51,131+132.3% | Added |
| Citigroup Inc | 93,099 | $7.68M | 0.01% | −89,550−49.0% | Reduced |
| Great West Life Assurance Co | 99,725 | $8.22M | 0.01% | −4,533−4.3% | Reduced |
| Robeco Institutional Asset Management B.V. | 101,085 | $8.34M | 0.02% | +36,206+55.8% | Added |
| Russell Investments Group, Ltd. | 106,892 | $8.82M | 0.01% | +31,977+42.7% | Added |
| Vinva Investment Management Ltd | 108,350 | $8.95M | 0.35% | +59,214+120.5% | Added |
| Trexquant Investment LP | 109,804 | $9.06M | 0.11% | +87,307+388.1% | Added |
| Umb Bank N A | 110,277 | $9.10M | 0.14% | +110,277 | New |
| Corebridge Financial, Inc. | 110,871 | $9.14M | 0.05% | −5,878−5.0% | Reduced |
| West Coast Financial LLC | 118,103 | $9.74M | 1.07% | +721+0.6% | Added |
| New York State Teachers Retirement System | 118,515 | $9.78M | 0.02% | −7,393−5.9% | Reduced |
| Foyston, Gordon, & Payne Inc | 119,723 | $9.87M | 2.62% | −1,780−1.5% | Reduced |
| Truist Financial Corp | 119,991 | $9.90M | 0.02% | −1,048−0.9% | Reduced |
| Advisor Group Holdings, Inc. | 122,904 | $10.1M | 0.02% | +1,985+1.6% | Added |
| Hahn Capital Management LLC | 126,910 | $10.5M | 4.59% | +39,991+46.0% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 128,607 | $10.6M | 0.02% | −1,616−1.2% | Reduced |
| California State Teachers Retirement System | 130,555 | $10.8M | 0.01% | −7,312−5.3% | Reduced |
| Pinebridge Investments, L.P. | 133,081 | $11.0M | 0.08% | −9,450−6.6% | Reduced |
| Prudential Financial Inc | 137,183 | $11.3M | 0.02% | +104,367+318.0% | Added |
| Bank of Montreal | 138,151 | $11.4M | 0.01% | −11,508−7.7% | Reduced |
| TD Asset Management Inc | 139,374 | $11.5M | 0.01% | −39,656−22.2% | Reduced |
| State Board of Administration of Florida Retirement System | 142,437 | $11.7M | 0.02% | +653+0.5% | Added |
| Barclays PLC | 145,378 | $12.0M | 0.01% | −20,634−12.4% | Reduced |
| Schroder Investment Management Group | 146,235 | $12.1M | 0.01% | +61,580+72.7% | Added |
| Deutsche Bank AG | 152,402 | $12.6M | 0.00% | −188,710−55.3% | Reduced |
| California Public Employees Retirement System | 160,101 | $13.2M | 0.01% | −7,494−4.5% | Reduced |
| KLP Kapitalforvaltning AS | 162,300 | $13.5M | 0.06% | +162,300 | New |
| Victory Capital Management Inc | 164,048 | $13.5M | 0.01% | +2,800+1.7% | Added |
| Alliancebernstein L.P. | 169,134 | $14.0M | 0.00% | +32,121+23.4% | Added |
| Thrivent Financial for Lutherans | 172,133 | $14.2M | 0.03% | −38,571−18.3% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $14.3M | 0.13% | 00.0% | Unchanged |
| Millennium Management LLC | 178,367 | $14.7M | 0.01% | −231,560−56.5% | Reduced |
| Two Sigma Investments, LP | 179,348 | $14.8M | 0.03% | +22,671+14.5% | Added |
| Vestcor Inc | 184,952 | $15.3M | 0.51% | −3,197−1.7% | Reduced |
| Korea Investment CORP | 189,484 | $15.6M | 0.04% | −7,800−4.0% | Reduced |
| State of Alaska, Department of Revenue | 199,205 | $16.4M | 0.18% | −405−0.2% | Reduced |
| Interval Partners, LP | 199,473 | $16.5M | 0.42% | −41,769−17.3% | Reduced |
| Leith Wheeler Investment Counsel Ltd. | 203,217 | $16.8M | 1.21% | −7,265−3.5% | Reduced |
| American Century Companies Inc | 203,752 | $16.8M | 0.01% | −12,958−6.0% | Reduced |
| Man Group plc | 206,242 | $17.0M | 0.05% | +10,233+5.2% | Added |
| Crestwood Advisors Group LLC | 209,032 | $17.2M | 0.32% | +99,639+91.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 219,533 | $18.1M | 0.01% | −4,551−2.0% | Reduced |
| New York State Common Retirement Fund | 221,254 | $18.2M | 0.02% | −13,500−5.8% | Reduced |
| Goldman Sachs Group Inc | 222,484 | $18.4M | 0.00% | −121,842−35.4% | Reduced |
| Allianz Asset Management GmbH | 230,501 | $19.0M | 0.03% | +68,176+42.0% | Added |
| Martingale Asset Management L P | 230,671 | $19.0M | 0.46% | +128,006+124.7% | Added |
| Danske Bank A/S | 230,897 | $19.0M | 0.06% | +32,403+16.3% | Added |
| Principal Financial Group Inc | 234,072 | $19.3M | 0.01% | −4,156−1.7% | Reduced |
| Amundi | 238,282 | $19.4M | 0.01% | −26,461−10.0% | Reduced |
| Alps Advisors Inc | 253,833 | $20.9M | 0.13% | +38,334+17.8% | Added |
| Teacher Retirement System of Texas | 258,956 | $21.4M | 0.08% | +105,908+69.2% | Added |
| Qube Research & Technologies Ltd | 271,502 | $22.4M | 0.04% | −120,430−30.7% | Reduced |
| Retirement Systems of Alabama | 278,119 | $22.9M | 0.09% | −795−0.3% | Reduced |
| JLB & Associates Inc | 281,186 | $23.2M | 3.15% | −7,338−2.5% | Reduced |
| Nuveen Asset Management, LLC | 283,719 | $23.4M | 0.01% | +30,496+12.0% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 287,465 | $23.7M | 0.38% | +287,465 | New |
| Prana Capital Management, LP | 299,013 | $24.7M | 1.18% | +102,197+51.9% | Added |
| Arrowstreet Capital, Limited Partnership | 303,078 | $25.0M | 0.02% | +30,377+11.1% | Added |
| Los Angeles Capital Management LLC | 323,736 | $26.7M | 0.11% | +323,736 | New |