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 |
|---|---|---|---|---|---|
| Rhumbline Advisers | 337,992 | $27.9M | 0.02% | −1,419−0.4% | Reduced |
| Acadian Asset Management LLC | 350,745 | $28.9M | 0.08% | +121,427+53.0% | Added |
| HSBC Holdings PLC | 363,819 | $30.0M | 0.02% | −38,830−9.6% | Reduced |
| KBC Group NV | 367,303 | $30.3M | 0.08% | +1,495+0.4% | Added |
| UBS Group AG | 379,447 | $31.3M | 0.01% | +235,612+163.8% | Added |
| Royal Bank of Canada | 387,198 | $31.9M | 0.01% | +40,605+11.7% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 389,322 | $32.1M | 0.08% | +215,069+123.4% | Added |
| Legal & General Group Plc | 400,070 | $33.0M | 0.01% | +15,353+4.0% | Added |
| Envestnet Asset Management Inc | 406,580 | $33.5M | 0.01% | +11,787+3.0% | Added |
| AQR Capital Management LLC | 419,680 | $34.6M | 0.04% | −5,562−1.3% | Reduced |
| Franklin Resources Inc | 446,408 | $36.8M | 0.01% | +125,926+39.3% | Added |
| ProShare Advisors LLC | 451,354 | $37.2M | 0.09% | −32,755−6.8% | Reduced |
| Voloridge Investment Management, LLC | 458,208 | $37.8M | 0.13% | −50,828−10.0% | Reduced |
| JPMorgan Chase & Co | 458,881 | $37.8M | 0.00% | −49,035−9.7% | Reduced |
| Ameriprise Financial Inc | 475,792 | $39.2M | 0.01% | +93,568+24.5% | Added |
| First Trust Advisors LP | 482,575 | $39.8M | 0.04% | −468,603−49.3% | Reduced |
| American Capital Management Inc | 497,200 | $41.0M | 1.53% | +192,814+63.3% | Added |
| Raymond James Financial Inc | 515,858 | $42.5M | 0.02% | +515,858 | New |
| Caisse de Depot Et Placement du Quebec | 532,336 | $43.9M | 0.09% | +277,252+108.7% | Added |
| Natixis Advisors, L.P. | 548,646 | $45.3M | 0.08% | −125,624−18.6% | Reduced |
| Brown Advisory Inc | 568,027 | $46.9M | 0.06% | −237,728−29.5% | Reduced |
| Norges Bank | 582,069 | $48.0M | 0.01% | +468,217+411.3% | Added |
| Charles Schwab Investment Management Inc | 668,333 | $55.1M | 0.01% | +3,967+0.6% | Added |
| Citadel Advisors LLC | 745,895 | $61.5M | 0.06% | −470,144−38.7% | Reduced |
| UBS Asset Management Americas Inc | 756,037 | $62.4M | 0.01% | +209,850+38.4% | Added |
| Northern Trust Corp | 1,068,181 | $88.1M | 0.01% | +184,339+20.9% | Added |
| Bank of New York Mellon Corp | 1,171,743 | $96.6M | 0.02% | +46,425+4.1% | Added |
| FMR LLC | 1,233,225 | $101.7M | 0.01% | +348,112+39.3% | Added |
| Boston Trust Walden Corp | 1,306,329 | $107.7M | 0.76% | +20,020+1.6% | Added |
| Royce & Associates LP | 1,357,239 | $111.9M | 1.04% | −108,167−7.4% | Reduced |
| Dimensional Fund Advisors LP | 1,621,446 | $133.7M | 0.03% | −14,345−0.9% | Reduced |
| Invesco Ltd. | 2,255,037 | $186.0M | 0.03% | −302,003−11.8% | Reduced |
| Geode Capital Management, LLC | 2,580,737 | $212.6M | 0.02% | +60,307+2.4% | Added |
| Beutel, Goodman & Co Ltd. | 2,663,869 | $219.7M | 1.20% | −1,351,040−33.7% | Reduced |
| Bank of America Corp | 2,846,654 | $234.8M | 0.02% | −187,203−6.2% | Reduced |
| Morgan Stanley | 5,628,433 | $464.2M | 0.03% | −221,290−3.8% | Reduced |
| State Street Corp | 5,682,653 | $471.5M | 0.02% | −25,349−0.4% | Reduced |
| Loomis Sayles & Co L P | 8,837,307 | $728.9M | 0.92% | −310,622−3.4% | Reduced |
| BlackRock, Inc. | 11,502,657 | $948.7M | 0.02% | +92,569+0.8% | Added |
| Vanguard Group Inc | 11,600,273 | $956.8M | 0.02% | +9,489+0.1% | Added |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −104,192−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −76,987−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −33,477−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −25,161−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −19,619−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −16,073−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −15,479−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −15,203−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −14,662−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −12,600−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −11,820−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −10,020−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −9,689−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −8,740−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −7,800−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −7,765−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −6,996−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −6,921−100.0% | Sold out |
| Veriti Management LLC | 0 | $0 | 0.00% | −6,639−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −6,443−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −5,567−100.0% | Sold out |
| Investment House LLC | 0 | $0 | 0.00% | −5,432−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −4,615−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −4,368−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −4,278−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −4,086−100.0% | Sold out |
| Atlanta Consulting Group Advisors, LLC | 0 | $0 | 0.00% | −3,797−100.0% | Sold out |
| Investment Management Corp of Ontario | 0 | $0 | 0.00% | −3,716−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −3,667−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −3,550−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −3,507−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −3,424−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −3,272−100.0% | Sold out |
| Wrapmanager Inc | 0 | $0 | 0.00% | −2,942−100.0% | Sold out |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0 | $0 | 0.00% | −803−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −747−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −648−100.0% | Sold out |
| Uncommon Cents Investing LLC | 0 | $0 | 0.00% | −615−100.0% | Sold out |
| Gladius Capital Management LP | 0 | $0 | 0.00% | −474−100.0% | Sold out |
| Householder Group Estate & Retirement Specialist, LLC | 0 | $0 | 0.00% | −96−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −80−100.0% | Sold out |
| Beach Investment Counsel Inc | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Brown Brothers Harriman & Co | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −56−100.0% | Sold out |
| Raffa Wealth Management, LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| AdvisorNet Financial, Inc | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Claris Advisors, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Eagle Bay Advisors LLC | 0 | $0 | 0.00% | 0 | Sold out |
| Raymond James & Associates | – | – | – | – | Not filed |
| Raymond James Financial Services Advisors, Inc. | – | – | – | – | Not filed |
| Smithbridge Asset Management Inc | – | – | – | – | Not filed |
| Raymond James Trust N.A. | – | – | – | – | Not filed |
| Northwest Investment Counselors, LLC | – | – | – | – | Not filed |
| First Personal Financial Services | – | – | – | – | Not filed |
| M&R Capital Management Inc | – | – | – | – | Not filed |