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 2025
Institutional positions in SEI Investments Co as of Dec 31, 2025. 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
- 562
- +24 vs. Q3 2025
- Shares held
- 89.1M
- +699.0K (+0.8%) vs. Q3 2025
- Total value
- $7.31B
- −$184.7M (−2.5%) vs. Q3 2025
- New holders
- 81
- 199 more added
- Sold out
- 57
- 192 more reduced
12 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM Advisors, LLC | 37,517 | $3.08M | 0.28% | −3,677−8.9% | Reduced |
| Worldquant Millennium Advisors LLC | 38,218 | $3.13M | 0.01% | +11,530+43.2% | Added |
| US Bancorp | 38,368 | $3.15M | 0.00% | −63−0.2% | Reduced |
| BNP Paribas Arbitrage, SA | 38,547 | $3.16M | 0.00% | +19,390+101.2% | Added |
| Mutual of America Capital Management LLC | 38,727 | $3.18M | 0.03% | −4,665−10.8% | Reduced |
| Ingalls & Snyder LLC | 39,153 | $3.21M | 0.12% | +870+2.3% | Added |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 39,217 | $3.22M | 0.12% | +39,217 | New |
| Cerity Partners LLC | 39,504 | $3.24M | 0.00% | −32,532−45.2% | Reduced |
| Atria Investments LLC | 39,548 | $3.24M | 0.04% | −590−1.5% | Reduced |
| Bokf, NA | 41,109 | $3.37M | 0.05% | −2,124−4.9% | Reduced |
| Amalgamated Bank | 41,530 | $3.41M | 0.02% | −4,233−9.2% | Reduced |
| State of Tennessee, Treasury Department | 38,835 | $3.41M | 0.01% | −1,663−4.1% | Reduced |
| Ensign Peak Advisors, Inc | 42,474 | $3.48M | 0.01% | −9,999−19.1% | Reduced |
| Holocene Advisors, LP | 42,533 | $3.49M | 0.01% | −6,630−13.5% | Reduced |
| Henshaw Capital LLC | 42,843 | $3.51M | 0.13% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 42,862 | $3.52M | 0.01% | −3,904−8.3% | Reduced |
| Karl Kapital LLC | 43,072 | $3.53M | 3.13% | +43,072 | New |
| New York State Common Retirement Fund | 43,100 | $3.54M | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 43,123 | $3.54M | 0.03% | −3,087−6.7% | Reduced |
| Nisa Investment Advisors, LLC | 43,852 | $3.62M | 0.01% | +170.0% | Added |
| Moran Wealth Management, LLC | 44,154 | $3.62M | 0.11% | −1,809−3.9% | Reduced |
| Quest Partners LLC | 44,564 | $3.66M | 0.20% | +8,219+22.6% | Added |
| Janus Henderson Group PLC | 45,122 | $3.70M | 0.00% | −978−2.1% | Reduced |
| MetLife Investment Management | 45,620 | $3.74M | 0.02% | −2,838−5.9% | Reduced |
| Abn Amro Investment Solutions | 46,285 | $3.80M | 0.06% | −18,010−28.0% | Reduced |
| KBC Group NV | 46,627 | $3.82M | 0.01% | −1,258−2.6% | Reduced |
| New Age Alpha Advisors, LLC | 47,153 | $3.87M | 0.17% | +34,745+280.0% | Added |
| Banco Santander, S.A. | 47,549 | $3.90M | 0.03% | −16,371−25.6% | Reduced |
| Intech Investment Management LLC | 48,699 | $3.99M | 0.04% | +18,772+62.7% | Added |
| Crestwood Advisors Group LLC | 48,807 | $4.00M | 0.07% | +100.0% | Added |
| Sanctuary Advisors, LLC | 49,062 | $4.02M | 0.02% | +62+0.1% | Added |
| Mill Creek Capital Advisors, LLC | 49,984 | $4.10M | 0.08% | +130.0% | Added |
| APG Asset Management N.V. | 58,821 | $4.11M | 0.01% | −3,779−6.0% | Reduced |
| MAI Capital Management | 52,560 | $4.31M | 0.02% | +49,097+1,417.8% | Added |
| Citigroup Inc | 52,911 | $4.34M | 0.00% | +10,882+25.9% | Added |
| HBK Sorce Advisory LLC | 51,710 | $4.37M | 0.10% | −6,200−10.7% | Reduced |
| CWM, LLC | 53,837 | $4.42M | 0.01% | +1,686+3.2% | Added |
| Russell Investments Group, Ltd. | 55,430 | $4.55M | 0.00% | −36,366−39.6% | Reduced |
| Illinois Municipal Retirement Fund | 56,216 | $4.61M | 0.06% | −13,755−19.7% | Reduced |
| Vident Advisory, LLC | 57,655 | $4.73M | 0.04% | +999+1.8% | Added |
| IFG Advisory, LLC | 59,147 | $4.85M | 0.21% | +2,500+4.4% | Added |
| Public Employees Retirement System of Ohio | 60,078 | $4.93M | 0.02% | −2,037−3.3% | Reduced |
| Prudential PLC | 60,311 | $4.95M | 0.04% | −1,322−2.1% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 63,051 | $5.17M | 0.01% | +2,743+4.5% | Added |
| ExodusPoint Capital Management, LP | 65,395 | $5.36M | 0.06% | +14,531+28.6% | Added |
| Southernsun Asset Management, LLC | 66,490 | $5.45M | 0.76% | −70.0% | Reduced |
| Los Angeles Capital Management LLC | 67,742 | $5.47M | 0.02% | −126,459−65.1% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 67,118 | $5.54M | 0.01% | −5,835−8.0% | Reduced |
| RK Asset Management, LLC | 67,759 | $5.56M | 5.24% | −1,380−2.0% | Reduced |
| Union Heritage Capital, LLC | 68,700 | $5.63M | 1.91% | 00.0% | Unchanged |
| Modera Wealth Management, LLC | 70,610 | $5.79M | 0.07% | −2,162−3.0% | Reduced |
| CBOE Vest Financial, LLC | 70,824 | $5.81M | 0.07% | +8,281+13.2% | Added |
| Taylor Hoffman Capital Management LLC | 71,222 | $5.84M | 1.77% | +957+1.4% | Added |
| Manufacturers Life Insurance Company, The | 71,882 | $5.90M | 0.00% | −1,814−2.5% | Reduced |
| Great West Life Assurance Co | 72,640 | $5.96M | 0.01% | +10,294+16.5% | Added |
| Chevy Chase Trust Holdings, Inc. | 75,994 | $6.23M | 0.02% | −2,241−2.9% | Reduced |
| Winton Group Ltd | 76,615 | $6.28M | 0.22% | +76,615 | New |
| Umb Bank N A | 76,712 | $6.29M | 0.08% | −897−1.2% | Reduced |
| Allianz Asset Management GmbH | 77,002 | $6.32M | 0.01% | −97,264−55.8% | Reduced |
| Verition Fund Management LLC | 77,571 | $6.36M | 0.03% | +50,629+187.9% | Added |
| Price T Rowe Associates Inc | 80,968 | $6.64M | 0.00% | +3,116+4.0% | Added |
| Thrive Wealth Management, LLC | 81,169 | $6.66M | 0.98% | +1,873+2.4% | Added |
| Martingale Asset Management L P | 85,767 | $7.03M | 0.18% | −131,137−60.5% | Reduced |
| Robeco Institutional Asset Management B.V. | 87,786 | $7.20M | 0.01% | −43,466−33.1% | Reduced |
| State of Wisconsin Investment Board | 88,440 | $7.25M | 0.02% | +2,759+3.2% | Added |
| Kathmere Capital Management, LLC | 92,934 | $7.62M | 0.51% | −88−0.1% | Reduced |
| Stifel Financial Corp | 96,685 | $7.93M | 0.01% | +64,544+200.8% | Added |
| California State Teachers Retirement System | 99,027 | $8.12M | 0.01% | −198−0.2% | Reduced |
| Schroder Investment Management Group | 100,359 | $8.35M | 0.01% | +662+0.7% | Added |
| Hahn Capital Management LLC | 101,877 | $8.36M | 4.51% | −6,490−6.0% | Reduced |
| Van Eck Associates Corp | 102,390 | $8.40M | 0.01% | +1,381+1.4% | Added |
| Quantinno Capital Management LP | 104,590 | $8.58M | 0.02% | −47,330−31.2% | Reduced |
| Bank of Montreal | 106,077 | $8.70M | 0.00% | −1,587−1.5% | Reduced |
| Wells Fargo & Company | 107,472 | $8.81M | 0.00% | −12,095−10.1% | Reduced |
| Creative Planning | 110,041 | $9.03M | 0.01% | +68,647+165.8% | Added |
| TD Asset Management Inc | 110,200 | $9.04M | 0.01% | −1,038−0.9% | Reduced |
| Truist Financial Corp | 111,295 | $9.13M | 0.01% | +2,670+2.5% | Added |
| New York State Teachers Retirement System | 111,829 | $9.17M | 0.02% | −4,326−3.7% | Reduced |
| State Board of Administration of Florida Retirement System | 116,370 | $9.54M | 0.02% | −8,460−6.8% | Reduced |
| Point72 Asset Management, L.P. | 118,712 | $9.74M | 0.02% | +118,712 | New |
| Engineers Gate Manager LP | 120,721 | $9.90M | 0.12% | +23,627+24.3% | Added |
| Teacher Retirement System of Texas | 120,925 | $9.92M | 0.03% | +18,630+18.2% | Added |
| Capital Fund Management S.A. | 121,390 | $9.96M | 0.09% | +26,105+27.4% | Added |
| Alliancebernstein L.P. | 124,986 | $10.3M | 0.00% | −4,989−3.8% | Reduced |
| KLP Kapitalforvaltning AS | 127,200 | $10.5M | 0.04% | +300+0.2% | Added |
| American Century Companies Inc | 128,507 | $10.5M | 0.01% | +16,370+14.6% | Added |
| Toroso Investments, LLC | 133,322 | $10.9M | 0.05% | +28,135+26.7% | Added |
| M&G Plc | 134,004 | $11.0M | 0.06% | +11,496+9.4% | Added |
| Jane Street Group, LLC | 137,237 | $11.3M | 0.01% | +26,921+24.4% | Added |
| King Luther Capital Management Corp | 137,439 | $11.3M | 0.05% | +12,713+10.2% | Added |
| Schonfeld Strategic Advisors LLC | 147,300 | $12.1M | 0.06% | −8,088−5.2% | Reduced |
| LPL Financial LLC | 148,123 | $12.1M | 0.00% | +35,568+31.6% | Added |
| Janney Montgomery Scott LLC | 148,911 | $12.2M | 0.03% | +9,624+6.9% | Added |
| Rockefeller Capital Management L.P. | 150,008 | $12.3M | 0.02% | +30,122+25.1% | Added |
| Advisor Group Holdings, Inc. | 150,076 | $12.3M | 0.02% | +5,857+4.1% | Added |
| Citadel Advisors LLC | 152,276 | $12.5M | 0.01% | −54,422−26.3% | Reduced |
| Foyston, Gordon, & Payne Inc | 172,580 | $14.2M | 3.08% | +17,067+11.0% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $14.2M | 0.11% | 00.0% | Unchanged |
| Nuveen, LLC | 173,330 | $14.2M | 0.00% | −62,783−26.6% | Reduced |
| Vestcor Inc | 174,337 | $14.3M | 0.41% | 00.0% | Unchanged |