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 2025
Institutional positions in SEI Investments Co as of Sep 30, 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
- 550
- −6 vs. Q2 2025
- Shares held
- 88.5M
- −812.5K (−0.9%) vs. Q2 2025
- Total value
- $7.51B
- −$521.0M (−6.5%) vs. Q2 2025
- New holders
- 60
- 209 more added
- Sold out
- 66
- 171 more reduced
8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Umb Bank N A | 77,609 | $6.59M | 0.10% | +83+0.1% | Added |
| Manufacturers Life Insurance Company, The | 73,696 | $6.25M | 0.01% | −3,278−4.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 72,953 | $6.19M | 0.01% | +13,423+22.5% | Added |
| Modera Wealth Management, LLC | 72,772 | $6.17M | 0.07% | −2,947−3.9% | Reduced |
| Cerity Partners LLC | 72,036 | $6.11M | 0.01% | −10,397−12.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 71,629 | $6.08M | 0.10% | −28,967−28.8% | Reduced |
| Taylor Hoffman Capital Management LLC | 70,265 | $5.96M | 1.88% | +1,028+1.5% | Added |
| Illinois Municipal Retirement Fund | 69,971 | $5.94M | 0.08% | +23,018+49.0% | Added |
| RK Asset Management, LLC | 69,139 | $5.87M | 5.33% | −75−0.1% | Reduced |
| Union Heritage Capital, LLC | 68,700 | $5.83M | 1.89% | 00.0% | Unchanged |
| Southernsun Asset Management, LLC | 66,497 | $5.64M | 0.73% | −453−0.7% | Reduced |
| Summit Wealth Group LLC | 115,735 | $5.52M | 0.76% | +115,735 | New |
| Abn Amro Investment Solutions | 64,295 | $5.46M | 0.11% | −43,555−40.4% | Reduced |
| Jain Global LLC | 64,248 | $5.45M | 0.07% | +50,833+378.9% | Added |
| Banco Santander, S.A. | 63,920 | $5.42M | 0.05% | 00.0% | Unchanged |
| Ashton Thomas Private Wealth, LLC | 63,902 | $5.42M | 0.14% | +49,676+349.2% | Added |
| HSBC Holdings PLC | 63,316 | $5.35M | 0.00% | −3,245−4.9% | Reduced |
| Great West Life Assurance Co | 62,346 | $5.32M | 0.01% | −257−0.4% | Reduced |
| CBOE Vest Financial, LLC | 62,543 | $5.31M | 0.07% | +8,217+15.1% | Added |
| Horizon Investments, LLC | 62,493 | $5.30M | 0.07% | +24,952+66.5% | Added |
| Amundi | 62,010 | $5.29M | 0.00% | −95,847−60.7% | Reduced |
| Public Employees Retirement System of Ohio | 62,115 | $5.27M | 0.02% | −2,794−4.3% | Reduced |
| Prudential PLC | 61,633 | $5.23M | 0.04% | +57,953+1,574.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 60,308 | $5.12M | 0.02% | +895+1.5% | Added |
| Tudor Investment Corp Et Al | 56,699 | $4.81M | 0.03% | +56,699 | New |
| Vident Advisory, LLC | 56,656 | $4.81M | 0.05% | +37,996+203.6% | Added |
| IFG Advisory, LLC | 56,647 | $4.81M | 0.22% | +594+1.1% | Added |
| HBK Sorce Advisory LLC | 57,910 | $4.78M | 0.12% | −240.0% | Reduced |
| Court Place Advisors, LLC | 56,150 | $4.76M | 1.43% | 00.0% | Unchanged |
| Danske Bank A/S | 53,447 | $4.53M | 0.01% | −22,124−29.3% | Reduced |
| APG Asset Management N.V. | 62,600 | $4.52M | 0.01% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 52,473 | $4.45M | 0.01% | +1,830+3.6% | Added |
| CWM, LLC | 52,151 | $4.42M | 0.01% | −1,686−3.1% | Reduced |
| Magnetar Financial LLC | 51,675 | $4.38M | 0.03% | +38,601+295.3% | Added |
| ExodusPoint Capital Management, LP | 50,864 | $4.32M | 0.06% | +40,662+398.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 50,795 | $4.31M | 0.01% | +7,552+17.5% | Added |
| Mill Creek Capital Advisors, LLC | 49,971 | $4.24M | 0.09% | +49,971 | New |
| Prudential Financial Inc | 49,736 | $4.22M | 0.01% | +30,551+159.2% | Added |
| Holocene Advisors, LP | 49,163 | $4.17M | 0.01% | +49,163 | New |
| Polar Asset Management Partners Inc. | 49,043 | $4.16M | 0.08% | +37,143+312.1% | Added |
| Sanctuary Advisors, LLC | 49,000 | $4.16M | 0.02% | +7,883+19.2% | Added |
| Crestwood Advisors Group LLC | 48,797 | $4.14M | 0.07% | −152,396−75.7% | Reduced |
| MetLife Investment Management | 48,458 | $4.11M | 0.02% | −2,643−5.2% | Reduced |
| Pinebridge Investments, L.P. | 48,268 | $4.10M | 0.03% | −16,418−25.4% | Reduced |
| KBC Group NV | 47,885 | $4.06M | 0.01% | +1,884+4.1% | Added |
| Treasurer of the State of North Carolina | 46,766 | $3.97M | 0.01% | −139,563−74.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 46,210 | $3.92M | 0.03% | +6,537+16.5% | Added |
| Janus Henderson Group PLC | 46,100 | $3.91M | 0.00% | 00.0% | Unchanged |
| Moran Wealth Management, LLC | 45,963 | $3.90M | 0.12% | −1,275−2.7% | Reduced |
| Amalgamated Bank | 45,763 | $3.88M | 0.03% | −132−0.3% | Reduced |
| Nisa Investment Advisors, LLC | 43,835 | $3.72M | 0.01% | 00.0% | Unchanged |
| Mutual of America Capital Management LLC | 43,392 | $3.68M | 0.04% | −3,659−7.8% | Reduced |
| Bokf, NA | 43,233 | $3.67M | 0.06% | −47−0.1% | Reduced |
| New York State Common Retirement Fund | 43,100 | $3.66M | 0.00% | −3,400−7.3% | Reduced |
| Henshaw Capital LLC | 42,843 | $3.64M | 0.14% | 00.0% | Unchanged |
| Citigroup Inc | 42,029 | $3.57M | 0.00% | +562+1.4% | Added |
| Zacks Investment Management | 41,915 | $3.56M | 0.03% | +41,915 | New |
| Graham Capital Management, L.P. | 41,738 | $3.54M | 0.13% | +3,434+9.0% | Added |
| Creative Planning | 41,394 | $3.51M | 0.00% | +25,670+163.3% | Added |
| CWM Advisors, LLC | 41,194 | $3.50M | 0.34% | +5,803+16.4% | Added |
| State of Tennessee, Treasury Department | 40,498 | $3.44M | 0.01% | 00.0% | Unchanged |
| Atria Investments LLC | 40,138 | $3.41M | 0.04% | +831+2.1% | Added |
| US Bancorp | 38,431 | $3.26M | 0.00% | +227+0.6% | Added |
| Ingalls & Snyder LLC | 38,283 | $3.25M | 0.11% | +2,198+6.1% | Added |
| Pathstone Holdings, LLC | 38,155 | $3.24M | 0.01% | +1,543+4.2% | Added |
| Wealth Alliance Advisory Group, LLC | 37,504 | $3.18M | 0.57% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 37,115 | $3.15M | 0.08% | +33,530+935.3% | Added |
| Trexquant Investment LP | 36,702 | $3.11M | 0.03% | −126,947−77.6% | Reduced |
| Quest Partners LLC | 36,345 | $3.08M | 0.20% | +4,450+14.0% | Added |
| Morningstar Investment Management LLC | 36,154 | $3.07M | 0.11% | +32,448+875.6% | Added |
| Crossmark Global Holdings, Inc. | 35,545 | $3.02M | 0.05% | +26,137+277.8% | Added |
| NJ State Employees Deferred Compensation Plan | 35,400 | $3.00M | 0.33% | 00.0% | Unchanged |
| Sepio Capital, LP | 33,643 | $2.85M | 0.17% | −355−1.0% | Reduced |
| Handelsbanken Fonder AB | 33,500 | $2.84M | 0.01% | +8,300+32.9% | Added |
| Diversified Trust Co | 33,209 | $2.82M | 0.06% | −2,826−7.8% | Reduced |
| TD Waterhouse Canada Inc. | 32,806 | $2.76M | 0.02% | −1,297−3.8% | Reduced |
| Stifel Financial Corp | 32,141 | $2.73M | 0.00% | −1,706−5.0% | Reduced |
| Arizona State Retirement System | 31,307 | $2.66M | 0.01% | +129+0.4% | Added |
| JustInvest LLC | 31,102 | $2.64M | 0.03% | −1,602−4.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 31,054 | $2.63M | 0.02% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 31,021 | $2.63M | 0.01% | +19,035+158.8% | Added |
| State of New Jersey Common Pension Fund D | 30,872 | $2.62M | 0.01% | +2,826+10.1% | Added |
| Yousif Capital Management, LLC | 30,803 | $2.61M | 0.03% | −2,598−7.8% | Reduced |
| Intech Investment Management LLC | 29,927 | $2.54M | 0.02% | +25,097+519.6% | Added |
| Johnson Investment Counsel Inc | 29,852 | $2.53M | 0.02% | +153+0.5% | Added |
| The PNC Financial Services Group, Inc. | 29,388 | $2.49M | 0.00% | +2,431+9.0% | Added |
| Elo Mutual Pension Insurance Co | 28,892 | $2.45M | 0.04% | +15,729+119.5% | Added |
| Brandes Investment Partners, LP | 28,820 | $2.45M | 0.02% | +3,509+13.9% | Added |
| Comerica Bank | 28,014 | $2.38M | 0.01% | −2,459−8.1% | Reduced |
| DGS Capital Management, LLC | 27,501 | $2.33M | 0.43% | +2,780+11.2% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 27,042 | $2.29M | 0.02% | +26,302+3,554.3% | Added |
| Verition Fund Management LLC | 26,942 | $2.29M | 0.01% | −33,388−55.3% | Reduced |
| Canada Pension Plan Investment Board | 26,700 | $2.27M | 0.00% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 26,688 | $2.26M | 0.01% | −67,229−71.6% | Reduced |
| Clark Capital Management Group, Inc. | 26,544 | $2.25M | 0.01% | +10,588+66.4% | Added |
| Smithbridge Asset Management Inc | 26,201 | $2.22M | 0.32% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 26,200 | $2.22M | 0.04% | −400−1.5% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 24,949 | $2.12M | 0.01% | −414−1.6% | Reduced |
| Convergence Investment Partners, LLC | 24,464 | $2.08M | 0.47% | +4,541+22.8% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 24,113 | $2.05M | 0.01% | −195−0.8% | Reduced |