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, Q2 2025
Institutional positions in SEI Investments Co as of Jun 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
- 564
- +26 vs. Q1 2025
- Shares held
- 90.1M
- −3.55M (−3.8%) vs. Q1 2025
- Total value
- $8.09B
- +$829.7M (+11.4%) vs. Q1 2025
- New holders
- 105
- 184 more added
- Sold out
- 79
- 197 more reduced
8 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Asset Management One Co.,Ltd. | 12,207 | $1.10M | 0.00% | −38,870−76.1% | Reduced |
| Mackenzie Financial Corp | 12,623 | $1.13M | 0.00% | 00.0% | Unchanged |
| Brown Advisory Inc | 12,729 | $1.14M | 0.00% | −2,210−14.8% | Reduced |
| New Age Alpha Advisors, LLC | 12,767 | $1.15M | 0.05% | +12,767 | New |
| Magnetar Financial LLC | 13,074 | $1.17M | 0.01% | +13,074 | New |
| Elo Mutual Pension Insurance Co | 13,163 | $1.18M | 0.02% | +1,235+10.4% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 13,224 | $1.19M | 0.00% | +5,000+60.8% | Added |
| Jain Global LLC | 13,415 | $1.21M | 0.02% | +13,415 | New |
| Lido Advisors, LLC | 13,617 | $1.22M | 0.01% | +13,617 | New |
| Sequoia Financial Advisors, LLC | 13,844 | $1.24M | 0.01% | +13,844 | New |
| Point72 (DIFC) Ltd | 13,895 | $1.25M | 0.10% | +13,895 | New |
| Brevan Howard Capital Management LP | 13,935 | $1.25M | 0.01% | +13,935 | New |
| Pensionfund Sabic | 14,100 | $1.27M | 0.36% | −1,500−9.6% | Reduced |
| Ashton Thomas Private Wealth, LLC | 14,226 | $1.28M | 0.05% | −485−3.3% | Reduced |
| Donald L. Hagan, LLC | 14,311 | $1.29M | 0.64% | −424−2.9% | Reduced |
| Gotham Asset Management, LLC | 14,555 | $1.31M | 0.01% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 14,694 | $1.32M | 0.00% | −72,168−83.1% | Reduced |
| Brinker Capital Investments, LLC | 14,803 | $1.33M | 0.01% | +3,450+30.4% | Added |
| Redwood Investment Management, LLC | 15,181 | $1.36M | 0.14% | −1,744−10.3% | Reduced |
| Lafayette Investments, Inc. | 15,274 | $1.37M | 0.28% | −145−0.9% | Reduced |
| Centiva Capital, LP | 15,307 | $1.38M | 0.09% | +7,340+92.1% | Added |
| Creative Planning | 15,724 | $1.41M | 0.00% | +7,115+82.6% | Added |
| Campbell & CO Investment Adviser LLC | 15,759 | $1.42M | 0.09% | −3,662−18.9% | Reduced |
| Pictet Asset Management Holding SA | 15,882 | $1.43M | 0.00% | −41,898−72.5% | Reduced |
| Clark Capital Management Group, Inc. | 15,956 | $1.43M | 0.01% | +761+5.0% | Added |
| Toronto Dominion Bank | 16,517 | $1.49M | 0.00% | −16,306−49.7% | Reduced |
| Voya Investment Management LLC | 16,746 | $1.50M | 0.00% | +30+0.2% | Added |
| Utah Retirement Systems | 16,772 | $1.51M | 0.02% | +143+0.9% | Added |
| Oppenheimer Asset Management Inc. | 17,149 | $1.54M | 0.02% | −439−2.5% | Reduced |
| Axq Capital, LP | 17,934 | $1.61M | 0.52% | +17,934 | New |
| Parallel Advisors, LLC | 17,982 | $1.62M | 0.03% | +2,264+14.4% | Added |
| Lazard Asset Management LLC | 18,200 | $1.64M | 0.00% | −423−2.3% | Reduced |
| Ameritas Investment Partners, Inc. | 18,369 | $1.65M | 0.05% | −598−3.2% | Reduced |
| Vident Advisory, LLC | 18,660 | $1.68M | 0.02% | −6,978−27.2% | Reduced |
| Nomura Asset Management Co Ltd | 18,715 | $1.68M | 0.00% | −32,744−63.6% | Reduced |
| CI Private Wealth, LLC | 18,773 | $1.69M | 0.00% | +6,438+52.2% | Added |
| Prudential Financial Inc | 19,185 | $1.72M | 0.00% | −31,023−61.8% | Reduced |
| Oregon Public Employees Retirement Fund | 19,386 | $1.74M | 0.03% | −200−1.0% | Reduced |
| Lecap Asset Management Ltd | 19,523 | $1.75M | 0.62% | +13,185+208.0% | Added |
| Ontario Teachers Pension Plan Board | 19,640 | $1.76M | 0.04% | +3,943+25.1% | Added |
| Convergence Investment Partners, LLC | 19,923 | $1.79M | 0.45% | −4,472−18.3% | Reduced |
| ISAM Funds (UK) Ltd | 20,072 | $1.80M | 0.40% | +20,072 | New |
| Moors & Cabot, Inc. | 20,299 | $1.82M | 0.08% | +48+0.2% | Added |
| Aigen Investment Management, LP | 20,570 | $1.85M | 0.25% | +17,789+639.7% | Added |
| Davenport & Co LLC | 20,787 | $1.87M | 0.01% | +25+0.1% | Added |
| New Mexico Educational Retirement Board | 20,800 | $1.87M | 0.06% | 00.0% | Unchanged |
| Churchill Management Corp | 20,952 | $1.88M | 0.02% | −403−1.9% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 21,124 | $1.90M | 0.03% | −309−1.4% | Reduced |
| First Citizens Bank & Trust Co | 21,324 | $1.92M | 0.03% | +11,373+114.3% | Added |
| Captrust Financial Advisors | 21,470 | $1.93M | 0.00% | +430+2.0% | Added |
| Capstone Investment Advisors, LLC | 21,474 | $1.93M | 0.02% | +21,474 | New |
| Wealth Enhancement Advisory Services, LLC | 20,774 | $1.93M | 0.00% | −527−2.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 22,504 | $2.02M | 0.00% | −11,605−34.0% | Reduced |
| Linden Thomas Advisory Services, LLC | 22,680 | $2.04M | 0.22% | −153−0.7% | Reduced |
| State of Michigan Retirement System | 22,788 | $2.05M | 0.01% | −2,336−9.3% | Reduced |
| Investment Management Corp of Ontario | 23,434 | $2.11M | 0.03% | −3,116−11.7% | Reduced |
| Sterling Capital Management LLC | 24,145 | $2.17M | 0.03% | +2,555+11.8% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 24,308 | $2.18M | 0.01% | +1,265+5.5% | Added |
| DGS Capital Management, LLC | 24,721 | $2.22M | 0.46% | +5,168+26.4% | Added |
| Handelsbanken Fonder AB | 25,200 | $2.26M | 0.01% | −4,700−15.7% | Reduced |
| Point72 Hong Kong Ltd | 25,260 | $2.27M | 0.16% | +25,260 | New |
| Brandes Investment Partners, LP | 25,311 | $2.27M | 0.02% | +3,723+17.2% | Added |
| Envestnet Portfolio Solutions, Inc. | 25,363 | $2.28M | 0.01% | +13,760+118.6% | Added |
| Smithbridge Asset Management Inc | 26,201 | $2.35M | 0.41% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 26,600 | $2.39M | 0.04% | −400−1.5% | Reduced |
| Canada Pension Plan Investment Board | 26,700 | $2.40M | 0.00% | −16,700−38.5% | Reduced |
| The PNC Financial Services Group, Inc. | 26,957 | $2.42M | 0.00% | +337+1.3% | Added |
| State of New Jersey Common Pension Fund D | 28,046 | $2.52M | 0.01% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 28,418 | $2.55M | 0.02% | +3,047+12.0% | Added |
| SummitTX Capital, L.P. | 28,795 | $2.59M | 0.11% | −13,537−32.0% | Reduced |
| Johnson Investment Counsel Inc | 29,699 | $2.67M | 0.02% | −92−0.3% | Reduced |
| Gries Financial LLC | 29,847 | $2.68M | 0.49% | +1,773+6.3% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 30,195 | $2.71M | 0.48% | +30,195 | New |
| STRS Ohio | 30,411 | $2.73M | 0.01% | +577+1.9% | Added |
| Comerica Bank | 30,473 | $2.74M | 0.01% | +446+1.5% | Added |
| Neuberger Berman Group LLC | 30,516 | $2.74M | 0.00% | +3,156+11.5% | Added |
| Teachers Retirement System of the State of Kentucky | 31,054 | $2.79M | 0.02% | 00.0% | Unchanged |
| Arizona State Retirement System | 31,178 | $2.80M | 0.02% | −509−1.6% | Reduced |
| Quest Partners LLC | 31,895 | $2.87M | 0.28% | −1,824−5.4% | Reduced |
| JustInvest LLC | 32,704 | $2.94M | 0.03% | +6,041+22.7% | Added |
| Yousif Capital Management, LLC | 33,401 | $3.00M | 0.03% | −1,185−3.4% | Reduced |
| Stifel Financial Corp | 33,847 | $3.04M | 0.00% | +17,305+104.6% | Added |
| Sepio Capital, LP | 33,998 | $3.06M | 0.22% | −3,143−8.5% | Reduced |
| Deutsche Bank AG | 34,217 | $3.07M | 0.00% | −181,995−84.2% | Reduced |
| Susquehanna Fundamental Investments, LLC | 34,241 | $3.08M | 0.08% | −4,202−10.9% | Reduced |
| TD Waterhouse Canada Inc. | 34,103 | $3.12M | 0.02% | +21,643+173.7% | Added |
| CWM Advisors, LLC | 35,391 | $3.18M | 0.35% | +7,291+25.9% | Added |
| NJ State Employees Deferred Compensation Plan | 35,400 | $3.18M | 0.38% | 00.0% | Unchanged |
| Diversified Trust Co | 36,035 | $3.24M | 0.07% | +26+0.1% | Added |
| Ingalls & Snyder LLC | 36,085 | $3.24M | 0.12% | −20−0.1% | Reduced |
| Swiss Life Asset Management Ltd | 36,301 | $3.26M | 0.02% | +18,931+109.0% | Added |
| Susquehanna International Group, LLP | 36,588 | $3.29M | 0.01% | +23,972+190.0% | Added |
| Pathstone Holdings, LLC | 36,612 | $3.29M | 0.01% | −12,631−25.7% | Reduced |
| Wealth Alliance Advisory Group, LLC | 37,504 | $3.37M | 0.64% | 00.0% | Unchanged |
| Horizon Investments, LLC | 37,541 | $3.37M | 0.05% | +37,513+133,975.0% | Added |
| Marshall Wace, LLP | 37,760 | $3.39M | 0.00% | +37,760 | New |
| US Bancorp | 38,204 | $3.43M | 0.00% | +1,433+3.9% | Added |
| Graham Capital Management, L.P. | 38,304 | $3.44M | 0.10% | −14,815−27.9% | Reduced |
| Kingsview Wealth Management, LLC | 38,452 | $3.46M | 0.06% | +506+1.3% | Added |
| Thrive Wealth Management, LLC | 38,833 | $3.49M | 0.56% | −2,286−5.6% | Reduced |