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 11 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 |
|---|---|---|---|---|---|
| Smithbridge Asset Management Inc | 26,201 | $2.35M | 0.41% | 00.0% | Unchanged |
| Envestnet Portfolio Solutions, Inc. | 25,363 | $2.28M | 0.01% | +13,760+118.6% | Added |
| Brandes Investment Partners, LP | 25,311 | $2.27M | 0.02% | +3,723+17.2% | Added |
| Point72 Hong Kong Ltd | 25,260 | $2.27M | 0.16% | +25,260 | New |
| Handelsbanken Fonder AB | 25,200 | $2.26M | 0.01% | −4,700−15.7% | Reduced |
| DGS Capital Management, LLC | 24,721 | $2.22M | 0.46% | +5,168+26.4% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 24,308 | $2.18M | 0.01% | +1,265+5.5% | Added |
| Sterling Capital Management LLC | 24,145 | $2.17M | 0.03% | +2,555+11.8% | Added |
| Investment Management Corp of Ontario | 23,434 | $2.11M | 0.03% | −3,116−11.7% | Reduced |
| State of Michigan Retirement System | 22,788 | $2.05M | 0.01% | −2,336−9.3% | Reduced |
| Linden Thomas Advisory Services, LLC | 22,680 | $2.04M | 0.22% | −153−0.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 22,504 | $2.02M | 0.00% | −11,605−34.0% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 20,774 | $1.93M | 0.00% | −527−2.5% | Reduced |
| Capstone Investment Advisors, LLC | 21,474 | $1.93M | 0.02% | +21,474 | New |
| Captrust Financial Advisors | 21,470 | $1.93M | 0.00% | +430+2.0% | Added |
| First Citizens Bank & Trust Co | 21,324 | $1.92M | 0.03% | +11,373+114.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 21,124 | $1.90M | 0.03% | −309−1.4% | Reduced |
| Churchill Management Corp | 20,952 | $1.88M | 0.02% | −403−1.9% | Reduced |
| New Mexico Educational Retirement Board | 20,800 | $1.87M | 0.06% | 00.0% | Unchanged |
| Davenport & Co LLC | 20,787 | $1.87M | 0.01% | +25+0.1% | Added |
| Aigen Investment Management, LP | 20,570 | $1.85M | 0.25% | +17,789+639.7% | Added |
| Moors & Cabot, Inc. | 20,299 | $1.82M | 0.08% | +48+0.2% | Added |
| ISAM Funds (UK) Ltd | 20,072 | $1.80M | 0.40% | +20,072 | New |
| Convergence Investment Partners, LLC | 19,923 | $1.79M | 0.45% | −4,472−18.3% | Reduced |
| Ontario Teachers Pension Plan Board | 19,640 | $1.76M | 0.04% | +3,943+25.1% | Added |
| Lecap Asset Management Ltd | 19,523 | $1.75M | 0.62% | +13,185+208.0% | Added |
| Oregon Public Employees Retirement Fund | 19,386 | $1.74M | 0.03% | −200−1.0% | Reduced |
| Prudential Financial Inc | 19,185 | $1.72M | 0.00% | −31,023−61.8% | Reduced |
| CI Private Wealth, LLC | 18,773 | $1.69M | 0.00% | +6,438+52.2% | Added |
| Nomura Asset Management Co Ltd | 18,715 | $1.68M | 0.00% | −32,744−63.6% | Reduced |
| Vident Advisory, LLC | 18,660 | $1.68M | 0.02% | −6,978−27.2% | Reduced |
| Ameritas Investment Partners, Inc. | 18,369 | $1.65M | 0.05% | −598−3.2% | Reduced |
| Lazard Asset Management LLC | 18,200 | $1.64M | 0.00% | −423−2.3% | Reduced |
| Parallel Advisors, LLC | 17,982 | $1.62M | 0.03% | +2,264+14.4% | Added |
| Axq Capital, LP | 17,934 | $1.61M | 0.52% | +17,934 | New |
| Oppenheimer Asset Management Inc. | 17,149 | $1.54M | 0.02% | −439−2.5% | Reduced |
| Utah Retirement Systems | 16,772 | $1.51M | 0.02% | +143+0.9% | Added |
| Voya Investment Management LLC | 16,746 | $1.50M | 0.00% | +30+0.2% | Added |
| Toronto Dominion Bank | 16,517 | $1.49M | 0.00% | −16,306−49.7% | Reduced |
| Clark Capital Management Group, Inc. | 15,956 | $1.43M | 0.01% | +761+5.0% | Added |
| Pictet Asset Management Holding SA | 15,882 | $1.43M | 0.00% | −41,898−72.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 15,759 | $1.42M | 0.09% | −3,662−18.9% | Reduced |
| Creative Planning | 15,724 | $1.41M | 0.00% | +7,115+82.6% | Added |
| Centiva Capital, LP | 15,307 | $1.38M | 0.09% | +7,340+92.1% | Added |
| Lafayette Investments, Inc. | 15,274 | $1.37M | 0.28% | −145−0.9% | Reduced |
| Redwood Investment Management, LLC | 15,181 | $1.36M | 0.14% | −1,744−10.3% | Reduced |
| Brinker Capital Investments, LLC | 14,803 | $1.33M | 0.01% | +3,450+30.4% | Added |
| BNP Paribas Arbitrage, SA | 14,694 | $1.32M | 0.00% | −72,168−83.1% | Reduced |
| Gotham Asset Management, LLC | 14,555 | $1.31M | 0.01% | 00.0% | Unchanged |
| Donald L. Hagan, LLC | 14,311 | $1.29M | 0.64% | −424−2.9% | Reduced |
| Ashton Thomas Private Wealth, LLC | 14,226 | $1.28M | 0.05% | −485−3.3% | Reduced |
| Pensionfund Sabic | 14,100 | $1.27M | 0.36% | −1,500−9.6% | Reduced |
| Brevan Howard Capital Management LP | 13,935 | $1.25M | 0.01% | +13,935 | New |
| Point72 (DIFC) Ltd | 13,895 | $1.25M | 0.10% | +13,895 | New |
| Sequoia Financial Advisors, LLC | 13,844 | $1.24M | 0.01% | +13,844 | New |
| Lido Advisors, LLC | 13,617 | $1.22M | 0.01% | +13,617 | New |
| Jain Global LLC | 13,415 | $1.21M | 0.02% | +13,415 | New |
| Grantham, Mayo, Van Otterloo & Co. LLC | 13,224 | $1.19M | 0.00% | +5,000+60.8% | Added |
| Elo Mutual Pension Insurance Co | 13,163 | $1.18M | 0.02% | +1,235+10.4% | Added |
| Magnetar Financial LLC | 13,074 | $1.17M | 0.01% | +13,074 | New |
| New Age Alpha Advisors, LLC | 12,767 | $1.15M | 0.05% | +12,767 | New |
| Brown Advisory Inc | 12,729 | $1.14M | 0.00% | −2,210−14.8% | Reduced |
| Mackenzie Financial Corp | 12,623 | $1.13M | 0.00% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 12,207 | $1.10M | 0.00% | −38,870−76.1% | Reduced |
| Buckingham Strategic Partners | 12,096 | $1.09M | 0.01% | +1,403+13.1% | Added |
| SG Americas Securities, LLC | 11,986 | $1.08M | 0.00% | +6,498+118.4% | Added |
| Polar Asset Management Partners Inc. | 11,900 | $1.07M | 0.03% | +11,900 | New |
| HighTower Advisors, LLC | 11,731 | $1.05M | 0.00% | +234+2.0% | Added |
| Aviva PLC | 11,550 | $1.04M | 0.00% | +3,613+45.5% | Added |
| Marshall Financial Group LLC | 11,163 | $1.03M | 0.20% | +11,163 | New |
| Erste Asset Management GmbH | 11,400 | $1.02M | 0.01% | +11,400 | New |
| Novem Group | 11,305 | $1.02M | 0.13% | +11,305 | New |
| Xponance, Inc. | 11,107 | $998.1K | 0.01% | −5,966−34.9% | Reduced |
| Headlands Technologies LLC | 11,077 | $995.4K | 0.12% | −4,204−27.5% | Reduced |
| 1832 Asset Management L.P. | 11,043 | $992.3K | 0.00% | −2,582−19.0% | Reduced |
| LMR Partners LLP | 10,957 | $984.6K | 0.02% | +10,957 | New |
| Cetera Investment Advisers | 10,890 | $978.5K | 0.00% | +4,308+65.5% | Added |
| Mercer Global Advisors Inc | 10,673 | $959.2K | 0.00% | +3,330+45.3% | Added |
| Gsa Capital Partners LLP | 10,667 | $959.0K | 0.07% | +10,667 | New |
| Dynamic Technology Lab Private Ltd | 10,589 | $952.0K | 0.13% | +10,589 | New |
| 111 Capital | 10,467 | $940.6K | 0.16% | +10,467 | New |
| Federated Hermes, Inc. | 10,420 | $936.3K | 0.00% | −434−4.0% | Reduced |
| BancorpSouth Bank | 10,409 | $935.4K | 0.06% | −142−1.3% | Reduced |
| Commerce Bank | 10,271 | $923.0K | 0.01% | +19+0.2% | Added |
| MQS Management LLC | 10,227 | $919.0K | 0.51% | +2,544+33.1% | Added |
| ExodusPoint Capital Management, LP | 10,202 | $917.0K | 0.01% | −93,402−90.2% | Reduced |
| New York Life Investment Management LLC | 10,112 | $908.7K | 0.01% | −1,017−9.1% | Reduced |
| RBF Capital, LLC | 10,000 | $898.6K | 0.04% | 00.0% | Unchanged |
| Logan Capital Management Inc | 9,700 | $871.6K | 0.04% | 00.0% | Unchanged |
| Patton Albertson Miller Group, LLC | 9,650 | $867.1K | 0.11% | 00.0% | Unchanged |
| Landscape Capital Management, L.L.C. | 9,480 | $851.9K | 0.07% | +9,480 | New |
| Crossmark Global Holdings, Inc. | 9,408 | $845.4K | 0.01% | +69+0.7% | Added |
| Patten & Patten Inc | 9,400 | $844.7K | 0.05% | −100−1.1% | Reduced |
| Pacer Advisors, Inc. | 9,224 | $828.9K | 0.00% | +3,691+66.7% | Added |
| Cresset Asset Management, LLC | 9,138 | $821.1K | 0.00% | −4,622−33.6% | Reduced |
| Harrell Investment Partners, LLC | 9,032 | $811.6K | 0.21% | +9,032 | New |
| NBC Securities, Inc. | 8,999 | $808.0K | 0.07% | +9+0.1% | Added |
| South Dakota Investment Council | 8,528 | $766.0K | 0.01% | 00.0% | Unchanged |
| Mariner, LLC | 8,429 | $757.5K | 0.00% | +3,359+66.3% | Added |
| Glenmede Investment Management, LP | 8,425 | $757.1K | 0.00% | +8,425 | New |