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 2021
Institutional positions in SEI Investments Co as of Jun 30, 2021. 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
- 440
- +1 vs. Q1 2021
- Shares held
- 97.6M
- −282.9K (−0.3%) vs. Q1 2021
- Total value
- $6.04B
- +$84.4M (+1.4%) vs. Q1 2021
- New holders
- 46
- 148 more added
- Sold out
- 45
- 150 more reduced
4 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| South Dakota Investment Council | 81,981 | $5.08M | 0.09% | +36,220+79.2% | Added |
| BNP Paribas Arbitrage, SA | 81,406 | $5.04M | 0.01% | +4,407+5.7% | Added |
| HSBC Holdings PLC | 80,559 | $5.00M | 0.01% | +22,041+37.7% | Added |
| Russell Investments Group, Ltd. | 79,048 | $4.90M | 0.01% | +36,845+87.3% | Added |
| Banco Santander, S.A. | 77,090 | $4.78M | 0.03% | +12,040+18.5% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 75,883 | $4.70M | 0.04% | +21,700+40.0% | Added |
| Sepio Capital, LP | 75,492 | $4.68M | 0.39% | +3,309+4.6% | Added |
| Worldquant Millennium Advisors LLC | 74,490 | $4.62M | 0.10% | 00.0% | Unchanged |
| Voya Investment Management LLC | 69,654 | $4.32M | 0.01% | +1,633+2.4% | Added |
| RK Asset Management, LLC | 66,025 | $4.09M | 3.54% | −50.0% | Reduced |
| State of New Jersey Common Pension Fund D | 65,089 | $4.03M | 0.01% | −26,452−28.9% | Reduced |
| Comerica Bank | 66,017 | $4.00M | 0.02% | −1,719−2.5% | Reduced |
| Putnam Investments LLC | 63,891 | $3.96M | 0.01% | −2,967−4.4% | Reduced |
| Citadel Advisors LLC | 63,205 | $3.92M | 0.00% | +13,331+26.7% | Added |
| Public Employees Retirement System of Ohio | 62,522 | $3.87M | 0.01% | +926+1.5% | Added |
| KBC Group NV | 62,145 | $3.85M | 0.01% | −282−0.5% | Reduced |
| Rafferty Asset Management, LLC | 62,028 | $3.84M | 0.02% | +5,224+9.2% | Added |
| Union Heritage Capital, LLC | 61,550 | $3.81M | 1.78% | 00.0% | Unchanged |
| Ingalls & Snyder LLC | 60,420 | $3.74M | 0.17% | −800−1.3% | Reduced |
| Cubist Systematic Strategies, LLC | 60,145 | $3.73M | 0.04% | −13,278−18.1% | Reduced |
| Bridgewater Associates, LP | 59,764 | $3.70M | 0.02% | +4,409+8.0% | Added |
| MetLife Investment Management | 59,227 | $3.67M | 0.03% | −2,302−3.7% | Reduced |
| Oregon Public Employees Retirement Fund | 58,078 | $3.60M | 0.04% | +2,893+5.2% | Added |
| Voloridge Investment Management, LLC | 57,622 | $3.57M | 0.02% | −62,177−51.9% | Reduced |
| Price T Rowe Associates Inc | 57,574 | $3.57M | 0.00% | −1,718−2.9% | Reduced |
| Glenmede Trust Co NA | 56,720 | $3.51M | 0.02% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 56,290 | $3.49M | 0.01% | +1,461+2.7% | Added |
| Redwood Investment Management, LLC | 55,476 | $3.44M | 0.56% | +6,609+13.5% | Added |
| Mandatum Life Insurance Co Ltd | 54,859 | $3.40M | 0.62% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 54,562 | $3.38M | 0.00% | +6,930+14.5% | Added |
| BBVA USA | 53,767 | $3.33M | 0.19% | +53,767 | New |
| Qube Research & Technologies Ltd | 53,395 | $3.31M | 0.04% | +23,985+81.6% | Added |
| CIBC Private Wealth Group, LLC | 53,328 | $3.31M | 0.01% | −1,662−3.0% | Reduced |
| Parsec Financial Management, Inc. | 52,812 | $3.27M | 0.15% | −1,615−3.0% | Reduced |
| Vontobel Holding Ltd. | 52,042 | $3.23M | 0.03% | +124+0.2% | Added |
| Pictet Asset Management Ltd | 51,286 | $3.18M | 0.00% | −636−1.2% | Reduced |
| APG Asset Management N.V. | 59,553 | $3.11M | 0.01% | +16,200+37.4% | Added |
| Renaissance Technologies LLC | 47,026 | $2.91M | 0.00% | −148,700−76.0% | Reduced |
| Pensionfund DSM Netherlands | 46,800 | $2.90M | 0.37% | −3,000−6.0% | Reduced |
| Nisa Investment Advisors, LLC | 46,650 | $2.89M | 0.02% | 00.0% | Unchanged |
| Taylor Hoffman Wealth Management | 46,244 | $2.87M | 1.24% | +8,606+22.9% | Added |
| West Coast Financial LLC | 45,330 | $2.81M | 0.46% | +974+2.2% | Added |
| LPL Financial LLC | 44,372 | $2.75M | 0.00% | −15,300−25.6% | Reduced |
| Oppenheimer Asset Management Inc. | 43,186 | $2.67M | 0.04% | −643−1.5% | Reduced |
| Ameritas Investment Partners, Inc. | 42,863 | $2.65M | 0.10% | −1,996−4.4% | Reduced |
| HRT Financial LP | 42,384 | $2.63M | 0.02% | +32,898+346.8% | Added |
| Franklin Resources Inc | 42,256 | $2.62M | 0.00% | −41,510−49.6% | Reduced |
| Toronto Dominion Bank | 41,816 | $2.59M | 0.00% | +3,758+9.9% | Added |
| Royal London Asset Management Ltd | 41,529 | $2.57M | 0.01% | −3,196−7.1% | Reduced |
| Henshaw Capital LLC | 41,254 | $2.56M | 0.16% | +10,877+35.8% | Added |
| Treasurer of the State of North Carolina | 40,029 | $2.48M | 0.01% | −1,310−3.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 39,488 | $2.45M | 0.03% | −251−0.6% | Reduced |
| Handelsbanken Fonder AB | 38,362 | $2.38M | 0.01% | −311−0.8% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 38,297 | $2.37M | 0.01% | −146−0.4% | Reduced |
| Wealth Alliance Advisory Group, LLC | 37,504 | $2.32M | 1.13% | 00.0% | Unchanged |
| Interval Partners, LP | 37,435 | $2.32M | 0.14% | −97,849−72.3% | Reduced |
| Jane Street Group, LLC | 37,207 | $2.31M | 0.01% | +24,420+191.0% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 36,627 | $2.27M | 0.01% | −34,267−48.3% | Reduced |
| Aviva PLC | 36,360 | $2.25M | 0.01% | −1,241−3.3% | Reduced |
| Korea Investment CORP | 35,900 | $2.23M | 0.01% | +6,900+23.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 35,739 | $2.21M | 0.01% | 00.0% | Unchanged |
| NJ State Employees Deferred Compensation Plan | 35,400 | $2.19M | 0.29% | 00.0% | Unchanged |
| Atria Investments LLC | 35,351 | $2.19M | 0.04% | +1,643+4.9% | Added |
| Arizona State Retirement System | 34,480 | $2.14M | 0.02% | −951−2.7% | Reduced |
| State of Michigan Retirement System | 33,701 | $2.09M | 0.01% | −14,200−29.6% | Reduced |
| State of Alaska, Department of Revenue | 32,689 | $2.02M | 0.02% | −11,393−25.8% | Reduced |
| Pensionfund Sabic | 32,000 | $1.98M | 0.42% | 00.0% | Unchanged |
| Johnson Investment Counsel Inc | 30,730 | $1.90M | 0.03% | −41−0.1% | Reduced |
| Louisiana State Employees Retirement System | 30,700 | $1.90M | 0.05% | −300−1.0% | Reduced |
| IFG Advisory, LLC | 30,610 | $1.90M | 0.21% | +30,610 | New |
| Macquarie Group Ltd | 30,017 | $1.86M | 0.00% | +13,238+78.9% | Added |
| Forsta Ap-Fonden | 29,700 | $1.84M | 0.02% | −8,800−22.9% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 28,158 | $1.75M | 0.00% | −229−0.8% | Reduced |
| Tower Research Capital LLC (TRC) | 27,945 | $1.73M | 0.05% | +12,188+77.3% | Added |
| Bright Rock Capital Management, LLC | 27,600 | $1.71M | 0.41% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 26,527 | $1.64M | 0.00% | +215+0.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 26,138 | $1.62M | 0.01% | −169−0.6% | Reduced |
| Morris Capital Advisors, LLC | 25,801 | $1.60M | 1.21% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 25,685 | $1.59M | 0.01% | +14,898+138.1% | Added |
| King Luther Capital Management Corp | 25,516 | $1.58M | 0.01% | +15,376+151.6% | Added |
| New Mexico Educational Retirement Board | 24,700 | $1.53M | 0.05% | +3,400+16.0% | Added |
| SG Americas Securities, LLC | 24,030 | $1.49M | 0.01% | +7,564+45.9% | Added |
| Gulf International Bank (UK) Ltd | 23,880 | $1.48M | 0.02% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 23,124 | $1.43M | 0.00% | +382+1.7% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 23,000 | $1.43M | 0.01% | +4,000+21.1% | Added |
| British Columbia Investment Management Corp | 22,796 | $1.41M | 0.01% | +2,629+13.0% | Added |
| Oliver Luxxe Assets LLC | 22,570 | $1.40M | 0.38% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 22,513 | $1.40M | 0.00% | +8,045+55.6% | Added |
| Metropolitan Life Insurance Co | 22,211 | $1.38M | 0.02% | −185−0.8% | Reduced |
| Panagora Asset Management Inc | 22,033 | $1.36M | 0.01% | −195−0.9% | Reduced |
| Nomura Asset Management Co Ltd | 21,530 | $1.33M | 0.01% | +730+3.5% | Added |
| Arnhold LLC | 21,045 | $1.30M | 0.15% | 00.0% | Unchanged |
| Davenport & Co LLC | 20,959 | $1.30M | 0.01% | 00.0% | Unchanged |
| Utah Retirement Systems | 20,874 | $1.29M | 0.02% | −800−3.7% | Reduced |
| Globeflex Capital L P | 20,571 | $1.27M | 0.23% | 00.0% | Unchanged |
| Tiedemann Advisors, LLC | 20,022 | $1.24M | 0.05% | −35−0.2% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 19,817 | $1.23M | 0.01% | +1,000+5.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 19,741 | $1.22M | 0.02% | −129−0.6% | Reduced |
| Moors & Cabot, Inc. | 19,546 | $1.21M | 0.08% | +150+0.8% | Added |
| Westwood Holdings Group Inc. | 19,405 | $1.20M | 0.01% | −8,432−30.3% | Reduced |