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 2021
Institutional positions in SEI Investments Co as of Dec 31, 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
- 472
- +30 vs. Q3 2021
- Shares held
- 97.5M
- +862.3K (+0.9%) vs. Q3 2021
- Total value
- $5.94B
- +$212.5M (+3.7%) vs. Q3 2021
- New holders
- 68
- 142 more added
- Sold out
- 38
- 160 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Interval Partners, LP | 31,649 | $1.93M | 0.13% | −15,628−33.1% | Reduced |
| Janus Henderson Group PLC | 31,700 | $1.93M | 0.00% | −20,487−39.3% | Reduced |
| Pensionfund Sabic | 32,000 | $1.95M | 0.37% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 32,068 | $1.95M | 0.00% | +24,285+312.0% | Added |
| Arizona State Retirement System | 32,649 | $1.99M | 0.02% | −1,417−4.2% | Reduced |
| Natixis | 33,182 | $2.02M | 0.01% | +33,182 | New |
| IFG Advisory, LLC | 33,985 | $2.07M | 0.20% | −250−0.7% | Reduced |
| State of Michigan Retirement System | 34,337 | $2.09M | 0.01% | +3,636+11.8% | Added |
| Courant Investment Management LLC | 34,707 | $2.12M | 1.71% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 35,139 | $2.14M | 0.02% | −283−0.8% | Reduced |
| NJ State Employees Deferred Compensation Plan | 35,400 | $2.16M | 0.27% | 00.0% | Unchanged |
| Atria Investments LLC | 35,583 | $2.17M | 0.04% | +1,498+4.4% | Added |
| AlphaCrest Capital Management LLC | 35,766 | $2.18M | 0.08% | +13,573+61.2% | Added |
| Monument Capital Management | 37,201 | $2.27M | 0.70% | +37,201 | New |
| Vontobel Holding Ltd. | 37,120 | $2.28M | 0.02% | −1,335−3.5% | Reduced |
| Wealth Alliance Advisory Group, LLC | 37,504 | $2.29M | 0.99% | 00.0% | Unchanged |
| Chevy Chase Trust Holdings, Inc. | 37,766 | $2.30M | 0.01% | +37,766 | New |
| Tudor Investment Corp Et Al | 37,834 | $2.31M | 0.04% | −27,387−42.0% | Reduced |
| Handelsbanken Fonder AB | 38,256 | $2.33M | 0.01% | −2,006−5.0% | Reduced |
| Treasurer of the State of North Carolina | 38,738 | $2.36M | 0.01% | −230−0.6% | Reduced |
| Glenmede Trust Co NA | 39,029 | $2.38M | 0.01% | −15,831−28.9% | Reduced |
| Ameritas Investment Partners, Inc. | 39,936 | $2.43M | 0.08% | +555+1.4% | Added |
| Johnson Investment Counsel Inc | 40,100 | $2.46M | 0.03% | +9,370+30.5% | Added |
| SG Americas Securities, LLC | 40,885 | $2.49M | 0.02% | +17,105+71.9% | Added |
| Henshaw Capital LLC | 41,254 | $2.51M | 0.14% | 00.0% | Unchanged |
| Banque Pictet & Cie SA | 41,571 | $2.53M | 0.02% | +41,571 | New |
| Oppenheimer Asset Management Inc. | 42,093 | $2.56M | 0.03% | −168−0.4% | Reduced |
| NN Investment Partners Holdings N.V. | 43,100 | $2.63M | 0.01% | +43,100 | New |
| Pictet Asset Management SA | 43,502 | $2.65M | 0.00% | −8,050−15.6% | Reduced |
| Nisa Investment Advisors, LLC | 45,950 | $2.69M | 0.02% | −700−1.5% | Reduced |
| West Coast Financial LLC | 46,307 | $2.82M | 0.40% | +140+0.3% | Added |
| Price T Rowe Associates Inc | 46,938 | $2.86M | 0.00% | −5,969−11.3% | Reduced |
| Comerica Bank | 49,884 | $2.89M | 0.02% | +176+0.4% | Added |
| HBK Sorce Advisory LLC | 47,903 | $2.92M | 0.15% | +10.0% | Added |
| Oregon Public Employees Retirement Fund | 49,720 | $3.03M | 0.03% | −6,851−12.1% | Reduced |
| State of Alaska, Department of Revenue | 50,681 | $3.09M | 0.03% | +17,304+51.8% | Added |
| CIBC Private Wealth Group, LLC | 50,943 | $3.10M | 0.01% | −427−0.8% | Reduced |
| APG Asset Management N.V. | 58,253 | $3.12M | 0.01% | −5,700−8.9% | Reduced |
| MetLife Investment Management | 51,361 | $3.13M | 0.03% | −147−0.3% | Reduced |
| Parsec Financial Management, Inc. | 51,763 | $3.15M | 0.13% | −440−0.8% | Reduced |
| LPL Financial LLC | 52,070 | $3.17M | 0.00% | +1,698+3.4% | Added |
| O'Shares Investment Advisers, LLC | 52,669 | $3.21M | 0.23% | +1,560+3.1% | Added |
| Asset Management One Co.,Ltd. | 52,594 | $3.24M | 0.01% | −5,810−9.9% | Reduced |
| Taylor Hoffman Wealth Management | 53,776 | $3.28M | 1.25% | +4,059+8.2% | Added |
| Rafferty Asset Management, LLC | 56,371 | $3.44M | 0.02% | +4,412+8.5% | Added |
| Putnam Investments LLC | 56,582 | $3.45M | 0.00% | −3,813−6.3% | Reduced |
| Yousif Capital Management, LLC | 57,356 | $3.50M | 0.04% | +57,356 | New |
| Squarepoint Ops LLC | 58,564 | $3.57M | 0.02% | +19,078+48.3% | Added |
| Public Employees Retirement System of Ohio | 59,018 | $3.60M | 0.01% | −2,668−4.3% | Reduced |
| Citadel Advisors LLC | 60,039 | $3.66M | 0.00% | −2,362−3.8% | Reduced |
| Ingalls & Snyder LLC | 60,295 | $3.67M | 0.17% | −125−0.2% | Reduced |
| Verition Fund Management LLC | 60,572 | $3.69M | 0.05% | +60,572 | New |
| Union Heritage Capital, LLC | 61,550 | $3.75M | 1.76% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 62,820 | $3.83M | 0.01% | +2,314+3.8% | Added |
| Cubist Systematic Strategies, LLC | 62,951 | $3.84M | 0.04% | −28,789−31.4% | Reduced |
| RK Asset Management, LLC | 63,754 | $3.88M | 3.43% | −2,271−3.4% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 66,736 | $4.07M | 0.04% | −14,300−17.6% | Reduced |
| Acadian Asset Management LLC | 68,157 | $4.15M | 0.02% | +28,396+71.4% | Added |
| Holocene Advisors, LP | 70,920 | $4.32M | 0.02% | −5,046−6.6% | Reduced |
| Aviva PLC | 72,767 | $4.43M | 0.02% | +10,658+17.2% | Added |
| Sepio Capital, LP | 73,504 | $4.48M | 0.34% | −2,396−3.2% | Reduced |
| Franklin Resources Inc | 75,436 | $4.60M | 0.00% | +38,744+105.6% | Added |
| Texas Permanent School Fund | 76,746 | $4.68M | 0.06% | −2,567−3.2% | Reduced |
| State of Tennessee, Treasury Department | 78,820 | $4.80M | 0.02% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 79,139 | $4.82M | 0.01% | −38,297−32.6% | Reduced |
| Amalgamated Bank | 79,411 | $4.84M | 0.04% | +2,665+3.5% | Added |
| South Dakota Investment Council | 81,981 | $5.00M | 0.08% | 00.0% | Unchanged |
| Mitsubishi UFJ Trust & Banking Corp | 82,036 | $5.00M | 0.01% | −2,931−3.4% | Reduced |
| The PNC Financial Services Group, Inc. | 82,499 | $5.03M | 0.00% | +55,258+202.8% | Added |
| Banco Santander, S.A. | 83,090 | $5.06M | 0.03% | +6,000+7.8% | Added |
| Bank of Montreal | 85,137 | $5.23M | 0.00% | −8,152−8.7% | Reduced |
| Court Place Advisors, LLC | 87,848 | $5.35M | 1.47% | −6,135−6.5% | Reduced |
| Ensign Peak Advisors, Inc | 89,159 | $5.43M | 0.01% | −13,385−13.1% | Reduced |
| Thrive Wealth Management, LLC | 90,009 | $5.49M | 1.87% | +90,009 | New |
| Mutual of America Capital Management LLC | 94,800 | $5.78M | 0.06% | +124+0.1% | Added |
| Toronto Dominion Bank | 98,507 | $6.00M | 0.01% | +56,932+136.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 102,322 | $6.24M | 0.01% | −5,321−4.9% | Reduced |
| BNP Paribas Arbitrage, SA | 102,648 | $6.26M | 0.01% | +41,791+68.7% | Added |
| Allspring Global Investments Holdings, LLC | 105,314 | $6.42M | 0.01% | +105,314 | New |
| Southernsun Asset Management, LLC | 109,018 | $6.64M | 0.66% | −13,834−11.3% | Reduced |
| Renaissance Technologies LLC | 110,226 | $6.72M | 0.01% | −66,300−37.6% | Reduced |
| Brandywine Global Investment Management, LLC | 112,262 | $6.84M | 0.05% | −2,199−1.9% | Reduced |
| Teacher Retirement System of Texas | 112,997 | $6.89M | 0.03% | +1,126+1.0% | Added |
| State of Wisconsin Investment Board | 113,042 | $6.89M | 0.01% | +10,576+10.3% | Added |
| Robeco Institutional Asset Management B.V. | 113,206 | $6.90M | 0.01% | −42,386−27.2% | Reduced |
| RSM US Wealth Management LLC | 115,753 | $7.05M | 0.34% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 120,520 | $7.34M | 0.00% | −3,800−3.1% | Reduced |
| Russell Investments Group, Ltd. | 122,683 | $7.48M | 0.01% | +15,231+14.2% | Added |
| Andra AP-fonden | 126,500 | $7.71M | 0.16% | −2,300−1.8% | Reduced |
| Voloridge Investment Management, LLC | 127,552 | $7.77M | 0.04% | +67,664+113.0% | Added |
| Janney Montgomery Scott LLC | 131,450 | $8.01M | 0.03% | +7,936+6.4% | Added |
| Prudential Financial Inc | 126,713 | $8.03M | 0.01% | −53,387−29.6% | Reduced |
| TD Asset Management Inc | 132,717 | $8.09M | 0.01% | −2,887−2.1% | Reduced |
| Amundi | 130,426 | $8.23M | 0.01% | +13,246+11.3% | Added |
| Deutsche Bank AG | 141,044 | $8.60M | 0.00% | −9,783−6.5% | Reduced |
| New York State Teachers Retirement System | 142,907 | $8.71M | 0.02% | −776−0.5% | Reduced |
| Barclays PLC | 146,144 | $8.91M | 0.01% | −59,635−29.0% | Reduced |
| State Board of Administration of Florida Retirement System | 157,240 | $9.58M | 0.02% | −551−0.3% | Reduced |
| Worldquant Millennium Advisors LLC | 164,648 | $10.0M | 0.20% | +74,886+83.4% | Added |
| Citigroup Inc | 171,778 | $10.5M | 0.01% | +6,672+4.0% | Added |