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, Q1 2025
Institutional positions in SEI Investments Co as of Mar 31, 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
- 546
- +16 vs. Q4 2024
- Shares held
- 93.7M
- +2.84M (+3.1%) vs. Q4 2024
- Total value
- $7.27B
- −$226.7M (−3.0%) vs. Q4 2024
- New holders
- 68
- 192 more added
- Sold out
- 52
- 186 more reduced
10 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Redwood Investment Management, LLC | 16,925 | $1.31M | 0.14% | −267−1.6% | Reduced |
| Xponance, Inc. | 17,073 | $1.33M | 0.01% | −264−1.5% | Reduced |
| Nebula Research & Development LLC | 17,355 | $1.35M | 0.12% | −21,795−55.7% | Reduced |
| Swiss Life Asset Management Ltd | 17,370 | $1.35M | 0.01% | +2,634+17.9% | Added |
| Capital Fund Management S.A. | 17,514 | $1.36M | 0.02% | +17,514 | New |
| Oppenheimer Asset Management Inc. | 17,588 | $1.37M | 0.02% | −256−1.4% | Reduced |
| Allstate Corp | 17,739 | $1.38M | 0.04% | +15,125+578.6% | Added |
| Lazard Asset Management LLC | 18,623 | $1.44M | 0.00% | +3,305+21.6% | Added |
| Schechter Investment Advisors, LLC | 18,852 | $1.46M | 0.12% | −2,482−11.6% | Reduced |
| DnB Asset Management AS | 18,920 | $1.47M | 0.01% | −3,005−13.7% | Reduced |
| Ameritas Investment Partners, Inc. | 18,967 | $1.47M | 0.05% | −656−3.3% | Reduced |
| AlTi Global, Inc. | 18,991 | $1.47M | 0.04% | −8,480−30.9% | Reduced |
| Cerity Partners LLC | 19,283 | $1.50M | 0.00% | −3,011−13.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 19,421 | $1.51M | 0.12% | +7,285+60.0% | Added |
| DGS Capital Management, LLC | 19,553 | $1.52M | 0.40% | +6,340+48.0% | Added |
| Oregon Public Employees Retirement Fund | 19,586 | $1.52M | 0.03% | −400−2.0% | Reduced |
| Moors & Cabot, Inc. | 20,251 | $1.57M | 0.08% | −529−2.5% | Reduced |
| Davenport & Co LLC | 20,762 | $1.61M | 0.01% | −15−0.1% | Reduced |
| New Mexico Educational Retirement Board | 20,800 | $1.61M | 0.06% | 00.0% | Unchanged |
| British Columbia Investment Management Corp | 20,965 | $1.63M | 0.01% | −186−0.9% | Reduced |
| Captrust Financial Advisors | 21,040 | $1.63M | 0.00% | +18,094+614.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 21,301 | $1.65M | 0.00% | +6,261+41.6% | Added |
| Churchill Management Corp | 21,355 | $1.66M | 0.02% | −684−3.1% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 21,433 | $1.66M | 0.03% | −340−1.6% | Reduced |
| Brandes Investment Partners, LP | 21,588 | $1.68M | 0.02% | +3,978+22.6% | Added |
| Sterling Capital Management LLC | 21,590 | $1.68M | 0.03% | −1,617−7.0% | Reduced |
| Oliver Luxxe Assets LLC | 22,606 | $1.75M | 0.33% | +36+0.2% | Added |
| Linden Thomas Advisory Services, LLC | 22,833 | $1.77M | 0.23% | +354+1.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 23,043 | $1.79M | 0.01% | +1,406+6.5% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 23,434 | $1.82M | 0.02% | −12,100−34.1% | Reduced |
| Forsta Ap-Fonden | 23,900 | $1.86M | 0.01% | +23,900 | New |
| Convergence Investment Partners, LLC | 24,395 | $1.89M | 0.52% | −4,455−15.4% | Reduced |
| Macquarie Group Ltd | 24,762 | $1.92M | 0.00% | +1,563+6.7% | Added |
| State of Michigan Retirement System | 25,124 | $1.95M | 0.01% | −100−0.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 25,371 | $1.97M | 0.02% | −1,265−4.7% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 25,385 | $1.97M | 0.01% | 00.0% | Unchanged |
| Credit Agricole S A | 25,564 | $1.98M | 0.01% | −60.0% | Reduced |
| Vident Advisory, LLC | 25,638 | $1.99M | 0.03% | +59+0.2% | Added |
| Illinois Municipal Retirement Fund | 26,089 | $2.03M | 0.03% | 00.0% | Unchanged |
| Smithbridge Asset Management Inc | 26,201 | $2.03M | 0.38% | +26,201 | New |
| Verition Fund Management LLC | 26,239 | $2.04M | 0.01% | +15,142+136.5% | Added |
| Investment Management Corp of Ontario | 26,550 | $2.06M | 0.04% | +26,550 | New |
| The PNC Financial Services Group, Inc. | 26,620 | $2.07M | 0.00% | −888−3.2% | Reduced |
| JustInvest LLC | 26,663 | $2.07M | 0.03% | +584+2.2% | Added |
| TrimTabs Asset Management, LLC | 26,671 | $2.07M | 0.33% | −3,828−12.6% | Reduced |
| Balyasny Asset Management LLC | 26,840 | $2.08M | 0.01% | −39,288−59.4% | Reduced |
| Omers Administration Corp | 26,890 | $2.09M | 0.02% | −5,976−18.2% | Reduced |
| Storebrand Asset Management AS | 26,904 | $2.09M | 0.01% | −34,326−56.1% | Reduced |
| Louisiana State Employees Retirement System | 27,000 | $2.10M | 0.04% | −200−0.7% | Reduced |
| Neuberger Berman Group LLC | 27,360 | $2.12M | 0.00% | +8,770+47.2% | Added |
| Bright Rock Capital Management, LLC | 27,600 | $2.14M | 0.45% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 28,046 | $2.18M | 0.01% | −1,454−4.9% | Reduced |
| Gries Financial LLC | 28,074 | $2.18M | 0.42% | −2,339−7.7% | Reduced |
| CWM Advisors, LLC | 28,100 | $2.18M | 0.26% | −3,568−11.3% | Reduced |
| Worldquant Millennium Advisors LLC | 28,710 | $2.23M | 0.01% | +3,888+15.7% | Added |
| Johnson Investment Counsel Inc | 29,791 | $2.31M | 0.02% | −150−0.5% | Reduced |
| STRS Ohio | 29,834 | $2.32M | 0.01% | +1,999+7.2% | Added |
| Handelsbanken Fonder AB | 29,900 | $2.32M | 0.01% | +7,200+31.7% | Added |
| Maltese Capital Management LLC | 30,000 | $2.33M | 0.38% | +20,000+200.0% | Added |
| Comerica Bank | 30,027 | $2.33M | 0.01% | −1,009−3.3% | Reduced |
| Teachers Retirement System of the State of Kentucky | 31,054 | $2.41M | 0.02% | 00.0% | Unchanged |
| Mediolanum International Funds Ltd | 31,853 | $2.46M | 0.03% | +729+2.3% | Added |
| Arizona State Retirement System | 31,687 | $2.46M | 0.02% | −378−1.2% | Reduced |
| Fieldview Capital Management, LLC | 32,182 | $2.50M | 0.35% | +32,182 | New |
| Resona Asset Management Co.,Ltd. | 32,265 | $2.50M | 0.01% | +1,046+3.4% | Added |
| Toronto Dominion Bank | 32,823 | $2.55M | 0.01% | +1,913+6.2% | Added |
| CBOE Vest Financial, LLC | 33,232 | $2.58M | 0.04% | +33,232 | New |
| Quest Partners LLC | 33,719 | $2.62M | 0.28% | +16,289+93.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 34,109 | $2.65M | 0.01% | −2,128−5.9% | Reduced |
| Yousif Capital Management, LLC | 34,586 | $2.68M | 0.03% | −1,369−3.8% | Reduced |
| Element Capital Management LLC | 34,813 | $2.70M | 0.67% | +34,813 | New |
| Lansforsakringar Fondforvaltning AB (publ) | 35,376 | $2.75M | 0.02% | 00.0% | Unchanged |
| NJ State Employees Deferred Compensation Plan | 35,400 | $2.75M | 0.35% | 00.0% | Unchanged |
| Diversified Trust Co | 36,009 | $2.80M | 0.07% | −45−0.1% | Reduced |
| Ingalls & Snyder LLC | 36,105 | $2.80M | 0.09% | −100−0.3% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 36,245 | $2.81M | 0.03% | +336+0.9% | Added |
| US Bancorp | 36,771 | $2.85M | 0.00% | +262+0.7% | Added |
| Sepio Capital, LP | 37,141 | $2.88M | 0.23% | −776−2.0% | Reduced |
| Wealth Alliance Advisory Group, LLC | 37,504 | $2.91M | 0.60% | 00.0% | Unchanged |
| Kingsview Wealth Management, LLC | 37,946 | $2.95M | 0.06% | +37,946 | New |
| Procyon Private Wealth Partners, LLC | 38,420 | $2.98M | 0.18% | +2,818+7.9% | Added |
| Susquehanna Fundamental Investments, LLC | 38,443 | $2.98M | 0.05% | −46,161−54.6% | Reduced |
| Algert Global LLC | 38,744 | $3.01M | 0.07% | −13,037−25.2% | Reduced |
| Railway Pension Investments Ltd | 39,900 | $3.10M | 0.04% | 00.0% | Unchanged |
| Atria Investments LLC | 40,315 | $3.13M | 0.04% | +4,267+11.8% | Added |
| State of Tennessee, Treasury Department | 40,498 | $3.14M | 0.01% | 00.0% | Unchanged |
| Thrive Wealth Management, LLC | 41,119 | $3.19M | 0.61% | −1,188−2.8% | Reduced |
| Sanctuary Advisors, LLC | 41,497 | $3.22M | 0.02% | −5,873−12.4% | Reduced |
| SummitTX Capital, L.P. | 42,332 | $3.29M | 0.14% | +42,332 | New |
| PGGM Investments | 42,444 | $3.29M | 0.04% | 00.0% | Unchanged |
| Henshaw Capital LLC | 42,594 | $3.31M | 0.15% | −462−1.1% | Reduced |
| Bokf, NA | 42,725 | $3.32M | 0.06% | +32,986+338.7% | Added |
| Canada Pension Plan Investment Board | 43,400 | $3.37M | 0.00% | +43,400 | New |
| Nisa Investment Advisors, LLC | 43,777 | $3.40M | 0.02% | 00.0% | Unchanged |
| TownSquare Capital, LLC | 44,112 | $3.42M | 0.04% | +10,138+29.8% | Added |
| New York State Common Retirement Fund | 45,554 | $3.54M | 0.01% | −175,700−79.4% | Reduced |
| Quantinno Capital Management LP | 45,943 | $3.57M | 0.02% | +17,987+64.3% | Added |
| Amalgamated Bank | 46,375 | $3.60M | 0.03% | −2,692−5.5% | Reduced |
| CIBC Asset Management Inc | 46,886 | $3.64M | 0.01% | −708−1.5% | Reduced |
| Vinva Investment Management Ltd | 48,792 | $3.76M | 0.15% | −59,558−55.0% | Reduced |