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, 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 |
|---|---|---|---|---|---|
| Balyasny Asset Management LLC | 26,840 | $2.08M | 0.01% | −39,288−59.4% | Reduced |
| TrimTabs Asset Management, LLC | 26,671 | $2.07M | 0.33% | −3,828−12.6% | Reduced |
| JustInvest LLC | 26,663 | $2.07M | 0.03% | +584+2.2% | Added |
| The PNC Financial Services Group, Inc. | 26,620 | $2.07M | 0.00% | −888−3.2% | Reduced |
| Investment Management Corp of Ontario | 26,550 | $2.06M | 0.04% | +26,550 | New |
| Verition Fund Management LLC | 26,239 | $2.04M | 0.01% | +15,142+136.5% | Added |
| Smithbridge Asset Management Inc | 26,201 | $2.03M | 0.38% | +26,201 | New |
| Illinois Municipal Retirement Fund | 26,089 | $2.03M | 0.03% | 00.0% | Unchanged |
| Vident Advisory, LLC | 25,638 | $1.99M | 0.03% | +59+0.2% | Added |
| Credit Agricole S A | 25,564 | $1.98M | 0.01% | −60.0% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 25,385 | $1.97M | 0.01% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 25,371 | $1.97M | 0.02% | −1,265−4.7% | Reduced |
| State of Michigan Retirement System | 25,124 | $1.95M | 0.01% | −100−0.4% | Reduced |
| Macquarie Group Ltd | 24,762 | $1.92M | 0.00% | +1,563+6.7% | Added |
| Convergence Investment Partners, LLC | 24,395 | $1.89M | 0.52% | −4,455−15.4% | Reduced |
| Forsta Ap-Fonden | 23,900 | $1.86M | 0.01% | +23,900 | New |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 23,434 | $1.82M | 0.02% | −12,100−34.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 23,043 | $1.79M | 0.01% | +1,406+6.5% | Added |
| Linden Thomas Advisory Services, LLC | 22,833 | $1.77M | 0.23% | +354+1.6% | Added |
| Oliver Luxxe Assets LLC | 22,606 | $1.75M | 0.33% | +36+0.2% | Added |
| Sterling Capital Management LLC | 21,590 | $1.68M | 0.03% | −1,617−7.0% | Reduced |
| Brandes Investment Partners, LP | 21,588 | $1.68M | 0.02% | +3,978+22.6% | Added |
| Northwestern Mutual Investment Management Company, LLC | 21,433 | $1.66M | 0.03% | −340−1.6% | Reduced |
| Churchill Management Corp | 21,355 | $1.66M | 0.02% | −684−3.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 21,301 | $1.65M | 0.00% | +6,261+41.6% | Added |
| Captrust Financial Advisors | 21,040 | $1.63M | 0.00% | +18,094+614.2% | Added |
| British Columbia Investment Management Corp | 20,965 | $1.63M | 0.01% | −186−0.9% | Reduced |
| New Mexico Educational Retirement Board | 20,800 | $1.61M | 0.06% | 00.0% | Unchanged |
| Davenport & Co LLC | 20,762 | $1.61M | 0.01% | −15−0.1% | Reduced |
| Moors & Cabot, Inc. | 20,251 | $1.57M | 0.08% | −529−2.5% | Reduced |
| Oregon Public Employees Retirement Fund | 19,586 | $1.52M | 0.03% | −400−2.0% | Reduced |
| DGS Capital Management, LLC | 19,553 | $1.52M | 0.40% | +6,340+48.0% | Added |
| Campbell & CO Investment Adviser LLC | 19,421 | $1.51M | 0.12% | +7,285+60.0% | Added |
| Cerity Partners LLC | 19,283 | $1.50M | 0.00% | −3,011−13.5% | Reduced |
| AlTi Global, Inc. | 18,991 | $1.47M | 0.04% | −8,480−30.9% | Reduced |
| Ameritas Investment Partners, Inc. | 18,967 | $1.47M | 0.05% | −656−3.3% | Reduced |
| DnB Asset Management AS | 18,920 | $1.47M | 0.01% | −3,005−13.7% | Reduced |
| Schechter Investment Advisors, LLC | 18,852 | $1.46M | 0.12% | −2,482−11.6% | Reduced |
| Lazard Asset Management LLC | 18,623 | $1.44M | 0.00% | +3,305+21.6% | Added |
| Allstate Corp | 17,739 | $1.38M | 0.04% | +15,125+578.6% | Added |
| Oppenheimer Asset Management Inc. | 17,588 | $1.37M | 0.02% | −256−1.4% | Reduced |
| Capital Fund Management S.A. | 17,514 | $1.36M | 0.02% | +17,514 | New |
| Swiss Life Asset Management Ltd | 17,370 | $1.35M | 0.01% | +2,634+17.9% | Added |
| Nebula Research & Development LLC | 17,355 | $1.35M | 0.12% | −21,795−55.7% | Reduced |
| Xponance, Inc. | 17,073 | $1.33M | 0.01% | −264−1.5% | Reduced |
| Redwood Investment Management, LLC | 16,925 | $1.31M | 0.14% | −267−1.6% | Reduced |
| Voya Investment Management LLC | 16,716 | $1.30M | 0.00% | +857+5.4% | Added |
| Utah Retirement Systems | 16,629 | $1.29M | 0.01% | −145−0.9% | Reduced |
| Stifel Financial Corp | 16,542 | $1.28M | 0.00% | −765−4.4% | Reduced |
| IFM Investors Pty Ltd | 16,391 | $1.27M | 0.01% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 15,718 | $1.22M | 0.03% | −1,543−8.9% | Reduced |
| Ontario Teachers Pension Plan Board | 15,697 | $1.22M | 0.02% | +6,742+75.3% | Added |
| Pensionfund Sabic | 15,600 | $1.21M | 0.36% | −3,400−17.9% | Reduced |
| Lafayette Investments, Inc. | 15,419 | $1.20M | 0.25% | −480−3.0% | Reduced |
| Headlands Technologies LLC | 15,281 | $1.19M | 0.14% | +12,293+411.4% | Added |
| Clark Capital Management Group, Inc. | 15,195 | $1.18M | 0.01% | +183+1.2% | Added |
| Engineers Gate Manager LP | 15,137 | $1.18M | 0.02% | −4,062−21.2% | Reduced |
| Brown Advisory Inc | 14,939 | $1.16M | 0.00% | −553,088−97.4% | Reduced |
| Intech Investment Management LLC | 14,888 | $1.16M | 0.01% | −2,460−14.2% | Reduced |
| Donald L. Hagan, LLC | 14,735 | $1.14M | 0.60% | +261+1.8% | Added |
| Ashton Thomas Private Wealth, LLC | 14,711 | $1.14M | 0.04% | −1,164−7.3% | Reduced |
| Gotham Asset Management, LLC | 14,555 | $1.13M | 0.01% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 14,502 | $1.13M | 0.04% | +14,502 | New |
| Nissay Asset Management Corp | 13,897 | $1.08M | 0.01% | −18−0.1% | Reduced |
| Cresset Asset Management, LLC | 13,760 | $1.07M | 0.01% | −1,529−10.0% | Reduced |
| 1832 Asset Management L.P. | 13,625 | $1.06M | 0.00% | +553+4.2% | Added |
| FORA Capital, LLC | 12,758 | $990.4K | 0.10% | +12,758 | New |
| Mackenzie Financial Corp | 12,623 | $979.9K | 0.00% | +2,457+24.2% | Added |
| Susquehanna International Group, LLP | 12,616 | $979.4K | 0.00% | −10,682−45.8% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 12,553 | $974.5K | 0.01% | +4,701+59.9% | Added |
| TD Waterhouse Canada Inc. | 12,460 | $962.3K | 0.01% | −559−4.3% | Reduced |
| CI Private Wealth, LLC | 12,335 | $957.6K | 0.00% | −268−2.1% | Reduced |
| OP Asset Management Ltd | 11,958 | $928.3K | 0.02% | +11,958 | New |
| Elo Mutual Pension Insurance Co | 11,928 | $926.0K | 0.02% | −1,312−9.9% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 11,603 | $900.7K | 0.00% | +484+4.4% | Added |
| HighTower Advisors, LLC | 11,497 | $892.5K | 0.00% | −16−0.1% | Reduced |
| Brinker Capital Investments, LLC | 11,353 | $881.3K | 0.01% | −2,656−19.0% | Reduced |
| Orion Portfolio Solutions, LLC | 11,353 | $881.3K | 0.01% | −2,656−19.0% | Reduced |
| New York Life Investment Management LLC | 11,129 | $863.9K | 0.01% | +664+6.3% | Added |
| Hillsdale Investment Management Inc. | 11,000 | $853.9K | 0.04% | +200+1.9% | Added |
| Federated Hermes, Inc. | 10,854 | $842.6K | 0.00% | +1,657+18.0% | Added |
| Buckingham Strategic Partners | 10,693 | $830.1K | 0.01% | −1,667−13.5% | Reduced |
| BancorpSouth Bank | 10,551 | $819.1K | 0.06% | +121+1.2% | Added |
| Commerce Bank | 10,252 | $795.9K | 0.01% | +96+0.9% | Added |
| Bayforest Capital Ltd | 10,021 | $777.9K | 0.34% | +6,265+166.8% | Added |
| RBF Capital, LLC | 10,000 | $776.3K | 0.05% | 00.0% | Unchanged |
| First Citizens Bank & Trust Co | 9,951 | $772.5K | 0.02% | +96+1.0% | Added |
| Petrus Trust Company, LTA | 9,787 | $759.8K | 0.07% | +282+3.0% | Added |
| CoreCap Advisors, LLC | 9,706 | $753.5K | 0.03% | +589+6.5% | Added |
| Logan Capital Management Inc | 9,700 | $753.0K | 0.03% | 00.0% | Unchanged |
| Patton Albertson Miller Group, LLC | 9,650 | $749.1K | 0.11% | 00.0% | Unchanged |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 9,600 | $745.2K | 0.03% | +1,000+11.6% | Added |
| Patten & Patten Inc | 9,500 | $737.5K | 0.05% | 00.0% | Unchanged |
| State of Wyoming | 9,461 | $734.5K | 0.10% | +5,934+168.2% | Added |
| Crossmark Global Holdings, Inc. | 9,339 | $725.0K | 0.01% | +970+11.6% | Added |
| Nordea Investment Management AB | 9,422 | $723.2K | 0.00% | +33+0.4% | Added |
| NBC Securities, Inc. | 8,990 | $697.0K | 0.06% | +8,982+112,275.0% | Added |
| Daiwa Securities Group Inc. | 8,700 | $675.0K | 0.00% | +300+3.6% | Added |
| Creative Planning | 8,609 | $668.3K | 0.00% | −1,422−14.2% | Reduced |
| Ghe, LLC | 8,532 | $662.0K | 0.30% | −594−6.5% | Reduced |