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 2026
Institutional positions in SEI Investments Co as of Jun 30, 2026. 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
- 575
- +16 vs. Q1 2026
- Shares held
- 90.5M
- +664.6K (+0.7%) vs. Q1 2026
- Total value
- $7.94B
- +$888.3M (+12.6%) vs. Q1 2026
- New holders
- 77
- 173 more added
- Sold out
- 61
- 226 more reduced
10 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Investment Management Corp | 7,812 | $685.2K | 0.57% | +23+0.3% | Added |
| Frec Markets, Inc. | 7,997 | $701.4K | 0.06% | +3,250+68.5% | Added |
| Precision Wealth Strategies, LLC | 8,235 | $722.3K | 0.22% | −635−7.2% | Reduced |
| Tudor Investment Corp Et Al | 8,288 | $726.9K | 0.00% | +8,288 | New |
| Bokf, NA | 8,498 | $745.4K | 0.01% | −31,889−79.0% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 8,615 | $755.5K | 0.00% | −6,628−43.5% | Reduced |
| State of Alaska, Department of Revenue | 8,957 | $785.0K | 0.01% | −351−3.8% | Reduced |
| Janney Montgomery Scott LLC | 9,178 | $805.0K | 0.00% | −123,730−93.1% | Reduced |
| Portfolio Design Labs, LLC | 9,249 | $811.2K | 0.13% | −2,575−21.8% | Reduced |
| NBC Securities, Inc. | 9,275 | $813.5K | 0.06% | +126+1.4% | Added |
| Patten & Patten Inc | 9,400 | $824.5K | 0.04% | 00.0% | Unchanged |
| Intech Investment Management LLC | 9,578 | $840.1K | 0.01% | −17,115−64.1% | Reduced |
| Patton Albertson Miller Group, LLC | 9,650 | $846.4K | 0.08% | 00.0% | Unchanged |
| Logan Capital Management Inc | 9,700 | $850.8K | 0.03% | +9,700 | New |
| Harrell Investment Partners, LLC | 9,707 | $851.4K | 0.18% | +247+2.6% | Added |
| Brinker Capital Investments, LLC | 9,758 | $855.9K | 0.01% | +45+0.5% | Added |
| Entropy Technologies, LP | 9,844 | $863.4K | 0.03% | +9,844 | New |
| Impact Partnership Wealth, LLC | 9,851 | $864.0K | 0.08% | +2,840+40.5% | Added |
| Penserra Capital Management LLC | 9,982 | $875.0K | 0.01% | −341−3.3% | Reduced |
| Lido Advisors, LLC | 9,995 | $876.8K | 0.00% | −2,441−19.6% | Reduced |
| RBF Capital, LLC | 10,000 | $877.1K | 0.04% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 10,160 | $891.1K | 0.00% | −48−0.5% | Reduced |
| Pacer Advisors, Inc. | 10,371 | $910.0K | 0.00% | −583−5.3% | Reduced |
| Numerai GP LLC | 10,563 | $926.5K | 0.08% | +10,563 | New |
| Commerce Bank | 10,661 | $935.1K | 0.00% | −479−4.3% | Reduced |
| Principal Securities, Inc. | 10,811 | $948.2K | 0.01% | −3,669−25.3% | Reduced |
| Huntington National Bank | 10,885 | $954.7K | 0.00% | −30.0% | Reduced |
| Zacks Investment Management | 10,908 | $956.8K | 0.01% | −31,551−74.3% | Reduced |
| ExodusPoint Capital Management, LP | 11,189 | $981.4K | 0.01% | −39,023−77.7% | Reduced |
| Portside Wealth Group, LLC | 11,403 | $1.00M | 0.12% | +775+7.3% | Added |
| Dynamic Technology Lab Private Ltd | 11,609 | $1.02M | 0.23% | −9,909−46.0% | Reduced |
| Xponance, Inc. | 11,681 | $1.02M | 0.01% | −184−1.6% | Reduced |
| Glenmede Trust Co NA | 11,712 | $1.03M | 0.00% | −584−4.7% | Reduced |
| Jones Financial Companies LLLP | 11,865 | $1.04M | 0.00% | +4,920+70.8% | Added |
| New York Life Investment Management LLC | 11,814 | $1.04M | 0.01% | +463+4.1% | Added |
| Quadrature Capital Ltd | 11,823 | $1.04M | 0.01% | +11,823 | New |
| Archford Capital Strategies, LLC | 12,175 | $1.07M | 0.11% | +12,175 | New |
| Voya Investment Management LLC | 12,177 | $1.07M | 0.00% | +862+7.6% | Added |
| Quantbot Technologies LP | 12,202 | $1.07M | 0.04% | −4,562−27.2% | Reduced |
| HighTower Advisors, LLC | 12,435 | $1.09M | 0.00% | −599−4.6% | Reduced |
| Dumont & Blake Investment Advisors LLC | 12,691 | $1.11M | 0.25% | −971−7.1% | Reduced |
| Sequoia Financial Advisors, LLC | 12,812 | $1.12M | 0.01% | −3,004−19.0% | Reduced |
| Evergreen Capital Management LLC | 12,954 | $1.14M | 0.02% | +3,150+32.1% | Added |
| Redwood Investment Management, LLC | 13,366 | $1.17M | 0.12% | +13,366 | New |
| Federation des caisses Desjardins du Quebec | 13,588 | $1.19M | 0.00% | +2,536+22.9% | Added |
| Park Avenue Securities LLC | 13,943 | $1.22M | 0.01% | −3,135−18.4% | Reduced |
| Lafayette Investments, Inc. | 14,256 | $1.25M | 0.23% | −965−6.3% | Reduced |
| Gotham Asset Management, LLC | 14,351 | $1.26M | 0.00% | −204−1.4% | Reduced |
| Prudential Financial Inc | 14,719 | $1.29M | 0.00% | +2,835+23.9% | Added |
| Pictet Asset Management Holding SA | 15,018 | $1.32M | 0.00% | −1,967−11.6% | Reduced |
| Hillsdale Investment Management Inc. | 15,270 | $1.34M | 0.03% | +1,840+13.7% | Added |
| Toronto Dominion Bank | 15,592 | $1.37M | 0.00% | +1,155+8.0% | Added |
| Parallel Advisors, LLC | 15,608 | $1.37M | 0.02% | −1,551−9.0% | Reduced |
| Confluence Wealth Services, Inc. | 16,138 | $1.42M | 0.04% | +1,464+10.0% | Added |
| XTX Topco Ltd | 16,208 | $1.42M | 0.02% | −11,050−40.5% | Reduced |
| Sterling Capital Management LLC | 16,580 | $1.45M | 0.02% | −1,206−6.8% | Reduced |
| Ameritas Investment Partners, Inc. | 16,822 | $1.48M | 0.04% | −232−1.4% | Reduced |
| OmniStar Financial Group, Inc. | 17,269 | $1.51M | 0.70% | +1,410+8.9% | Added |
| O'Shaughnessy Asset Management, LLC | 17,910 | $1.57M | 0.01% | −295−1.6% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 17,942 | $1.57M | 0.04% | −312−1.7% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 17,980 | $1.58M | 0.02% | +1,414+8.5% | Added |
| Two Sigma Securities, LLC | 18,722 | $1.64M | 0.14% | +18,722 | New |
| Readystate Asset Management LP | 18,797 | $1.65M | 0.07% | +18,797 | New |
| Linden Thomas Advisory Services, LLC | 18,884 | $1.66M | 0.13% | −3,436−15.4% | Reduced |
| Oregon Public Employees Retirement Fund | 18,886 | $1.66M | 0.02% | −200−1.0% | Reduced |
| Oppenheimer Asset Management Inc. | 19,855 | $1.74M | 0.02% | +129+0.7% | Added |
| Envestnet Portfolio Solutions, Inc. | 20,242 | $1.78M | 0.01% | +626+3.2% | Added |
| Moors & Cabot, Inc. | 20,298 | $1.78M | 0.07% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 20,519 | $1.80M | 0.01% | −17,017−45.3% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 20,562 | $1.80M | 0.02% | −250−1.2% | Reduced |
| New Mexico Educational Retirement Board | 20,800 | $1.82M | 0.05% | 00.0% | Unchanged |
| State of Michigan Retirement System | 21,388 | $1.88M | 0.01% | −1,000−4.5% | Reduced |
| Davenport & Co LLC | 21,426 | $1.88M | 0.01% | +629+3.0% | Added |
| Summit Trail Advisors, LLC | 21,432 | $1.88M | 0.02% | −2,866−11.8% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 21,883 | $1.92M | 0.01% | −1,393−6.0% | Reduced |
| Deutsche Bank AG | 22,316 | $1.96M | 0.00% | +1,097+5.2% | Added |
| Quadrant Capital Group LLC | 22,830 | $2.00M | 0.05% | −392−1.7% | Reduced |
| First Citizens Bank & Trust Co | 23,011 | $2.02M | 0.03% | −113−0.5% | Reduced |
| MML Investors Services, LLC | 23,138 | $2.03M | 0.00% | −4,050−14.9% | Reduced |
| Campbell & CO Investment Adviser LLC | 24,694 | $2.17M | 0.11% | +19,246+353.3% | Added |
| Fifth Third Bancorp | 24,840 | $2.18M | 0.00% | −1,850−6.9% | Reduced |
| Yousif Capital Management, LLC | 26,241 | $2.30M | 0.03% | −1,961−7.0% | Reduced |
| Captrust Financial Advisors | 26,392 | $2.31M | 0.00% | +2,642+11.1% | Added |
| Vanguard Investments Australia, Ltd. | 26,678 | $2.34M | 0.01% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 26,700 | $2.34M | 0.03% | −200−0.7% | Reduced |
| KBC Group NV | 27,506 | $2.41M | 0.01% | −12,209−30.7% | Reduced |
| Arizona State Retirement System | 27,829 | $2.44M | 0.01% | −757−2.6% | Reduced |
| The PNC Financial Services Group, Inc. | 28,117 | $2.47M | 0.00% | −549−1.9% | Reduced |
| JustInvest LLC | 28,160 | $2.47M | 0.02% | −4,351−13.4% | Reduced |
| Teachers Retirement System of the State of Kentucky | 29,054 | $2.55M | 0.02% | −2,000−6.4% | Reduced |
| SRS Capital Advisors, Inc. | 30,065 | $2.64M | 0.02% | +10,746+55.6% | Added |
| Cetera Investment Advisers | 30,110 | $2.64M | 0.00% | −7,930−20.8% | Reduced |
| Sepio Capital, LP | 30,232 | $2.65M | 0.13% | +633+2.1% | Added |
| SG Americas Securities, LLC | 30,655 | $2.69M | 0.00% | +11,127+57.0% | Added |
| State of New Jersey Common Pension Fund D | 30,872 | $2.71M | 0.01% | 00.0% | Unchanged |
| Johnson Investment Counsel Inc | 32,092 | $2.81M | 0.02% | −4,980−13.4% | Reduced |
| Voleon Capital Management LP | 32,402 | $2.84M | 0.05% | +32,402 | New |
| Allstate Corp | 32,582 | $2.86M | 0.03% | −3,730−10.3% | Reduced |
| Callan Family Office, LLC | 32,957 | $2.89M | 0.06% | +4,666+16.5% | Added |
| Handelsbanken Fonder AB | 33,900 | $2.97M | 0.01% | 00.0% | Unchanged |