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 |
|---|---|---|---|---|---|
| Universal- Beteiligungs- und Servicegesellschaft mbH | 85,026 | $7.46M | 0.01% | +23,724+38.7% | Added |
| Pathstone Holdings, LLC | 82,758 | $7.26M | 0.02% | +51,820+167.5% | Added |
| State of Wisconsin Investment Board | 82,635 | $7.25M | 0.01% | −4,210−4.8% | Reduced |
| Teacher Retirement System of Texas | 82,095 | $7.20M | 0.02% | −21,146−20.5% | Reduced |
| Hahn Capital Management LLC | 81,535 | $7.15M | 4.34% | −2,839−3.4% | Reduced |
| Taylor Hoffman Capital Management LLC | 74,794 | $6.56M | 1.59% | +2,389+3.3% | Added |
| Thrive Wealth Management, LLC | 73,935 | $6.48M | 0.83% | −2,844−3.7% | Reduced |
| Ossiam | 73,055 | $6.41M | 0.08% | +73,055 | New |
| Chevy Chase Trust Holdings, Inc. | 71,582 | $6.28M | 0.02% | −669−0.9% | Reduced |
| HSBC Holdings PLC | 70,381 | $6.15M | 0.00% | −13,083−15.7% | Reduced |
| Manufacturers Life Insurance Company, The | 70,000 | $6.14M | 0.00% | −686−1.0% | Reduced |
| Great West Life Assurance Co | 69,976 | $6.13M | 0.01% | −1,160−1.6% | Reduced |
| Union Heritage Capital, LLC | 68,700 | $6.03M | 2.04% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 66,482 | $5.83M | 0.08% | +66,482 | New |
| Mirae Asset Global Investments Co., Ltd. | 65,465 | $5.74M | 0.01% | +2,266+3.6% | Added |
| CBOE Vest Financial, LLC | 64,900 | $5.69M | 0.06% | −17,671−21.4% | Reduced |
| TD Waterhouse Canada Inc. | 62,601 | $5.64M | 0.01% | −1,093−1.7% | Reduced |
| Modera Wealth Management, LLC | 64,015 | $5.61M | 0.06% | −2,340−3.5% | Reduced |
| Southernsun Asset Management, LLC | 63,671 | $5.58M | 0.75% | −3,732−5.5% | Reduced |
| BNP Paribas Arbitrage, SA | 63,560 | $5.57M | 0.00% | +23,343+58.0% | Added |
| HBK Sorce Advisory LLC | 51,793 | $5.43M | 0.11% | +50.0% | Added |
| Capital Fund Management S.A. | 61,769 | $5.42M | 0.04% | +4,595+8.0% | Added |
| Lazard Asset Management LLC | 60,499 | $5.31M | 0.01% | +22,462+59.1% | Added |
| Banco Santander, S.A. | 59,549 | $5.22M | 0.03% | +12,000+25.2% | Added |
| IFG Advisory, LLC | 59,268 | $5.20M | 0.18% | +59,268 | New |
| SummitTX Capital, L.P. | 55,704 | $4.89M | 0.13% | +47,542+582.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 53,464 | $4.69M | 0.00% | +51,991+3,529.6% | Added |
| MAI Capital Management | 52,803 | $4.63M | 0.02% | −1,184−2.2% | Reduced |
| Vestcor Inc | 52,801 | $4.63M | 0.11% | −58,817−52.7% | Reduced |
| Holocene Advisors, LP | 52,277 | $4.59M | 0.01% | +10,221+24.3% | Added |
| Los Angeles Capital Management LLC | 51,969 | $4.56M | 0.02% | −6,388−10.9% | Reduced |
| HRT Financial LP | 50,793 | $4.46M | 0.01% | +50,793 | New |
| Martingale Asset Management L P | 50,324 | $4.41M | 0.10% | −35,206−41.2% | Reduced |
| Robeco Institutional Asset Management B.V. | 50,175 | $4.40M | 0.01% | −54,599−52.1% | Reduced |
| TD Asset Management Inc | 48,200 | $4.23M | 0.00% | −59,356−55.2% | Reduced |
| Sanctuary Advisors, LLC | 48,143 | $4.22M | 0.02% | −466−1.0% | Reduced |
| Public Employees Retirement System of Ohio | 47,868 | $4.20M | 0.01% | −9,218−16.1% | Reduced |
| Nisa Investment Advisors, LLC | 47,165 | $4.14M | 0.01% | +3,038+6.9% | Added |
| Russell Investments Group, Ltd. | 46,303 | $4.06M | 0.00% | −1,300−2.7% | Reduced |
| Brandes Investment Partners, LP | 45,834 | $4.02M | 0.03% | +5,230+12.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 45,802 | $4.02M | 0.03% | +2,208+5.1% | Added |
| Vident Advisory, LLC | 45,379 | $3.98M | 0.03% | +351+0.8% | Added |
| Jupiter Topco LLC | 45,122 | $3.96M | 0.00% | +45,122 | New |
| Jump Financial, LLC | 44,571 | $3.91M | 0.03% | +38,115+590.4% | Added |
| MetLife Investment Management | 44,178 | $3.87M | 0.02% | −1,673−3.6% | Reduced |
| Polar Asset Management Partners Inc. | 44,075 | $3.87M | 0.07% | +44,075 | New |
| Illinois Municipal Retirement Fund | 43,994 | $3.86M | 0.04% | −4,045−8.4% | Reduced |
| Treasurer of the State of North Carolina | 43,317 | $3.80M | 0.01% | −480−1.1% | Reduced |
| Amalgamated Bank | 42,927 | $3.77M | 0.03% | +260+0.6% | Added |
| Weiss Asset Management LP | 42,574 | $3.73M | 0.04% | +42,574 | New |
| Ingalls & Snyder LLC | 42,356 | $3.71M | 0.10% | +2,503+6.3% | Added |
| Oxbow Advisors, LLC | 42,099 | $3.69M | 0.30% | +257+0.6% | Added |
| New York State Common Retirement Fund | 41,900 | $3.68M | 0.00% | 00.0% | Unchanged |
| Morningstar Investment Management LLC | 46,245 | $3.63M | 0.22% | 00.0% | Unchanged |
| New Age Alpha Advisors, LLC | 41,141 | $3.61M | 0.15% | −4,415−9.7% | Reduced |
| Moran Wealth Management, LLC | 41,009 | $3.60M | 0.10% | −1,947−4.5% | Reduced |
| Graham Capital Management, L.P. | 40,859 | $3.58M | 0.10% | +7,015+20.7% | Added |
| Mercer Global Advisors Inc | 40,231 | $3.53M | 0.00% | +13,427+50.1% | Added |
| Atria Investments LLC | 39,169 | $3.44M | 0.03% | −288−0.7% | Reduced |
| Engineers Gate Manager LP | 38,836 | $3.41M | 0.04% | −5,197−11.8% | Reduced |
| State of Tennessee, Treasury Department | 38,148 | $3.35M | 0.01% | −687−1.8% | Reduced |
| Aquatic Capital Management LLC | 37,864 | $3.32M | 0.11% | +30,406+407.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 37,708 | $3.31M | 0.01% | 00.0% | Unchanged |
| Wealth Alliance Advisory Group, LLC | 37,504 | $3.29M | 0.48% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 37,301 | $3.27M | 0.04% | +2,800+8.1% | Added |
| Colony Group, LLC | 36,747 | $3.22M | 0.00% | −72−0.2% | Reduced |
| Vanguard Global Advisers, LLC | 35,945 | $3.15M | 0.00% | −1,981−5.2% | Reduced |
| Henshaw Capital LLC | 35,944 | $3.15M | 0.10% | −7,157−16.6% | Reduced |
| Diversified Trust Co | 35,572 | $3.12M | 0.05% | +80+0.2% | Added |
| Abn Amro Investment Solutions | 35,510 | $3.11M | 0.03% | −300−0.8% | Reduced |
| Neuberger Berman Group LLC | 34,896 | $3.06M | 0.00% | +13,745+65.0% | Added |
| Credit Agricole S A | 34,621 | $3.04M | 0.01% | 00.0% | Unchanged |
| Cerity Partners LLC | 34,363 | $3.01M | 0.00% | +1,242+3.7% | Added |
| Third View Private Wealth, LLC | 34,268 | $3.01M | 0.37% | −2,237−6.1% | Reduced |
| Mutual of America Capital Management LLC | 34,036 | $2.99M | 0.03% | −1,563−4.4% | Reduced |
| Handelsbanken Fonder AB | 33,900 | $2.97M | 0.01% | 00.0% | Unchanged |
| Callan Family Office, LLC | 32,957 | $2.89M | 0.06% | +4,666+16.5% | Added |
| Allstate Corp | 32,582 | $2.86M | 0.03% | −3,730−10.3% | Reduced |
| Voleon Capital Management LP | 32,402 | $2.84M | 0.05% | +32,402 | New |
| Johnson Investment Counsel Inc | 32,092 | $2.81M | 0.02% | −4,980−13.4% | Reduced |
| State of New Jersey Common Pension Fund D | 30,872 | $2.71M | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 30,655 | $2.69M | 0.00% | +11,127+57.0% | Added |
| Sepio Capital, LP | 30,232 | $2.65M | 0.13% | +633+2.1% | Added |
| Cetera Investment Advisers | 30,110 | $2.64M | 0.00% | −7,930−20.8% | Reduced |
| SRS Capital Advisors, Inc. | 30,065 | $2.64M | 0.02% | +10,746+55.6% | Added |
| Teachers Retirement System of the State of Kentucky | 29,054 | $2.55M | 0.02% | −2,000−6.4% | Reduced |
| JustInvest LLC | 28,160 | $2.47M | 0.02% | −4,351−13.4% | Reduced |
| The PNC Financial Services Group, Inc. | 28,117 | $2.47M | 0.00% | −549−1.9% | Reduced |
| Arizona State Retirement System | 27,829 | $2.44M | 0.01% | −757−2.6% | Reduced |
| KBC Group NV | 27,506 | $2.41M | 0.01% | −12,209−30.7% | Reduced |
| Louisiana State Employees Retirement System | 26,700 | $2.34M | 0.03% | −200−0.7% | Reduced |
| Vanguard Investments Australia, Ltd. | 26,678 | $2.34M | 0.01% | 00.0% | Unchanged |
| Captrust Financial Advisors | 26,392 | $2.31M | 0.00% | +2,642+11.1% | Added |
| Yousif Capital Management, LLC | 26,241 | $2.30M | 0.03% | −1,961−7.0% | Reduced |
| Fifth Third Bancorp | 24,840 | $2.18M | 0.00% | −1,850−6.9% | Reduced |
| Campbell & CO Investment Adviser LLC | 24,694 | $2.17M | 0.11% | +19,246+353.3% | Added |
| MML Investors Services, LLC | 23,138 | $2.03M | 0.00% | −4,050−14.9% | Reduced |
| First Citizens Bank & Trust Co | 23,011 | $2.02M | 0.03% | −113−0.5% | Reduced |
| Quadrant Capital Group LLC | 22,830 | $2.00M | 0.05% | −392−1.7% | Reduced |
| Deutsche Bank AG | 22,316 | $1.96M | 0.00% | +1,097+5.2% | Added |