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 2025
Institutional positions in SEI Investments Co as of Jun 30, 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
- 564
- +26 vs. Q1 2025
- Shares held
- 90.1M
- −3.55M (−3.8%) vs. Q1 2025
- Total value
- $8.09B
- +$829.7M (+11.4%) vs. Q1 2025
- New holders
- 105
- 184 more added
- Sold out
- 79
- 197 more reduced
8 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atria Investments LLC | 39,307 | $3.53M | 0.04% | −1,008−2.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 39,673 | $3.57M | 0.03% | +3,428+9.5% | Added |
| State of Tennessee, Treasury Department | 40,498 | $3.64M | 0.01% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 40,700 | $3.66M | 0.01% | +40,700 | New |
| Sanctuary Advisors, LLC | 41,117 | $3.69M | 0.02% | −380−0.9% | Reduced |
| Citigroup Inc | 41,467 | $3.73M | 0.00% | −25,517−38.1% | Reduced |
| Henshaw Capital LLC | 42,843 | $3.85M | 0.15% | +249+0.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 43,243 | $3.89M | 0.01% | +43,243 | New |
| Bokf, NA | 43,280 | $3.89M | 0.06% | +555+1.3% | Added |
| Nisa Investment Advisors, LLC | 43,835 | $3.94M | 0.02% | +58+0.1% | Added |
| Maltese Capital Management LLC | 45,000 | $4.04M | 0.57% | +15,000+50.0% | Added |
| Amalgamated Bank | 45,895 | $4.12M | 0.03% | −480−1.0% | Reduced |
| KBC Group NV | 46,001 | $4.13M | 0.01% | −227,205−83.2% | Reduced |
| Ascent Group, LLC | 46,015 | $4.13M | 0.16% | −3,091−6.3% | Reduced |
| Janus Henderson Group PLC | 46,100 | $4.14M | 0.00% | +42,153+1,068.0% | Added |
| New York State Common Retirement Fund | 46,500 | $4.18M | 0.01% | +946+2.1% | Added |
| Illinois Municipal Retirement Fund | 46,953 | $4.22M | 0.06% | +20,864+80.0% | Added |
| Mutual of America Capital Management LLC | 47,051 | $4.23M | 0.05% | −2,565−5.2% | Reduced |
| Moran Wealth Management, LLC | 47,238 | $4.24M | 0.13% | +47,238 | New |
| Capital Fund Management S.A. | 47,602 | $4.28M | 0.05% | +30,088+171.8% | Added |
| Nebula Research & Development LLC | 47,985 | $4.31M | 0.37% | +30,630+176.5% | Added |
| Wellington Capital Management, Inc. | 50,200 | $4.51M | 6.80% | +50,200 | New |
| Ensign Peak Advisors, Inc | 50,643 | $4.55M | 0.01% | −12,794−20.2% | Reduced |
| MetLife Investment Management | 51,101 | $4.59M | 0.03% | −2,492−4.6% | Reduced |
| Dark Forest Capital Management LP | 53,278 | $4.79M | 0.19% | +50,383+1,740.3% | Added |
| APG Asset Management N.V. | 62,600 | $4.79M | 0.01% | +1,700+2.8% | Added |
| CWM, LLC | 53,837 | $4.84M | 0.02% | −991−1.8% | Reduced |
| CBOE Vest Financial, LLC | 54,326 | $4.88M | 0.07% | +21,094+63.5% | Added |
| IFG Advisory, LLC | 56,053 | $5.04M | 0.25% | +104+0.2% | Added |
| Winton Group Ltd | 56,147 | $5.05M | 0.26% | −14,586−20.6% | Reduced |
| Court Place Advisors, LLC | 56,150 | $5.05M | 1.59% | −1,945−3.3% | Reduced |
| XTX Topco Ltd | 57,884 | $5.20M | 0.22% | +57,884 | New |
| HBK Sorce Advisory LLC | 57,934 | $5.21M | 0.14% | −58−0.1% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 59,413 | $5.34M | 0.02% | −10,983−15.6% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 59,530 | $5.35M | 0.01% | −27,421−31.5% | Reduced |
| Portfolio Design Labs, LLC | 59,777 | $5.37M | 1.05% | −1,301−2.1% | Reduced |
| Verition Fund Management LLC | 60,330 | $5.42M | 0.03% | +34,091+129.9% | Added |
| Great West Life Assurance Co | 62,603 | $5.63M | 0.01% | −27,935−30.9% | Reduced |
| Banco Santander, S.A. | 63,920 | $5.74M | 0.05% | −43,547−40.5% | Reduced |
| Pinebridge Investments, L.P. | 64,686 | $5.81M | 0.05% | −59,831−48.1% | Reduced |
| Public Employees Retirement System of Ohio | 64,909 | $5.83M | 0.02% | +2,523+4.0% | Added |
| HSBC Holdings PLC | 66,561 | $5.97M | 0.00% | −283,953−81.0% | Reduced |
| Southernsun Asset Management, LLC | 66,950 | $6.02M | 0.84% | +114+0.2% | Added |
| PDT Partners, LLC | 67,666 | $6.08M | 0.34% | +67,666 | New |
| Union Heritage Capital, LLC | 68,700 | $6.17M | 2.15% | 00.0% | Unchanged |
| RK Asset Management, LLC | 69,214 | $6.22M | 6.00% | −109−0.2% | Reduced |
| Taylor Hoffman Capital Management LLC | 69,237 | $6.22M | 2.13% | +2,528+3.8% | Added |
| Los Angeles Capital Management LLC | 70,500 | $6.34M | 0.02% | −115,916−62.2% | Reduced |
| Price T Rowe Associates Inc | 72,304 | $6.50M | 0.00% | +3,789+5.5% | Added |
| Kathmere Capital Management, LLC | 74,022 | $6.65M | 0.51% | +74,022 | New |
| Danske Bank A/S | 75,571 | $6.79M | 0.02% | −298,664−79.8% | Reduced |
| Modera Wealth Management, LLC | 75,719 | $6.80M | 0.08% | −2,797−3.6% | Reduced |
| Manufacturers Life Insurance Company, The | 76,974 | $6.92M | 0.01% | −3,735−4.6% | Reduced |
| Robeco Institutional Asset Management B.V. | 77,185 | $6.94M | 0.01% | −24,920−24.4% | Reduced |
| Umb Bank N A | 77,526 | $6.97M | 0.11% | −4,753−5.8% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 79,052 | $7.10M | 0.02% | +1,109+1.4% | Added |
| Cerity Partners LLC | 82,433 | $7.41M | 0.01% | +63,150+327.5% | Added |
| Toroso Investments, LLC | 84,133 | $7.56M | 0.05% | +84,133 | New |
| Schroder Investment Management Group | 86,152 | $7.74M | 0.01% | −62,951−42.2% | Reduced |
| Engineers Gate Manager LP | 87,117 | $7.83M | 0.10% | +71,980+475.5% | Added |
| Two Sigma Advisers, LP | 88,400 | $7.94M | 0.02% | +7,000+8.6% | Added |
| State of Wisconsin Investment Board | 92,463 | $8.31M | 0.02% | +3,066+3.4% | Added |
| Jacobs Levy Equity Management, Inc | 92,541 | $8.32M | 0.03% | −115,812−55.6% | Reduced |
| Worldquant Millennium Advisors LLC | 93,917 | $8.44M | 0.04% | +65,207+227.1% | Added |
| Teacher Retirement System of Texas | 94,711 | $8.51M | 0.04% | −222,888−70.2% | Reduced |
| Wells Fargo & Company | 95,667 | $8.60M | 0.00% | +32,503+51.5% | Added |
| LPL Financial LLC | 99,055 | $8.90M | 0.00% | +5,600+6.0% | Added |
| Rockefeller Capital Management L.P. | 100,037 | $8.99M | 0.02% | +100,037 | New |
| Susquehanna Portfolio Strategies, LLC | 100,596 | $9.04M | 0.20% | +100,596 | New |
| Quantinno Capital Management LP | 103,006 | $9.26M | 0.04% | +57,063+124.2% | Added |
| HRT Financial LP | 103,030 | $9.26M | 0.04% | +103,030 | New |
| Thrivent Financial for Lutherans | 104,293 | $9.37M | 0.02% | −27,115−20.6% | Reduced |
| Acadian Asset Management LLC | 104,687 | $9.40M | 0.02% | −146,394−58.3% | Reduced |
| California State Teachers Retirement System | 104,769 | $9.41M | 0.01% | −27,192−20.6% | Reduced |
| Abn Amro Investment Solutions | 107,850 | $9.69M | 0.19% | −2,750−2.5% | Reduced |
| Hahn Capital Management LLC | 113,207 | $10.2M | 4.80% | −1,756−1.5% | Reduced |
| Truist Financial Corp | 115,153 | $10.3M | 0.02% | −489−0.4% | Reduced |
| Cubist Systematic Strategies, LLC | 116,093 | $10.4M | 0.11% | +116,093 | New |
| American Century Companies Inc | 116,161 | $10.4M | 0.01% | +16,843+17.0% | Added |
| Bank of Nova Scotia | 117,000 | $10.5M | 0.02% | +113,122+2,917.0% | Added |
| New York State Teachers Retirement System | 117,501 | $10.6M | 0.02% | −468−0.4% | Reduced |
| Bank of Montreal | 123,098 | $11.1M | 0.01% | −11,521−8.6% | Reduced |
| TD Asset Management Inc | 125,676 | $11.3M | 0.01% | −19,288−13.3% | Reduced |
| Alliancebernstein L.P. | 126,533 | $11.4M | 0.00% | −855−0.7% | Reduced |
| Bridgewater Associates, LP | 129,587 | $11.6M | 0.05% | −16,993−11.6% | Reduced |
| Squarepoint Ops LLC | 133,094 | $12.0M | 0.03% | +133,094 | New |
| Van Eck Associates Corp | 135,196 | $12.1M | 0.01% | +74,271+121.9% | Added |
| Janney Montgomery Scott LLC | 135,511 | $12.2M | 0.03% | +132,857+5,005.9% | Added |
| State Board of Administration of Florida Retirement System | 137,129 | $12.3M | 0.02% | −5,308−3.7% | Reduced |
| King Luther Capital Management Corp | 138,265 | $12.4M | 0.05% | +32,894+31.2% | Added |
| Advisor Group Holdings, Inc. | 139,654 | $12.5M | 0.02% | +9,442+7.3% | Added |
| Schonfeld Strategic Advisors LLC | 143,685 | $12.9M | 0.10% | +53,567+59.4% | Added |
| Allianz Asset Management GmbH | 143,855 | $12.9M | 0.02% | −49,898−25.8% | Reduced |
| Russell Investments Group, Ltd. | 145,003 | $13.0M | 0.02% | −34,619−19.3% | Reduced |
| D. E. Shaw & Co., Inc. | 145,566 | $13.1M | 0.01% | +145,566 | New |
| Foyston, Gordon, & Payne Inc | 151,481 | $13.6M | 3.10% | +9,739+6.9% | Added |
| Victory Capital Management Inc | 153,536 | $13.8M | 0.01% | −21,115−12.1% | Reduced |
| Barclays PLC | 154,078 | $13.8M | 0.01% | +38,491+33.3% | Added |
| Brandywine Global Investment Management, LLC | 154,577 | $13.9M | 0.10% | +77,854+101.5% | Added |
| KLP Kapitalforvaltning AS | 155,500 | $14.0M | 0.06% | −6,800−4.2% | Reduced |