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 |
|---|---|---|---|---|---|
| Ascent Group, LLC | 49,106 | $3.81M | 0.16% | +28,241+135.4% | Added |
| Pathstone Holdings, LLC | 49,243 | $3.82M | 0.02% | +14,195+40.5% | Added |
| Mutual of America Capital Management LLC | 49,616 | $3.85M | 0.04% | −2,137−4.1% | Reduced |
| Prudential Financial Inc | 50,208 | $3.90M | 0.01% | −86,975−63.4% | Reduced |
| Asset Management One Co.,Ltd. | 51,077 | $3.97M | 0.01% | +6,612+14.9% | Added |
| Nomura Asset Management Co Ltd | 51,459 | $3.99M | 0.01% | −350−0.7% | Reduced |
| Graham Capital Management, L.P. | 53,119 | $4.12M | 0.13% | +11,163+26.6% | Added |
| MetLife Investment Management | 53,593 | $4.16M | 0.02% | −1,668−3.0% | Reduced |
| CWM, LLC | 54,828 | $4.26M | 0.02% | +216+0.4% | Added |
| IFG Advisory, LLC | 55,949 | $4.34M | 0.24% | −1,501−2.6% | Reduced |
| APG Asset Management N.V. | 60,900 | $4.38M | 0.01% | −1,400−2.2% | Reduced |
| Pictet Asset Management Holding SA | 57,780 | $4.49M | 0.00% | −1,200−2.0% | Reduced |
| HBK Sorce Advisory LLC | 57,992 | $4.50M | 0.13% | −32−0.1% | Reduced |
| Court Place Advisors, LLC | 58,095 | $4.51M | 1.50% | −146−0.3% | Reduced |
| Van Eck Associates Corp | 60,925 | $4.73M | 0.01% | +1,600+2.7% | Added |
| Portfolio Design Labs, LLC | 61,078 | $4.74M | 0.98% | +30,976+102.9% | Added |
| West Coast Financial LLC | 62,059 | $4.82M | 0.55% | −56,044−47.5% | Reduced |
| Public Employees Retirement System of Ohio | 62,386 | $4.84M | 0.02% | −68−0.1% | Reduced |
| Wells Fargo & Company | 63,164 | $4.90M | 0.00% | +19,661+45.2% | Added |
| Ensign Peak Advisors, Inc | 63,437 | $4.92M | 0.01% | −6,190−8.9% | Reduced |
| Taylor Hoffman Capital Management LLC | 66,709 | $5.16M | 1.91% | +1,524+2.3% | Added |
| Southernsun Asset Management, LLC | 66,836 | $5.19M | 0.75% | +187+0.3% | Added |
| Citigroup Inc | 66,984 | $5.20M | 0.00% | −26,115−28.1% | Reduced |
| Price T Rowe Associates Inc | 68,515 | $5.32M | 0.00% | +4,626+7.2% | Added |
| Union Heritage Capital, LLC | 68,700 | $5.33M | 1.99% | 00.0% | Unchanged |
| RK Asset Management, LLC | 69,323 | $5.38M | 4.97% | −1,236−1.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 70,396 | $5.43M | 0.02% | −13,751−16.3% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 70,272 | $5.46M | 0.06% | +43,890+166.4% | Added |
| Winton Group Ltd | 70,733 | $5.49M | 0.33% | +70,733 | New |
| Two Sigma Investments, LP | 75,694 | $5.88M | 0.01% | −103,654−57.8% | Reduced |
| Brandywine Global Investment Management, LLC | 76,723 | $5.96M | 0.04% | +8,843+13.0% | Added |
| Chevy Chase Trust Holdings, Inc. | 77,943 | $6.05M | 0.02% | −234−0.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 78,301 | $6.08M | 0.01% | +97+0.1% | Added |
| Modera Wealth Management, LLC | 78,516 | $6.10M | 0.08% | −4,819−5.8% | Reduced |
| Andra AP-fonden | 79,100 | $6.14M | 0.10% | +700+0.9% | Added |
| Manufacturers Life Insurance Company, The | 80,709 | $6.27M | 0.01% | −2,038−2.5% | Reduced |
| Two Sigma Advisers, LP | 81,400 | $6.32M | 0.01% | +31,300+62.5% | Added |
| Umb Bank N A | 82,279 | $6.39M | 0.11% | −27,998−25.4% | Reduced |
| BNP Paribas Arbitrage, SA | 86,862 | $6.74M | 0.01% | +12,098+16.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 86,951 | $6.75M | 0.01% | +15,207+21.2% | Added |
| Treasurer of the State of North Carolina | 87,547 | $6.80M | 0.03% | +43,610+99.3% | Added |
| Zacks Investment Management | 89,116 | $6.92M | 0.06% | +3,009+3.5% | Added |
| State of Wisconsin Investment Board | 89,397 | $6.94M | 0.02% | +340+0.4% | Added |
| Schonfeld Strategic Advisors LLC | 90,118 | $7.00M | 0.05% | +48,231+115.1% | Added |
| Great West Life Assurance Co | 90,538 | $7.03M | 0.01% | −9,187−9.2% | Reduced |
| LPL Financial LLC | 93,455 | $7.25M | 0.00% | +5,291+6.0% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 97,573 | $7.57M | 0.02% | −31,034−24.1% | Reduced |
| American Century Companies Inc | 99,318 | $7.71M | 0.00% | −104,434−51.3% | Reduced |
| Robeco Institutional Asset Management B.V. | 102,105 | $7.93M | 0.02% | +1,020+1.0% | Added |
| ExodusPoint Capital Management, LP | 103,604 | $8.04M | 0.11% | +43,056+71.1% | Added |
| King Luther Capital Management Corp | 105,371 | $8.18M | 0.04% | +73,308+228.6% | Added |
| Corebridge Financial, Inc. | 106,499 | $8.27M | 0.05% | −4,372−3.9% | Reduced |
| Holocene Advisors, LP | 106,626 | $8.28M | 0.02% | +31,499+41.9% | Added |
| Banco Santander, S.A. | 107,467 | $8.34M | 0.09% | +65,897+158.5% | Added |
| Abn Amro Investment Solutions | 110,600 | $8.59M | 0.18% | +22,685+25.8% | Added |
| Korea Investment CORP | 114,684 | $8.90M | 0.02% | −74,800−39.5% | Reduced |
| Hahn Capital Management LLC | 114,963 | $8.92M | 4.32% | −11,947−9.4% | Reduced |
| Barclays PLC | 115,587 | $8.97M | 0.00% | −29,791−20.5% | Reduced |
| Truist Financial Corp | 115,642 | $8.98M | 0.01% | −4,349−3.6% | Reduced |
| New York State Teachers Retirement System | 117,969 | $9.16M | 0.02% | −546−0.5% | Reduced |
| Pinebridge Investments, L.P. | 124,517 | $9.67M | 0.08% | −8,564−6.4% | Reduced |
| Alliancebernstein L.P. | 127,388 | $9.89M | 0.00% | −41,746−24.7% | Reduced |
| Advisor Group Holdings, Inc. | 130,212 | $10.1M | 0.02% | +7,308+5.9% | Added |
| Thrivent Financial for Lutherans | 131,408 | $10.2M | 0.02% | −40,725−23.7% | Reduced |
| California State Teachers Retirement System | 131,961 | $10.2M | 0.01% | +1,406+1.1% | Added |
| Bank of Montreal | 134,619 | $10.5M | 0.01% | −3,532−2.6% | Reduced |
| Candriam Luxembourg S.C.A. | 135,207 | $10.5M | 0.07% | +95,245+238.3% | Added |
| Foyston, Gordon, & Payne Inc | 141,742 | $11.0M | 2.72% | +22,019+18.4% | Added |
| State Board of Administration of Florida Retirement System | 142,437 | $11.1M | 0.02% | 00.0% | Unchanged |
| TD Asset Management Inc | 144,964 | $11.3M | 0.01% | +5,590+4.0% | Added |
| Bridgewater Associates, LP | 146,580 | $11.4M | 0.05% | +103,660+241.5% | Added |
| Schroder Investment Management Group | 149,103 | $11.5M | 0.01% | +2,868+2.0% | Added |
| Achmea Investment Management B.V. | 154,627 | $12.0M | 0.17% | +71,767+86.6% | Added |
| California Public Employees Retirement System | 159,267 | $12.4M | 0.01% | −834−0.5% | Reduced |
| KLP Kapitalforvaltning AS | 162,300 | $12.6M | 0.06% | 00.0% | Unchanged |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $13.4M | 0.12% | 00.0% | Unchanged |
| Victory Capital Management Inc | 174,651 | $13.6M | 0.01% | +10,603+6.5% | Added |
| Vestcor Inc | 176,788 | $13.7M | 0.46% | −8,164−4.4% | Reduced |
| Russell Investments Group, Ltd. | 179,622 | $13.9M | 0.02% | +72,730+68.0% | Added |
| Los Angeles Capital Management LLC | 186,416 | $14.5M | 0.06% | −137,320−42.4% | Reduced |
| Allianz Asset Management GmbH | 193,753 | $15.0M | 0.02% | −36,748−15.9% | Reduced |
| Renaissance Technologies LLC | 197,826 | $15.4M | 0.02% | +127,400+180.9% | Added |
| State of Alaska, Department of Revenue | 199,330 | $15.5M | 0.18% | +125+0.1% | Added |
| Leith Wheeler Investment Counsel Ltd. | 205,809 | $16.0M | 1.11% | +2,592+1.3% | Added |
| Crestwood Advisors Group LLC | 207,973 | $16.1M | 0.31% | −1,059−0.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 208,353 | $16.2M | 0.06% | +208,353 | New |
| Deutsche Bank AG | 216,212 | $16.8M | 0.01% | +63,810+41.9% | Added |
| Goldman Sachs Group Inc | 219,699 | $17.1M | 0.00% | −2,785−1.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 220,410 | $17.1M | 0.01% | +877+0.4% | Added |
| Principal Financial Group Inc | 231,039 | $17.9M | 0.01% | −3,033−1.3% | Reduced |
| Martingale Asset Management L P | 231,643 | $18.0M | 0.46% | +972+0.4% | Added |
| Qube Research & Technologies Ltd | 238,493 | $18.5M | 0.03% | −33,009−12.2% | Reduced |
| Jane Street Group, LLC | 242,339 | $18.8M | 0.03% | +152,567+169.9% | Added |
| Acadian Asset Management LLC | 251,081 | $19.5M | 0.06% | −99,664−28.4% | Reduced |
| Interval Partners, LP | 252,191 | $19.6M | 0.69% | +52,718+26.4% | Added |
| KBC Group NV | 273,206 | $21.2M | 0.07% | −94,097−25.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 273,979 | $21.3M | 0.02% | −29,099−9.6% | Reduced |
| Nuveen, LLC | 275,763 | $21.4M | 0.01% | +275,763 | New |
| Retirement Systems of Alabama | 276,324 | $21.5M | 0.08% | −1,795−0.6% | Reduced |
| JLB & Associates Inc | 276,604 | $21.5M | 2.99% | −4,582−1.6% | Reduced |