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, Q3 2023
Institutional positions in SEI Investments Co as of Sep 30, 2023. 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
- 462
- +7 vs. Q2 2023
- Shares held
- 93.4M
- +292.8K (+0.3%) vs. Q2 2023
- Total value
- $5.63B
- +$106.9M (+1.9%) vs. Q2 2023
- New holders
- 47
- 152 more added
- Sold out
- 40
- 165 more reduced
3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| TD Asset Management Inc | 186,616 | $11.2M | 0.01% | +230.0% | Added |
| Vestcor Inc | 191,448 | $11.5M | 0.42% | 00.0% | Unchanged |
| PGGM Investments | 195,352 | $11.8M | 0.20% | +893+0.5% | Added |
| Schroder Investment Management Group | 195,773 | $11.8M | 0.02% | −10,578−5.1% | Reduced |
| Bridgewater Associates, LP | 199,051 | $12.0M | 0.07% | +167,622+533.3% | Added |
| Man Group plc | – | $12.0M | 0.04% | – | – |
| State of Alaska, Department of Revenue | 199,985 | $12.0M | 0.15% | −605−0.3% | Reduced |
| Caisse de Depot Et Placement du Quebec | 210,128 | $12.7M | 0.04% | +103,468+97.0% | Added |
| Leith Wheeler Investment Counsel Ltd. | 219,906 | $13.2M | 1.75% | +28,741+15.0% | Added |
| Citigroup Inc | 220,716 | $13.3M | 0.02% | +12,486+6.0% | Added |
| Crestwood Advisors Group LLC | 224,417 | $13.5M | 0.35% | +1,022+0.5% | Added |
| KBC Group NV | 226,453 | $13.6M | 0.06% | −41,775−15.6% | Reduced |
| Renaissance Technologies LLC | 238,926 | $14.4M | 0.02% | −90,500−27.5% | Reduced |
| Barclays PLC | 247,271 | $14.9M | 0.01% | +106,967+76.2% | Added |
| Advisor Group Holdings, Inc. | 248,540 | $15.0M | 0.02% | +119,708+92.9% | Added |
| Thrivent Financial for Lutherans | 254,946 | $15.4M | 0.04% | +228,796+874.9% | Added |
| New York State Common Retirement Fund | 263,437 | $15.9M | 0.02% | −16,182−5.8% | Reduced |
| Retirement Systems of Alabama | 272,300 | $16.4M | 0.08% | −4,961−1.8% | Reduced |
| Nuveen Asset Management, LLC | 286,391 | $17.2M | 0.01% | −5,185−1.8% | Reduced |
| JLB & Associates Inc | 287,316 | $17.3M | 2.71% | −14,200−4.7% | Reduced |
| Amundi | 307,721 | $17.4M | 0.01% | −14,794−4.6% | Reduced |
| JPMorgan Chase & Co | 295,040 | $17.8M | 0.00% | −62,254−17.4% | Reduced |
| AQR Capital Management LLC | 295,490 | $17.8M | 0.04% | −102,273−25.7% | Reduced |
| American Capital Management Inc | 317,237 | $19.1M | 0.74% | −50,170−13.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 317,493 | $19.1M | 0.02% | −7,331−2.3% | Reduced |
| Bank of Montreal | 312,534 | $19.3M | 0.01% | +205,811+192.8% | Added |
| Rhumbline Advisers | 343,081 | $20.7M | 0.02% | −5,066−1.5% | Reduced |
| FMR LLC | 360,732 | $21.7M | 0.00% | +109,962+43.8% | Added |
| Goldman Sachs Group Inc | 368,545 | $22.2M | 0.01% | +31,702+9.4% | Added |
| Envestnet Asset Management Inc | 381,037 | $22.9M | 0.01% | +155,991+69.3% | Added |
| Principal Financial Group Inc | 381,249 | $23.0M | 0.02% | −9,005−2.3% | Reduced |
| Qube Research & Technologies Ltd | 404,014 | $24.3M | 0.07% | +55,304+15.9% | Added |
| Raymond James & Associates | 474,836 | $28.6M | 0.02% | +18,397+4.0% | Added |
| Acadian Asset Management LLC | 477,981 | $28.8M | 0.12% | +358,282+299.3% | Added |
| ProShare Advisors LLC | 546,705 | $32.9M | 0.10% | −10,711−1.9% | Reduced |
| HSBC Holdings PLC | 547,262 | $33.0M | 0.04% | −6,835−1.2% | Reduced |
| Millennium Management LLC | 566,246 | $34.1M | 0.04% | −227,345−28.6% | Reduced |
| Ameriprise Financial Inc | 597,348 | $36.0M | 0.01% | −27,636−4.4% | Reduced |
| Norges Bank | 630,628 | $38.0M | 0.01% | +70,200+12.5% | Added |
| Charles Schwab Investment Management Inc | 642,965 | $38.7M | 0.01% | +3,535+0.6% | Added |
| Royal Bank of Canada | 649,468 | $39.1M | 0.01% | −26,128−3.9% | Reduced |
| Brown Advisory Inc | 681,637 | $41.1M | 0.07% | +17,740+2.7% | Added |
| UBS Asset Management Americas Inc | 698,628 | $42.1M | 0.02% | −52,813−7.0% | Reduced |
| Natixis Advisors, L.P. | 704,010 | $42.4M | 0.13% | −32,675−4.4% | Reduced |
| Legal & General Group Plc | 952,364 | $57.4M | 0.02% | −12,141−1.3% | Reduced |
| Invesco Ltd. | 1,125,659 | $67.8M | 0.02% | +475,226+73.1% | Added |
| Northern Trust Corp | 1,143,777 | $68.9M | 0.01% | +70,937+6.6% | Added |
| Dimensional Fund Advisors LP | 1,177,771 | $70.9M | 0.02% | −4,355−0.4% | Reduced |
| Bank of New York Mellon Corp | 1,182,085 | $71.2M | 0.02% | −34,427−2.8% | Reduced |
| Tandem Investment Advisors, Inc. | 1,218,267 | $73.4M | 3.10% | +61,228+5.3% | Added |
| Boston Trust Walden Corp | 1,290,344 | $77.7M | 0.65% | −808−0.1% | Reduced |
| Citadel Advisors LLC | 1,297,743 | $78.2M | 0.08% | −155,408−10.7% | Reduced |
| Royce & Associates LP | 1,428,297 | $86.0M | 0.88% | −35,060−2.4% | Reduced |
| Great West Life Assurance Co | 1,578,974 | $95.0M | 0.23% | −315,065−16.6% | Reduced |
| Geode Capital Management, LLC | 1,940,629 | $116.8M | 0.01% | +150,723+8.4% | Added |
| Bank of America Corp | 3,042,686 | $183.3M | 0.02% | −72,288−2.3% | Reduced |
| Beutel, Goodman & Co Ltd. | 4,036,374 | $243.1M | 1.44% | −9150.0% | Reduced |
| State Street Corp | 5,796,371 | $349.1M | 0.02% | −382,381−6.2% | Reduced |
| Morgan Stanley | 5,948,658 | $358.3M | 0.04% | −320,175−5.1% | Reduced |
| Loomis Sayles & Co L P | 9,613,174 | $579.0M | 0.99% | −327,453−3.3% | Reduced |
| BlackRock Inc. | 11,359,942 | $684.2M | 0.02% | +158,281+1.4% | Added |
| Vanguard Group Inc | 11,983,461 | $721.8M | 0.02% | −116,777−1.0% | Reduced |
| Proequities, Inc. | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Andra AP-fonden | 0 | $0 | 0.00% | −114,100−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −79,692−100.0% | Sold out |
| Weiss Multi-Strategy Advisers LLC | 0 | $0 | 0.00% | −58,411−100.0% | Sold out |
| Swiss Life Asset Management Ltd | 0 | $0 | 0.00% | −49,131−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −47,891−100.0% | Sold out |
| Vident Investment Advisory, LLC | 0 | $0 | 0.00% | −45,424−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −43,885−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −31,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −27,100−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −24,830−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −24,050−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −21,319−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −17,681−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −16,730−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −9,513−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −7,069−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −7,100−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −6,881−100.0% | Sold out |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −6,732−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −6,200−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −6,015−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −5,486−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −4,882−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −4,549−100.0% | Sold out |
| Veritable, L.P. | 0 | $0 | 0.00% | −4,499−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −4,363−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −3,926−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −3,835−100.0% | Sold out |
| GW Henssler & Associates Ltd | 0 | $0 | 0.00% | −3,673−100.0% | Sold out |
| Wetherby Asset Management Inc | 0 | $0 | 0.00% | −3,410−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −915−100.0% | Sold out |
| Vestor Capital, LLC | 0 | $0 | 0.00% | −747−100.0% | Sold out |
| AM Squared Ltd | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Arlington Partners LLC | 0 | $0 | 0.00% | −248−100.0% | Sold out |
| Crewe Advisors LLC | 0 | $0 | 0.00% | −166−100.0% | Sold out |
| TD Private Client Wealth LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Disciplined Investments, LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |