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, Q4 2023
Institutional positions in SEI Investments Co as of Dec 31, 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
- 491
- +37 vs. Q3 2023
- Shares held
- 92.8M
- −426.6K (−0.5%) vs. Q3 2023
- Total value
- $5.90B
- +$270.9M (+4.8%) vs. Q3 2023
- New holders
- 69
- 142 more added
- Sold out
- 32
- 182 more reduced
8 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Crestwood Advisors Group LLC | 108,276 | $6.88M | 0.16% | −116,141−51.8% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 110,000 | $6.99M | 0.02% | +110,000 | New |
| Allianz Asset Management GmbH | 111,758 | $7.10M | 0.01% | +5,337+5.0% | Added |
| American Century Companies Inc | 112,792 | $7.17M | 0.00% | −10,884−8.8% | Reduced |
| Bank of Montreal | 113,047 | $7.26M | 0.00% | −199,487−63.8% | Reduced |
| Bank of Nova Scotia | 114,840 | $7.30M | 0.01% | +75,358+190.9% | Added |
| Alps Advisors Inc | 114,853 | $7.30M | 0.06% | +16,143+16.4% | Added |
| Abn Amro Investment Solutions | 115,455 | $7.34M | 0.13% | −3,635−3.1% | Reduced |
| UBS Group AG | 121,969 | $7.75M | 0.00% | −49,385−28.8% | Reduced |
| Advisor Group Holdings, Inc. | 124,589 | $7.92M | 0.01% | −123,951−49.9% | Reduced |
| Victory Capital Management Inc | 127,443 | $8.10M | 0.01% | +2,934+2.4% | Added |
| Bridgewater Associates, LP | 132,836 | $8.44M | 0.05% | −66,215−33.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 133,420 | $8.48M | 0.01% | −15,013−10.1% | Reduced |
| American International Group, Inc. | 135,090 | $8.58M | 0.04% | −6,644−4.7% | Reduced |
| Pinebridge Investments, L.P. | 137,567 | $8.74M | 0.08% | −12,147−8.1% | Reduced |
| New York State Teachers Retirement System | 138,338 | $8.79M | 0.02% | +9,393+7.3% | Added |
| State Board of Administration of Florida Retirement System | 141,784 | $9.01M | 0.02% | +390.0% | Added |
| Schonfeld Strategic Advisors LLC | 146,330 | $9.30M | 0.08% | +57,759+65.2% | Added |
| Alliancebernstein L.P. | 148,802 | $9.46M | 0.00% | +2,689+1.8% | Added |
| APG Asset Management N.V. | 164,616 | $9.47M | 0.02% | +17,400+11.8% | Added |
| Truist Financial Corp | 152,395 | $9.68M | 0.02% | −1,819−1.2% | Reduced |
| First Trust Advisors LP | 153,845 | $9.78M | 0.01% | +8,222+5.6% | Added |
| California State Teachers Retirement System | 154,602 | $9.82M | 0.01% | −5,670−3.5% | Reduced |
| Balyasny Asset Management LLC | 165,014 | $10.5M | 0.03% | +65,740+66.2% | Added |
| Teacher Retirement System of Texas | 165,602 | $10.5M | 0.07% | −8,293−4.8% | Reduced |
| Voloridge Investment Management, LLC | 167,908 | $10.7M | 0.04% | +72,140+75.3% | Added |
| Credit Suisse AG | 169,622 | $10.8M | 0.01% | −4,728−2.7% | Reduced |
| Schroder Investment Management Group | 171,346 | $10.9M | 0.01% | −24,427−12.5% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 173,200 | $11.0M | 0.12% | 00.0% | Unchanged |
| California Public Employees Retirement System | 173,572 | $11.0M | 0.01% | −6,196−3.4% | Reduced |
| Interval Partners, LP | 182,247 | $11.6M | 0.50% | +4,865+2.7% | Added |
| TD Asset Management Inc | 186,842 | $11.9M | 0.01% | +226+0.1% | Added |
| FMR LLC | 189,271 | $12.0M | 0.00% | −171,461−47.5% | Reduced |
| Man Group plc | 191,338 | $12.2M | 0.03% | – | – |
| Vestcor Inc | 191,396 | $12.2M | 0.41% | −520.0% | Reduced |
| PGGM Investments | 195,352 | $12.4M | 0.19% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 198,835 | $12.6M | 0.15% | −1,150−0.6% | Reduced |
| Deutsche Bank AG | 208,185 | $13.2M | 0.01% | +47,862+29.9% | Added |
| Leith Wheeler Investment Counsel Ltd. | 217,106 | $13.8M | 1.51% | −2,800−1.3% | Reduced |
| Renaissance Technologies LLC | 225,126 | $14.3M | 0.02% | −13,800−5.8% | Reduced |
| Caisse de Depot Et Placement du Quebec | 236,533 | $15.0M | 0.04% | +26,405+12.6% | Added |
| Goldman Sachs Group Inc | 242,121 | $15.4M | 0.00% | −126,424−34.3% | Reduced |
| Barclays PLC | 246,015 | $15.6M | 0.01% | −1,256−0.5% | Reduced |
| New York State Common Retirement Fund | 252,373 | $16.0M | 0.02% | −11,064−4.2% | Reduced |
| Two Sigma Investments, LP | 255,721 | $16.3M | 0.04% | +182,465+249.1% | Added |
| Thrivent Financial for Lutherans | 259,104 | $16.5M | 0.04% | +4,158+1.6% | Added |
| KBC Group NV | 259,810 | $16.5M | 0.06% | +33,357+14.7% | Added |
| Citigroup Inc | 259,996 | $16.5M | 0.02% | +39,280+17.8% | Added |
| Nuveen Asset Management, LLC | 272,616 | $17.3M | 0.01% | −13,775−4.8% | Reduced |
| Two Sigma Advisers, LP | 281,300 | $17.9M | 0.04% | +226,400+412.4% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 282,555 | $18.0M | 0.01% | −34,938−11.0% | Reduced |
| Retirement Systems of Alabama | 284,248 | $18.1M | 0.08% | +11,948+4.4% | Added |
| JLB & Associates Inc | 289,150 | $18.4M | 2.64% | +1,834+0.6% | Added |
| AQR Capital Management LLC | 304,712 | $19.4M | 0.04% | +9,222+3.1% | Added |
| American Capital Management Inc | 306,948 | $19.5M | 0.67% | −10,289−3.2% | Reduced |
| Rhumbline Advisers | 346,544 | $22.0M | 0.02% | +3,463+1.0% | Added |
| Amundi | 379,996 | $23.7M | 0.01% | +72,275+23.5% | Added |
| Principal Financial Group Inc | 376,149 | $23.9M | 0.02% | −5,100−1.3% | Reduced |
| Envestnet Asset Management Inc | 386,676 | $24.6M | 0.01% | +5,639+1.5% | Added |
| Ameriprise Financial Inc | 395,694 | $25.1M | 0.01% | −201,654−33.8% | Reduced |
| JPMorgan Chase & Co | 433,457 | $27.5M | 0.00% | +138,417+46.9% | Added |
| Acadian Asset Management LLC | 451,242 | $28.7M | 0.11% | −26,739−5.6% | Reduced |
| Qube Research & Technologies Ltd | 466,239 | $29.6M | 0.07% | +62,225+15.4% | Added |
| Raymond James & Associates | 477,486 | $30.3M | 0.02% | +2,650+0.6% | Added |
| Norges Bank | 506,076 | $32.2M | 0.01% | −124,552−19.8% | Reduced |
| ProShare Advisors LLC | 543,111 | $34.5M | 0.11% | −3,594−0.7% | Reduced |
| HSBC Holdings PLC | 551,474 | $35.0M | 0.03% | +4,212+0.8% | Added |
| UBS Asset Management Americas Inc | 567,937 | $36.1M | 0.01% | −130,691−18.7% | Reduced |
| Millennium Management LLC | 575,485 | $36.6M | 0.03% | +9,239+1.6% | Added |
| Royal Bank of Canada | 635,580 | $40.4M | 0.01% | −13,888−2.1% | Reduced |
| Charles Schwab Investment Management Inc | 655,418 | $41.7M | 0.01% | +12,453+1.9% | Added |
| Natixis Advisors, L.P. | 676,534 | $43.0M | 0.11% | −27,476−3.9% | Reduced |
| Brown Advisory Inc | 692,337 | $44.0M | 0.06% | +10,700+1.6% | Added |
| Legal & General Group Plc | 884,318 | $56.2M | 0.02% | −68,046−7.1% | Reduced |
| Tandem Investment Advisors, Inc. | 935,477 | $59.5M | 2.38% | −282,790−23.2% | Reduced |
| Northern Trust Corp | 1,045,181 | $66.4M | 0.01% | −98,596−8.6% | Reduced |
| Dimensional Fund Advisors LP | 1,164,902 | $74.0M | 0.02% | −12,869−1.1% | Reduced |
| Bank of New York Mellon Corp | 1,191,237 | $75.7M | 0.02% | +9,152+0.8% | Added |
| Boston Trust Walden Corp | 1,314,965 | $83.6M | 0.63% | +24,621+1.9% | Added |
| Invesco Ltd. | 1,350,464 | $85.8M | 0.02% | +224,805+20.0% | Added |
| Royce & Associates LP | 1,462,569 | $92.9M | 0.86% | +34,272+2.4% | Added |
| Great West Life Assurance Co | 1,534,305 | $96.9M | 0.21% | −44,669−2.8% | Reduced |
| Citadel Advisors LLC | 1,630,583 | $103.6M | 0.10% | +332,840+25.6% | Added |
| Geode Capital Management, LLC | 1,963,682 | $124.6M | 0.01% | +23,053+1.2% | Added |
| Bank of America Corp | 3,015,627 | $191.6M | 0.02% | −27,059−0.9% | Reduced |
| Beutel, Goodman & Co Ltd. | 4,019,979 | $255.5M | 1.35% | −16,395−0.4% | Reduced |
| Morgan Stanley | 5,941,081 | $377.6M | 0.03% | −7,577−0.1% | Reduced |
| State Street Corp | 5,951,891 | $380.9M | 0.02% | +155,520+2.7% | Added |
| Loomis Sayles & Co L P | 9,491,247 | $603.2M | 0.92% | −121,927−1.3% | Reduced |
| BlackRock Inc. | 11,162,736 | $709.4M | 0.02% | −197,206−1.7% | Reduced |
| Vanguard Group Inc | 11,888,519 | $755.5M | 0.02% | −94,942−0.8% | Reduced |
| Phase 2 Partners, LLC | 0 | $0 | 0.00% | −163,528−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −152,174−100.0% | Sold out |
| Azora Capital LP | 0 | $0 | 0.00% | −147,932−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −45,425−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −27,037−100.0% | Sold out |
| Redwood Investment Management, LLC | 0 | $0 | 0.00% | −26,357−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −21,975−100.0% | Sold out |
| Earnest Partners LLC | 0 | $0 | 0.00% | −15,405−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −13,682−100.0% | Sold out |