Sei Investments CompanySEIC
13F holders, Q3 2024 (September 30)501holders +8
45new positions
33sold out
10famous investors
$69.21avg. 13F price*
At the end of Q3 2024, 501 institutions reported holding Sei Investments Company (SEIC) in their 13F filings, up 8 from Q2 2024. 45 opened new positions and 33 sold out. The largest holders were Vanguard Group Inc. ($802.0M), BlackRock, Inc. ($789.5M) and Loomis Sayles & Co. L P ($632.9M). 10 famous investors held it, including Tom Gayner (0.1% of Markel Group's portfolio), Ken Griffin (0.1% of Citadel Advisors's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Sei Investments Company
- CUSIP
- 784117103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 45 | $30.0M |
| Exits | 33 | $94.0M |
All 13F filers, Q2 2024 → Q3 2024: 4,342,769 shares bought and 5,533,106 shares sold, net −1,190,337 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 501 holders
| Vanguard Group Inc. | 0.01% | Reduce -2.1% | 11,590,784 | $802.0M |
| BlackRock, Inc. | 0.02% | — | 11,410,088 | $789.5M |
| Loomis Sayles & Co. L P | 0.83% | Reduce -3.1% | 9,147,929 | $632.9M |
| Morgan Stanley | 0.03% | Reduce -1.6% | 5,849,723 | $404.7M |
| State Street Corp. | 0.02% | Reduce -6.6% | 5,708,002 | $394.9M |
| Beutel, Goodman & Co Ltd. | 1.37% | Reduce -1.0% | 4,014,909 | $277.8M |
| Bank of America Corp. | 0.02% | Reduce -0.1% | 3,033,857 | $209.9M |
| Invesco Ltd. | 0.03% | Add +6.8% | 2,557,040 | $176.9M |
| Geode Capital Management, LLC | 0.01% | Add +13.6% | 2,520,430 | $174.1M |
| Dimensional Fund Advisors LP | 0.03% | Add +18.5% | 1,635,791 | $113.2M |
| Royce & Associates LP | 0.92% | Add +0.1% | 1,465,406 | $101.4M |
| Boston Trust Walden Corp | 0.62% | Reduce -0.8% | 1,286,309 | $89.0M |
| Citadel Advisors | 0.09% | Add +33.2% | 1,216,039 | $84.1M |
| Bank of New York Mellon Corp | 0.01% | Reduce -5.2% | 1,125,318 | $77.9M |
| First Trust Advisors LP | 0.06% | Add +6.1% | 951,178 | $65.8M |
| FMR LLC | 0.00% | Add +249.7% | 885,113 | $61.2M |
| Northern Trust Corp. | 0.01% | Reduce -12.2% | 883,842 | $61.2M |
| Brown Advisory Inc. | 0.07% | Reduce -4.2% | 805,755 | $55.8M |
| Natixis Advisors, LLC | 0.09% | Reduce -0.1% | 674,270 | $46.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -0.5% | 664,366 | $46.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +2.0% | 546,187 | $37.8M |
| Raymond James & Associates | 0.02% | Add +3.8% | 544,477 | $37.7M |
| Voloridge Investment Management, LLC | 0.13% | Add +29.3% | 509,036 | $35.2M |
| JPMorgan Chase & Co. | 0.00% | Add +13.6% | 507,916 | $35.1M |
| ProShare Advisors LLC | 0.08% | Add +4.1% | 484,109 | $33.5M |
| AQR Capital Management | 0.04% | Add +15.8% | 425,242 | $29.4M |
| Millennium Management | 0.03% | Add +113.1% | 409,927 | $28.4M |
| HSBC Holdings PLC | 0.02% | Add +16.0% | 402,649 | $27.8M |
| Envestnet Asset Management Inc. | 0.01% | Add +3.5% | 394,793 | $27.3M |
| Qube Research & Technologies Ltd | 0.05% | Add +158.8% | 391,932 | $27.1M |
| Legal & General Group Plc | 0.01% | Reduce -56.1% | 384,717 | $26.6M |
| Ameriprise Financial Inc. | 0.01% | Reduce -5.6% | 382,224 | $26.4M |
| KBC Group NV | 0.08% | Reduce -5.7% | 365,808 | $25.3M |
| Royal Bank of Canada | 0.01% | Reduce -4.2% | 346,593 | $24.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +31.5% | 344,326 | $23.8M |
| Deutsche Bank AG | 0.01% | Reduce -3.8% | 341,112 | $23.6M |
| Rhumbline Advisers | 0.02% | Reduce -1.6% | 339,411 | $23.5M |
| Franklin Resources Inc. | 0.01% | Add +17.8% | 320,482 | $22.8M |
| American Capital Management Inc. | 0.69% | Add +0.0% | 304,386 | $21.1M |
| JLB & Associates Inc. | 2.57% | Add +0.9% | 288,524 | $20.0M |
| Retirement Systems of Alabama | 0.07% | Reduce -1.2% | 278,914 | $19.3M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +31.5% | 272,701 | $18.9M |
| Amundi | 0.01% | Add +1.6% | 264,743 | $18.5M |
| Caisse de depot et placement du Quebec | 0.04% | Reduce -38.3% | 255,084 | $17.6M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -1.4% | 253,223 | $17.5M |
| Interval Partners, LP | 0.48% | Add +20.5% | 241,242 | $16.7M |
| Principal Financial Group Inc. | 0.01% | Reduce -30.4% | 238,228 | $16.5M |
| New York State Common Retirement Fund | 0.02% | Reduce -4.1% | 234,754 | $16.2M |
| Acadian Asset Management LLC | 0.05% | Reduce -35.6% | 229,318 | $15.9M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -17.5% | 224,084 | $15.5M |
| American Century Companies Inc. | 0.01% | Reduce -30.4% | 216,710 | $15.0M |
| Alps Advisors Inc. | 0.10% | Add +37.5% | 215,499 | $14.9M |
| Thrivent Financial for Lutherans | 0.03% | Add +0.3% | 210,704 | $14.6M |
| Leith Wheeler Investment Counsel Ltd. | 1.02% | Reduce -3.9% | 210,482 | $14.6M |
| State of Alaska, Department of Revenue | 0.15% | Add +0.4% | 199,610 | $13.8M |
| Danske Bank A/S | 0.05% | Add +23.0% | 198,494 | $13.7M |
| Korea Investment CORP | 0.03% | Add +29.9% | 197,284 | $13.7M |
| Prana Capital Management, LP | 0.62% | Add +10.9% | 196,816 | $13.6M |
| Man Group plc | 0.04% | Reduce -13.3% | 196,009 | $13.6M |
| Renaissance Technologies | 0.02% | Reduce -2.6% | 191,326 | $13.2M |
| Vestcor Inc | 0.41% | No change | 188,149 | $13.0M |
| Citigroup Inc. | 0.01% | Reduce -7.5% | 182,649 | $12.6M |
| TD Asset Management Inc | 0.01% | Reduce -5.7% | 179,030 | $12.4M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.03% | Reduce -13.7% | 174,253 | $12.1M |
| Markel Group | 0.11% | No change | 173,200 | $12.0M |
| Bank of Nova Scotia | 0.02% | Add +176.5% | 169,415 | $11.7M |
| California Public Employees Retirement System | 0.01% | Add +2.1% | 167,595 | $11.6M |
| Barclays PLC | 0.01% | Reduce -8.9% | 166,012 | $11.5M |
| Allianz Asset Management GmbH | 0.02% | Add +8.2% | 162,325 | $11.2M |
| Victory Capital Management Inc. | 0.01% | Add +0.6% | 161,248 | $11.2M |
| Two Sigma Investments, LP | 0.03% | Add +68.9% | 156,677 | $10.8M |
| Andra AP-fonden | 0.16% | Add +14.7% | 155,800 | $10.8M |
| Teacher Retirement System of Texas | 0.05% | Reduce -8.1% | 153,048 | $10.6M |
| Bank of Montreal | 0.00% | Add +19.7% | 149,659 | $10.4M |
| Balyasny Asset Management L.P. | 0.03% | Reduce -32.2% | 148,799 | $10.3M |
| UBS Group AG | 0.00% | Add +5.4% | 143,835 | $10.0M |
| Pinebridge Investments, L.P. | 0.07% | Add +42.1% | 142,531 | $9.9M |
| State Board of Administration of Florida Retirement System | 0.02% | No change | 141,784 | $9.8M |
| California State Teachers Retirement System | 0.01% | Reduce -5.7% | 137,867 | $9.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -8.0% | 137,013 | $9.5M |
| Mitsubishi UFJ Trust & Banking Corp | 0.02% | Reduce -16.1% | 130,223 | $9.0M |
| New York State Teachers Retirement System | 0.02% | Reduce -4.7% | 125,908 | $8.7M |
| Truist Financial Corp. | 0.01% | Reduce -14.2% | 121,039 | $8.4M |
| Osaic Holdings, Inc. | 0.02% | Add +0.4% | 120,919 | $8.4M |
| Foyston, Gordon & Payne Inc | 2.07% | Add +48.0% | 121,503 | $8.3M |
| West Coast Financial LLC | 0.89% | Add +1.1% | 117,382 | $8.1M |
| Corebridge Financial, Inc. | 0.04% | Reduce -7.6% | 116,749 | $8.1M |
| Norges Bank | 0.00% | Reduce -20.7% | 113,852 | $7.9M |
| Achmea Investment Management B.V. | 0.13% | Add +9.6% | 112,900 | $7.8M |
| Verition Fund Management LLC | 0.06% | Add +2766.3% | 111,098 | $7.7M |
| Crestwood Advisors Group, LLC | 0.14% | Add +0.6% | 109,393 | $7.6M |
| CANADA LIFE ASSURANCE Co | 0.01% | Add +3.9% | 104,258 | $7.2M |
| Cubist Systematic Strategies, LLC | 0.11% | New | 104,192 | $7.2M |
| Martingale Asset Management L P | 0.16% | Reduce -3.8% | 102,665 | $7.1M |
| Abn Amro Investment Solutions | 0.12% | Reduce -0.3% | 102,570 | $7.1M |
| Van Eck Associates Corp. | 0.01% | Add +72.3% | 94,605 | $6.7M |
| State of Wisconsin Investment Board | 0.02% | Add +12.8% | 94,956 | $6.6M |
| BNP Paribas Financial Markets | 0.01% | Add +99.1% | 90,902 | $6.3M |
| Hahn Capital Management LLC | 3.87% | Reduce -1.5% | 86,919 | $6.0M |
| Modera Wealth Management, LLC | 0.08% | Reduce -2.4% | 85,750 | $5.9M |
"% of holder's portfolio" is SEIC's weight in each manager's 13F, not the share of Sei Investments Company the manager owns.