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 2024
Institutional positions in SEI Investments Co as of Mar 31, 2024. 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
- 475
- −10 vs. Q4 2023
- Shares held
- 94.2M
- +1.49M (+1.6%) vs. Q4 2023
- Total value
- $6.77B
- +$876.6M (+14.9%) vs. Q4 2023
- New holders
- 47
- 141 more added
- Sold out
- 57
- 185 more reduced
6 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding SEI Investments Co; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −6,066−100.0% | Sold out |
| Maverick Capital LtdSuperinvestorMaverick Capital | 0 | $0 | 0.00% | −5,963−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −5,943−100.0% | Sold out |
| Prudential PLC | 0 | $0 | 0.00% | −5,924−100.0% | Sold out |
| Grant/GrossMendelsohn, LLC | 0 | $0 | 0.00% | −5,700−100.0% | Sold out |
| Machina Capital S.A.S. | 0 | $0 | 0.00% | −5,669−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −5,329−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −5,034−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −4,174−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −3,955−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −3,910−100.0% | Sold out |
| Sequoia Financial Advisors, LLC | 0 | $0 | 0.00% | −3,607−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −3,368−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −3,273−100.0% | Sold out |
| Kapitalo Investimentos Ltda | 0 | $0 | 0.00% | −3,265−100.0% | Sold out |
| Systematic Portfolios LLC | 0 | $0 | 0.00% | −3,198−100.0% | Sold out |
| Dividend Assets Capital, LLC | 0 | $0 | 0.00% | −1,450−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −790−100.0% | Sold out |
| Umb Bank N A | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −436−100.0% | Sold out |
| West Tower Group, LLC | 0 | $0 | 0.00% | −303−100.0% | Sold out |
| Banque Cantonale Vaudoise | 0 | $0 | 0.00% | −156−100.0% | Sold out |
| Investors Research Corp | 0 | $0 | 0.00% | −121−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −96−100.0% | Sold out |
| Tradition Wealth Management, LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| MCF Advisors LLC | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Benjamin F. Edwards & Company, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Gradient Investments LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Glassman Wealth Services | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Kayne Anderson Rudnick Investment Management LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Johnson Financial Group, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Putnam Investments LLC | – | – | – | – | Not filed |
| Desjardins Global Asset Management Inc. | – | – | – | – | Not filed |
| Neo Ivy Capital Management | – | – | – | – | Not filed |
| Fairfield Financial Advisors, LTD | – | – | – | – | Not filed |
| Bartlett & Co. LLC | – | – | – | – | Not filed |
| Baystate Wealth Management LLC | – | – | – | – | Not filed |