Who owns SEI
356 institutions reported holding SEI for 2026Q1, more than the 330 a quarter earlier.
356
Institutions reporting a position · as of 2026Q1 · up from 330 the quarter before
- Shares held by institutions
- 64.8M
Shares held by institutions · long US equity positions only, as reported on Form 13F
- Reported value
- $3.66B
Reported value · at 2026-03-31 prices, not today's
- Opened vs closed
- 84 / 63
Opened vs closed · new positions against positions exited in the latest quarter
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 36
- New positions
- 84
- Positions exited
- 63
- Added to
- 118
- Reduced
- 106
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 356 | 64.8M | $3.66B |
| 2025Q4 | 330 | 67.3M | $3.09B |
| 2025Q3 | 269 | 55.3M | $2.21B |
| 2025Q2 | 208 | 47.8M | $1.35B |
| 2025Q1 | 197 | 40.8M | $888M |
| 2024Q4 | 178 | 35.1M | $1.01B |
| 2024Q3 | 134 | 23.9M | $305M |
| 2024Q2 | 128 | 23.6M | $202M |
| 2024Q1 | 132 | 24.8M | $215M |
| 2023Q4 | 140 | 24.1M | $192M |
| 2023Q3 | 118 | 21.6M | $230M |
| 2023Q2 | 99 | 21.9M | $182M |
| 2023Q1 | 116 | 23.0M | $196M |
| 2022Q4 | 127 | 24.1M | $240M |
| 2022Q3 | 127 | 24.0M | $225M |
| 2022Q2 | 132 | 24.5M | $267M |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Inc. | 4.1M | n/a | $233M |
| VANGUARD GROUP INC | 3.0M | n/a | $172M |
| MILLENNIUM MANAGEMENT LLC | 2.3M | n/a | $129M |
| VAN ECK ASSOCIATES CORP | 2.0M | n/a | $110M |
| TWO SIGMA INVESTMENTS, LP | 1.9M | n/a | $110M |
| FMR LLC | 1.9M | n/a | $105M |
| Encompass Capital Advisors LLC | 1.8M | n/a | $99M |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 1.7M | n/a | $98M |
| MORGAN STANLEY | 1.7M | n/a | $96M |
| Driehaus Capital Management LLC | 1.6M | n/a | $92M |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
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