Seaport Entertainment Group Inc. (SEG)
Who owns Seaport Entertainment Group Inc. (SEG)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 57.8% of the shares are freely tradable; institutional investors hold 84.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Pershing Square Capital Management, L.P. | 39.24 | 5,023,780 | +0.0 | 03/31/2026 |
| Kahn Brothers & CO Inc /DE/ | 6.98 | 893,227 | +52.4 | 03/31/2026 |
| Gate City Capital Management, LLC | 5.39 | 689,447 | +78.9 | 03/31/2026 |
| Rubric Capital Management LP | 4.44 | 568,530 | +0.0 | 03/31/2026 |
| BlackRock Inc | 3.95 | 505,629 | -1.6 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.56 | 455,147 | -12.5 | 03/31/2026 |
| Vanguard Group Inc | 3.55 | 454,191 | -1.4 | 12/31/2025 |
| Vanguard Capital Management, LLC | 2.56 | 327,685 | +0.0 | 03/31/2026 |
| HPM Partners LLC | 2.49 | 318,919 | +24.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.82 | 232,882 | +0.0 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.