Seaport Entmt Group (SEG) Held by Superinvestors
SEAPORT ENTMT GROUP INC (SEG) is currently held by 3 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $133.05M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.
Pershing Square Capital Management is currently the largest disclosed institutional shareholder of SEG tracked by InsiderSet, reporting ownership valued at approximately $107.91M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $113.94M, representing an estimated gain of +5.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed SEG value among the investors covered in this analysis. Major shareholders include Pershing Square Capital Management, Kahn Brothers Group, Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in SEAPORT ENTMT GROUP INC (SEG).
This page ranks the largest institutional SEG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Pershing Square Capital Management | Bill Ackman | 0.79% | 5,023,780 | $107,910,794 | $113,939,330 | +$6,028,536 | +5.59% |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 3.86% | 917,005 | $24,392,333 | $20,797,673 | -$3,594,660 | -14.74% |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 27,999 | $744,773 | $635,017 | -$109,756 | -14.74% |
Frequently asked questions about SEG
Who are the largest superinvestors holding SEG?
The largest superinvestors holding SEG in the latest SEC Form 13F filings include Pershing Square Capital Management, Kahn Brothers Group, and Renaissance Technologies LLC. InsiderSet ranks these superinvestors by their latest reported SEG position.
What does the SEG superinvestors page include?
This page tracks SEG positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. SEAPORT ENTMT GROUP INC (SEG) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold SEG?
InsiderSet currently tracks 3 superinvestors reporting SEG holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own SEG.
How much SEG stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $133.05M in SEG holdings for Q1 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were SEG superinvestor holdings last updated?
The latest SEG superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended March 31, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor SEG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its SEG position after the reporting date.
Are superinvestors buying or selling SEG?
Buying and selling can be analyzed by comparing SEG positions across consecutive 13F reporting periods. InsiderSet's SEG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SEG ownership changes.
How have superinvestor SEG holdings changed over time?
InsiderSet tracks SEG holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.