SEG Institutional Ownership & Shareholders
SEAPORT ENTMT GROUP INC (SEG) is currently held by 115 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $402.32M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Pershing Square Inc. is currently the largest disclosed institutional shareholder of SEG tracked by InsiderSet, reporting ownership valued at approximately $133.63M in its June 30, 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 $114.64M, representing an estimated loss of -14.21% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 88% of the total disclosed SEG value among the investors covered in this analysis. Major shareholders include Pershing Square Inc., Pershing Square Capital Management, Kahn Brothers Group, 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.
Institutional Holders
115
Total Reported Value
$402.32M
Largest Holder
Pershing Square Inc.
Largest Position
$133.63M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
148
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Pershing Square Inc. | 0.69% | 5,023,780 | $133,632,548 | $114,642,660 | -$18,989,888 | -14.21% | |
| Pershing Square Capital Management | Bill Ackman | 0.79% | 5,023,780 | $107,910,794 | $114,642,660 | +$6,731,866 | +6.24% |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 3.86% | 917,005 | $24,392,333 | $20,926,054 | -$3,466,279 | -14.21% |
| Gate City Capital Management, Llc | 4.99% | 723,248 | $19,238,397 | $16,504,519 | -$2,733,878 | -14.21% | |
| Rubric Capital Management Lp | 0.14% | 568,530 | $15,122,898 | $12,973,855 | -$2,149,043 | -14.21% | |
| Blackrock, Inc. | 0.00% | 553,120 | $14,712,993 | $12,622,198 | -$2,090,795 | -14.21% | |
| Dimensional Fund Advisors Lp | 0.00% | 396,566 | $10,548,825 | $9,049,636 | -$1,499,189 | -14.21% | |
| Vanguard Portfolio Management Llc | 0.00% | 384,200 | $10,219,720 | $8,767,444 | -$1,452,276 | -14.21% | |
| Vanguard Capital Management Llc | 0.00% | 343,549 | $9,138,403 | $7,839,788 | -$1,298,615 | -14.21% | |
| Cerity Partners Llc | 0.01% | 314,955 | $8,377,803 | $7,187,273 | -$1,190,530 | -14.21% | |
| Solas Capital Management, Llc | 3.03% | 212,892 | $5,662,927 | $4,858,195 | -$804,732 | -14.21% | |
| Geode Capital Management, Llc | 0.00% | 208,136 | $5,537,574 | $4,749,664 | -$787,910 | -14.23% | |
| State Street Corp | 0.00% | 185,838 | $4,943,291 | $4,240,823 | -$702,468 | -14.21% | |
| Rangeley Capital, Llc | 3.80% | 153,517 | $4,083,552 | $3,503,258 | -$580,294 | -14.21% | |
| Goldman Sachs Group Inc | 0.00% | 117,344 | $3,121,351 | $2,677,790 | -$443,561 | -14.21% | |
| Peapod Lane Capital Llc | 1.74% | 102,140 | $2,337,985 | $2,330,835 | -$7,150 | -0.31% | |
| Charles Schwab Investment Management Inc | 0.00% | 63,587 | $1,691,414 | $1,451,055 | -$240,359 | -14.21% | |
| Northern Trust Corp | 0.00% | 60,461 | $1,608,262 | $1,379,720 | -$228,542 | -14.21% | |
| Lpl Financial Llc | 0.00% | 51,711 | $1,375,513 | $1,180,045 | -$195,468 | -14.21% | |
| Aqr Capital Management Llc | 0.00% | 51,134 | $1,360,176 | $1,166,878 | -$193,298 | -14.21% | |
| Vanguard Fiduciary Trust Co | 0.00% | 50,880 | $1,353,408 | $1,161,082 | -$192,326 | -14.21% | |
| O'Keefe Stevens Advisory, Inc. | 0.25% | 53,869 | $1,233,061 | $1,229,291 | -$3,770 | -0.31% | |
| Horizon Kinetics Asset Management Llc | 0.01% | 42,503 | $1,130,580 | $969,918 | -$160,662 | -14.21% | |
| Trexquant Investment Lp | 0.01% | 34,171 | $908,949 | $779,782 | -$129,167 | -14.21% | |
| Price T Rowe Associates Inc | 0.00% | 31,663 | $843,000 | $722,550 | -$120,450 | -14.29% | |
| Gem Investment Advisors, Llc | 0.46% | 28,012 | $745,119 | $639,234 | -$105,885 | -14.21% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 27,999 | $744,773 | $638,937 | -$105,836 | -14.21% |
| Quantinno Capital Management Lp | 0.00% | 27,643 | $735,304 | $630,813 | -$104,491 | -14.21% | |
| Morgan Stanley | 0.00% | 27,027 | $718,925 | $616,756 | -$102,169 | -14.21% | |
| Bank Of New York Mellon Corp | 0.00% | 22,604 | $601,266 | $515,823 | -$85,443 | -14.21% | |
| Ingalls & Snyder Llc | 0.02% | 22,102 | $588,000 | $504,368 | -$83,632 | -14.22% | |
| Ubs Group Ag | 0.00% | 22,079 | $587,301 | $503,843 | -$83,458 | -14.21% | |
| Xtx Topco Ltd | 0.01% | 20,312 | $540,299 | $463,520 | -$76,779 | -14.21% | |
| Commerce Bank | 0.00% | 17,557 | $467,016 | $400,651 | -$66,365 | -14.21% | |
| Bridgeway Capital Management, Llc | 0.01% | 16,785 | $446,481 | $383,034 | -$63,447 | -14.21% | |
| State Of New Jersey Common Pension Fund D | 0.00% | 15,891 | $422,701 | $362,633 | -$60,068 | -14.21% | |
| Principal Financial Group Inc | 0.00% | 18,261 | $417,988 | $416,716 | -$1,272 | -0.30% | |
| American Century Companies Inc | 0.00% | 15,180 | $403,788 | $346,408 | -$57,380 | -14.21% | |
| Lazard Asset Management Llc | 0.00% | 14,624 | $388,998 | $333,720 | -$55,278 | -14.21% | |
| Tidal Investments Llc | 0.00% | 14,247 | $378,970 | $325,117 | -$53,853 | -14.21% | |
| Nuveen, Llc | 0.00% | 13,815 | $367,479 | $315,258 | -$52,221 | -14.21% | |
| Moran Wealth Management, Llc | 0.01% | 15,094 | $345,502 | $344,445 | -$1,057 | -0.31% | |
| Deutsche Bank Ag\ | 0.00% | 11,061 | $294,223 | $252,412 | -$41,811 | -14.21% | |
| Gabelli Funds Llc | 0.00% | 9,182 | $244,241 | $209,533 | -$34,708 | -14.21% | |
| Invesco Ltd. | 0.00% | 9,133 | $242,938 | $208,415 | -$34,523 | -14.21% | |
| Bank Of America Corp | 0.00% | 8,933 | $237,618 | $203,851 | -$33,767 | -14.21% | |
| Empirical Asset Management, Llc | 0.05% | 8,600 | $228,760 | $196,252 | -$32,508 | -14.21% | |
| Rhumbline Advisers | 0.00% | 8,246 | $219,333 | $188,174 | -$31,159 | -14.21% | |
| Quinn Opportunity Partners Llc | 0.01% | 8,016 | $213,226 | $182,925 | -$30,301 | -14.21% | |
| Wells Fargo & Company/Mn | 0.00% | 6,520 | $173,432 | $148,786 | -$24,646 | -14.21% |
Frequently asked questions about SEG
Who are the largest institutional holders of SEG?
The largest institutional holders of SEG reported in the latest SEC Form 13F filings include Pershing Square Inc., Pershing Square Capital Management, Kahn Brothers Group, Gate City Capital Management, Llc, and Rubric Capital Management Lp. InsiderSet ranks institutional holders by their latest reported SEG position.
What is SEG institutional ownership?
This page tracks SEG positions reported by institutional investment managers through SEC Form 13F. SEAPORT ENTMT GROUP INC (SEG) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SEG?
InsiderSet currently tracks 115 institutional managers reporting SEG holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SEG shareholders.
How much SEG stock do institutions own?
Institutional investment managers disclosed approximately $402.32M in SEG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SEG institutional ownership last updated?
The latest SEG institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 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 institutional holdings.
Are institutional SEG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SEG position after the reporting date.
Are institutions buying or selling SEG?
Institutional 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 has SEG institutional ownership changed over time?
InsiderSet tracks SEG institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.