SEAPORT ENTMT GROUP INC (SEG) Institutional Shareholders
SEAPORT ENTMT GROUP INC (SEG) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $232.90M in SEG holdings during the latest filing period.
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 $133.48M, representing an estimated gain of +23.70% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 85% of the total disclosed SEG value among the investors covered in this analysis. Major shareholders include Pershing Square Capital Management, Kahn Brothers Group, Gate City Capital Management, 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.
Institutional Holders
113
Total Reported Value
$232.90M
Largest Holder
Pershing Square Capital Management
Largest Position
$107.91M
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
138
Funds Exiting Positions
0
| 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 | $133,481,835 | +$25,571,041 | +23.70% |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 3.40% | 893,227 | $19,186,515 | $23,733,041 | +$4,546,526 | +23.70% |
| Gate City Capital Management, Llc | 5.76% | 689,447 | $14,809,322 | $18,318,607 | +$3,509,285 | +23.70% | |
| Rubric Capital Management Lp | 0.15% | 568,530 | $12,212,024 | $15,105,842 | +$2,893,818 | +23.70% | |
| Blackrock, Inc. | 0.00% | 505,629 | $10,860,910 | $13,434,563 | +$2,573,653 | +23.70% | |
| Dimensional Fund Advisors Lp | 0.00% | 455,147 | $9,776,403 | $12,093,256 | +$2,316,853 | +23.70% | |
| Vanguard Capital Management Llc | 0.00% | 327,685 | $7,038,674 | $8,706,590 | +$1,667,916 | +23.70% | |
| Cerity Partners Llc | 0.01% | 318,919 | $6,850,380 | $8,473,678 | +$1,623,298 | +23.70% | |
| Solas Capital Management, Llc | 2.75% | 222,918 | $4,788,279 | $5,922,931 | +$1,134,652 | +23.70% | |
| Geode Capital Management, Llc | 0.00% | 185,020 | $3,975,103 | $4,915,981 | +$940,878 | +23.67% | |
| State Street Corp | 0.00% | 177,981 | $3,823,032 | $4,728,955 | +$905,923 | +23.70% | |
| Rangeley Capital, Llc | 3.56% | 153,517 | $3,297,545 | $4,078,947 | +$781,402 | +23.70% | |
| Peapod Lane Capital Llc | 1.97% | 109,851 | $2,922,037 | $2,918,741 | -$3,296 | -0.11% | |
| Goldman Sachs Group Inc | 0.00% | 104,196 | $2,238,130 | $2,768,488 | +$530,358 | +23.70% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 82,300 | $1,767,804 | $2,186,711 | +$418,907 | +23.70% |
| Gem Investment Advisors, Llc | 0.68% | 68,186 | $1,398,889 | $1,811,702 | +$412,813 | +29.51% | |
| Charles Schwab Investment Management Inc | 0.00% | 62,006 | $1,331,889 | $1,647,499 | +$315,610 | +23.70% | |
| O'Keefe Stevens Advisory, Inc. | 0.27% | 49,085 | $1,305,661 | $1,304,188 | -$1,473 | -0.11% | |
| Northern Trust Corp | 0.00% | 57,153 | $1,227,646 | $1,518,555 | +$290,909 | +23.70% | |
| Lpl Financial Llc | 0.00% | 52,766 | $1,133,414 | $1,401,993 | +$268,579 | +23.70% | |
| Horizon Kinetics Asset Management Llc | 0.01% | 52,440 | $1,126,411 | $1,393,331 | +$266,920 | +23.70% | |
| Focus Partners Wealth | 0.00% | 596 | $1,086,802 | $15,836 | -$1,070,966 | -98.54% | |
| Vanguard Fiduciary Trust Co | 0.00% | 48,264 | $1,036,711 | $1,282,374 | +$245,663 | +23.70% | |
| Lazard Asset Management Llc | 0.00% | 47,468 | $1,019,613 | $1,261,225 | +$241,612 | +23.70% | |
| Vanguard Portfolio Management Llc | 0.00% | 43,062 | $924,972 | $1,144,157 | +$219,185 | +23.70% | |
| Marnell Management Llc | 0.46% | 32,300 | $693,804 | $858,211 | +$164,407 | +23.70% | |
| Citadel Advisors Llc | 0.00% | 25,800 | $554,184 | $685,506 | +$131,322 | +23.70% | |
| Ubs Group Ag | 0.00% | 24,460 | $525,401 | $649,902 | +$124,501 | +23.70% | |
| Quantinno Capital Management Lp | 0.00% | 24,141 | $518,549 | $641,426 | +$122,877 | +23.70% | |
| Aqr Capital Management Llc | 0.00% | 23,230 | $498,988 | $617,221 | +$118,233 | +23.69% | |
| Principal Financial Group Inc | 0.00% | 18,226 | $484,804 | $484,265 | -$539 | -0.11% | |
| Bank Of New York Mellon Corp | 0.00% | 20,516 | $440,683 | $545,110 | +$104,427 | +23.70% | |
| State Of New Jersey Common Pension Fund D | 0.00% | 15,891 | $422,701 | $422,224 | -$477 | -0.11% | |
| Xtx Topco Ltd | 0.01% | 19,479 | $418,409 | $517,557 | +$99,148 | +23.70% | |
| Arrowmark Colorado Holdings Llc | 0.01% | 18,406 | $395,361 | $489,047 | +$93,686 | +23.70% | |
| Marquette Asset Management, Llc | 0.05% | 14,749 | $392,324 | $391,881 | -$443 | -0.11% | |
| Trexquant Investment Lp | 0.00% | 17,570 | $377,404 | $466,835 | +$89,431 | +23.70% | |
| Commerce Bank | 0.00% | 17,557 | $377,124 | $466,489 | +$89,365 | +23.70% | |
| Bridgeway Capital Management, Llc | 0.01% | 16,785 | $360,542 | $445,977 | +$85,435 | +23.70% | |
| Tidal Investments Llc | 0.00% | 15,851 | $340,479 | $421,161 | +$80,682 | +23.70% | |
| Morgan Stanley | 0.00% | 15,534 | $333,674 | $412,738 | +$79,064 | +23.70% | |
| Nuveen, Llc | 0.00% | 13,815 | $296,746 | $367,065 | +$70,319 | +23.70% | |
| Citizens Financial Group Inc/Ri | 0.00% | 11,660 | $250,457 | $309,806 | +$59,349 | +23.70% | |
| Moran Wealth Management, Llc | 0.01% | 10,935 | $234,884 | $290,543 | +$55,659 | +23.70% | |
| American Century Companies Inc | 0.00% | 10,644 | $228,633 | $282,811 | +$54,178 | +23.70% | |
| Odyssean, Llc | 0.08% | 9,723 | $208,850 | $258,340 | +$49,490 | +23.70% | |
| Independent Investors Inc | 0.04% | 7,584 | $201,734 | $201,507 | -$227 | -0.11% | |
| Deutsche Bank Ag\ | 0.00% | 8,420 | $180,861 | $223,719 | +$42,858 | +23.70% | |
| Rhumbline Advisers | 0.00% | 5,770 | $123,927 | $153,309 | +$29,382 | +23.71% | |
| Aquatic Capital Management Llc | 0.00% | 5,216 | $112,040 | $138,589 | +$26,549 | +23.70% |
Frequently asked questions about SEG
Who owns the most SEG stock?
The largest holders of SEG are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SEAPORT ENTMT GROUP INC (SEG).
Is SEG widely held by superinvestors?
Many widely followed stocks like SEG appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SEG is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.