SEAPORT ENTMT GROUP INC SEG
COMMON STOCK · Common Stock · CUSIP 812215200 · ISIN US8122152007
- SectorConsumer discretionary
- IndustryServices-Miscellaneous Amusement & Recreation
- HeadquartersNew York, NY
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($32.9k this quarter). Holder counts are more reliable. Shares outstanding: 12.8m as of 2026-08-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $26.60. Options: 2 managers hold calls ($393.7k notional), 1 hold puts ($356.4k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2024 | 119 |
| Q4 2024 | 128 |
| Q1 2025 | 123 |
| Q2 2025 | 104 |
| Q3 2025 | 101 |
| Q4 2025 | 113 |
| Q1 2026 | 118 |
| Q2 2026 | 117 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2024 | 71 | 41 |
| Q1 2025 | 44 | 64 |
| Q2 2025 | 50 | 69 |
| Q3 2025 | 37 | 52 |
| Q4 2025 | 41 | 49 |
| Q1 2026 | 54 | 49 |
| Q2 2026 | 52 | 36 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $494.2k | $587.1k | 1.19 |
| Q4 2025 | $4.0k | $94.6k | 23.93 |
| Q1 2026 | $242.7k | $227.7k | 0.94 |
| Q2 2026 | $393.7k | $356.4k | 0.91 |
Biggest buyers
| PERSHING SQUARE INC. | New | +5.0m |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +341.1k |
| BlackRock, Inc. | Added | +47.5k |
| GATE CITY CAPITAL MANAGEMENT, LLC | Added | +33.8k |
| AQR CAPITAL MANAGEMENT LLC | Added | +27.9k |
| KAHN BROTHERS GROUP INC | Added | +23.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +23.1k |
| Peapod Lane Capital LLC | Added | +17.3k |
| Trexquant Investment LP | Added | +16.6k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +15.9k |
Biggest sellers
| Focus Partners Wealth | Sold out | -59.6k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -58.6k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -54.3k |
| LAZARD ASSET MANAGEMENT LLC | Reduced | -32.8k |
| Marnell Management LLC | Sold out | -32.3k |
| CITADEL ADVISORS LLC | Sold out | -25.8k |
| ArrowMark Colorado Holdings LLC | Sold out | -18.4k |
| Solas Capital Management, LLC | Reduced | -10.0k |
| HORIZON KINETICS ASSET MANAGEMENT LLC | Reduced | -9.9k |
| Odyssean, LLC | Sold out | -9.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $367.1k13.8k shares |
| SIMPLEX TRADING, LLC | Added | $26.6k1.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $356.4k13.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| KAHN BROTHERS GROUP INC 13G · institution new · filed 2026-05-08 | 7.0% |
| GATE CITY CAPITAL MANAGEMENT, LLC 13G · institution new · filed 2026-05-15 | 5.4% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| PERSHING SQUARE INC. 0.69% of their portfolio | 5.0m $133.6m | New |
| KAHN BROTHERS GROUP INC 3.86% of their portfolio | 917.0k $24.4m | Added +23.8k |
| GATE CITY CAPITAL MANAGEMENT, LLC 4.99% of their portfolio | 723.2k $19.2m | Added +33.8k |
| Rubric Capital Management LP 0.14% of their portfolio | 568.5k $15.1m | Unchanged |
| BlackRock, Inc. 0.00% of their portfolio | 553.1k $14.7m | Added +47.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 396.6k $10.5m | Reduced -58.6k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 384.2k $10.2m | Added +341.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 343.5k $9.1m | Added +15.9k |
| Cerity Partners LLC 0.01% of their portfolio | 315.0k $8.4m | Reduced -4.0k |
| Solas Capital Management, LLC 3.03% of their portfolio | 212.9k $5.7m | Reduced -10.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 208.1k $5.5m | Added +23.1k |
| STATE STREET CORP 0.00% of their portfolio | 185.8k $4.9m | Added +7.9k |
| Rangeley Capital, LLC 3.80% of their portfolio | 153.5k $4.1m | Unchanged |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 117.3k $3.1m | Added +13.1k |
| Peapod Lane Capital LLC 1.97% of their portfolio | 109.9k $2.9m | Added +17.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 63.6k $1.7m | Added +1.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 60.5k $1.6m | Added +3.3k |
| LPL Financial LLC 0.00% of their portfolio | 51.7k $1.4m | Reduced -1.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 51.1k $1.4m | Added +27.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 50.9k $1.4m | Added +2.6k |
| O'Keefe Stevens Advisory, Inc. 0.27% of their portfolio | 49.1k $1.3m | Added +1.4k |
| HORIZON KINETICS ASSET MANAGEMENT LLC 0.01% of their portfolio | 42.5k $1.1m | Reduced -9.9k |
| Trexquant Investment LP 0.01% of their portfolio | 34.2k $908.9k | Added +16.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 31.7k $843.0k | Added +6.0k |
| Gem Investment Advisors, LLC 0.46% of their portfolio | 28.0k $745.1k | Reduced -1.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 28.0k $744.8k | Reduced -54.3k |
| Quantinno Capital Management LP 0.00% of their portfolio | 27.6k $735.3k | Added +3.5k |
| MORGAN STANLEY 0.00% of their portfolio | 27.0k $718.9k | Added +11.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 22.6k $601.3k | Added +2.1k |
| INGALLS & SNYDER LLC 0.02% of their portfolio | 22.1k $588.0k | Reduced -32 |
| UBS Group AG 0.00% of their portfolio | 22.1k $587.3k | Reduced -2.4k |
| XTX Topco Ltd 0.01% of their portfolio | 20.3k $540.3k | Added +833 |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 18.2k $484.8k | Reduced -184 |
| COMMERCE BANK 0.00% of their portfolio | 17.6k $467.0k | Unchanged |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 16.8k $446.5k | Unchanged |
| State of New Jersey Common Pension Fund D 0.00% of their portfolio | 15.9k $422.7k | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 15.2k $403.8k | Added +4.5k |
| Marquette Asset Management, LLC 0.05% of their portfolio | 14.7k $392.3k | New |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 14.6k $389.0k | Reduced -32.8k |
| Moran Wealth Management, LLC 0.01% of their portfolio | 14.3k $381.2k | Added +3.4k |
| Tidal Investments LLC 0.00% of their portfolio | 14.2k $379.0k | Reduced -1.6k |
| Nuveen, LLC 0.00% of their portfolio | 13.8k $367.5k | Unchanged |
| CITIZENS FINANCIAL GROUP INC/RI 0.00% of their portfolio | 11.7k $310.2k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 11.1k $294.2k | Added +2.6k |
| GABELLI FUNDS LLC 0.00% of their portfolio | 9.2k $244.2k | New |
| Invesco Ltd. 0.00% of their portfolio | 9.1k $242.9k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 8.9k $237.6k | New |
| Empirical Asset Management, LLC 0.05% of their portfolio | 8.6k $228.8k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 8.2k $219.3k | Added +2.5k |
| Quinn Opportunity Partners LLC 0.01% of their portfolio | 8.0k $213.2k | New |
| INDEPENDENT INVESTORS INC 0.04% of their portfolio | 7.6k $201.7k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 6.5k $173.4k | Added +3.5k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 5.0k $131.8k | Unchanged |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 4.1k $108.9k | Added +3.4k |
| CITIGROUP INC 0.00% of their portfolio | 3.7k $97.9k | Added +3.2k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 3.5k $92.9k | Reduced -96 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 3.2k $85.6k | Reduced -2.2k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 3.0k $79.6k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 1.7k $46.2k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 1.5k $39.2k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 1.5k $38.7k | Unchanged |
| STRS OHIO 0.00% of their portfolio | 1.4k $37.2k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 1.3k $34.6k | Reduced -418 |
| BARCLAYS PLC 0.00% of their portfolio | 1.2k $32.5k | Reduced -267 |
| Hilltop National Bank 0.01% of their portfolio | 1.0k $26.9k | Unchanged |
| FMR LLC 0.00% of their portfolio | 933 $24.8k | Added +11 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 929 $24.0k | Added +713 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 762 $20.3k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 709 $18.9k | Reduced -491 |
| Legal & General Group Plc 0.00% of their portfolio | 675 $18.0k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 468 $12.4k | Reduced -856 |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 353 $9.4k | New |
| Versant Capital Management, Inc 0.00% of their portfolio | 334 $8.9k | Unchanged |
| Cullen/Frost Bankers, Inc. 0.00% of their portfolio | 207 $5.5k | Unchanged |
| ASSETMARK, INC 0.00% of their portfolio | 160 $4.3k | Added +80 |
| Sterling Capital Management LLC 0.00% of their portfolio | 153 $4.1k | Reduced -94 |
| MONTAG A & ASSOCIATES INC 0.00% of their portfolio | 133 $3.5k | Unchanged |
| Allworth Financial LP 0.00% of their portfolio | 119 $3.2k | Added +95 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 104 $2.8k | Reduced -299 |
| Quent Capital, LLC 0.00% of their portfolio | 92 $2.4k | Reduced -580 |
| GAMMA Investing LLC 0.00% of their portfolio | 87 $2.3k | Reduced -18 |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 74 $2.0k | Unchanged |
| NATIXIS 0.00% of their portfolio | 64 $1.6k | Unchanged |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 61 $1.6k | Added +27 |
| Leonteq Securities AG 0.00% of their portfolio | 44 $1.2k | Unchanged |
| Essential Partners LLC 0.00% of their portfolio | 41 $1.1k | Reduced -245 |
| Costello Asset Management, INC 0.00% of their portfolio | 36 $958 | Unchanged |
| Lummis Asset Management, LP 0.00% of their portfolio | 36 $958 | Unchanged |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 33 $878 | Added +25 |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 31 $825 | Reduced -13 |
| Global Retirement Partners, LLC 0.00% of their portfolio | 31 $825 | First filing |
| IFP Advisors, Inc 0.00% of their portfolio | 29 $771 | Added +25 |
| McMillan Office, Inc. 0.00% of their portfolio | 28 $745 | Unchanged |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 27 $718 | Added +25 |
| Smartleaf Asset Management LLC 0.00% of their portfolio | 16 $435 | Unchanged |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 14 $372 | Unchanged |
| North Star Investment Management Corp. 0.00% of their portfolio | 13 $346 | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 10 $265 | Added +2 |
| Ancora Advisors LLC 0.00% of their portfolio | 9 $239 | Unchanged |
| True Wealth Design, LLC 0.00% of their portfolio | 9 $240 | Added +1 |