Seaport Entertainment Group Inc.
SEG- Exchange
- NYSE
- Industry
- Services-Miscellaneous Amusement & Recreation
- SEC CIK
- 0002009684
No open-market purchases or sales by Seaport Entertainment Group Inc. insiders were filed in the last 90 days; 116 institutions reported holding it in 13F filings for Q2 2026, worth $296.0M in total; Pershing Square is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Seaport Entertainment Group Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 118
- +8 vs. Q4 2025
- Shares held
- 10.7M
- +784.9K (+7.9%) vs. Q4 2025
- Total value
- $231.3M
- +$34.7M (+17.6%) vs. Q4 2025
- New holders
- 25
- 32 more added
- Sold out
- 17
- 33 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SEG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 116 | $296.0M |
| Q1 2026 | 118 | $231.3M |
| Q4 2025 | 113 | $205.6M |
| Q3 2025 | 101 | $227.1M |
| Q2 2025 | 103 | $165.1M |
| Q1 2025 | 121 | $192.0M |
| Q4 2024 | 127 | $268.7M |
| Q3 2024 | 118 | $134.7M |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Seaport Entertainment Group Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pershing Square Capital Management, L.P. | 5,023,780 | $107.9M | 0.79% | 00.0% | Unchanged |
| Kahn Brothers Group Inc | 893,227 | $19.2M | 3.40% | +307,057+52.4% | Added |
| Gate City Capital Management, LLC | 689,447 | $14.8M | 5.76% | +304,121+78.9% | Added |
| Rubric Capital Management LP | 568,530 | $12.2M | 0.15% | 00.0% | Unchanged |
| BlackRock, Inc. | 505,629 | $10.9M | 0.00% | −8,406−1.6% | Reduced |
| Dimensional Fund Advisors LP | 455,147 | $9.78M | 0.00% | −64,751−12.5% | Reduced |
| Vanguard Capital Management LLC | 327,685 | $7.04M | 0.00% | +327,685 | New |
| Cerity Partners LLC | 318,919 | $6.85M | 0.01% | +61,697+24.0% | Added |
| Solas Capital Management, LLC | 222,918 | $4.79M | 2.75% | −4,660−2.0% | Reduced |
| Geode Capital Management, LLC | 185,020 | $3.98M | 0.00% | +6,263+3.5% | Added |
| State Street Corp | 177,981 | $3.82M | 0.00% | +981+0.6% | Added |
| Rangeley Capital, LLC | 153,517 | $3.30M | 3.57% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 104,196 | $2.24M | 0.00% | +24,831+31.3% | Added |
| Peapod Lane Capital LLC | 92,506 | $1.97M | 1.62% | +92,506 | New |
| Renaissance Technologies LLC | 82,300 | $1.77M | 0.00% | +45,500+123.6% | Added |
| Charles Schwab Investment Management Inc | 62,006 | $1.33M | 0.00% | −1,972−3.1% | Reduced |
| Northern Trust Corp | 57,153 | $1.23M | 0.00% | +3,799+7.1% | Added |
| LPL Financial LLC | 52,766 | $1.13M | 0.00% | +16,672+46.2% | Added |
| Horizon Kinetics Asset Management LLC | 52,440 | $1.13M | 0.01% | −82−0.2% | Reduced |
| Colony Group, LLC | 596 | $1.09M | 0.00% | −49,482−98.8% | Reduced |
| Vanguard Fiduciary Trust Co | 48,264 | $1.04M | 0.00% | +48,264 | New |
| O'Keefe Stevens Advisory, Inc. | 47,670 | $1.02M | 0.25% | +33,499+236.4% | Added |
| Lazard Asset Management LLC | 47,468 | $1.02M | 0.00% | +846+1.8% | Added |
| Vanguard Portfolio Management LLC | 43,062 | $925.0K | 0.00% | +43,062 | New |
| Marnell Management LLC | 32,300 | $693.8K | 0.46% | 00.0% | Unchanged |
| Gem Investment Advisors, LLC | 29,738 | $638.8K | 0.63% | −8,710−22.7% | Reduced |
| Citadel Advisors LLC | 25,800 | $554.2K | 0.00% | −54,140−67.7% | Reduced |
| Price T Rowe Associates Inc | 25,651 | $551.0K | 0.00% | +3,341+15.0% | Added |
| UBS Group AG | 24,460 | $525.4K | 0.00% | −97,471−79.9% | Reduced |
| Quantinno Capital Management LP | 24,141 | $518.5K | 0.00% | +1,235+5.4% | Added |
| AQR Capital Management LLC | 23,230 | $499.0K | 0.00% | +23,230 | New |
| Ingalls & Snyder LLC | 22,134 | $475.0K | 0.02% | +147+0.7% | Added |
| Bank of New York Mellon Corp | 20,516 | $440.7K | 0.00% | −1,640−7.4% | Reduced |
| XTX Topco Ltd | 19,479 | $418.4K | 0.01% | +9,171+89.0% | Added |
| Principal Financial Group Inc | 18,410 | $395.4K | 0.00% | −13−0.1% | Reduced |
| ArrowMark Colorado Holdings LLC | 18,406 | $395.4K | 0.01% | −121−0.7% | Reduced |
| Trexquant Investment LP | 17,570 | $377.4K | 0.00% | +17,570 | New |
| Commerce Bank | 17,557 | $377.1K | 0.00% | −80.0% | Reduced |
| Bridgeway Capital Management, LLC | 16,785 | $360.5K | 0.01% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 15,891 | $341.3K | 0.00% | 00.0% | Unchanged |
| Toroso Investments, LLC | 15,851 | $340.5K | 0.00% | −293−1.8% | Reduced |
| Morgan Stanley | 15,534 | $333.7K | 0.00% | −10,571−40.5% | Reduced |
| Nuveen, LLC | 13,815 | $296.7K | 0.00% | +62+0.5% | Added |
| Citizens Financial Group Inc | 11,660 | $250.5K | 0.00% | +11,660 | New |
| Moran Wealth Management, LLC | 10,935 | $234.9K | 0.01% | +10,935 | New |
| American Century Companies Inc | 10,644 | $228.6K | 0.00% | −52−0.5% | Reduced |
| Odyssean, LLC | 9,723 | $208.8K | 0.08% | +9,723 | New |
| Deutsche Bank AG | 8,420 | $180.9K | 0.00% | −2,578−23.4% | Reduced |
| Byrne Asset Management LLC | 6,320 | $135.8K | 0.08% | +6,320 | New |
| Rhumbline Advisers | 5,770 | $123.9K | 0.00% | −321−5.3% | Reduced |
| JPMorgan Chase & Co | 5,354 | $112.3K | 0.00% | +53+1.0% | Added |
| Aquatic Capital Management LLC | 5,216 | $112.0K | 0.00% | +3,288+170.5% | Added |
| MetLife Investment Management | 4,956 | $106.5K | 0.00% | −62−1.2% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 3,589 | $77.1K | 0.00% | +90+2.6% | Added |
| Vanguard Global Advisers, LLC | 2,993 | $64.3K | 0.00% | +2,993 | New |
| Wells Fargo & Company | 2,988 | $64.2K | 0.00% | −6,049−66.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 1,737 | $37.3K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,718 | $36.9K | 0.00% | −76−4.2% | Reduced |
| CWM, LLC | 1,592 | $34.2K | 0.00% | +1,344+541.9% | Added |
| Barclays PLC | 1,487 | $31.9K | 0.00% | −10,179−87.3% | Reduced |
| New York State Common Retirement Fund | 1,454 | $31.2K | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 1,400 | $30.1K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,324 | $28.4K | 0.00% | +597+82.1% | Added |
| MSRH, LLC | 1,254 | $26.9K | 0.02% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,200 | $25.8K | 0.00% | +1,091+1,000.9% | Added |
| Hilltop National Bank | 1,013 | $21.8K | 0.01% | 00.0% | Unchanged |
| FMR LLC | 922 | $19.8K | 0.00% | −225−19.6% | Reduced |
| Ameritas Investment Partners, Inc. | 762 | $16.4K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 678 | $14.6K | 0.00% | −28,531−97.7% | Reduced |
| Legal & General Group Plc | 675 | $14.5K | 0.00% | 00.0% | Unchanged |
| Quent Capital, LLC | 672 | $14.4K | 0.00% | +554+469.5% | Added |
| Citigroup Inc | 525 | $11.3K | 0.00% | +177+50.9% | Added |
| California State Teachers Retirement System | 403 | $8.66K | 0.00% | −54−11.8% | Reduced |
| Versant Capital Management, Inc | 334 | $7.17K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 286 | $6.14K | 0.00% | +284+14,200.0% | Added |
| Sterling Capital Management LLC | 247 | $5.31K | 0.00% | −183−42.6% | Reduced |
| Royal Bank of Canada | 216 | $5.00K | 0.00% | −497−69.7% | Reduced |
| Cullen/Frost Bankers, Inc. | 207 | $4.45K | 0.00% | 00.0% | Unchanged |
| Montag A & Associates Inc | 133 | $2.86K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 105 | $2.25K | 0.00% | +47+81.0% | Added |
| Assetmark, Inc | 80 | $1.72K | 0.00% | +80 | New |
| Jones Financial Companies LLLP | 74 | $1.54K | 0.00% | +49+196.0% | Added |
| Natixis | 64 | $1.31K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 44 | $946 | 0.00% | +15+51.7% | Added |
| Leonteq Securities AG | 44 | $945 | 0.00% | +44 | New |
| Costello Asset Management, INC | 36 | $773 | 0.00% | 00.0% | Unchanged |
| Lummis Asset Management, LP | 36 | $773 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 34 | $730 | 0.00% | +24+240.0% | Added |
| McMillan Office, Inc. | 28 | $601 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 24 | $516 | 0.00% | +24 | New |
| Bayban | 20 | $430 | 0.00% | +20 | New |
| Greykasell Wealth Strategies, Inc. | 18 | $376 | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 16 | $336 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 14 | $301 | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 13 | $279 | 0.00% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 9 | $193 | 0.00% | −53,482−100.0% | Reduced |
| Root Financial Partners, LLC | 9 | $193 | 0.00% | +9 | New |
| True Wealth Design, LLC | 8 | $172 | 0.00% | +1+14.3% | Added |
| Rothschild Investment LLC | 8 | $172 | 0.00% | +8 | New |
| Advisor Group Holdings, Inc. | 8 | $171 | 0.00% | −3−27.3% | Reduced |