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 |
|---|---|---|---|---|---|
| LPL Financial LLC | 52,766 | $1.13M | 0.00% | +16,672+46.2% | Added |
| Northern Trust Corp | 57,153 | $1.23M | 0.00% | +3,799+7.1% | Added |
| Charles Schwab Investment Management Inc | 62,006 | $1.33M | 0.00% | −1,972−3.1% | Reduced |
| Renaissance Technologies LLC | 82,300 | $1.77M | 0.00% | +45,500+123.6% | Added |
| Peapod Lane Capital LLC | 92,506 | $1.97M | 1.62% | +92,506 | New |
| Goldman Sachs Group Inc | 104,196 | $2.24M | 0.00% | +24,831+31.3% | Added |
| Rangeley Capital, LLC | 153,517 | $3.30M | 3.57% | 00.0% | Unchanged |
| State Street Corp | 177,981 | $3.82M | 0.00% | +981+0.6% | Added |
| Geode Capital Management, LLC | 185,020 | $3.98M | 0.00% | +6,263+3.5% | Added |
| Solas Capital Management, LLC | 222,918 | $4.79M | 2.75% | −4,660−2.0% | Reduced |
| Cerity Partners LLC | 318,919 | $6.85M | 0.01% | +61,697+24.0% | Added |
| Vanguard Capital Management LLC | 327,685 | $7.04M | 0.00% | +327,685 | New |
| Dimensional Fund Advisors LP | 455,147 | $9.78M | 0.00% | −64,751−12.5% | Reduced |
| BlackRock, Inc. | 505,629 | $10.9M | 0.00% | −8,406−1.6% | Reduced |
| Rubric Capital Management LP | 568,530 | $12.2M | 0.15% | 00.0% | Unchanged |
| Gate City Capital Management, LLC | 689,447 | $14.8M | 5.76% | +304,121+78.9% | Added |
| Kahn Brothers Group Inc | 893,227 | $19.2M | 3.40% | +307,057+52.4% | Added |
| Pershing Square Capital Management, L.P. | 5,023,780 | $107.9M | 0.79% | 00.0% | Unchanged |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −66,352−100.0% | Sold out |
| Phoenix Holdings Ltd. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −33,154−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −18,170−100.0% | Sold out |
| Global Strategic Management Inc | 0 | $0 | 0.00% | −17,300−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −12,951−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −12,643−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −11,563−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −7,884−100.0% | Sold out |
| Twin Lakes Capital Management, LLC | 0 | $0 | 0.00% | −611−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −489−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −234−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −129−100.0% | Sold out |
| Laurel Wealth Advisors LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Turning Point Benefit Group, Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |