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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +2 vs. previous quarter
- 116
- 13F valueReported value at the end of Q2 2026
- $296.0M
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding SEG, Q2 2026
1 superinvestor reports holding Seaport Entertainment Group Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Pershing Square
Bill Ackman
0.7%
Seaport Entertainment Group Inc.'s share of the portfolio
- Shares
- 5,023,780
- Value
- $133.6M
Latest insider trades
Open-market purchases and sales by Seaport Entertainment Group Inc. insiders from Form 4, newest first.
No open-market purchases or sales by Seaport Entertainment Group Inc. insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Seaport Entertainment Group Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pershing Square Inc.SuperinvestorPershing Square | 5,023,780 | $133.6M | 0.69% | +5,023,780 | New |
| Kahn Brothers Group Inc | 917,005 | $24.4M | 3.86% | +23,778+2.7% | Added |
| Gate City Capital Management, LLC | 723,248 | $19.2M | 4.99% | +33,801+4.9% | Added |
| Rubric Capital Management LP | 568,530 | $15.1M | 0.14% | 00.0% | Unchanged |
| BlackRock, Inc. | 553,120 | $14.7M | 0.00% | +47,491+9.4% | Added |
| Dimensional Fund Advisors LP | 396,566 | $10.5M | 0.00% | −58,581−12.9% | Reduced |
| Vanguard Portfolio Management LLC | 384,200 | $10.2M | 0.00% | +341,138+792.2% | Added |
| Vanguard Capital Management LLC | 343,549 | $9.14M | 0.00% | +15,864+4.8% | Added |
| Cerity Partners LLC | 314,955 | $8.38M | 0.01% | −3,964−1.2% | Reduced |
| Solas Capital Management, LLC | 212,892 | $5.66M | 3.03% | −10,026−4.5% | Reduced |