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.
Superinvestors holding SEG, Q2 2026
1 superinvestor reports holding Seaport Entertainment Group Inc. on Form 13F, worth $133.6M in total. Weight is Seaport Entertainment Group Inc.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Pershing SquareBill Ackman | 0.7% | 5,023,780 | $133.6M | Unchanged |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of SEG each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2025
1 superinvestor holding at quarter end
- Sold out
- Harris Associates (Oakmark)
Q1 2025
2 superinvestors holding at quarter end
- Reduced
- Harris Associates (Oakmark) (−36.5%)
Q4 2024
2 superinvestors holding at quarter end
- Added
- Pershing Square (+139.8%)
- Reduced
- Harris Associates (Oakmark) (−8.4%)
- Sold out
- Southeastern Asset Management (Longleaf)
Q3 2024
3 superinvestors holding at quarter end