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.
Holders of 5% or more of SEG
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Seaport Entertainment Group Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Kahn Brothers Group Inc | 13G | 7.00%893.2K shares | New | May 8, 20261 filing | May 8, 2026 | SEC |
| Gate City Capital Management, LLC | 13G | 5.40%689.4K shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
5 Schedule 13D and 13G filings on Seaport Entertainment Group Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20264:05 PM ET | Gate City Capital Management, LLCand 1 other | 13G | 5.40%689.4K shares | New | Mar 31, 2026 | SEC |
| May 8, 202612:35 PM ET | Kahn Brothers Group Inc | 13G | 7.00%893.2K shares | New | May 8, 2026 | SEC |
| Feb 13, 20254:41 PM ET | Beryl Capital Management LLCand 3 others | 13G/A | 2.70%336.6K shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 13, 20254:01 PM ET | Rubric Capital Management LPand 1 other | 13G/A | 4.51%573.4K shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 3, 20255:42 PM ET | BlackRock, Inc. | 13G/A | 2.60%326.3K shares | –Below 5% | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Seaport Entertainment Group Inc. shares.
No Form 144 notices for Seaport Entertainment Group Inc. are on file.