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.
Q2 2026 vs. Q1 2026
How the institutions holding Seaport Entertainment Group Inc. changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 118 | 4 | 116 | +2 |
| Shares | 10.7M | 5.03M | 11.1M | +5.44M (+95.5%) |
| Value | $231.3M | $108.0M | $296.0M | +$172.7M (+140.0%) |
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (14)
Institutions that held Seaport Entertainment Group Inc. at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Pershing Square Inc.SuperinvestorPershing Square | 5,023,780 | $133.6M | 0.69% |
| Marquette Asset Management, LLC | 14,749 | $392.3K | 0.05% |
| Gabelli Funds LLC | 9,182 | $244.2K | 0.00% |
| Invesco Ltd. | 9,133 | $242.9K | 0.00% |
| Bank of America Corp | 8,933 | $237.6K | 0.00% |
| Empirical Asset Management, LLC | 8,600 | $228.8K | 0.05% |
| Quinn Opportunity Partners LLC | 8,016 | $213.2K | 0.01% |
| Independent Investors Inc | 7,584 | $201.7K | 0.04% |
| SRS Capital Advisors, Inc. | 1,472 | $39.2K | 0.00% |
| Global Retirement Partners, LLC | 31 | $825 | 0.00% |
| Clearstead Advisors, LLC | 5 | $134 | 0.00% |
| Fortitude Family Office, LLC | 5 | $133 | 0.00% |
| Action Point Financial Planning, LLC | 4 | $106 | 0.00% |
| Ameriflex Group, Inc. | 1 | $27 | 0.00% |
Sold out (12)
Institutions that held Seaport Entertainment Group Inc. at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Colony Group, LLC | 596 | $1.09M |
| Marnell Management LLC | 32,300 | $693.8K |
| Citadel Advisors LLC | 25,800 | $554.2K |
| ArrowMark Colorado Holdings LLC | 18,406 | $395.4K |
| Odyssean, LLC | 9,723 | $208.8K |
| Byrne Asset Management LLC | 6,320 | $135.8K |
| Aquatic Capital Management LLC | 5,216 | $112.0K |
| Bayban | 20 | $430 |
| Greykasell Wealth Strategies, Inc. | 18 | $376 |
| Root Financial Partners, LLC | 9 | $193 |
| MAI Capital Management | 7 | $151 |
| Advisory Services Network, LLC | 5 | $107 |
Not filed for Q2 2026 yet (4)
Institutions that held Seaport Entertainment Group Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Pershing Square Capital Management, L.P. | 5,023,780 | $107.9M |
| CWM, LLC | 1,592 | $34.2K |
| MSRH, LLC | 1,254 | $26.9K |
| Sunbelt Securities, Inc. | 7 | $150 |