13F reference period
Q2 2026
Security Snapshot
Seaport Entertainment Group Inc. - Common Stock (SEG) Institutional Ownership
CUSIP: 812215200
13F Institutional Holders and Ownership History from Q3 2024 to Q3 2026
Institutions Reporting
115
Shares (Excl. Options)
11.13M
Full value: 11,128,326 · shares · 30 Jun 2026Price
$26.60
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Common Stock
- Symbol
- SEG on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 11,128,326
- Total 13F value
- $296,016,665
- Portfolio coverage rank
- 0%
- Share change
- +5,436,896
- Value change
- +$145,120,786
- Number of holders
- 115
- Shares outstanding
- 12,767,537
- SEC-reported price per share
- $22.89
- Insider filing price
- $22.89
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- SEG - Seaport Entertainment Group Inc. - Common Stock is tracked under CUSIP 812215200.
- 115 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 116 to 115 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$230.21M
Full value: $230,214,511 · USD · 31 Mar 2026.$296.02M
Full value: $296,016,665 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 115 institutions filings for Q2 2026.
Security key
812215200
13F reference period
Q2 2026
13F holders
115
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
SEG full holder history
Seaport Entertainment Group Inc. SEC filings
Seaport Entertainment Group Inc. company facts
Seaport Entertainment Group Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 812215200:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
SEG
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| KAHN BROTHERS GROUP INC | 7% | $19,838,572 | 893,227 | KAHN BROTHERS GROUP INC | 08 May 2026 | |||
| GATE CITY CAPITAL MANAGEMENT, LLC | 5.4% | $15,312,618 | 689,447 | Gate City Capital Management, LLC | 31 Mar 2026 | |||
| Rubric Capital Management LP | 4.5% | $11,118,381 | 573,408 | Rubric Capital Management LP | 31 Dec 2024 | |||
| Beryl Capital Management LLC | 2.7% | $6,527,217 | 336,628 | Beryl Capital Management LLC | 31 Dec 2024 | |||
| BlackRock, Inc. | 2.6% | $6,326,879 | 326,296 | BlackRock, Inc. | 31 Dec 2024 |
As of 30 Jun 2026,
115
institutional investors reported holding
shares of
Seaport Entertainment Group Inc. - Common Stock (SEG).
This represents
87%
of the company’s total
outstanding shares.
11.13M
Full value: 11,128,326 · shares · 30 Jun 202612.77M
Full value: 12,767,537 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
84%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PERSHING SQUARE INC. | 39% | 5,023,780 | 0.69% | $133,632,548 | |
| KAHN BROTHERS GROUP INC | 7.2% | 917,005 | +2.7% | 3.9% | $24,392,333 |
| GATE CITY CAPITAL MANAGEMENT, LLC | 5.7% | 723,248 | +4.9% | 5% | $19,238,397 |
| Rubric Capital Management LP | 4.5% | 568,530 | 0% | 0.14% | $15,122,898 |
| BlackRock, Inc. | 4.3% | 553,120 | +9.4% | 0% | $14,712,993 |
| DIMENSIONAL FUND ADVISORS LP | 3.1% | 396,566 | -13% | 0% | $10,548,825 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3% | 384,200 | +792% | 0% | $10,219,720 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.7% | 343,549 | +4.8% | 0% | $9,138,403 |
| Cerity Partners LLC | 2.5% | 314,955 | -1.2% | 0.01% | $8,377,803 |
| Solas Capital Management, LLC | 1.7% | 212,892 | -4.5% | 3% | $5,662,927 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6% | 208,136 | +12% | 0% | $5,537,574 |
| STATE STREET CORP | 1.5% | 185,838 | +4.4% | 0% | $4,943,291 |
| Rangeley Capital, LLC | 1.2% | 153,517 | 0% | 4% | $4,083,552 |
| GOLDMAN SACHS GROUP INC | 0.92% | 117,344 | +13% | 0% | $3,121,351 |
| Peapod Lane Capital LLC | 0.86% | 109,851 | +19% | 2% | $2,922,037 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.5% | 63,587 | +2.5% | 0% | $1,691,414 |
| NORTHERN TRUST CORP | 0.47% | 60,461 | +5.8% | 0% | $1,608,262 |
| LPL Financial LLC | 0.41% | 51,711 | -2% | 0% | $1,375,513 |
| AQR CAPITAL MANAGEMENT LLC | 0.4% | 51,134 | +120% | 0% | $1,360,176 |
| VANGUARD FIDUCIARY TRUST CO | 0.4% | 50,880 | +5.4% | 0% | $1,353,408 |
| O'Keefe Stevens Advisory, Inc. | 0.38% | 49,085 | +3% | 0.27% | $1,305,661 |
| HORIZON KINETICS ASSET MANAGEMENT LLC | 0.33% | 42,503 | -19% | 0.01% | $1,130,580 |
| Trexquant Investment LP | 0.27% | 34,171 | +94% | 0.01% | $908,949 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 0.25% | 31,663 | +23% | 0% | $843,000 |
| Gem Investment Advisors, LLC | 0.22% | 28,012 | -5.8% | 0.46% | $745,119 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
9
Headline period
Q2 2026
Rows shown
1-9 of 9
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 173,884 | $3,980,205 | -$747,619 | $22.89 | 18 |
| 2026 Q2 | 11,128,326 | $296,016,665 | +$145,120,786 | $26.60 | 115 |
| 2026 Q1 | 10,718,450 | $230,214,511 | +$9,160,189 | $21.48 | 116 |
| 2025 Q4 | 10,388,592 | $205,620,897 | +$7,398,793 | $19.77 | 112 |
| 2025 Q3 | 9,909,150 | $227,119,371 | +$24,961,266 | $22.92 | 99 |
| 2025 Q2 | 8,849,340 | $165,114,567 | -$2,296,937 | $18.65 | 100 |
| 2025 Q1 | 8,934,543 | $191,750,000 | -$18,617,325 | $21.47 | 119 |
| 2024 Q4 | 9,614,168 | $268,653,405 | +$127,098,218 | $27.95 | 124 |
| 2024 Q3 | 4,906,532 | $134,536,957 | +$130,283,123 | $27.42 | 115 |