Security Snapshot

Seaport Entertainment Group Inc. - Common Stock (SEG) Institutional Ownership

CUSIP: 812215200

13F Institutional Holders and Ownership History from Q3 2024 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

115

Shares (Excl. Options)

11,128,575

Price

$26.60

Save this security page for your next review

Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.

Create free account and return here Sign in and return here Review latest holder period
Security type / class
Equity / Common Stock
Symbol
SEG on NYSE
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
11,128,575
Latest holder snapshot 5 signals
Total 13F value
$296,023,287
Portfolio coverage rank
0%
Share change
+5,437,548
Value change
+$145,138,126
Number of holders
115
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
12,767,537
SEC-reported price per share
$25.90
Insider filing price
$25.90
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

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 $230,214,511 to $296,023,287.

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

Latest holder context comes from 115 institutions filings for Q2 2026.

Open SEC evidence

Security key

812215200

Latest holder 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

Latest 13F filings Latest 13D/G filings All securities

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 11,128,575 shares of Seaport Entertainment Group Inc. - Common Stock (SEG). This represents 87% of the company’s total 12,767,537 outstanding shares.

13F 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
8
Latest
Q2 2026
Rows shown
1-8 of 8
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 11,128,575 $296,023,287 +$145,138,126 $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
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .