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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.

Key figures

Market capClose on Nov 11, 2026
$265.1M
Insider buysOpen market, last 90 days
0
Insider sellsOpen market, last 90 days
0
13F holdersQ2 2026, +2 vs. previous quarter
116
13F valueReported value at the end of Q2 2026
$296.0M
Superinvestors holdingAt the end of Q2 2026
1

Price chart

From SEC filings, in USD.

Revenue, FY2025
$130.4M
+17.3% year over year
Net income, FY2025
-$116.7M
No comparable prior period
Free cash flow, FY2025
–
No comparable prior period
Revenue, Q3 FY2026
$32.7M
−27.4% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Net loss for FY2025: $116.7M (89.5% of revenue).

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest
631.6K
Shares sold short
Change
−14.3K
−2.2% vs. previous
Days to cover
12.32
At average daily volume

Superinvestors holding SEG, Q2 2026

Go to the superinvestors tab

1 superinvestor reports holding Seaport Entertainment Group Inc. on Form 13F. Percentages are the stock's share of each portfolio.

Pershing Square

Bill Ackman

0.7%

Seaport Entertainment Group Inc.'s share of the portfolio

Shares
5,023,780
Value
$133.6M

Latest insider trades

See all insider trades

Open-market purchases and sales by Seaport Entertainment Group Inc. insiders from Form 4, newest first.

No open-market purchases or sales by Seaport Entertainment Group Inc. insiders are on file.

Top 10 13F holders, Q2 2026

See all 116 holders

The largest institutional positions in Seaport Entertainment Group Inc. at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding SEG in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Pershing Square Inc.SuperinvestorPershing Square5,023,780$133.6M0.69%+5,023,780New
Kahn Brothers Group Inc917,005$24.4M3.86%+23,778+2.7%Added
Gate City Capital Management, LLC723,248$19.2M4.99%+33,801+4.9%Added
Rubric Capital Management LP568,530$15.1M0.14%00.0%Unchanged
BlackRock, Inc.553,120$14.7M0.00%+47,491+9.4%Added
Dimensional Fund Advisors LP396,566$10.5M0.00%−58,581−12.9%Reduced
Vanguard Portfolio Management LLC384,200$10.2M0.00%+341,138+792.2%Added
Vanguard Capital Management LLC343,549$9.14M0.00%+15,864+4.8%Added
Cerity Partners LLC314,955$8.38M0.01%−3,964−1.2%Reduced
Solas Capital Management, LLC212,892$5.66M3.03%−10,026−4.5%Reduced

Holders of 5% or more of SEG

See all 2 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Seaport Entertainment Group Inc..

Largest holders of SEG from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
Kahn Brothers Group Inc13G7.00%893.2K sharesNewMay 8, 20261 filingMay 8, 2026SEC
Gate City Capital Management, LLC13G5.40%689.4K sharesNewMay 15, 20261 filingMay 15, 2026SEC