NYSEConsumer DiscretionaryServices-Miscellaneous Amusement & RecreationNEW YORK, NY

Seaport Entertainment Group Inc. SEG

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Estimated market cap $263.16M12.84M shares, shares as of Nov 3, 2026CIK 2009684

Insider trades, 12 mo

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No open-market trades

Congress trades, 24 mo

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No disclosed trades

13F holders, Q3 2026

23.5% of shares · 23 added

13F holders

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Lobbying, 12 mo

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No lobbying filings

Federal contracts, 12 mo

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None matched

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Latest 10-Q

Q3 2026

What changed in Seaport Entertainment Group Inc.'s latest quarterly report, compared with the one before.

Filed Nov 4, 2026 · Quarter ended Sep 30, 2026

Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in Seaport Entertainment Group Inc.'s latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No recent insider purchases or sales for this company.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

3.02M shares

76 funds report SEG. Values checked against market prices.

Funds own 87% of shares (Q2 2026)

117 funds hold the stock.

Q3 2026: 24% · 5,560 of ~8,900 funds reported so far

Q2 202570%
Q3 202578%
Q4 202582%
Q1 202684%
Q2 202687%
Q3 2026 (so far)24%

Q3 2026. 5 new, 23 added to, 21 trimmed, 47 exited since Q2 2026.

Top 13F holders
#
1	BlackRock, Inc. 13F ↗	545,002	$12.5M	-1.5%
2	Vanguard Portfolio Management LLC 13F ↗	383,908	$8.8M	-0.1%
3	Dimensional Fund Advisors LP 13F ↗	352,278	$8.1M	-11.2%
4	Vanguard Capital Management LLC 13F ↗	346,974	$7.9M	+1.0%
5	Cerity Partners LLC 13F ↗	311,865	$7.1M	-1.0%
6	Geode Capital Management, LLC 13F ↗	203,853	$4.7M	-2.1%
7	State Street Corp 13F ↗	182,577	$4.2M	-1.8%
8	Peapod Lane Capital LLC 13F ↗	102,140	$2.3M	-7.0%
9	Quantinno Capital Management LP 13F ↗	57,655	$1.3M	+108.6%
10	Vanguard Fiduciary Trust Co 13F ↗	50,886	$1.2M	unchanged

Download CSV Every fund that holds SEG, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What Seaport Entertainment Group Inc. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Seaport Entertainment Group Inc. and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q3 2024	118	—	5.01M	$136.2M
Q4 2024	127	+9	9.61M	$268.7M
Q1 2025	120	-7	8.95M	$192.0M
Q2 2025	103	-17	8.86M	$165.3M
Q3 2025	102	-1	9.98M	$228.7M
Q4 2025	115	+13	10.39M	$205.6M
Q1 2026	118	+3	10.72M	$231.3M
Q2 2026	117	-1	11.13M	$296.0M
Q3 2026	76	-41	3.02M	$69.1M

Each point is a quarter-end, from Q3 2024 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (812215200). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q3 2024) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes2 in 12 mo 8-K events1 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesForm 144 · 1 in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Seaport Entertainment Group Inc.
Address: THE SEAPORT, 199 WATER STREET, 28TH FLOOR, NEW YORK, NY 10038
Phone: (212) 732-8257
Fiscal year ends: Dec 31
Filer category: emerging growth company
Incorporated in: DE
Listed as: SEG (NYSE)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$20.50−$0.15 (−0.73%) Nov 12 close

1M3M1Y

Oct 12, 2026Low $20.50 · High $23.52Nov 12, 2026

Aug 12, 2026Low $20.50 · High $29.13Nov 12, 2026

Nov 12, 2025Low $18.23 · High $29.23Nov 12, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.