---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-018624"
form_type: "8-K"
ticker: "SEG"
cik: "0002009684"
company_name: "Seaport Entertainment Group Inc."
filed_at: "2026-02-23T23:59:59+00:00"
generated_at: "2026-05-16T01:16:43.251898+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# SEG announces Balloon Museum as new Tin Building tenant; Tin Building by Jean-Georges closes

## Summary
- Balloon Museum will open U.S. flagship at Tin Building in Summer 2026 under 5-year lease with two 5-year renewal options.
- Tin Building by Jean-Georges operations closed effective Feb 23, 2026; License Agreement with JG terminated.
- SEG retains 25% minority stake in Jean-Georges Restaurants; partnership continues.
- Balloon Museum exhibition will feature new commissioned works by internationally renowned artists.

## SEC filing metadata
- accession: 0001104659-26-018624
- form_type: 8-K
- ticker: SEG
- cik: 0002009684
- company_name: Seaport Entertainment Group Inc.
- filed_at: 2026-02-23T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2009684/000110465926018624/0001104659-26-018624-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2009684/000110465926018624/seg-20260223x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-018624
- JSON: https://secwatch.observer/filing/0001104659-26-018624.json
- Plain text: https://secwatch.observer/filing/0001104659-26-018624.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.