Ackman Retains Stake in Seaport Entertainment
Pershing Square retains its stake in Seaport Entertainment Group Inc. (NYSE:SEG) as of Q4 2025, holding 5.02 million shares worth over $99 million, representing 0.64% of Bill Ackman's portfolio and 40% of institutional ownership. The stock is up more than 15% year-to-date through March 5, 2026; on February 23, 2026 the company announced plans to open a Tin Building Balloon Museum with Lux Entertainment in summer 2026 to boost foot traffic and diversify revenue.
Key Points
- 1Retains 5.02 million shares, representing 0.64% of Ackman's portfolio and 40% institutional ownership.
- 2Reports YTD stock gain over 15% as of March 5, 2026, outperforming Real Estate Services peers.
- 3Announces Tin Building Balloon Museum with Lux Entertainment for summer 2026 to drive foot traffic.
Scoring Rationale
Company-specific investor update with official filings and project announcement, but limited technical or sector-wide implications constrain impact.
Sources
Public references used for this report.
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