Which superinvestors hold Seaport Entmt Group Inc (SEG)?

Per the latest SEC 13F filings, 1 superinvestor hold Seaport Entmt Group Inc (SEG): Bill Ackman. Combined value held is about $107.9M, with Bill Ackman the largest holder.

Seaport Entmt Group Inc

Held by 1 superinvestor (SEG). Valuation data coming soon.

Educational data only — not investment advice. 13F positions are self-reported and can lag up to 45 days.

TickerSEG

Holder count1

Total value held$107.9M

Largest holderBill Ackman

External

Ownership overview

Seaport Entmt Group Inc (SEG) is held by 1 of the superinvestors tracked on Compounder, with a combined $107.9M in reported 13F value. The largest position belongs to Bill Ackman, where it makes up 0.8% of the portfolio.

Holder counts and values reflect the most recent SEC Form 13F filings, through the quarter ended 2026-03-31. Source: SEC EDGAR. A 13F shows only long US-listed positions and can lag the real portfolio by up to 45 days, so this is disclosed long ownership, not a complete picture.

Superinvestors Holding This Security

Investor	Value	Shares	Weight
Bill Ackman	$107.9M	5,023,780	0.79%

Bill Ackman
Value$107.9MShares5,023,780Weight0.79%

Stock valuation (intrinsic value / DCF) coming soon.

Sources· SEC EDGAR 13F as of 2026-05-15

Bill Ackman

Stay Updated

Curated 13F moves and valuation insights, straight to your inbox.