Seaport Entertainment Group
Held by 2 superinvestors (SEG).
Educational data only — not investment advice. 13F positions are self-reported and can lag up to 45 days.
Valuation
Valuation · two methods
Earnings Power & Asset Floor
Two intrinsic-value methods and a tangible asset floor — deterministic, not price forecasts or recommendations.
Zero-growth intrinsic ranges and a tangible asset floor — not investment advice, not a buy/sell signal, and not a price target.
Method & numbers
· reproduction $35.89
Moat Below asset base.
Graham earnings-power value (normalized NOPAT)
Normalized operating earnings net of maintenance capex are non-positive over the years shown; earnings power cannot be capitalized.
Normalized NOPAT = average operating margin over the years shown × latest-year revenue × (1 − normalized tax); then + D&A − maintenance capex (write A). Unlevered (pre-interest, attributable to all capital). Capitalized at the 9–11% rate band (read as a WACC proxy). Enterprise → equity bridge applied: + cash − total debt.
Years: 2025, 2024, 2023, 2022
v1 simplifications: Maintenance capex unavailable → degraded to the v1 simplification (maintenance capex = D&A, so the depreciation add-back nets to zero). Share-based compensation is left as a real expense (not added back).
Buffett owner-earnings value
Normalized owner earnings are non-positive over the years shown; earnings power cannot be capitalized.
Owner earnings = average net income + average D&A − maintenance capex (zero-growth floor; no ΔNWC). Levered (starts from net income, already after interest — an equity-holder stream). Capitalized at the 9–11% rate band (read as a cost-of-equity proxy). No enterprise→equity bridge: the capitalized result is already equity value (subtracting debt would double-count interest).
Years: 2025, 2024, 2023, 2022
v1 simplifications: Maintenance capex or D&A unavailable → degraded to normalized net income (= average net income over the years shown). One-time items are not separately normalized (multi-year averaging smooths them partially). Share-based compensation is left as a real expense (not added back); see the SBC/OE disclosure. Capitalized at the same 9–11% band as a cost-of-equity proxy (theoretically the cost of equity is higher; v2 simplification, v3 to refine).
Reproduction value = tangible net assets $456.51M = $35.89 / sh. Total book value (shareholders' equity ÷ diluted shares); intangibles not separated — goodwill/intangibles unavailable this period.
Moat reading: Franchise test compares earnings power (EPV) against reproduction value (tangible net assets + capitalized R&D). EPV well above reproduction value signals a moat; near it, a commodity; below it, value destruction. A directional reading, not a verdict.
Growth value gated to zero — no moat / ROIIC ≤ WACC, so no growth value is credited.
Window FY 2025, 2024, 2023, 2022 · discount band 9%–11% · normalized tax 0% (Average effective tax rate over 4 year(s), capped at the statutory 21%.) · diluted shares.
Ownership · 13F consensus
Who's buying it
Institutional ownership aggregated across funds — consensus strength and this quarter's moves. Describes actions, not advice.
2 superinvestors hold it · $127.1M combined
Largest holder Bill Ackman
Held by 2 superinvestors of Seaport Entertainment Group (SEG); this quarter 1 added (as of 2026-03-31).
13F positions are self-reported and can lag up to 45 days. Informational only — not investment advice.
Next · is it cheap
Want to see which stocks look cheap against a conservative value band?
Browse all valued stocks, ranked by value bandSuperinvestors Holding This Security
- Value$107.9MWeight (prev→now)0.6% → 0.8%
- Value$19.2MWeight (prev→now)2.1% → 3.4% ▲
Ownership overview
Seaport Entertainment Group (SEG) is held by 2 of the superinvestors tracked on Compounder, with a combined $127.1M in reported 13F value. The largest position belongs to Bill Ackman, where it makes up 0.8% of the portfolio.
Other notable holders by value include Thomas Kahn (3.4% of its book).
Over the latest quarter, 0 of the tracked filers opened a new position in SEG, 1 added to existing ones, 0 trimmed, and 0 sold out entirely.
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.
Holders over time
Superinvestors holding this security over the last 7 quarters: 3 → 2.
Early quarters may understate holder counts due to data backfill — read the slope with care.
Sources· SEC EDGAR 13F as of 2026-03-31 · filed 2026-05-15
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