Who owns SEG? 13F holders and whale ownership
SEG is tracked across public portfolios in Whale Analyzer. This page answers who owns SEG, which top funds are buying SEG, aggregate disclosed value, and recent position changes based on public data. Bill Ackman is the largest reported holder at $108M; the top five funds control 100.0% of reported ownership; the stock trades above the aggregate whale cost basis of $25.32. Top tracked holders include Bill Ackman.
Continue to the live SEG dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Bill Ackman 13F portfolio Pershing Square Capital holdings | $107.9M | 5.0M | Held |
Ownership concentration
Reported ownership of SEG is highly concentrated across tracked institutions.
- Single largest holder: 100.0% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 1 tracked institutions, 1 held. Net positioning is stable.
- Bill Ackman — Pershing Square Capital ($107.9M) (→ 0.0% qoq shares) · avg cost $25.32
Whale cost basis vs current price
The aggregate tracked cost basis is $25.32 versus a current price of $27.07, so SEG trades above its cost basis (+6.9%). Average unrealized P&L across tracked holders: -5%.
Sector positioning — Other
SEG sits within the Other sector alongside 670 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live SEG dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- BN whale holders — BROOKFIELD CORP
- AMZN whale holders — AMAZON COM INC
- UBER whale holders — UBER TECHNOLOGIES INC
- MSFT whale holders — MICROSOFT CORP
- QSR whale holders — RESTAURANT BRANDS INTL INC
- META whale holders — META PLATFORMS INC
- HHH whale holders — HOWARD HUGHES HOLDINGS INC
- GOOG whale holders — ALPHABET INC
Learn more in Whale Analyzer Academy
Deepen your read on SEG with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns SEG stock?
Whale Analyzer tracks 1 public institutional holders of SEG with a combined reported value of $107.9M. See the holder table above for the largest tracked positions.
Which top funds are buying SEG?
Tracked institutions were stable last quarter — 1 held. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is SEG ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is SEG above or below the whale cost basis?
The aggregate tracked cost basis is $25.32 versus a current price of $27.07 (+6.9%).
What does 13F ownership mean for SEG?
Use the interactive SEG dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.