Who owns SGI? 13F holders and whale ownership
SGI is tracked across public portfolios in Whale Analyzer. This page answers who owns SGI, which top funds are buying SGI, aggregate disclosed value, and recent position changes based on public data. Dan Sundheim is the largest reported holder at $347M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (1 increased, 1 reduced); the stock trades above the aggregate whale cost basis of $32.33. Top tracked holders include Dan Sundheim and Dan Loeb.
Continue to the live SGI dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Dan Sundheim 13F portfolio D1 Capital Partners holdings | $346.6M | 4.7M | New |
| Dan Loeb 13F portfolio Third Point holdings | $167.9M | 2.3M | Reduced |
Ownership concentration
Reported ownership of SGI is highly concentrated across tracked institutions.
- Single largest holder: 67.4% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 2 tracked institutions, 1 increased, 1 reduced. Net positioning is net selling.
- Dan Sundheim — D1 Capital Partners ($346.6M) · avg cost $16.47
- Dan Loeb — Third Point ($167.9M) (▼ 33.2% qoq shares) · avg cost $65.09
Whale cost basis vs current price
The aggregate tracked cost basis is $32.33 versus a current price of $77.94, so SGI trades above its cost basis (+141.0%). Average unrealized P&L across tracked holders: 150%.
Sector positioning — Other
SGI 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 SGI dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
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Learn more in Whale Analyzer Academy
Deepen your read on SGI with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns SGI stock?
Whale Analyzer tracks 2 public institutional holders of SGI with a combined reported value of $514.4M. See the holder table above for the largest tracked positions.
Which top funds are buying SGI?
Tracked institutions were net selling last quarter — 1 increased, 1 reduced. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is SGI ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is SGI above or below the whale cost basis?
The aggregate tracked cost basis is $32.33 versus a current price of $77.94 (+141.0%).
What does 13F ownership mean for SGI?
Use the interactive SGI dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.