Who owns SD? 13F holders and whale ownership
SD is tracked across public portfolios in Whale Analyzer. This page answers who owns SD, which top funds are buying SD, aggregate disclosed value, and recent position changes based on public data. Carl Icahn is the largest reported holder at $81M; the top five funds control 100.0% of reported ownership; institutions were net buying last quarter (1 increased, 0 reduced); the stock trades below the aggregate whale cost basis of $18.45. Top tracked holders include Carl Icahn.
Continue to the live SD dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Carl Icahn 13F portfolio Icahn Enterprises holdings | $80.7M | 4.9M | Increased |
Ownership concentration
Reported ownership of SD 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 increased. Net positioning is net buying.
- Carl Icahn — Icahn Enterprises ($80.7M) (▲ 0.7% qoq shares) · avg cost $18.45
Whale cost basis vs current price
The aggregate tracked cost basis is $18.45 versus a current price of $13.51, so SD trades below its cost basis (-26.8%). Average unrealized P&L across tracked holders: -16%.
Sector positioning — Energy
SD sits within the Energy sector alongside 58 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 SD dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- IEP whale holders — Icahn Enterprises LP
- CVI whale holders — CVR Energy Inc
- UAN whale holders — CVR Partners, LP
- CTRI whale holders — Centuri Holdings, Inc.
- IFF whale holders — International Flavors and Fragrances Inc.
- SATS whale holders — EchoStar Corporation
- AEP whale holders — American Electric Power Company
- JBLU whale holders — JetBlue Airways Corp.
Learn more in Whale Analyzer Academy
Deepen your read on SD with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns SD stock?
Whale Analyzer tracks 1 public institutional holders of SD with a combined reported value of $80.7M. See the holder table above for the largest tracked positions.
Which top funds are buying SD?
Tracked institutions were net buying last quarter — 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is SD ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is SD above or below the whale cost basis?
The aggregate tracked cost basis is $18.45 versus a current price of $13.51 (-26.8%).
What does 13F ownership mean for SD?
Use the interactive SD dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.