Who owns NBR? 13F holders and whale ownership
NBR is tracked across public portfolios in Whale Analyzer. This page answers who owns NBR, which top funds are buying NBR, aggregate disclosed value, and recent position changes based on public data. Bill Miller is the largest reported holder at $38M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (0 increased, 1 reduced); the stock trades above the aggregate whale cost basis of $17.73. Top tracked holders include Bill Miller.
Continue to the live NBR dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Bill Miller 13F portfolio Miller Value Partners holdings | $38.2M | 444.4K | Reduced |
Ownership concentration
Reported ownership of NBR 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 reduced. Net positioning is net selling.
- Bill Miller — Miller Value Partners ($38.2M) (▼ 26.3% qoq shares) · avg cost $17.73
Whale cost basis vs current price
The aggregate tracked cost basis is $17.73 versus a current price of $82.61, so NBR trades above its cost basis (+365.9%). Average unrealized P&L across tracked holders: 501%.
Sector positioning — Other
NBR 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 NBR dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- CRGY whale holders — CRESCENT ENERGY COMPANY
- GTN-A whale holders — GRAY MEDIA INC
- LNC-PD whale holders — LINCOLN NATL CORP IND
- MDY whale holders — STATE STR SPDR S&P 500 ETF T
- QUAD whale holders — QUAD / GRAPHICS INC
- BFH-PA whale holders — BREAD FINANCIAL HOLDINGS INC
- TDAY whale holders — USA TODAY CO INC
- CNDT whale holders — CONDUENT INC
Learn more in Whale Analyzer Academy
Deepen your read on NBR with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns NBR stock?
Whale Analyzer tracks 1 public institutional holders of NBR with a combined reported value of $38.2M. See the holder table above for the largest tracked positions.
Which top funds are buying NBR?
Tracked institutions were net selling last quarter — 1 reduced. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is NBR ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is NBR above or below the whale cost basis?
The aggregate tracked cost basis is $17.73 versus a current price of $82.61 (+365.9%).
What does 13F ownership mean for NBR?
Use the interactive NBR dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.