Who owns ALK? 13F holders and whale ownership
ALK is tracked across public portfolios in Whale Analyzer. This page answers who owns ALK, which top funds are buying ALK, aggregate disclosed value, and recent position changes based on public data. Chris Bloomstran is the largest reported holder at $62M; the top five funds control 100.0% of reported ownership; institutions were net buying last quarter (1 increased, 0 reduced); the stock trades above the aggregate whale cost basis of $38.46. Top tracked holders include Chris Bloomstran.
Continue to the live ALK dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Chris Bloomstran 13F portfolio Semper Augustus Investments holdings | $62.3M | 1.7M | Increased |
Ownership concentration
Reported ownership of ALK 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.
- Chris Bloomstran — Semper Augustus Investments ($62.3M) (▲ 314.2% qoq shares) · avg cost $38.46
Whale cost basis vs current price
The aggregate tracked cost basis is $38.46 versus a current price of $53.86, so ALK trades above its cost basis (+40.0%). Average unrealized P&L across tracked holders: 4%.
Sector positioning — Other
ALK 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 ALK dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- BRK.B whale holders — BERKSHIRE HATHAWAY INC DEL
- BRK-A whale holders — BERKSHIRE HATHAWAY INC DEL
- DG whale holders — DOLLAR GEN CORP
- DECK whale holders — DECKERS OUTDOOR CORP
- OLN whale holders — OLIN CORP
- DLTR whale holders — DOLLAR TREE INC
- NEMCL whale holders — NEWMONT CORP
- KGCRF whale holders — KINROSS GOLD CORP
Learn more in Whale Analyzer Academy
Deepen your read on ALK with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns ALK stock?
Whale Analyzer tracks 1 public institutional holders of ALK with a combined reported value of $62.3M. See the holder table above for the largest tracked positions.
Which top funds are buying ALK?
Tracked institutions were net buying last quarter — 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is ALK ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is ALK above or below the whale cost basis?
The aggregate tracked cost basis is $38.46 versus a current price of $53.86 (+40.0%).
What does 13F ownership mean for ALK?
Use the interactive ALK dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.