Who owns OLN? 13F holders and whale ownership
OLN is tracked across public portfolios in Whale Analyzer. This page answers who owns OLN, which top funds are buying OLN, aggregate disclosed value, and recent position changes based on public data. Chris Bloomstran is the largest reported holder at $60M; 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 $15.97. Top tracked holders include Chris Bloomstran.
Continue to the live OLN dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Chris Bloomstran 13F portfolio Semper Augustus Investments holdings | $60.3M | 2.0M | Increased |
Ownership concentration
Reported ownership of OLN 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 ($60.3M) (▲ 4.4% qoq shares) · avg cost $15.97
Whale cost basis vs current price
The aggregate tracked cost basis is $15.97 versus a current price of $21.73, so OLN trades above its cost basis (+36.1%). Average unrealized P&L across tracked holders: 65%.
Sector positioning — Other
OLN 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 OLN 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
- ALK whale holders — ALASKA AIR GROUP INC
- 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 OLN with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns OLN stock?
Whale Analyzer tracks 1 public institutional holders of OLN with a combined reported value of $60.3M. See the holder table above for the largest tracked positions.
Which top funds are buying OLN?
Tracked institutions were net buying last quarter — 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is OLN ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is OLN above or below the whale cost basis?
The aggregate tracked cost basis is $15.97 versus a current price of $21.73 (+36.1%).
What does 13F ownership mean for OLN?
Use the interactive OLN dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.