Who owns BBIO? 13F holders and whale ownership
BBIO is tracked across public portfolios in Whale Analyzer. This page answers who owns BBIO, which top funds are buying BBIO, aggregate disclosed value, and recent position changes based on public data. Andreas Halvorsen is the largest reported holder at $879M; 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 $39.79. Top tracked holders include Andreas Halvorsen and Polen Capital.
Continue to the live BBIO dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Andreas Halvorsen 13F portfolio Viking Global Investors holdings | $879.4M | 11.8M | Reduced |
| Polen Capital 13F portfolio Polen Capital Management holdings | $3.4M | 45.9K | Increased |
Ownership concentration
Reported ownership of BBIO is highly concentrated across tracked institutions.
- Single largest holder: 99.6% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 2 tracked institutions, 1 reduced, 1 increased. Net positioning is net selling.
- Andreas Halvorsen — Viking Global Investors ($879.4M) (▼ 17.7% qoq shares)
- Polen Capital — Polen Capital Management ($3.4M) (▲ 20.1% qoq shares) · avg cost $39.79
Whale cost basis vs current price
The aggregate tracked cost basis is $39.79 versus a current price of $70.24, so BBIO trades above its cost basis (+76.5%). Average unrealized P&L across tracked holders: 66%.
Sector positioning — Health Care
BBIO sits within the Health Care sector alongside 221 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 BBIO dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- V whale holders — VISA INC
- TSMWF whale holders — TAIWAN SEMICONDUCTOR MANUFAC
- SCHW whale holders — SCHWAB CHARLES CORP
- DIS whale holders — DISNEY WALT CO
- FTV whale holders — FORTIVE CORP
- APD whale holders — AIR PRODUCTS AND CHEMICALS I
- MCD whale holders — MCDONALDS CORP
- SHW whale holders — SHERWIN WILLIAMS CO
Learn more in Whale Analyzer Academy
Deepen your read on BBIO with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns BBIO stock?
Whale Analyzer tracks 2 public institutional holders of BBIO with a combined reported value of $882.8M. See the holder table above for the largest tracked positions.
Which top funds are buying BBIO?
Tracked institutions were net selling last quarter — 1 reduced, 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is BBIO ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is BBIO above or below the whale cost basis?
The aggregate tracked cost basis is $39.79 versus a current price of $70.24 (+76.5%).
What does 13F ownership mean for BBIO?
Use the interactive BBIO dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.