Ticker · CUSIP 071705107
Holders (tracked)
13
Combined shares
13,970,276
Combined value
$57.96B
Last close
$16.82
Quarter
2025Q4
Price · 1Y$16.82+4.76 (+39.47%)H $18.60 · L $10.90 · Avg Vol 587K
Position opened
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
Price is -99.6% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) added2026-02-17+209,109 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+239,625 shares · 2025Q4Position
- Howard Marks (Oaktree Capital) added2026-02-17+137,300 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+13,827 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+23,340 shares · 2025Q4Position
- Larry Robbins (Glenview Capital) added2026-02-17+100,000 shares · 2025Q4Position
- +80,043 shares · 2025Q4Position
- +91,269 shares · 2025Q4Position
- Lee Ainslie (Maverick Capital) trimmed2026-02-13−25,583 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−68,000 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) exited2025-11-14−274,797 shares · 2025Q3Position
- +177,766 shares · 2025Q3Position
- T. Rowe Price trimmed2025-11-14−12,347 shares · 2025Q3Position
- Howard Marks (Oaktree Capital) added2025-11-13+724,194 shares · 2025Q3Position
- Mario Gabelli (GAMCO) trimmed2025-11-12−500 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of BLCO…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Izzy Englander (Millennium Mgmt) | 2022Q2 | $13.26 | +26.8% | $1.3M |
| Larry Robbins (Glenview Capital) | 2022Q3 | $13.96 | +20.5% | $27.8M |
| Lee Ainslie (Maverick Capital) | 2025Q3 | $15.07 | +11.6% | $2.6M |
| Carl Icahn | 2022Q2 | $15.24 | +10.4% | $58.9M |
| Steve Cohen (Point72) | 2022Q2 | $16.29 | +3.3% | $233K |
| D.E. Shaw & Co. | 2022Q4 | $16.38 | +2.7% | $47.9M |
| T. Rowe Price | 2024Q4 | $16.68 | +0.8% | $21.2M |
| Ken Griffin (Citadel Advisors) | 2022Q2 | $17.02 | -1.1% | $616K |
| Ken Griffin (Citadel Advisors) | 2022Q2 | $17.02 | -1.1% | $616K |
| Ken Griffin (Citadel Advisors) | 2022Q2 | $17.02 | -1.1% | $616K |
| Mario Gabelli (GAMCO) | 2022Q3 | $17.70 | -5.0% | $286K |
| Paul Tudor Jones (Tudor Investment) | 2024Q3 | $18.59 | -9.5% | $1.5M |
| Howard Marks (Oaktree Capital) | 2025Q2 | $13616.21 | -99.9% | $56.9M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- Paul Tudor Jones (Tudor Investment)+91,269$1.6M
- Izzy Englander (Millennium Mgmt)+80,043$1.4M
- Steve Cohen (Point72)+13,827$236K
Added to5
- D.E. Shaw & Co.+239,625$4.1M
- Ken Griffin (Citadel Advisors)+209,109$3.6M
- Howard Marks (Oaktree Capital)+137,300$2.3M
- Larry Robbins (Glenview Capital)+100,000$1.7M
- T. Rowe Price+23,340$399
Trimmed2
- Mario Gabelli (GAMCO)−68,000$1.2M
- Lee Ainslie (Maverick Capital)−25,583$437K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q2 | 9 | $49.45B |
| 2022Q3 | 7 | $213.0M |
| 2022Q4 | 9 | $177.1M |
| 2023Q1 | 11 | $182.9M |
| 2023Q2 | 10 | $178.1M |
| 2023Q3 | 10 | $103.8M |
| 2023Q4 | 8 | $107.6M |
| 2024Q1 | 8 | $99.0M |
| 2024Q2 | 9 | $74.5M |
| 2024Q3 | 8 | $118.4M |
| 2024Q4 | 11 | $139.1M |
| 2025Q1 | 12 | $118.8M |
| 2025Q2 | 11 | $32.93B |
| 2025Q3 | 10 | $49.06B |
| 2025Q4 | 13 | $57.96B |
Who owns BLCO
13 super-investors · 2025Q4
Tracked stake
13.97M
shares
Combined value
$57.96B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added7Trim2Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Howard Marks Oaktree Capital | 3.38M | $57.78B |
| 2 | Carl Icahn | 3.50M | $60M |
| 3 | D.E. Shaw & Co. | 2.85M | $49M |
| 4 | Larry Robbins Glenview Capital | 1.65M | $28M |
| 5 | T. Rowe Price | 1.26M | $22M |
| 6 | Ken Griffin Citadel Advisors | 911.3K | $16M |
| 7 | Lee Ainslie Maverick Capital | 152.2K | $3M |
| 8 | Paul Tudor Jones Tudor Investment | 91.3K | $2M |
| 9 | Izzy Englander Millennium Mgmt | 80.0K | $1M |
| 10 | Ken Griffin Citadel Advisors | 36.6K | $625K |
| 11 | Ken Griffin Citadel Advisors | 24.5K | $418K |
| 12 | Mario Gabelli GAMCO | 17.0K | $290K |
| 13 | Steve Cohen Point72 | 13.8K | $236K |
Recent moves
20 transactions
- +239,625 · 2025Q4
- +91,269 · 2025Q4
- +209,109 · 2025Q4
- +80,043 · 2025Q4
- +13,827 · 2025Q4
- +137,300 · 2025Q4
- +100,000 · 2025Q4
- +23,340 · 2025Q4
- −25,583 · 2025Q4
- −68,000 · 2025Q4
- +177,766 · 2025Q3
- −274,797 · 2025Q3
- TRIMT. Rowe Price−12,347 · 2025Q3
- +724,194 · 2025Q3
- −500 · 2025Q3
- +249,049 · 2025Q2
- +728,676 · 2025Q2
- TRIMT. Rowe Price−32,587 · 2025Q2
- −217,594 · 2025Q2
- +1,053,855 · 2025Q2
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