Ticker · CUSIP 090168105
Holders (tracked)
7
Combined shares
2,102,520
Combined value
$132.39M
Last close
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Quarter
2025Q4
SEC event timeline
7 events
- T. Rowe Price opened position2026-02-17+485,283 shares · 2025Q413F
- +5,706 shares · 2025Q413F
- +148,868 shares · 2025Q413F
- +170,000 shares · 2025Q413F
- +14,500 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+10,000 shares · 2025Q413F
- Baillie Gifford & Co opened position2026-01-23+1,268,163 shares · 2025Q413F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions7
- Baillie Gifford & Co+1,268,163$103.8M
- Ron Baron (Baron Capital / BAMCO)+170,000$13.9M
- Ken Griffin (Citadel Advisors)+148,868$12.2M
- George Soros (Soros Fund Mgmt)+14,500$1.2M
- Norges Bank (Norway SWF)+10,000$818K
- Izzy Englander (Millennium Mgmt)+5,706$467K
- T. Rowe Price+485,283$40K
Added to0
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Trimmed0
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Exited0
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Who owns BLLN
7 super-investors · 2025Q4
Tracked stake
2.10M
shares
Combined value
$132M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Baillie Gifford & Co | 1.27M | $104M |
| 2 | Ron Baron Baron Capital / BAMCO | 170.0K | $14M |
| 3 | Ken Griffin Citadel Advisors | 148.9K | $12M |
| 4 | George Soros Soros Fund Mgmt | 14.5K | $1M |
| 5 | Norges Bank Norway SWF | 10.0K | $818K |
| 6 | Izzy Englander Millennium Mgmt | 5.7K | $467K |
| 7 | T. Rowe Price | 485.3K | $40K |
Recent moves
7 transactions
- +485,283 · 2025Q4
- +5,706 · 2025Q4
- +148,868 · 2025Q4
- +170,000 · 2025Q4
- +14,500 · 2025Q4
- +10,000 · 2025Q4
- +1,268,163 · 2025Q4
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