BLLN
BILLIONTOONE-A (BLLN)
NASDAQ
$105.72+$1.05 (+1.00%)
Price as of Oct 22, 2026 7:37 PM EDT
  • $4.5B
    Market Cap
  • N/A
    1-Year Change
  • Diagnostics & Research
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
ADAMS STREET PARTNERS LLC
3.63%
1.7M
0 (0.00%)
Jun 30, 2026
N/A
2.33%
1.1M
0 (0.00%)
Mar 31, 2026
PRICE T ROWE ASSOCIATES INC /MD/
2.14%
1.0M
+272,804 (+27.00%)
Jun 30, 2026
BAILLIE GIFFORD & CO
1.91%
901,420
-358,573 (-39.78%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
1.78%
840,970
+689,757 (+82.02%)
Jun 30, 2026
INVESCO LTD.
1.77%
835,614
+429,102 (+51.35%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
1.69%
799,468
+617,005 (+77.18%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions34.9M (71.98%)
  • Mutual Funds13.5M (27.93%)
  • Insiders43,685 (0.09%)
  • Other0 (0.00%)

Insider Transactions

  • 0.09% (43,685)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $667.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Atay Oguzhan
Chairman and CEO
Exempt
Oct 15, 2026
$14,420.00
5,150
$2.80
468,629
Atay Oguzhan
Chairman and CEO
Exempt
Oct 15, 2026
$14,420.00
5,150
$2.80
5,150
Atay Oguzhan
Chairman and CEO
Sell
Oct 15, 2026
$88,589.52
900
$98.43
4,250
Atay Oguzhan
Chairman and CEO
Sell
Oct 15, 2026
$185,809.31
1,861
$99.84
2,389
Atay Oguzhan
Chairman and CEO
Sell
Oct 15, 2026
$128,369.30
1,276
$100.60
1,113
Atay Oguzhan
Chairman and CEO
Sell
Oct 15, 2026
$99,751.36
980
$101.79
133
Atay Oguzhan
Chairman and CEO
Sell
Oct 15, 2026
$13,669.29
133
$102.78
0
Atay Oguzhan
Chairman and CEO
Sell
Oct 14, 2026
$261,366.00
2,667
$98.00
149,168
Atay Oguzhan
Chairman and CEO
Exempt
Oct 14, 2026
$8,912.40
3,183
$2.80
3,183
Atay Oguzhan
Chairman and CEO
Sell
Oct 14, 2026
$303,119.94
3,083
$98.32
100
Atay Oguzhan
Chairman and CEO
Sell
Oct 14, 2026
$9,900.00
100
$99.00
0
Atay Oguzhan
Chairman and CEO
Exempt
Oct 14, 2026
$8,912.40
3,183
$2.80
473,779
Atay Oguzhan
Chairman and CEO
Exempt
Oct 12, 2026
$46,667.60
16,667
$2.80
476,962
Atay Oguzhan
Chairman and CEO
Exempt
Oct 12, 2026
$46,667.60
16,667
$2.80
16,667
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$179,571.12
1,961
$91.57
14,706
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$237,546.44
2,553
$93.05
12,153
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$633,334.66
6,763
$93.65
5,390
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$366,058.86
3,869
$94.61
1,521
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$146,612.84
1,521
$96.39
0
Atay Oguzhan
Chairman and CEO
Sell
Oct 12, 2026
$260,325.87
2,667
$97.61
151,835
Lynch Thomas P.
See Remarks
Exempt
Oct 08, 2026
$69,200.00
8,000
$8.65
40,974
Lynch Thomas P.
See Remarks
Exempt
Oct 08, 2026
$69,200.00
8,000
$8.65
8,700
Tsao David
Chief Technology Officer
Exempt
Oct 05, 2026
$28,000.00
10,000
$2.80
546,667
ten Bosch John Roderick
SVP of Laboratory Operations
Sell
Oct 05, 2026
$148,997.55
1,417
$105.15
20,802
Tsao David
Chief Technology Officer
Exempt
Oct 05, 2026
$28,000.00
10,000
$2.80
536,667
ten Bosch John Roderick
SVP of Laboratory Operations
Sell
Oct 05, 2026
$148,997.55
1,417
$105.15
19,385
Tsao David
Chief Technology Officer
Exempt
Oct 05, 2026
$28,000.00
10,000
$2.80
11,000
Tsao David
Chief Technology Officer
Exempt
Oct 05, 2026
$28,000.00
10,000
$2.80
21,000
Tsao David
Chief Technology Officer
Sell
Oct 05, 2026
$91,709.75
866
$105.90
20,134
Tsao David
Chief Technology Officer
Sell
Oct 05, 2026
$204,635.26
1,909
$107.19
18,225