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BillionToOne, Inc.

BLLN Net buying
CIK 0002070849 #1434 in the set updated 17 Sep 2026
Bought (12 mo)
$3.18M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$40.03M
$6.07M on a plan · $33.95M straight out of an exercise
Sold at will
$0.00
0 of 145 sales
Net
−$36.85M
+$3.18M against sales at will

By person

13 insiders · 156 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Atay Oguzhan
Chairman and CEO
—
$21.63M (76) scheduled
−$21.63M
319,668
2.86%
$31.33M
−86.3%
Tsao David
Chief Technology Officer
$60.00K (1)
$8.45M (25) scheduled
−$8.39M
1,000
0.0089%
$98.00K
−100.0%
Sakakibara Shan Riku
Chief Product Officer
—
$3.23M (10) scheduled
−$3.23M
196,500
1.76%
$19.26M
−10.7%
Johnson Nancy JoAnn
See Remarks
$414.00K (1)
$3.32M (12) scheduled
−$2.91M
6,900
0.0617%
$676.20K
−76.2%
Bremner Thomas S
Director
$2.50M (6)
—
+$2.50M
704,493
6.30%
$69.04M
—
Lynch Thomas P.
See Remarks
$6.00K (1)
$2.00M (13) scheduled
−$1.99M
700
0.0063%
$68.60K
+16.7%
ten Bosch John Roderick
SVP of Laboratory Operations
$48.00K (1)
$1.40M (9) scheduled
−$1.35M
25,051
0.2241%
$2.45M
−32.3%
Rai Akshay
Director
$150.00K (1)
—
+$150.00K
1,798,440
16.09%
$176.25M
—
Ileri Firat
Director
—
—
—
2,621,164
23.45%
$256.87M
—
Humming Bird Ventures Management NV entity
10% owner
—
—
—
2,580,833
23.09%
$252.92M
—
NeoTribe Ventures I, L.P. entity
10% owner
—
—
—
87,362
0.7815%
$8.56M
—
KOLLURI KRISHNA KITTU
Director
—
—
—
69,189
0.6189%
$6.78M
—
Pagano Anthony
Director
—
—
—
7,913
0.0708%
$775.47K
—

Individual transactions

11
Insider
Date
Role
Action
Shares
Price
Amount
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
17,791
$60.00
$1.07M
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
6,867
$60.00
$412.02K
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
5,446
$60.00
$326.76K
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
3,462
$60.00
$207.72K
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
4,084
$60.00
$245.04K
Bremner Thomas S
7 Nov 2025
Director
Buy indirect
4,016
$60.00
$240.96K
Rai Akshay
7 Nov 2025
Director
Buy
2,500
$60.00
$150.00K
Johnson Nancy JoAnn
7 Nov 2025
See Remarks
Buy
6,900
$60.00
$414.00K
ten Bosch John Roderick
7 Nov 2025
See Remarks
Buy
800
$60.00
$48.00K
Tsao David
7 Nov 2025
Chief Technology Officer
Buy
1,000
$60.00
$60.00K
Lynch Thomas P.
7 Nov 2025
See Remarks
Buy
100
$60.00
$6.00K
Show all 156 transactions →

What was left out

Form 4 filings counted 54
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 4
Sales on a Rule 10b5-1 plan 24
Sales straight out of an exercise 121
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 101,990,798
History held since 10 Nov 2025