Tsao David

Track

Insider profile

Tsao David's trades of BillionToOne Inc's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Transaction date
Proposed sale
Price
148.22
Quantity 87,553
Value US$1,675,170
Transaction date
Planned sale
Price
282.47
Quantity 95,911 -34.3%
Value US$1,758,940
Transaction date
Planned sale
Price
268.52
Quantity 70,406 -29.2%
Value US$1,383,837
Transaction date
Proposed sale
Price
97.54
Quantity 1,750
Value US$170,695
Transaction date
Proposed sale
Price
102.27
Quantity 20,000
Value US$2,045,326
Transaction date
Planned sale
Price
100.00
Quantity 10,000 -90.9%
Value US$1,000,000
Transaction date
Proposed sale
Price
100.00
Quantity 10,000
Value US$1,000,000
Transaction date
Planned sale
Price
92.86
Quantity 10,000 -90.9%
Value US$928,600
Transaction date
Proposed sale
Price
92.86
Quantity 3,500
Value US$325,010
Transaction date
Proposed sale
Price
92.86
Quantity 10,000
Value US$928,600
Transaction date
Proposed sale
Price
92.86
Quantity 10,000
Value US$928,600
Transaction date
Planned sale
Price
126.90
Quantity 1,028 -50.7%
Value US$130,448
Transaction date
Planned sale
Price
125.76
Quantity 3,835 -65.4%
Value US$482,285
Transaction date
Planned sale
Price
124.65
Quantity 1,725 -22.7%
Value US$215,028
Transaction date
Planned sale
Price
123.71
Quantity 2,274 -23.1%
Value US$281,314
Transaction date
Planned sale
Price
122.84
Quantity 1,138 -10.3%
Value US$139,795
Transaction date
Planned sale
Price
126.89
Quantity 821 -6.9%
Value US$104,175
Transaction date
Planned sale
Price
125.85
Quantity 3,185 -21.2%
Value US$400,819
Transaction date
Planned sale
Price
124.90
Quantity 2,415 -13.9%
Value US$301,633
Transaction date
Planned sale
Price
123.84
Quantity 2,477 -12.4%
Value US$306,760
Transaction date
Planned sale
Price
122.90
Quantity 1,102 -5.2%
Value US$135,441
Transaction date
Proposed sale
Price
12.52
Quantity 20,000
Value US$250,498
Transaction date
Proposed sale
Price
125.46
Quantity 3,500
Value US$439,110
Transaction date
Planned sale
Price
104.32
Quantity 563 -36.0%
Value US$58,730
Transaction date
Planned sale
Price
103.63
Quantity 2,398 -60.5%
Value US$248,502
Transaction date
Planned sale
Price
102.60
Quantity 2,978 -42.9%
Value US$305,539
Transaction date
Planned sale
Price
101.37
Quantity 2,461 -26.2%
Value US$249,473
Transaction date
Planned sale
Price
100.05
Quantity 1,000 -9.6%
Value US$100,053
Transaction date
Planned sale
Price
98.74
Quantity 600 -5.5%
Value US$59,245
Transaction date
Planned sale
Price
104.47
Quantity 230 -2.0%
Value US$24,029
Transaction date
Planned sale
Price
103.68
Quantity 2,889 -20.5%
Value US$299,544
Transaction date
Planned sale
Price
102.77
Quantity 2,816 -16.6%
Value US$289,411
Transaction date
Planned sale
Price
101.55
Quantity 2,361 -12.2%
Value US$239,765
Transaction date
Planned sale
Price
100.37
Quantity 1,704 -8.1%
Value US$171,034
Transaction date
Proposed sale
Price
102.27
Quantity 20,000
Value US$2,045,325
Transaction date
Proposed sale
Price
101.47
Quantity 3,500
Value US$355,145
Transaction date
Purchase
Price
60.00
Quantity 1,000 +inf%
Value US$60,000
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-09-24 2026-09-24
PrS Proposed sale
87,553
148.22
US$1,675,170 		87,553 148.22 US$1,675,170
2026-09-11 2026-09-09
PlS Planned sale
95,911 -34.3%
282.47
US$1,758,940 		95,911 -34.3% 282.47 US$1,758,940
2026-09-11 2026-09-09
PlS Planned sale
70,406 -29.2%
268.52
US$1,383,837 		70,406 -29.2% 268.52 US$1,383,837
2026-09-09 2026-09-09
PrS Proposed sale
1,750
97.54
US$170,695 		1,750 97.54 US$170,695
2026-09-09 2026-09-09
PrS Proposed sale
20,000
102.27
US$2,045,326 		20,000 102.27 US$2,045,326
2026-08-27 2026-08-25
PlS Planned sale
10,000 -90.9%
100.00
US$1,000,000 		10,000 -90.9% 100.00 US$1,000,000
2026-08-25 2026-08-25
PrS Proposed sale
10,000
100.00
US$1,000,000 		10,000 100.00 US$1,000,000
2026-08-12 2026-08-10
PlS Planned sale
10,000 -90.9%
92.86
US$928,600 		10,000 -90.9% 92.86 US$928,600
2026-08-10 2026-08-10
PrS Proposed sale
3,500
92.86
US$325,010 		3,500 92.86 US$325,010
2026-08-10 2026-08-10
PrS Proposed sale
10,000
92.86
US$928,600 		10,000 92.86 US$928,600
2026-08-10 2026-08-10
PrS Proposed sale
10,000
92.86
US$928,600 		10,000 92.86 US$928,600
2026-07-15 2026-07-13
PlS Planned sale
1,028 -50.7%
126.90
US$130,448 		1,028 -50.7% 126.90 US$130,448
2026-07-15 2026-07-13
PlS Planned sale
3,835 -65.4%
125.76
US$482,285 		3,835 -65.4% 125.76 US$482,285
2026-07-15 2026-07-13
PlS Planned sale
1,725 -22.7%
124.65
US$215,028 		1,725 -22.7% 124.65 US$215,028
2026-07-15 2026-07-13
PlS Planned sale
2,274 -23.1%
123.71
US$281,314 		2,274 -23.1% 123.71 US$281,314
2026-07-15 2026-07-13
PlS Planned sale
1,138 -10.3%
122.84
US$139,795 		1,138 -10.3% 122.84 US$139,795
2026-07-15 2026-07-13
PlS Planned sale
821 -6.9%
126.89
US$104,175 		821 -6.9% 126.89 US$104,175
2026-07-15 2026-07-13
PlS Planned sale
3,185 -21.2%
125.85
US$400,819 		3,185 -21.2% 125.85 US$400,819
2026-07-15 2026-07-13
PlS Planned sale
2,415 -13.9%
124.90
US$301,633 		2,415 -13.9% 124.90 US$301,633
2026-07-15 2026-07-13
PlS Planned sale
2,477 -12.4%
123.84
US$306,760 		2,477 -12.4% 123.84 US$306,760
2026-07-15 2026-07-13
PlS Planned sale
1,102 -5.2%
122.90
US$135,441 		1,102 -5.2% 122.90 US$135,441
2026-07-13 2026-07-13
PrS Proposed sale
20,000
12.52
US$250,498 		20,000 12.52 US$250,498
2026-07-13 2026-07-13
PrS Proposed sale
3,500
125.46
US$439,110 		3,500 125.46 US$439,110
2026-06-17 2026-06-15
PlS Planned sale
563 -36.0%
104.32
US$58,730 		563 -36.0% 104.32 US$58,730
2026-06-17 2026-06-15
PlS Planned sale
2,398 -60.5%
103.63
US$248,502 		2,398 -60.5% 103.63 US$248,502
2026-06-17 2026-06-15
PlS Planned sale
2,978 -42.9%
102.60
US$305,539 		2,978 -42.9% 102.60 US$305,539
2026-06-17 2026-06-15
PlS Planned sale
2,461 -26.2%
101.37
US$249,473 		2,461 -26.2% 101.37 US$249,473
2026-06-17 2026-06-15
PlS Planned sale
1,000 -9.6%
100.05
US$100,053 		1,000 -9.6% 100.05 US$100,053
2026-06-17 2026-06-15
PlS Planned sale
600 -5.5%
98.74
US$59,245 		600 -5.5% 98.74 US$59,245
2026-06-17 2026-06-15
PlS Planned sale
230 -2.0%
104.47
US$24,029 		230 -2.0% 104.47 US$24,029
2026-06-17 2026-06-15
PlS Planned sale
2,889 -20.5%
103.68
US$299,544 		2,889 -20.5% 103.68 US$299,544
2026-06-17 2026-06-15
PlS Planned sale
2,816 -16.6%
102.77
US$289,411 		2,816 -16.6% 102.77 US$289,411
2026-06-17 2026-06-15
PlS Planned sale
2,361 -12.2%
101.55
US$239,765 		2,361 -12.2% 101.55 US$239,765
2026-06-17 2026-06-15
PlS Planned sale
1,704 -8.1%
100.37
US$171,034 		1,704 -8.1% 100.37 US$171,034
2026-06-15 2026-06-15
PrS Proposed sale
20,000
102.27
US$2,045,325 		20,000 102.27 US$2,045,325
2026-06-15 2026-06-15
PrS Proposed sale
3,500
101.47
US$355,145 		3,500 101.47 US$355,145
2025-11-12 2025-11-07
B Purchase
1,000 +inf%
60.00
US$60,000 		1,000 +inf% 60.00 US$60,000