BLLN

BillionToOne, Inc.

Insider trading activity for BillionToOne, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$31.7M

net selling

Bought(0 · 0 insiders): $0
Sold(117 · 5 insiders): $31.7M

Past 6 months

-$31.7M

net selling

Bought(0 · 0 insiders): $0
Sold(117 · 5 insiders): $31.7M

Past 12 months

-$31.7M

net selling

Bought(0 · 0 insiders): $0
Sold(117 · 5 insiders): $31.7M

Transaction history

The 100 most recent Form 4 transactions.

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Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 10	Tsao David	Chief Technology Officer	MEXER◷◆	10,000	$2.80	$28K	—	Open the original filing on SEC.gov
Aug 10	Tsao David	Chief Technology Officer	SSELL◷	10,000	$92.86	$928.6K	-90.9%	Open the original filing on SEC.gov
Aug 10	Tsao David	Chief Technology Officer	MEXER◷	10,000	$2.80	$28K	+1,000%	Open the original filing on SEC.gov
Aug 10	ten Bosch John Roderick	SVP of Laboratory…	SSELL◷	1,417	$92.86	$131.6K	-4.8%	Open the original filing on SEC.gov
Aug 5	Atay Oguzhan	Chairman and CEO	MEXER◷◆	15,539	$2.80	$43.5K	—	Open the original filing on SEC.gov
Aug 5	Atay Oguzhan	Chairman and CEO	SSELL◷	15,539	$150.03	$2.3M	-100.0%	Open the original filing on SEC.gov
Aug 5	Atay Oguzhan	Chairman and CEO	MEXER◷	15,539	$2.80	$43.5K	—	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷◆	6,250	$2.80	$17.5K	—	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷◆	6,250	$2.80	$17.5K	—	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷◆	20,000	$2.80	$56K	—	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	6,250	$137.37	$858.6K	-3.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	6,250	$137.37	$858.6K	-3.6%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	82	$139.20	$11.4K	-100.0%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	760	$138.09	$104.9K	-90.3%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	3,125	$137.25	$428.9K	-78.8%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	1,983	$136.42	$270.5K	-33.3%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	43	$135.41	$5.8K	-0.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	173	$133.81	$23.1K	-2.8%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	84	$133.01	$11.2K	-1.3%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	82	$139.21	$11.4K	-1.3%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	762	$138.09	$105.2K	-10.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	3,124	$137.25	$428.8K	-30.6%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	1,981	$136.42	$270.3K	-16.2%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	44	$135.41	$6K	-0.4%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	173	$133.81	$23.1K	-1.4%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	84	$133.00	$11.2K	-0.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	267	$139.21	$37.2K	-2.1%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	2,431	$138.09	$335.7K	-16.0%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	9,989	$137.25	$1.4M	-39.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	6,354	$136.42	$866.8K	-20.2%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	135	$135.42	$18.3K	-0.4%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	555	$133.81	$74.3K	-1.7%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	SSELL◷	269	$133.01	$35.8K	-0.8%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷	6,250	$2.80	$17.5K	+23.8%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷	6,250	$2.80	$17.5K	+31.3%	Open the original filing on SEC.gov
Aug 3	Atay Oguzhan	Chairman and CEO	MEXER◷	20,000	$2.80	$56K	—	Open the original filing on SEC.gov
Jul 31	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	4,000	$140.21	$560.8K	-2.0%	Open the original filing on SEC.gov
Jul 16	Johnson Nancy JoAnn	See Remarks	SSELL◷	906	$129.78	$117.6K	-11.6%	Open the original filing on SEC.gov
Jul 16	Johnson Nancy JoAnn	See Remarks	SSELL◷	5,601	$128.96	$722.3K	-41.8%	Open the original filing on SEC.gov
Jul 16	Johnson Nancy JoAnn	See Remarks	SSELL◷	5,559	$127.89	$710.9K	-29.3%	Open the original filing on SEC.gov
Jul 16	Johnson Nancy JoAnn	See Remarks	SSELL◷	2,133	$126.98	$270.9K	-10.1%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	MEXER◷◆	10,000	$2.80	$28K	—	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	MEXER◷◆	10,000	$2.80	$28K	—	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	1,028	$126.90	$130.4K	-50.7%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	3,835	$125.76	$482.3K	-65.4%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	1,725	$124.65	$215K	-22.7%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	2,274	$123.71	$281.3K	-23.1%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	1,138	$122.84	$139.8K	-10.3%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	821	$126.89	$104.2K	-7.0%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	3,185	$125.85	$400.8K	-21.2%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	2,415	$124.90	$301.6K	-13.9%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	2,477	$123.84	$306.8K	-12.4%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	SSELL◷	1,102	$122.90	$135.4K	-5.3%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	MEXER◷	10,000	$2.80	$28K	+90.9%	Open the original filing on SEC.gov
Jul 13	Tsao David	Chief Technology Officer	MEXER◷	10,000	$2.80	$28K	+1,000%	Open the original filing on SEC.gov
Jul 13	ten Bosch John Roderick	SVP of Laboratory…	SSELL◷	1,417	$125.46	$177.8K	-4.6%	Open the original filing on SEC.gov
Jul 13	ten Bosch John Roderick	SVP of Laboratory…	SSELL◷	1,417	$125.46	$177.8K	-4.4%	Open the original filing on SEC.gov
Jul 13	ten Bosch John Roderick	SVP of Laboratory…	SSELL◷	1,417	$125.46	$177.8K	-4.2%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷◆	1,354	$30.78	$41.7K	—	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷◆	1,355	$30.78	$41.7K	—	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷◆	1,117	$30.78	$34.4K	—	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷◆	174	$8.65	$1.5K	—	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	1,354	$125.00	$169.3K	-0.7%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	1,355	$125.00	$169.4K	-0.7%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	1,117	$125.00	$139.6K	-0.5%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	174	$125.00	$21.8K	<0.1%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	SSELL◷	4,000	$125.00	$500K	-1.9%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷	1,354	$30.78	$41.7K	+0.6%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷	1,355	$30.78	$41.7K	+0.7%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷	1,117	$30.78	$34.4K	+0.5%	Open the original filing on SEC.gov
Jul 9	Sakakibara Shan Riku	Chief Product Officer	MEXER◷	174	$8.65	$1.5K	+<0.1%	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	MEXER◷◆	12,500	$2.80	$35K	—	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	SSELL◷	352	$128.23	$45.1K	-100.0%	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	SSELL◷	2,657	$127.44	$338.6K	-88.3%	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	SSELL◷	2,002	$126.48	$253.2K	-40.0%	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	SSELL◷	7,489	$125.43	$939.3K	-59.9%	Open the original filing on SEC.gov
Jul 9	Atay Oguzhan	Chairman and CEO	MEXER◷	12,500	$2.80	$35K	—	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	MEXER◷◆	6,250	$2.80	$17.5K	—	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	MEXER◷◆	20,000	$2.80	$56K	—	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	50	$124.74	$6.2K	<0.1%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,221	$124.04	$151.5K	-0.7%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	2,324	$123.25	$286.4K	-1.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	586	$122.08	$71.5K	-0.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	444	$120.69	$53.6K	-0.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	591	$119.67	$70.7K	-0.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,034	$118.81	$122.8K	-0.6%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	50	$124.74	$6.2K	<0.1%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,221	$124.04	$151.5K	-0.7%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	2,323	$123.25	$286.3K	-1.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	587	$122.08	$71.7K	-0.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	444	$120.69	$53.6K	-0.2%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	591	$119.67	$70.7K	-0.3%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,034	$118.81	$122.8K	-0.5%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	194	$124.61	$24.2K	-100.0%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,642	$123.81	$203.3K	-89.4%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,945	$123.07	$239.4K	-51.4%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	349	$121.84	$42.5K	-8.5%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	570	$120.66	$68.8K	-12.1%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	1,138	$119.36	$135.8K	-19.5%	Open the original filing on SEC.gov
Jul 6	Atay Oguzhan	Chairman and CEO	SSELL◷	412	$118.49	$48.8K	-6.6%	Open the original filing on SEC.gov

MEXER◷◆$28K

Tsao David · Chief Technology…Aug 10

10,000 sh @ $2.80

SSELL◷$928.6K

Tsao David · Chief Technology…Aug 10

10,000 sh @ $92.86 · -90.9% own

MEXER◷$28K

Tsao David · Chief Technology…Aug 10

10,000 sh @ $2.80 · +1,000% own

SSELL◷$131.6K

ten Bosch John Roderick · SVP of Laboratory…Aug 10

1,417 sh @ $92.86 · -4.8% own

MEXER◷◆$43.5K

Atay Oguzhan · Chairman and CEOAug 5

15,539 sh @ $2.80

SSELL◷$2.3M

Atay Oguzhan · Chairman and CEOAug 5

15,539 sh @ $150.03 · -100.0% own

MEXER◷$43.5K

Atay Oguzhan · Chairman and CEOAug 5

15,539 sh @ $2.80

MEXER◷◆$17.5K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $2.80

MEXER◷◆$17.5K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $2.80

MEXER◷◆$56K

Atay Oguzhan · Chairman and CEOAug 3

20,000 sh @ $2.80

SSELL◷$858.6K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $137.37 · -3.7% own

SSELL◷$858.6K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $137.37 · -3.6% own

SSELL◷$11.4K

Atay Oguzhan · Chairman and CEOAug 3

82 sh @ $139.20 · -100.0% own

SSELL◷$104.9K

Atay Oguzhan · Chairman and CEOAug 3

760 sh @ $138.09 · -90.3% own

SSELL◷$428.9K

Atay Oguzhan · Chairman and CEOAug 3

3,125 sh @ $137.25 · -78.8% own

SSELL◷$270.5K

Atay Oguzhan · Chairman and CEOAug 3

1,983 sh @ $136.42 · -33.3% own

SSELL◷$5.8K

Atay Oguzhan · Chairman and CEOAug 3

43 sh @ $135.41 · -0.7% own

SSELL◷$23.1K

Atay Oguzhan · Chairman and CEOAug 3

173 sh @ $133.81 · -2.8% own

SSELL◷$11.2K

Atay Oguzhan · Chairman and CEOAug 3

84 sh @ $133.01 · -1.3% own

SSELL◷$11.4K

Atay Oguzhan · Chairman and CEOAug 3

82 sh @ $139.21 · -1.3% own

SSELL◷$105.2K

Atay Oguzhan · Chairman and CEOAug 3

762 sh @ $138.09 · -10.7% own

SSELL◷$428.8K

Atay Oguzhan · Chairman and CEOAug 3

3,124 sh @ $137.25 · -30.6% own

SSELL◷$270.3K

Atay Oguzhan · Chairman and CEOAug 3

1,981 sh @ $136.42 · -16.2% own

SSELL◷$6K

Atay Oguzhan · Chairman and CEOAug 3

44 sh @ $135.41 · -0.4% own

SSELL◷$23.1K

Atay Oguzhan · Chairman and CEOAug 3

173 sh @ $133.81 · -1.4% own

SSELL◷$11.2K

Atay Oguzhan · Chairman and CEOAug 3

84 sh @ $133.00 · -0.7% own

SSELL◷$37.2K

Atay Oguzhan · Chairman and CEOAug 3

267 sh @ $139.21 · -2.1% own

SSELL◷$335.7K

Atay Oguzhan · Chairman and CEOAug 3

2,431 sh @ $138.09 · -16.0% own

SSELL◷$1.4M

Atay Oguzhan · Chairman and CEOAug 3

9,989 sh @ $137.25 · -39.7% own

SSELL◷$866.8K

Atay Oguzhan · Chairman and CEOAug 3

6,354 sh @ $136.42 · -20.2% own

SSELL◷$18.3K

Atay Oguzhan · Chairman and CEOAug 3

135 sh @ $135.42 · -0.4% own

SSELL◷$74.3K

Atay Oguzhan · Chairman and CEOAug 3

555 sh @ $133.81 · -1.7% own

SSELL◷$35.8K

Atay Oguzhan · Chairman and CEOAug 3

269 sh @ $133.01 · -0.8% own

MEXER◷$17.5K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $2.80 · +23.8% own

MEXER◷$17.5K

Atay Oguzhan · Chairman and CEOAug 3

6,250 sh @ $2.80 · +31.3% own

MEXER◷$56K

Atay Oguzhan · Chairman and CEOAug 3

20,000 sh @ $2.80

SSELL◷$560.8K

Sakakibara Shan Riku · Chief Product…Jul 31

4,000 sh @ $140.21 · -2.0% own

SSELL◷$117.6K

Johnson Nancy JoAnn · See RemarksJul 16

906 sh @ $129.78 · -11.6% own

SSELL◷$722.3K

Johnson Nancy JoAnn · See RemarksJul 16

5,601 sh @ $128.96 · -41.8% own

SSELL◷$710.9K

Johnson Nancy JoAnn · See RemarksJul 16

5,559 sh @ $127.89 · -29.3% own

SSELL◷$270.9K

Johnson Nancy JoAnn · See RemarksJul 16

2,133 sh @ $126.98 · -10.1% own

MEXER◷◆$28K