BLLN · BillionToOne, Inc.

$130.31 +2.13 (+1.66%) At close · Jul 17

Market Cap

$5.99B

45,995,484

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-3

Net shares bought

-0.13%

Net buy value

-$5,979,785

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.440 to $124.435 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	2,477	$123.84	$306,760	17,421
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.185 to $123.105 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,138	$122.84	$139,795	9,862
2026-07-13	ten Bosch John Roderick	See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,417	$125.46	$177,777	29,301
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $126.360 to $127.220 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,028	$126.90	$130,448	1,000
2026-07-13	Tsao David	Director, Chief Technology Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable.	Stock Option (right to buy)	10,000	$2.80	$28,000	600,000
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.290 to $125.240 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,725	$124.65	$215,028	5,863
2026-07-13	Tsao David	Director, Chief Technology Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable.	Stock Option (right to buy)	10,000	$2.80	$28,000	610,000
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $125.4525 to $126.450 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	3,185	$125.85	$400,819	11,821
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $125.295 to $126.2805 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	3,835	$125.76	$482,285	2,028
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.450 to $125.4325 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	2,415	$124.90	$301,633	15,006
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.420 to $123.3775 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,102	$122.90	$135,441	19,898
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.2852 to $124.258 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	2,274	$123.71	$281,314	7,588
2026-07-13	ten Bosch John Roderick	See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,417	$125.46	$177,777	32,135
2026-07-13	ten Bosch John Roderick	See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,417	$125.46	$177,777	30,718
2026-07-13	Tsao David	Director, Chief Technology Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	10,000	$2.80	$28,000	11,000
2026-07-13	Tsao David	Director, Chief Technology Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $126.490 to $127.2981 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	821	$126.89	$104,175	11,000
2026-07-13	Tsao David	Director, Chief Technology Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	10,000	$2.80	$28,000	21,000
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.	Stock Option (right to buy)	174	$8.65	$1,505	35,826
2026-07-09	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $127.100 to $128.060 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	2,657	$127.44	$338,599	352
2026-07-09	Atay Oguzhan	Director, See Remarks	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable.	Stock Option (right to buy)	12,500	$2.80	$35,000	575,000
2026-07-09	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $125.000 to $125.910 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	7,489	$125.43	$939,318	5,011
2026-07-09	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $126.085 to $127.040 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	2,002	$126.48	$253,221	3,009
2026-07-09	Atay Oguzhan	Director, See Remarks	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	12,500	$2.80	$35,000	12,500
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.	Stock Option (right to buy)	1,117	$30.78	$34,381	63,883
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,117	$30.78	$34,381	209,291
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,117	$125.00	$139,625	206,709
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.	Stock Option (right to buy)	1,355	$30.78	$41,707	62,528
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,355	$30.78	$41,707	210,646
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	4,000	$125.00	$500,000	208,000
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	174	$8.65	$1,505	208,174
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,354	$125.00	$169,250	204,000
2026-07-09	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $128.180 to $128.295 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	352	$128.23	$45,138	0
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↓ Filing footnotes — Stock Option (right to buy) (Direct) The options are fully vested and exercisable. The terms of the underlying option grant are as previously reported on the Reporting Person's Form 3 filed on November 5, 2025.	Stock Option (right to buy)	1,354	$30.78	$41,676	61,174
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Convert↑ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,354	$30.78	$41,676	212,000
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	1,355	$125.00	$169,375	205,354
2026-07-09	Sakakibara Shan Riku	Chief Product Officer	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.	Class A Common Stock	174	$125.00	$21,750	207,826
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.050 to $119.020 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	412	$118.49	$48,817	5,838
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.305 to $120.2725 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	591	$119.67	$70,728	179,625
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	50	$124.74	$6,237	181,250
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.390 to $122.230 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,115	$121.84	$135,848	18,348
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.380 to $121.020 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	444	$120.69	$53,585	179,181
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.305 to $120.2725 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	591	$119.67	$70,728	185,875
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.725 to $123.720 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	2,324	$123.25	$286,426	176,271
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.225 to $121.160 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,828	$120.66	$220,567	19,463
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $119.055 to $119.970 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,138	$119.36	$135,837	4,700
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.475 to $124.455 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	5,253	$123.81	$650,371	6,872
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.465 to $123.450 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	1,945	$123.07	$239,373	1,836
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.380 to $121.020 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	444	$120.69	$53,585	185,431
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Direct) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.535 to $124.735 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	Class A Common Stock	622	$124.61	$77,510	6,250
2026-07-06	Atay Oguzhan	Director, See Remarks	Sell↓ Filing footnotes — Class A Common Stock (Indirect) The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.250 to $119.240 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Represents shares held by the Reporting Person's spouse.	Class A Common Stock (I)	1,034	$118.81	$122,847	180,216

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 409 transactions

Key facts CIK 2070849 CUSIP 090168105 13F (30d) 10 filings 8 filers Visit website Investor relations