Stocks · Health care · Services-Medical Laboratories

BillionToOne, Inc.

BLLN Clue Score76
United States Fiscal year ends December CIK 0002070849
98.09
+2.81%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
98.09 on 9 Oct 2026
150 107 64 Nov 2025 Apr 2026 Oct 2026 6 Nov 2025 $108.94 7 Nov 2025 $100.03 10 Nov 2025 $102.23 11 Nov 2025 $103.76 12 Nov 2025 $101.80 13 Nov 2025 $89.55 14 Nov 2025 $90.00 17 Nov 2025 $93.32 18 Nov 2025 $99.30 19 Nov 2025 $97.39 20 Nov 2025 $95.68 21 Nov 2025 $110.00 24 Nov 2025 $119.92 25 Nov 2025 $129.90 26 Nov 2025 $127.85 28 Nov 2025 $130.18 1 Dec 2025 $113.04 2 Dec 2025 $114.92 3 Dec 2025 $102.76 4 Dec 2025 $104.02 5 Dec 2025 $111.64 8 Dec 2025 $104.66 9 Dec 2025 $109.53 10 Dec 2025 $103.70 11 Dec 2025 $97.44 12 Dec 2025 $101.99 15 Dec 2025 $96.64 16 Dec 2025 $91.96 17 Dec 2025 $92.51 18 Dec 2025 $95.50 19 Dec 2025 $102.60 22 Dec 2025 $96.29 23 Dec 2025 $87.08 24 Dec 2025 $86.34 26 Dec 2025 $89.30 29 Dec 2025 $84.51 30 Dec 2025 $85.09 31 Dec 2025 $81.84 2 Jan 2026 $89.29 5 Jan 2026 $95.00 6 Jan 2026 $94.88 7 Jan 2026 $89.44 8 Jan 2026 $87.59 9 Jan 2026 $85.94 12 Jan 2026 $99.15 13 Jan 2026 $96.85 14 Jan 2026 $94.37 15 Jan 2026 $94.72 16 Jan 2026 $88.73 20 Jan 2026 $85.95 21 Jan 2026 $84.11 22 Jan 2026 $90.56 23 Jan 2026 $87.57 26 Jan 2026 $86.18 27 Jan 2026 $85.56 28 Jan 2026 $86.05 29 Jan 2026 $81.21 30 Jan 2026 $82.51 2 Feb 2026 $83.56 3 Feb 2026 $82.69 4 Feb 2026 $83.51 5 Feb 2026 $85.15 6 Feb 2026 $90.61 9 Feb 2026 $92.41 10 Feb 2026 $91.94 11 Feb 2026 $85.74 12 Feb 2026 $89.69 13 Feb 2026 $88.61 17 Feb 2026 $93.18 18 Feb 2026 $89.62 19 Feb 2026 $90.42 20 Feb 2026 $85.42 23 Feb 2026 $72.10 24 Feb 2026 $70.60 25 Feb 2026 $70.01 26 Feb 2026 $71.41 27 Feb 2026 $76.33 2 Mar 2026 $78.65 3 Mar 2026 $83.14 4 Mar 2026 $80.83 5 Mar 2026 $72.17 6 Mar 2026 $73.51 9 Mar 2026 $72.11 10 Mar 2026 $70.20 11 Mar 2026 $67.36 12 Mar 2026 $64.03 13 Mar 2026 $69.11 16 Mar 2026 $71.34 17 Mar 2026 $69.76 18 Mar 2026 $71.27 19 Mar 2026 $74.00 20 Mar 2026 $76.00 23 Mar 2026 $79.59 24 Mar 2026 $74.08 25 Mar 2026 $77.00 26 Mar 2026 $71.44 27 Mar 2026 $69.55 30 Mar 2026 $70.11 31 Mar 2026 $78.94 1 Apr 2026 $82.96 2 Apr 2026 $79.36 6 Apr 2026 $85.50 7 Apr 2026 $88.45 8 Apr 2026 $91.98 9 Apr 2026 $82.50 10 Apr 2026 $81.13 13 Apr 2026 $78.70 14 Apr 2026 $82.79 15 Apr 2026 $80.61 16 Apr 2026 $78.82 17 Apr 2026 $79.43 20 Apr 2026 $86.97 21 Apr 2026 $89.00 22 Apr 2026 $86.84 23 Apr 2026 $83.93 24 Apr 2026 $84.74 27 Apr 2026 $81.76 28 Apr 2026 $78.23 29 Apr 2026 $73.71 30 Apr 2026 $75.05 1 May 2026 $77.49 4 May 2026 $72.12 5 May 2026 $79.90 6 May 2026 $81.40 7 May 2026 $92.90 8 May 2026 $92.96 11 May 2026 $105.94 12 May 2026 $94.23 13 May 2026 $90.59 14 May 2026 $87.94 15 May 2026 $82.63 18 May 2026 $86.12 19 May 2026 $82.29 20 May 2026 $83.38 21 May 2026 $86.15 22 May 2026 $85.92 26 May 2026 $84.48 27 May 2026 $91.02 28 May 2026 $97.80 29 May 2026 $98.99 1 Jun 2026 $91.12 2 Jun 2026 $94.25 3 Jun 2026 $98.36 4 Jun 2026 $104.59 5 Jun 2026 $97.19 8 Jun 2026 $94.43 9 Jun 2026 $102.39 10 Jun 2026 $99.26 11 Jun 2026 $99.65 12 Jun 2026 $101.12 15 Jun 2026 $103.95 16 Jun 2026 $100.70 17 Jun 2026 $99.38 18 Jun 2026 $105.15 22 Jun 2026 $100.72 23 Jun 2026 $104.28 24 Jun 2026 $107.74 25 Jun 2026 $112.24 26 Jun 2026 $118.17 29 Jun 2026 $120.40 30 Jun 2026 $119.98 1 Jul 2026 $122.33 2 Jul 2026 $120.35 6 Jul 2026 $123.40 7 Jul 2026 $118.04 8 Jul 2026 $120.60 9 Jul 2026 $127.97 10 Jul 2026 $126.77 13 Jul 2026 $123.25 14 Jul 2026 $124.87 15 Jul 2026 $129.88 16 Jul 2026 $128.18 17 Jul 2026 $130.31 20 Jul 2026 $125.14 21 Jul 2026 $132.53 22 Jul 2026 $129.24 23 Jul 2026 $128.94 24 Jul 2026 $126.08 27 Jul 2026 $127.98 28 Jul 2026 $133.64 29 Jul 2026 $132.52 30 Jul 2026 $139.59 31 Jul 2026 $138.60 3 Aug 2026 $137.32 4 Aug 2026 $142.25 5 Aug 2026 $149.97 6 Aug 2026 $91.65 7 Aug 2026 $93.39 10 Aug 2026 $98.65 11 Aug 2026 $97.94 12 Aug 2026 $97.45 13 Aug 2026 $94.04 14 Aug 2026 $93.33 17 Aug 2026 $93.91 18 Aug 2026 $87.99 19 Aug 2026 $91.67 20 Aug 2026 $95.27 21 Aug 2026 $95.03 24 Aug 2026 $96.74 25 Aug 2026 $100.08 26 Aug 2026 $96.22 27 Aug 2026 $95.15 28 Aug 2026 $93.24 31 Aug 2026 $90.67 1 Sep 2026 $92.32 2 Sep 2026 $96.15 3 Sep 2026 $99.50 4 Sep 2026 $99.39 8 Sep 2026 $99.06 9 Sep 2026 $99.16 10 Sep 2026 $98.51 11 Sep 2026 $98.77 14 Sep 2026 $100.82 15 Sep 2026 $104.27 16 Sep 2026 $103.61 17 Sep 2026 $110.67 18 Sep 2026 $105.92 21 Sep 2026 $103.86 22 Sep 2026 $116.07 23 Sep 2026 $114.42 24 Sep 2026 $124.90 25 Sep 2026 $123.08 28 Sep 2026 $121.72 29 Sep 2026 $118.18 30 Sep 2026 $106.44 1 Oct 2026 $105.76 2 Oct 2026 $105.90 5 Oct 2026 $109.06 6 Oct 2026 $99.94 7 Oct 2026 $95.75 8 Oct 2026 $95.41 9 Oct 2026 $98.09 Lynch Thomas P. See Remarks Bought $6.00K 7 Nov 2025 · at $60.00 · 16.7% of stake ten Bosch John Roderick See Remarks Bought $48.00K 7 Nov 2025 · at $60.00 · 2.2% of stake Tsao David Chief Technology Officer Bought $60.00K 7 Nov 2025 · at $60.00 Rai Akshay Director Bought $150.00K 7 Nov 2025 · at $60.00 · 22.7% of stake Johnson Nancy JoAnn See Remarks Bought $414.00K 7 Nov 2025 · at $60.00 · 23.8% of stake Bremner Thomas S Director Bought $2.50M 7 Nov 2025 · at $60.00 · 6.4% of stake Johnson Nancy JoAnn See Remarks Sold on a plan $339.35K 8 Jun 2026 · at $99.28 · 9.5% of stake Sakakibara Shan Riku Chief Product Officer Sold on a plan $785.80K 8 Jun 2026 · at $98.23 · 3.6% of stake Atay Oguzhan See Remarks Sold on a plan $1.23M 8 Jun 2026 · at $98.23 · 6.3% of stake Atay Oguzhan See Remarks Sold on a plan $2.56M 8 Jun 2026 · at $97.66 · 100% of stake Johnson Nancy JoAnn See Remarks Sold on a plan $1.06M 9 Jun 2026 · at $100.47 · 32.6% of stake ten Bosch John Roderick See Remarks Sold on a plan $287.36K 15 Jun 2026 · at $101.47 · 7.5% of stake Tsao David Chief Technology Officer Sold on a plan $2.05M 15 Jun 2026 · at $102.27 · 95.2% of stake Sakakibara Shan Riku Chief Product Officer Sold on a plan $880.00K 24 Jun 2026 · at $110.00 · 3.7% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $169.92K 29 Jun 2026 · at $120.00 · 4.0% of stake Johnson Nancy JoAnn See Remarks Sold on a plan $100.06K 1 Jul 2026 · at $124.91 · 3.7% of stake Atay Oguzhan Chairman and CEO Sold on a plan $1.53M 6 Jul 2026 · at $122.05 · 6.7% of stake Atay Oguzhan Chairman and CEO Sold on a plan $3.20M 6 Jul 2026 · at $122.05 · 100% of stake Sakakibara Shan Riku Chief Product Officer Sold on a plan $1.00M 9 Jul 2026 · at $125.00 · 3.8% of stake Atay Oguzhan Chairman and CEO Sold on a plan $1.58M 9 Jul 2026 · at $126.10 · 100% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $533.33K 13 Jul 2026 · at $125.46 · 12.7% of stake Tsao David Chief Technology Officer Sold on a plan $2.50M 13 Jul 2026 · at $124.88 · 95.2% of stake Johnson Nancy JoAnn See Remarks Sold on a plan $1.82M 16 Jul 2026 · at $128.29 · 67.3% of stake Sakakibara Shan Riku Chief Product Officer Sold on a plan $560.84K 31 Jul 2026 · at $140.21 · 2.0% of stake Atay Oguzhan Chairman and CEO Sold on a plan $1.72M 3 Aug 2026 · at $137.37 · 7.1% of stake Atay Oguzhan Chairman and CEO Sold on a plan $4.45M 3 Aug 2026 · at $136.95 · 100% of stake Atay Oguzhan Chairman and CEO Sold on a plan $2.33M 5 Aug 2026 · at $150.03 · 100% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $131.58K 10 Aug 2026 · at $92.86 · 4.8% of stake Tsao David Chief Technology Officer Sold on a plan $928.60K 10 Aug 2026 · at $92.86 · 90.9% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $141.70K 25 Aug 2026 · at $100.00 · 5.1% of stake Tsao David Chief Technology Officer Sold on a plan $1.00M 25 Aug 2026 · at $100.00 · 90.9% of stake Lynch Thomas P. See Remarks Sold on a plan $2.00M 8 Sep 2026 · at $99.99 · 96.6% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $138.12K 9 Sep 2026 · at $97.54 · 5.4% of stake Tsao David Chief Technology Officer Sold on a plan $1.98M 9 Sep 2026 · at $98.77 · 95.2% of stake Atay Oguzhan Chairman and CEO Sold on a plan $522.54K 14 Sep 2026 · at $98.00 · 3.3% of stake Atay Oguzhan Chairman and CEO Sold on a plan $2.51M 14 Sep 2026 · at $100.32 · 100% of stake Lynch Thomas P. See Remarks Sold on a plan $3.87M 17 Sep 2026 · at $110.33 · 98.0% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $150.96K 21 Sep 2026 · at $106.61 · 5.7% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $169.92K 24 Sep 2026 · at $120.00 · 6.0% of stake Tsao David Chief Technology Officer Sold on a plan $416.63K 24 Sep 2026 · at $125.00 · 76.9% of stake Atay Oguzhan Chairman and CEO Sold on a plan $321.63K 28 Sep 2026 · at $120.64 · 1.7% of stake Atay Oguzhan Chairman and CEO Sold on a plan $1.01M 28 Sep 2026 · at $120.64 · 100% of stake ten Bosch John Roderick SVP of Laboratory Operations Sold on a plan $298.00K 5 Oct 2026 · at $105.15 · 12.8% of stake Tsao David Chief Technology Officer Sold on a plan $2.16M 5 Oct 2026 · at $108.15 · 95.2% of stake
6 buys0 sales at will38 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$305.11M
Net income
$7.45M
Free cash flow
$15.71M
Gross margin
68.3%
Operating margin
5.3%
Net margin
2.4%
Return on equity
1.6%
Return on capital
2.9%
Debt to equity
0.12
Revenue growth, 1 yr
100.0%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
72M -83M FY23 Fiscal year 2023 Revenue $71.73M Net income $82.68M Margin -115.3% 153M -42M FY24 Fiscal year 2024 Revenue $152.58M Net income $41.57M Margin -27.2% · growth +112.7% 305M 7M FY25 Fiscal year 2025 Revenue $305.11M Net income $7.45M Margin 2.4% · growth +100.0%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
5 Oct 2026 Tsao David
Chief Technology Officer
Sold on a plan $2.16M 95.2%
5 Oct 2026 ten Bosch John Roderick
SVP of Laboratory Operations
Sold on a plan $298.00K 12.8%
28 Sep 2026 Atay Oguzhan
Chairman and CEO
Sold on a plan $1.01M 100%
28 Sep 2026 Atay Oguzhan
Chairman and CEO
Sold on a plan $321.63K 1.7%
24 Sep 2026 Tsao David
Chief Technology Officer
Sold on a plan $416.63K 76.9%
24 Sep 2026 ten Bosch John Roderick
SVP of Laboratory Operations
Sold on a plan $169.92K 6.0%