BillionToOne, Inc. filings document the regulatory record for a public molecular diagnostics company commercializing QCT-based prenatal and oncology testing. Recent Form 8-K disclosures furnish operating results, financial guidance, Regulation FD presentation materials and executive compensation arrangements, including the company’s annual incentive plan and equity-based payment provisions.
Proxy materials describe annual meeting mechanics, stockholder voting matters, board governance and related governance disclosures. Together, the filings address the company’s clinical testing revenue categories, Class A common stock compensation framework, furnished earnings materials and governance matters relevant to its Nasdaq-listed operating-company status.
BillionToOne, Inc. officer Nancy JoAnn Johnson reported an open-market sale of 801 shares of Class A Common Stock at a weighted average price of $124.9137 per share. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on March 6, 2026, indicating it was scheduled in advance. Following this transaction, she directly holds 21,099 shares, so the sale represents a small portion of her reported stake.
BLLN submitted a Form 144 notice reporting proposed sales of Class A shares. The filing lists a proposed sale of 12,500 Class A Pre-IPO shares (cash) dated 05/01/2024 and discloses recent sales by named holders in June 2026.
The excerpt includes sales during the past three months: 12,500 shares by Ezgi N. Akcinar Atay, 26,250 shares by Oguzhan Atay, and 2,500 shares by Atay 2021 Dynasty Trust, each with corresponding proceeds shown.
BLLN insiders submitted Rule 144 notices for sales of Class A shares. The filing lists a planned sale of 26,250 shares with a figure of $3,150,000.00 and an associated date of 07/06/2026. The excerpt also discloses recent sales in the past three months: 26,250 shares for $2,563,632.00 by Oguzhan Atay, 12,500 shares for $1,227,812.50 by Ezgi N. Akcinar Atay, and 2,500 shares for $245,562.50 by Atay 2021 Dynasty Trust.
Blln, Inc. notice of proposed resale under Rule 144 for Class A shares by affiliated holders. The excerpt lists recent or proposed sales including 2,500 Class A shares sold by Atay 2021 Dynasty Trust on 06/08/2026 for $245,562.50, 26,250 Class A shares sold by Oguzhan Atay on 06/08/2026 for $2,563,632.00, and 12,500 Class A shares sold by Ezgi N. Akcinar Atay on 06/08/2026 for $1,227,812.50.
BillionToOne, Inc. senior vice president of laboratory operations John Roderick ten Bosch reported an open-market sale of 1,416 shares of Class A Common Stock at $120.00 per share. The transaction occurred on June 29, 2026 under a pre-arranged Rule 10b5-1 trading plan adopted on March 6, 2026, and he continues to hold 33,552 shares directly after the sale.
Nancy J. Johnson reported sales of Class A shares under Rule 144. The filing lists two transactions: 3,418 shares sold on 06/08/2026 for $339,347.28 and 10,582 shares sold on 06/09/2026 for $1,063,192.55. The notice also references 801 Class A pre-IPO shares dated 07/03/2020.
BillionToOne, Inc. has entered into a long-term lease for approximately 62,659 square feet of office and laboratory space at 3260 Whipple Road in Union City, California. The new facility is intended to provide additional laboratory capacity as test volumes have exceeded the company’s plan over the last year.
The space will be dedicated to oncology products and will more than triple the company’s oncology-dedicated laboratory space, expanding total facility space by about 16%. The lease is expected to commence on or about August 1, 2027, has an initial 12-year term, and includes a 10-year extension option at then-prevailing market rates.
Aggregate base rent over the 12-year term is approximately $46.7 million. The landlord will provide an initial 12-month rent abatement and a tenant improvement allowance of up to $12.5 million, and BillionToOne will pay a security deposit of $407,910, plus its pro rata share of operating expenses, taxes, assessments and fees.
BLLN insider sale notice filed under Rule 144. The filing lists a proposed or reported sale of 2,832 Class A shares by John R. Ten Bosch with a transaction date of 06/15/2026 and proceeds shown as $287,363.04. The shares are labeled Pre IPO Shares with an original date of 12/31/2021.
BillionToOne, Inc. Chief Product Officer Sakakibara Shan Riku reported a mix of stock sales and an option exercise in Class A Common Stock. The insider sold a total of 8,000 shares in open-market transactions at $110.00 per share.
On the same date, the insider also exercised stock options to acquire 4,000 shares of Class A Common Stock at an exercise price of $8.65 per share. The filing notes these transactions were carried out under a pre-arranged Rule 10b5-1 trading plan, indicating they were scheduled in advance rather than timed discretionarily.
BLLN reported an insider sale. Shan Sakakibara sold 8,000 Class A shares on 06/08/2026 for $785,800, according to the filing. The filing also lists prior and recent option-related entries showing Class A shares tied to a stock option exercise and pre-IPO holdings.