SEC Form 4 · accession 0002070849-26-000036
BillionToOne, Inc. · BLLN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Nancy JoAnn Johnson
Officer — See Remarks
Period of report
Jun 8, 2026
Accepted (ET)
Jun 10, 2026 · 8:36 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0002070849
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF2 | Jun 8, 2026 | S | 2,918 | $99.0868 | D | 32,982 | D | |
| Class A Common StockF3 | Jun 8, 2026 | S | 300 | $100.05 | D | 32,682 | D | |
| Class A Common StockF4 | Jun 8, 2026 | S | 200 | $100.985 | D | 32,482 | D | |
| Class A Common StockF5 | Jun 9, 2026 | S | 4,666 | $99.2721 | D | 27,816 | D | |
| Class A Common StockF6 | Jun 9, 2026 | S | 2,700 | $101.3757 | D | 25,116 | D | |
| Class A Common StockF7 | Jun 9, 2026 | S | 1,816 | $102.3367 | D | 23,300 | D | |
| Class A Common StockF8 | Jun 9, 2026 | S | 1,400 | $100.3079 | D | 21,900 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The 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.
- F2The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.900 to $99.690 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.
- F3The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.960 to $100.220 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.
- F4The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.980 to $100.990 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.
- F5The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.900 to $99.870 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.
- F6The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.990 to $101.710 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.
- F7The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.990 to $102.570 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.
- F8The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.990 to $100.720 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.
Remarks
Senior Vice President of Sales and Commercial Operations