BLLN shareholder files notice to sell Class A shares

Nancy J. Johnson submitted a Form 144 in connection with potential sales of BLLN Class A shares through Fidelity Brokerage Services LLC, with trading on NASDAQ.

Rhea-AI Filing Summary

Nancy J. Johnson submitted a Form 144 in connection with potential sales of BLLN Class A shares through Fidelity Brokerage Services LLC, with trading on NASDAQ. She previously acquired Pre-IPO Class A shares from the issuer for cash on several dates between July 2020 and December 2021.

Within the past three months, Johnson sold 3,418 Class A shares on June 8, 2026 for $339,347.28, 10,582 shares on June 9, 2026 for $1,063,192.55, and 801 shares on July 1, 2026 for $100,055.90.

Key Figures

Shares sold June 8, 2026: 3,418 shares Shares sold June 9, 2026: 10,582 shares Shares sold July 1, 2026: 801 shares +2 more

5 metrics

Shares sold June 8, 2026 3,418 shares Class A shares sold by Nancy J. Johnson for $339,347.28

Shares sold June 9, 2026 10,582 shares Class A shares sold by Nancy J. Johnson for $1,063,192.55

Shares sold July 1, 2026 801 shares Class A shares sold by Nancy J. Johnson for $100,055.90

Pre-IPO shares acquired July 3, 2020 1,599 shares Class A Pre-IPO shares acquired from the issuer for cash

Pre-IPO shares acquired October 1, 2020 4,000 shares Class A Pre-IPO shares acquired from the issuer for cash

Key Terms

Form 144, Pre-IPO Shares, Fidelity Brokerage Services LLC, NASDAQ

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Pre-IPO Shares financial

"Class A | 07/03/2020 | Pre-IPO Shares | Issuer"

Fidelity Brokerage Services LLC financial

"Class A | Fidelity Brokerage Services LLC 900 Salem Street"

NASDAQ market

"41442834 | 07/16/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does BLLN’s Form 144 filing by Nancy J. Johnson disclose?

It discloses a Form 144 notice for potential sales of BLLN Class A shares by Nancy J. Johnson, including her prior Pre-IPO acquisitions from the issuer and detailed information on three recent sales with specific share counts and dollar proceeds in June and July 2026.

How many BLLN Class A shares did Nancy J. Johnson sell on June 8, 2026?

On June 8, 2026, Nancy J. Johnson sold 3,418 BLLN Class A shares. The Form 144 information shows these shares generated $339,347.28 in proceeds, providing investors with transparency into both the trading volume and the approximate value of this particular transaction.

What were Nancy J. Johnson’s BLLN Class A share sales on June 9, 2026?

On June 9, 2026, Nancy J. Johnson sold 10,582 BLLN Class A shares. According to the Form 144 data, this sale produced $1,063,192.55 in proceeds, representing the largest of the three reported transactions over the recent three-month period.

What BLLN Class A transaction did Nancy J. Johnson report on July 1, 2026?

On July 1, 2026, Nancy J. Johnson sold 801 BLLN Class A shares. The filing indicates these shares yielded $100,055.90 in proceeds, rounding out the series of three reported Class A sales during the prior three months covered in the Form 144 disclosure.

What Pre-IPO BLLN Class A shares did Nancy J. Johnson acquire before listing?

Nancy J. Johnson acquired BLLN Pre-IPO Class A shares directly from the issuer for cash on several dates: 1,599 shares on July 3, 2020; 4,000 on October 1, 2020; 1,500 on January 6, 2021; 4,000 on July 7, 2021; and 3,100 on December 29, 2021.

Through which broker and market are BLLN Class A shares associated in this Form 144?

The Form 144 links the BLLN Class A shares to Fidelity Brokerage Services LLC as broker, with trading on NASDAQ. This indicates the brokerage firm handling the transactions and the exchange where the Class A shares are listed for trading.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/16/2026 - 04:25 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002087387
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	BillionToOne, Inc.
SEC File Number	001-42934
Address of Issuer	1035 O'BRIEN DRIVE MENLO PARK CALIFORNIA 94025
Phone	650-460-2551
Name of Person for Whose Account the Securities are To Be Sold	Johnson Nancy JoAnn
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	14199	1821628.48	41442834	07/16/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	07/03/2020	Pre-IPO Shares	Issuer			1599	07/03/2020	Cash
Class A	10/01/2020	Pre-IPO Shares	Issuer			4000	10/01/2020	Cash
Class A	01/06/2021	Pre-IPO Shares	Issuer			1500	01/06/2021	Cash
Class A	07/07/2021	Pre-IPO Shares	Issuer			4000	07/07/2021	Cash
Class A	12/29/2021	Pre-IPO Shares	Issuer			3100	12/29/2021	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Nancy J. Johnson 1035 O'Brien Drive Menlo Park CA 94025	Class A	06/08/2026	3418	339347.28
Nancy J. Johnson 1035 O'Brien Drive Menlo Park CA 94025	Class A	06/09/2026	10582	1063192.55
Nancy J. Johnson 1035 O'Brien Drive Menlo Park CA 94025	Class A	07/01/2026	801	100055.90

144: Remarks and Signature

Remarks
Date of Notice	07/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/06/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Nancy J. Johnson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)