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Lynch Thomas P.'s Form 4 filing

BillionToOne, Inc. (BLLN) · filed Nov 12, 2025

Accession no.
0001193125-25-278144
Filed
Nov 12, 2025
Trade date
Nov 7, 2025
Filing delay
5 days
Rule 10b5-1 plan
Not checked

This filing lists 3 non-derivative transactions and 8 derivative transactions. Open-market purchases total $6.00K. It was filed 5 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Lynch Thomas P.CIK 0001659824Officer (See Remarks)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Nov 7, 2025Common StockJOtherDisposed−600–F1–0Direct
Nov 7, 2025Class A Common StockJOtherAcquired+600–F1–600Direct
Nov 7, 2025Class A Common StockPPurchaseAcquired+100$60.00+$6,000700Direct

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Nov 7, 2025Common StockJOtherDisposed−79,400–F1–0Direct
Nov 7, 2025Class A Common StockJOtherAcquired+79,400–F1–79,400Direct
Nov 7, 2025Common StockJOtherDisposed−15,000–F1–0Direct
Nov 7, 2025Class A Common StockJOtherAcquired+15,000–F1–15,000Direct
Nov 7, 2025Common StockJOtherDisposed−10,000–F1–0Direct
Nov 7, 2025Class A Common StockJOtherAcquired+10,000–F1–10,000Direct
Nov 7, 2025Common StockJOtherDisposed−40,000–F1–0Direct
Nov 7, 2025Class A Common StockJOtherAcquired+40,000–F1–40,000Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F1

Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock (the "Offering").

Referenced by the price of 2 transactions in Table I and 8 transactions in Table II.

Remarks

General Counsel, Chief Compliance Officer and Secretary

Read the full filing on SEC EDGAR (opens in a new tab)