Krishna Kittu Kolluri - 10 Jun 2026 Form 4 Insider Report for BillionToOne, Inc. (BLLN)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: BLLN
Reported as of: 10 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Jun 2026, 12:54:35 UTC
Prior SEC filing: 11 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Thomas P. Lynch, Attorney-in-Fact

Key filing fact

Krishna Kittu Kolluri filed Form 4 for BillionToOne, Inc. (BLLN) on 12 Jun 2026.

Key facts

This page summarizes Krishna Kittu Kolluri's Form 4 filing for BillionToOne, Inc. (BLLN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 12 Jun 2026, 12:54.

Change

Previous filing in this sequence was filed on 11 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001270521 Primary reporting owner

KOLLURI KRISHNA KITTU

Relationship: Director, 10%+ Owner
Address: 1300 EL CAMINO REAL, SUITE 100, MENLO PARK
Signature: /s/ Thomas P. Lynch, Attorney-in-Fact
Signature date: 11 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BLLN transaction

Class A Common Stock

Award

Transaction value
Shares: +3,017
Change %: +36%
Price: $0.000000^*
Shares after: 11,350
Date: 10 Jun 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The Reporting Person was granted restricted stock units (RSUs), which represent a contingent right to receive one share of Class A common stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the next annual meeting of stockholders, or (B) the one-year anniversary of June 10, 2026.