Key facts
- This page summarizes Krishna Kittu Kolluri's Form 4 filing for BillionToOne, Inc..
- 19 reported transactions and 7 derivative rows are listed below.
- Accepted by SEC: 10 Nov 2025, 21:42.
Krishna Kittu Kolluri - 06 Nov 2025 Form 4 Insider Report for BillionToOne, Inc.
- Reporting relationship
- Director, 10%+ Owner
- Issuer ticker
- BLLN on Nasdaq
- Reported as of
- 06 Nov 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 10 Nov 2025, 21:42:31 UTC
- Prior SEC filing
- 05 Nov 2025
- Next SEC filing
- 13 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Thomas P. Lynch, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Krishna Kittu Kolluri filed Form 4 for BillionToOne, Inc. on 10 Nov 2025.
Change
- Previous filing in this sequence was filed on 05 Nov 2025.
- 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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
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
- 10 Nov 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BLLN
transaction
Common Stock
Award
- Transaction value
- $0
- Shares
- +8,333
- Change %
- Price
- $0.000000
- Shares after
- 8,333
- Date
- 06 Nov 2025
- Ownership
- Direct
- Footnotes
- F1
BLLN
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,177,800
- Change %
- +982%
- Price
- Shares after
- 1,297,799
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F2, F3, F4
BLLN
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +242,216
- Change %
- Price
- Shares after
- 242,216
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F2, F3, F5
BLLN
transaction
Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +2,819,490
- Change %
- Price
- Shares after
- 2,819,490
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Footnotes
- F2, F3, F6, F7
BLLN
transaction
Common Stock
Other
- Transaction value
- Shares
- -8,333
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- Direct
- Footnotes
- F8
BLLN
transaction
Common Stock
Other
- Transaction value
- Shares
- -1,297,799
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F4, F8
BLLN
transaction
Common Stock
Other
- Transaction value
- Shares
- -242,216
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F5, F8
BLLN
transaction
Common Stock
Other
- Transaction value
- Shares
- -2,819,490
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Footnotes
- F6, F7, F8
BLLN
transaction
Class A Common Stock
Other
- Transaction value
- Shares
- +8,333
- Change %
- Price
- Shares after
- 8,333
- Date
- 07 Nov 2025
- Ownership
- Direct
- Footnotes
- F8
BLLN
transaction
Class A Common Stock
Other
- Transaction value
- Shares
- +1,297,799
- Change %
- Price
- Shares after
- 1,297,799
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F4, F8
BLLN
transaction
Class A Common Stock
Other
- Transaction value
- Shares
- +242,216
- Change %
- Price
- Shares after
- 242,216
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Footnotes
- F5, F8
BLLN
transaction
Class A Common Stock
Other
- Transaction value
- Shares
- +2,819,490
- Change %
- Price
- Shares after
- 2,819,490
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Footnotes
- F6, F7, F8
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BLLN
transaction
Derivative
Series B-1 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,177,800
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Underlying class
- Common Stock
- Underlying amount
- 1,177,800
- Exercise price
- Footnotes
- F3, F4
BLLN
transaction
Derivative
Series C Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -242,216
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnote
- Underlying class
- Common Stock
- Underlying amount
- 242,216
- Exercise price
- Footnotes
- F3, F5
BLLN
transaction
Derivative
Series A-1 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -16,746
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 16,746
- Exercise price
- Footnotes
- F3, F6, F9
BLLN
transaction
Derivative
Series A-3 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -19,985
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 19,985
- Exercise price
- Footnotes
- F3, F6, F10
BLLN
transaction
Derivative
Series A-6 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -2,318,482
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 2,318,482
- Exercise price
- Footnotes
- F3, F6, F11
BLLN
transaction
Derivative
Series B-2 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -320,363
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 320,363
- Exercise price
- Footnotes
- F3, F6, F12
BLLN
transaction
Derivative
Series C-1 Convertible Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -143,914
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 143,914
- Exercise price
- Footnotes
- F3, F6, F13
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 13 footnotes
Footnote F1
Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest over three years in equal annual installments on the anniversary of November 6, 2025, subject to the Reporting Person's continuous service to the Issuer through each such vesting date.
Footnote F2
The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock, Series A-3 Convertible Preferred Stock, Series A-6 Convertible Preferred Stock, Series B-1 Convertible Preferred Stock, Series B-2 Convertible Preferred Stock, Series C Convertible Preferred Stock and/or Series C-1 Convertible Preferred Stock.
Footnote F3
The reported security converted into the Issuer's Common Stock on a one-for-one basis automatically immediately prior to the closing of the Issuer's initial public offering of Class A common stock (the "Offering") without payment of further consideration. The shares have no expiration date.
Footnote F4
The reported security is directly held by Neotribe Ignite Fund I, L.P. ("NTIF I"). Neotribe Ignite Partners I, LLC ("NTIP I") is the general partner of NTIF I. Krishna Kittu Kolluri ("Kolluri") is the managing member of NTIP I and therefore may be deemed to have voting and dispositive power over the shares held by NTIF I. Kolluri disclaims beneficial ownership of the shares held by NTIF I except to the extent of his pecuniary interest therein.
Footnote F5
The reported security is directly held by Neotribe SPV I BTO, LLC. ("NT SPV I"). Neotribe Partners SPV I BTO, LLC ("NTP SPV I") is the managing member of NT SPV I. Kolluri is the managing member of NTP SPV I and therefore may be deemed to have voting and dispositive power over the shares held by NT SPV I. Kolluri disclaims beneficial ownership of the shares held by NT SPV I except to the extent of his pecuniary interest therein.
Footnote F6
The reported security is directly held by NeoTribe Ventures I, L.P. ("NTV I"), for itself and as nominee for NeoTribe Associates I, L.P. ("NTA I"). NeoTribe Partners I, LLC ("NTP I") is the general partner of NTV I and NTA I. Kolluri is the managing member of NTP I and therefore may be deemed to hold voting and dispositive power over the shares held by NTV I and NTA I. Kolluri disclaims beneficial ownership of the shares held by NTV I and NTA I except to the extent of his pecuniary interest therein.
Footnote F7
Consists of 2,710,286 shares held of record by NTV I for itself and 109,204 shares held of record by NTV I as nominee for NTA I.
Footnote F8
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 Offering.
Footnote F9
Consists of 16,098 shares held of record by NTV I for itself and 648 shares held of record by NTV I as nominee for NTA I.
Footnote F10
Consists of 19,211 shares held of record by NTV I for itself and 774 shares held of record by NTV I as nominee for NTA I.
Footnote F11
Consists of 2,228,682 shares held of record by NTV I for itself and 89,800 shares held of record by NTV I as nominee for NTA I.
Footnote F12
Consists of 307,955 shares held of record by NTV I for itself and 12,408 shares held of record by NTV I as nominee for NTA I.
Footnote F13
Consists of 138,340 shares held of record by NTV I for itself and 5,574 shares held of record by NTV I as nominee for NTA I.
SEC remarks
This Form 4 is one of two Form 4s filed in respect of the conversion and reclassification of the shares held of record by NTIF I, NT SPV I and NTV I. The Reporting Person for the other Form 4 is NeoTribe Ventures I, L.P.