InsiderTrades

Form 4 for BLLN BillionToOne, Inc.

Accepted 2025-11-10 00:00:00 ET · period of report 2025-11-06 · accession 0001193125-25-274956 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DI 2025-11-10 2025-11-07 BLLN Rai Akshay Dir C - Cnv Deriv — +1.78M 1.78M New —
D 2025-11-10 2025-11-07 BLLN Rai Akshay Dir C - Cnv Deriv — +2,676 11.0K +32% —
DM 2025-11-10 2025-11-07 BLLN Rai Akshay Dir J - Other — 0 11.0K New —
DMI 2025-11-10 2025-11-07 BLLN Rai Akshay Dir J - Other — 0 1.78M New —
D 2025-11-10 2025-11-06 BLLN Rai Akshay Dir A - Grant $0.00 +8,333 8,333 New $0
D 2025-11-10 2025-11-07 BLLN Rai Akshay Dir C - Cnv Deriv — -2,676 0 -100% —
DI 2025-11-10 2025-11-07 BLLN Rai Akshay Dir C - Cnv Deriv — -1.78M 0 -100% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-11-07 C A 1,784,414 — 1,784,414 I See 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. (F4) The reported securities are directly held by Wipro Enterprises Private Limited (Wipro), of which Mr. Rai is the nominee/investor director appointed by Wipro Enterprises Limited. Mr. Rai will not have voting or dispositive control of these securities while such securities are held by Wipro and thus disclaims beneficial ownership of such securities.
2 Common Common Stock 2025-11-07 C A 2,676 — 11,009 D See 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. (F4) The reported securities are directly held by Wipro Enterprises Private Limited (Wipro), of which Mr. Rai is the nominee/investor director appointed by Wipro Enterprises Limited. Mr. Rai will not have voting or dispositive control of these securities while such securities are held by Wipro and thus disclaims beneficial ownership of such securities.
3 Common Common Stock 2025-11-07 J D 11,009 — 0 D — — (F5) 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.
4 Common Common Stock 2025-11-07 J D 1,784,414 — 0 I — — (F5) 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.
5 Common Common Stock 2025-11-06 A A 8,333 $0.00 8,333 D See 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. (F4) The reported securities are directly held by Wipro Enterprises Private Limited (Wipro), of which Mr. Rai is the nominee/investor director appointed by Wipro Enterprises Limited. Mr. Rai will not have voting or dispositive control of these securities while such securities are held by Wipro and thus disclaims beneficial ownership of such securities.
6 Common Class A Common Stock 2025-11-07 J A 1,784,414 — 1,784,414 I — — (F5) 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.
7 Common Class A Common Stock 2025-11-07 J A 11,009 — 11,009 D — — (F5) 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.
8 Derivative Series D Convertible Preferred Stock 2025-11-07 C D 2,676 — 0 D See Footnotes — · — to — 2,676 Common Stock (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. (F4) The reported securities are directly held by Wipro Enterprises Private Limited (Wipro), of which Mr. Rai is the nominee/investor director appointed by Wipro Enterprises Limited. Mr. Rai will not have voting or dispositive control of these securities while such securities are held by Wipro and thus disclaims beneficial ownership of such securities.
9 Derivative Series D Convertible Preferred Stock 2025-11-07 C D 1,784,414 — 0 I — · — to — 1,784,414 Common Stock (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.