ATAY OGUZHAN

PrivateCIK: 2088549
Location

MENLO PARK, CA

ATAY OGUZHAN (See Remarks) reported 2 transactions at BILLIONTOONE, INC.

Review the transaction codes below to understand the nature of each event.

InsiderATAY OGUZHANCIK 2088549
IssuerBILLIONTOONE, INC.CIK 2070849
DirectorOfficer· See Remarks
Since Nov 2025
-20K
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
3
Total transactions
20K acquired · 40K disposed
Non-Derivative Transactions2

Class A Common Stock

Direct
C · Conversion

Shares

+20K

Price / share

Trade value

% of position

New position
9/8/2026
0.0020K

Class A Common Stock

Direct
G · Gift

Shares

20K

Price / share

Trade value

% of position

New position
9/9/2026
20K0.00
Total

Net shares

+0.00

Net value

$0.00

Derivative Transactions1

Class B Common Stock

Direct
C · Conversion
Converts to

Class A Common Stock

20K shares

Shares

20K

Strike price

Held after

2.20M

Exercisable

9/8/2026