Arkolith/Insider Trading/BLLN/Form 4

Atay Oguzhan

Chairman and CEO, DirectorBillionToOne, Inc. (BLLN) · full profile →Form 4 · filed Jul 8, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$4.7M
Net Open-Market Flow
-$4.7M
Transactions
32
30 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jul 6, 2026Option exercise(M)20K$2.80$56K20K
Jul 6, 2026Option exercise(M)6K$2.80$18K26K
Jul 6, 2026Sell(S)1K$118.49$156K25K
Jul 6, 2026Sell(S)4K$119.36$434K21K
Jul 6, 2026Sell(S)2K$120.66$221K19K
Jul 6, 2026Sell(S)1K$121.84$136K18K
Jul 6, 2026Sell(S)6K$123.07$766K12K
Jul 6, 2026Sell(S)5K$123.81$650K7K
Jul 6, 2026Sell(S)622$124.61$78K6K
Jul 6, 2026Sell(S)412$118.49$49K6K
Jul 6, 2026Sell(S)1K$119.36$136K5K
Jul 6, 2026Sell(S)570$120.66$69K4K
Jul 6, 2026Sell(S)349$121.84$43K4K
Jul 6, 2026Sell(S)2K$123.07$239K2K
Jul 6, 2026Sell(S)2K$123.81$203K194
Jul 6, 2026Sell(S)194$124.61$24K0
Jul 6, 2026Sell(S)1K$118.81$123K186K
Jul 6, 2026Sell(S)591$119.67$71K186K
Jul 6, 2026Sell(S)444$120.69$54K185K
Jul 6, 2026Sell(S)587$122.08$72K185K
Jul 6, 2026Sell(S)2K$123.25$286K183K
Jul 6, 2026Sell(S)1K$124.04$151K181K
Jul 6, 2026Sell(S)50$124.74$6K181K
Jul 6, 2026Sell(S)1K$118.81$123K180K
Jul 6, 2026Sell(S)591$119.67$71K180K
Jul 6, 2026Sell(S)444$120.69$54K179K
Jul 6, 2026Sell(S)586$122.08$72K179K
Jul 6, 2026Sell(S)2K$123.25$286K176K
Jul 6, 2026Sell(S)1K$124.04$151K175K
Jul 6, 2026Sell(S)50$124.74$6K175K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jul 6, 2026Option exercise(M)20K$2.80$56K594K
Jul 6, 2026Option exercise(M)6K$2.80$18K588K

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0002088549-26-000004) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML