OA
Oguzhan Atay (See Remarks) filed 11 Form 4 reports in the trailing twelve months (0 purchases, 11 sales), most often in BillionToOne, Inc. (BLLN). The largest single filing was $5.9M of BLLN (43,009 sh across 11 lots, as filed), executed Aug 3. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
11
0 buys · 11 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$29.1M
shares × price, as filed
Last traded
Nov 2
Filed Nov 4
Median ADV $67.2M across their filed names
Open performance→Volume by month
Buys $0
Sells $29.1M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
11 filings
Sector per market data · by filing · past 12 months
Most traded names
BLLNRecent filings
BLLNSALE
BillionToOne, Inc.
View filing →
$1.5M12,148 sh across 3 lots
Exec Jul 9
Filed Jul 13 · 4:39 PM ET BLLNSALE BillionToOne, Inc. View filing → $4.1M
33,260 sh across 15 lots
Exec Jul 6
Filed Jul 8 · 7:06 PM ET BLLNSALE BillionToOne, Inc. View filing → $3.7M
38,115 sh across 8 lots
Exec Jun 8
Filed Jun 10 · 5:30 PM ET