SC
Steven Leonard Chapman (CEO AND PRESIDENT) filed 16 Form 4 reports in the trailing twelve months (0 purchases, 16 sales), most often in Natera, Inc. (NTRA). The largest single filing was $20.7M of NTRA (89,924 sh across 6 lots, as filed), executed Feb 2. 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
16
0 buys · 16 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$60.8M
shares × price, as filed
Last traded
Nov 2
Filed Nov 4
Median ADV $454.8M across their filed names
Open performance→Volume by month
Buys $0
Sells $137.0M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
16 filings
Sector per market data · by filing · past 12 months
Most traded names
NTRARecent filings
NTRASALE
Natera, Inc.
View filing →
$807K4,843 sh across 3 lots
Exec Jul 1 2025
Filed Jul 3 2025 · 5:30 PM ET NTRASALE Natera, Inc. View filing → $960K
6,111 sh across 3 lots
Exec Jun 2 2025
Filed Jun 4 2025 · 5:30 PM ET NTRASALE Natera, Inc. View filing → $1.0M
6,980 sh across 4 lots
Exec May 1 2025
Filed May 2 2025 · 5:30 PM ET NTRASALE Natera, Inc. View filing → $944K
6,203 sh × $152.18
Exec Apr 28 2025
Filed Apr 30 2025 · 5:30 PM ET