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 →
$1.6M3,780 sh across 2 lots
Exec Nov 2
Filed Nov 4 · 9:35 PM ET NTRASALE Natera, Inc. View filing → $2.4M
5,694 sh across 2 lots
Exec Oct 27
Filed Oct 29 · 9:35 PM ET NTRASALE Natera, Inc. View filing → $526K
1,273 sh × $413.31
Exec Oct 1
Filed Oct 2 · 9:35 PM ET NTRASALE Natera, Inc. View filing → $545K
1,698 sh × $320.99
Exec Sep 1
Filed Sep 3 · 9:05 PM ET NTRASALE Natera, Inc. View filing → $659K
2,470 sh across 3 lots
Exec Aug 3
Filed Aug 5 · 9:35 PM ET NTRASALE Natera, Inc. View filing → $1.5M
5,770 sh across 2 lots
Exec Jul 27
Filed Jul 29 · 9:35 PM ET NTRASALE Natera, Inc. View filing → $9.1M
41,124 sh across 14 lots
Exec Jun 4
Filed Jun 5 · 5:30 PM ET NTRASALE Natera, Inc. View filing → $186K
902 sh × $206.16
Exec May 1
Filed May 5 · 5:30 PM ET More filings →