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Insider

Steven Leonard Chapman

CEO AND PRESIDENT

Steven Leonard Chapman (CEO AND PRESIDENT) filed 17 Form 4 reports in the trailing twelve months (0 purchases, 17 sales), most often in Natera, Inc. (NTRA). The largest single filing was $32.1M of NTRA (160,703 sh across 3 lots, as filed), executed Nov 3 2025.

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Return, 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
17
0 buys · 17 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$93.6M
shares × price, as filed
Last traded
Sep 1
Filed Sep 3

Median ADV $454.8M across their filed names

Open performance
Volume by month
$32.1M$16.1M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $1.4MNov 2024 · sells $559KJan 2025 · sells $15.2MMar 2025 · sells $13.5MApr 2025 · sells $4.7MMay 2025 · sells $1.0MJun 2025 · sells $960KJul 2025 · sells $1.9MAug 2025 · sells $772KSep 2025 · sells $846KOct 2025 · sells $5.1MNov 2025 · sells $32.1MDec 2025 · sells $1.0MJan 2026 · sells $19.6MFeb 2026 · sells $20.7MMar 2026 · sells $1.9MApr 2026 · sells $1.2MMay 2026 · sells $186KJun 2026 · sells $9.1MJul 2026 · sells $1.5MAug 2026 · sells $659KSep 2026 · sells $545K
Buys $0 Sells $134.5M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 17 filings

Sector per market data · by filing · past 12 months

Most traded names
NTRA Natera, Inc. NTRA · 0 buys · 35 sells 35 filings
Recent filings
NTRASALE Natera, Inc. View filing → $20.7M
89,924 sh across 6 lots
Exec Feb 2
Filed Feb 4 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $1.4M
5,970 sh across 2 lots
Exec Jan 27
Filed Jan 29 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $17.3M
73,522 sh across 2 lots
Exec Jan 20
Filed Jan 22 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $881K
3,848 sh across 2 lots
Exec Jan 2
Filed Jan 6 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $1.0M
4,400 sh across 3 lots
Exec Dec 1 2025
Filed Dec 3 2025 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $32.1M
160,703 sh across 3 lots
Exec Nov 3 2025
Filed Nov 3 2025 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $1.2M
6,015 sh across 2 lots
Exec Oct 27 2025
Filed Oct 29 2025 · 5:30 PM ET
NTRASALE Natera, Inc. View filing → $301K
1,603 sh × $187.95
Exec Oct 21 2025
Filed Oct 22 2025 · 5:30 PM ET
More filings →