Skip to content
sellModerate cluster of 710b5-1 plan

Steven Leonard Chapman sold $1.0M of NTRA

CEO AND PRESIDENT at Natera, Inc.. 4,400 shares at an average of $238.07, traded Dec 1, 2025, filed Dec 3, 2025.

Warning score
45
Value
$1.0M
4,400 shares
Holdings after
140,416
-3% from before
From 52-week low
+77%
low $132.23, close $234.25
From 52-week high
-2%
high $238.81, as of Dec 1, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.0M at market
    +25
  • Share of holdings sold
    Sold 3.0% of holdings
    0
  • Cluster
    7 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -3.9%, 3m -14.8%, 6m -11.1%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

NTRAOct 13, 2026 · close 395.65
Since filing Dec 3, 2025: +66.1%SPY +15.0% · excess +51.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001711968-25-000013, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 1, 2025SOpen-market sale
Common Stock10b5-1
-1,394$237.05$330k143,422Dec 3, 2025
Dec 1, 2025SOpen-market sale
Common Stock10b5-1
-2,050$238.13$488k141,372Dec 3, 2025
Dec 1, 2025SOpen-market sale
Common Stock10b5-1
-956$239.44$229k140,416Dec 3, 2025

Related signals

Other insiders at Natera, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
NTRAsell 310b5-1
Natera, Inc.
Steven Leonard Chapman
CEO AND PRESIDENT
$526k
1,273 shares
-1%
40Moderate
NTRAsell 310b5-1
Natera, Inc.
Solomon Moshkevich
PRESIDENT, CLINICALDIAGNOSTICS
$1.2M
3,000 shares
-3%
55Moderate
NTRAsell 410b5-1
Natera, Inc.
Jonathan Sheena
director, other
$7.0M
18,064 shares
-100%
35Weak
NTRAsell 410b5-1
Natera, Inc.
Jonathan Sheena
director, other
$3.2M
9,150 shares
-4%
40Moderate
NTRAsell 410b5-1
Natera, Inc.
Matthew Rabinowitz
EXECUTIVE CHAIRMAN
$35M
102,000 shares
-5%
40Moderate
NTRAsell 410b5-1
Natera, Inc.
Matthew Rabinowitz
EXECUTIVE CHAIRMAN
$16M
50,000 shares
-2%
39Weak
NTRAsell 410b5-1
Natera, Inc.
Steven Leonard Chapman
CEO AND PRESIDENT
$545k
1,698 shares
-2%
45Moderate
NTRAsell 410b5-1
Natera, Inc.
Solomon Moshkevich
PRESIDENT, CLINICALDIAGNOSTICS
$5.9M
18,160 shares
-14%
40Moderate
NTRAsell 710b5-1
Natera, Inc.
John Fesko
PRESIDENT, CHIEF BUS. OFFICER
$2.1M
6,517 shares
-3%
35Weak
NTRAsell 710b5-1
Natera, Inc.
Jonathan Sheena
director, other
$2.0M
6,000 shares
-3%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Steven Leonard Chapman sold $1.0M of NTRA | InsiderTell