Fesko John

PRESIDENT, CHIEF BUS. OFFICER

Fesko John has filed 15 SEC Form 4 filings (23 transaction rows) across 1 company, with disclosures dating back to 2025. 15 of those filings fall inside the rolling window. Most recent filing: Aug 29, 2026.

On the most recent filing, Fesko John is listed as PRESIDENT, CHIEF BUS. OFFICER at Natera, Inc. Inside the rolling window, Fesko John reported no open-market purchases and 16 open-market sales totaling $9.3M in NTRA. The largest disclosed transaction in the window is a sale of 17,806 NTRA shares on Jan 20, 2026, worth $4.2M.

Companies traded

Other insiders at NTRA

Insider Buying

$0

reported purchases (SEC code P)

Insider Selling

$9.3M

reported sales (SEC code S)

Companies

1

in the rolling window

Source
NTRASale$2.1MAug 29SEC ↗
NTRASale$79KAug 6SEC ↗
NTRASale$204KJul 30SEC ↗
NTRASale$237KJul 30SEC ↗
NTRASale$292KMay 29SEC ↗
NTRASale$60KMay 6SEC ↗
NTRASale$345KApr 30SEC ↗
NTRASale$144KMar 11SEC ↗
NTRASale$830KFeb 4SEC ↗
NTRASale$189KJan 29SEC ↗
NTRASale$221KJan 29SEC ↗
NTRASale$4.2MJan 22SEC ↗
NTRASale$80KJan 22SEC ↗
NTRASale$150KOct 29SEC ↗
NTRASale$178KOct 29SEC ↗
NTRASale$64KOct 22SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Fesko John made?

Fesko John has filed 15 SEC Form 4 filings (23 transaction rows) across 1 company since 2025.

Which companies does Fesko John trade?

Fesko John has filed SEC Form 4 disclosures for 1 company, including NTRA.

When was Fesko John's most recent SEC Form 4 filing?

Fesko John's most recent SEC Form 4 filing on Tracefour is dated Aug 29, 2026.

What is Fesko John's job title?

On the most recent SEC Form 4 filings tracked by Tracefour, Fesko John is listed as PRESIDENT, CHIEF BUS. OFFICER.

What is Fesko John's total buy and sell value in the current window?

Inside the rolling retention window, Fesko John bought $0 and sold $9.3M based on SEC Form 4 filings.

What was Fesko John's largest disclosed transaction?

The largest disclosed transaction in the current window is a sale of 17,806 NTRA shares on 2026-01-20, worth $4.2M, per SEC Form 4 filings.