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 | |||||||
|---|---|---|---|---|---|---|---|
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 6,517 | $2.1M | Aug 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 295 | $79K | Aug 6 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 782 | $204K | Jul 30 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 931 | $237K | Jul 30 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 1,438 | $292K | May 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 291 | $60K | May 6 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 1,688 | $345K | Apr 30 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 707 | $144K | Mar 11 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 3,594 | $830K | Feb 4 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 784 | $189K | Jan 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 928 | $221K | Jan 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 17,806 | $4.2M | Jan 22 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 339 | $80K | Jan 22 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 781 | $150K | Oct 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 928 | $178K | Oct 29 | SEC ↗ | |
| NTRA | PRESIDENT, CHIEF BUS. OFFICER | Sale | 339 | $64K | Oct 22 | SEC ↗ |
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.