Daily notes / October 17, 2026
Insider sales filed on October 17, 2026: 28 open-market sales, $26.0M
By OQRO's software, from the records of . Published . 2 min read.

The short answer
On October 17, 2026, insiders filed 28 open-market sales worth $26.0M in total, at 3 companies. The largest was Matthew Rabinowitz, EXECUTIVE CHAIRMAN at Natera (NTRA), $4.2M. Each line below links to the Form 4 as filed with the SEC.
How much did insiders sell on October 17, 2026?
Insiders filed 28 open-market sales with the SEC on October 17, 2026, worth $26.0M in total at price times shares as filed, by 3 people at 3 companies. The largest was Matthew Rabinowitz, EXECUTIVE CHAIRMAN at Natera, $4.2M. By sector, the filings came from Health Care (21), Industrials (7).
Which were the largest sales?
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $4.2M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $2.5M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $2.5M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $2.4M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Vyacheslav Kim, Director, sold $1.6M of Joint Stock Co Kaspi.Kz (KSPI), traded Oct 14, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $1.6M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $1.5M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $1.1M of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $816K of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Vyacheslav Kim, Director, sold $786K of Joint Stock Co Kaspi.Kz (KSPI), traded Oct 15, 2026: the Form 4
- Matthew Rabinowitz, EXECUTIVE CHAIRMAN, sold $753K of Natera (NTRA), traded Oct 15, 2026: the Form 4
- Vyacheslav Kim, Director, sold $715K of Joint Stock Co Kaspi.Kz (KSPI), traded Oct 16, 2026: the Form 4
The full list of the day, with every filing, is on the day page for Oct 17, 2026.
What this does not tell you
A Form 4 reports a transaction, not the reason for it. Many sales follow pre-arranged 10b5-1 plans or cover taxes on vested shares; the filing's footnotes say so when that is the case. The day is the filing date; the trade itself can be up to two business days earlier. This page lists what was filed on one day, with each record linked to its source. A filing does not say why it was made, and this is not investment advice.
Sources
No language model wrote this page: every figure is one of the day's records, linked to its filing. It describes what was filed, not why, and it is not investment advice. How OQRO treats data
Explore the data
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