Natera: executive chairman Matthew Rabinowitz sold 50,000 shares

What happened

• Matthew Rabinowitz, executive chairman and director, exercised or converted options to acquire 50,000 shares at $10.41 per share on Oct 15, 2026 (cost $520,500) and sold 50,000 shares in multiple open-market transactions the same day for aggregate proceeds of $20,132,028. The filing also lists a derivative disposition of 50,000 shares at $0.00 (related to the exercise).

Key details

• Transaction date: Oct 15, 2026. Filing date: Oct 16, 2026. The filing does not indicate it was late.
• Exercise: 50,000 shares acquired at $10.41 per share for $520,500 (transaction code M). Sales: 50,000 shares disposed in multiple trades for total proceeds of $20,132,028 (transaction code S).
• Reported sale prices: sales occurred across price ranges; the filing reports weighted-average prices and provides per-trade price ranges in footnotes F2–F20.
• 10b5-1 plan: the sales were effected pursuant to a Rule 10b5-1 trading plan adopted Jun 12, 2026 (F1).
• option status: the option shares were fully exercisable (F21).
• shares owned after the transaction: not stated in the filing excerpt provided.

Why it may matter

• The filing shows an exercise of options followed by same-day sales of the resulting shares, consistent with a cashless exercise (exercise plus market sales).
• This filing does not show why the insider traded or why the company acted.