Natera Officer Files Form 144 to Sell $831K in Common Stock Under Rule 10b5-1

Transaction Summary

Michael Brophy, an Officer of Natera, Inc. ($NTRA), filed a Form 144 notice of proposed sale covering 1,906 shares of common stock with an aggregate market value of approximately $831,016. The proposed sale is scheduled to occur on or around October 30, 2026, through Morgan Stanley Smith Barney LLC on the NASDAQ.

Origin and Plan Details

The 1,906 shares were recently acquired on October 27, 2026, via restricted stock unit (RSU) vesting from the issuer. The sale is being executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on September 10, 2025.

Recent Trading Activity

In the preceding three months, the reporting person executed several sales totaling 3,952 shares for gross proceeds of approximately $1.55 million, including:

• 10/28/2026: 1,198 shares ($510,755.80) and 1,178 shares ($502,371.65)
• 10/27/2026: 781 shares ($317,086.00)
• 08/04/2026: 478 shares ($131,077.16)
• 07/31/2026: 317 shares ($84,952.61)

Market Context & Significance

With 144,144,170 shares outstanding, this proposed sale represents a negligible fraction of Natera's total equity (<0.01%). Given that the shares stem from RSU settlement and are executed under a pre-established 10b5-1 plan, this transaction carries low trading significance.