Marcus Gail Boxer Insider Trading Activity

Corporate InsiderDirector · CIK 1702176

Total trades

$1.7M

Total volume

Nov 3, 2025

Last activity

NTRA

Natera, Inc.

Marcus Gail Boxer has been net-selling over the last 12 months with 0 purchases and 3 sales across 1 company.

NTRA is the most-traded position with 3 trades. The largest single transaction was a sale of NTRA for $174K on Aug 1, 2025.

Performance Scorecard

Forward stock performance after each transaction by Marcus Gail Boxer. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	-4.6%	57%	7
90 days	—	-15.0%	29%	7
120 days	—	-27.9%	0%	7

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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NTRA · Natera, Inc.

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
Nov 3, 2025	NTRA	Sell	122	$198.71	$24K	−2.1%	Director
Aug 1, 2025	NTRA	Sell	1,313	$132.73	$174K	−15.9%	Director
Aug 1, 2025	NTRA	Sell	1,183	$133.66	$158K	−17.0%	Director
Jul 1, 2025	NTRA	Sell	1,648	$167.05	$275K	−13.3%	Director
Jul 1, 2025	NTRA	Sell	2,651	$167.56	$444K	−24.6%	Director
Jun 10, 2025	NTRA	Sell	3,400	$164.33	$559K	−35.0%	Director
Jun 10, 2025	NTRA	Sell	600	$165.04	$99K	−9.5%	Director