Marshall Tyson Eliot Insider Trading Activity

Corporate InsiderGENERAL COUNSEL & CORP. SEC. · CIK 1666669

Total trades

$3.4M

Total volume

Mar 5, 2026

Last activity

ATEC

Alphatec Holdings, Inc.

Marshall Tyson Eliot has been net-selling over the last 12 months with 0 purchases and 8 sales across 1 company.

ATEC is the most-traded position with 8 trades. The largest single transaction was a sale of ATEC for $1.4M on Nov 20, 2025.

Performance Scorecard

Forward stock performance after each transaction by Marshall Tyson Eliot. 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	—	-9.0%	38%	8
90 days	—	+5.0%	50%	8
120 days	—	-14.0%	43%	7

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

Price & Trades

Pro: Trade Markers

ATEC · Alphatec Holdings, Inc.

🔒 Subscribe to see trade entries

Pro members see exactly when Marshall Tyson Eliot bought and sold ATEC.

Upgrade to Pro

Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	ROLE
Mar 5, 2026	ATEC	Sell	88,835	$12.49	$1.1M	GENERAL COUNSEL & CORP. SEC.
Dec 5, 2025	ATEC	Sell	9,924	$21.48	$213K	GENERAL COUNSEL & CORP. SEC.
Dec 5, 2025	ATEC	Sell	12,965	$21.47	$278K	GENERAL COUNSEL & CORP. SEC.
Nov 20, 2025	ATEC	Sell	70,000	$19.51	$1.4M	GENERAL COUNSEL & CORP. SEC.
Aug 5, 2025	ATEC	Sell	8,168	$14.96	$122K	GENERAL COUNSEL & CORP. SEC.
Aug 5, 2025	ATEC	Sell	9,924	$14.86	$147K	GENERAL COUNSEL & CORP. SEC.
Aug 1, 2025	ATEC	Sell	12,878	$12.00	$155K	GENERAL COUNSEL & CORP. SEC.
Jul 10, 2025	ATEC	Sell	1,500	$12.00	$18K	GENERAL COUNSEL & CORP. SEC.