Tyson Eliot Marshall Alphatec Holdings, Inc. (ATEC) insider trading activity

Tyson Eliot Marshall is GENERAL COUNSEL & CORP. SEC. of Alphatec Holdings, Inc.. Currently has a direct ownership of 345,442 shares of ATEC, which is worth approximately $6.82 Million. The most recent transaction as insider was on Dec 05, 2025, when has been sold 22,889 shares (Common Stock) at a price of $21.47 per share, resulting in proceeds of $491,426. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 345K

21.19% 3M change

40.63% 12M change

Total Value Held $6.82 Million

Tyson Eliot Marshall Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 05 2025	SELL Open market or private sale	$491,426 $21.47 p/Share	22,889 Reduced 6.21%	345,442 Common Stock
Nov 20 2025	SELL Open market or private sale	$1,365,700 $19.51 p/Share	70,000 Reduced 15.97%	368,331 Common Stock
Aug 05 2025	SELL Open market or private sale	$269,751 $14.91 p/Share	18,092 Reduced 3.96%	438,331 Common Stock
Aug 01 2025	SELL Open market or private sale	$154,536 $12.0 p/Share	12,878 Reduced 2.74%	456,423 Common Stock
Jul 10 2025	SELL Open market or private sale	$18,000 $12.0 p/Share	1,500 Reduced 0.32%	469,301 Common Stock
Apr 01 2025	BUY Grant, award, or other acquisition	-	19,848 Added 4.05%	470,801 Common Stock
Mar 06 2025	SELL Payment of exercise price or tax liability	$318,089 $11.44 p/Share	27,805 Reduced 5.81%	450,953 Common Stock

Jan 29 2025	BUY Grant, award, or other acquisition	-	233,120 Added 32.75%	478,758 Common Stock
Jun 12 2024	SELL Open market or private sale	$546,524 $10.88 p/Share	50,232 Reduced 16.98%	245,638 Common Stock
Mar 06 2024	SELL Open market or private sale	$121,401 $13.16 p/Share	9,225 Reduced 3.02%	295,870 Common Stock
Mar 01 2024	SELL Open market or private sale	$157,272 $13.3 p/Share	11,825 Reduced 3.73%	305,095 Common Stock
Feb 21 2024	BUY Grant, award, or other acquisition	-	27,778 Added 8.06%	316,920 Common Stock
Jul 19 2023	BUY Grant, award, or other acquisition	-	45,000 Added 13.47%	289,142 Common Stock

TEM

Tyson Eliot Marshall

GENERAL COUNSEL & CORP. SEC.

Carlsbad, CA

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