Alphatec Holdings Ownership & Insider Activity

Alphatec Holdings (ATEC) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 14.6% of shares outstanding. Institutional investors hold 44.7%. Over the past 90 days, insiders made 2 purchases worth $1.4M.

Shares Outstanding

153.332M

Shares Float

132.709M

Insider Shares Owned

22.354M

Insider % Owned

14.6%

Institutional Shares Held

68.592M

Institutional % Held

44.7%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

$1.4M total

Sales (90d)

Net Activity

Net Buying

Net Value (90d)

$1.4M

Alphatec Holdings Insider Transactions (Last 6 Months)

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Date	Insider	Title	Type	Shares	Price	Value
Oct 30, 2026	David Demski	—	BUY	60.000K	$6.81	$409K
Sep 10, 2026	Patrick Miles	CEO	BUY	115.000K	$8.81	$1.0M
Aug 5, 2026	Tyson E. Marshall	GENERAL COUNSEL & CORP. SEC.	SELL	8.168K	$9.65	$79K
Jun 10, 2026	KAREN MCGINNIS	—	GRANT	25.962K	$8.01	$48K

Alphatec Holdings Inc

Alphatec Holdings Ownership & Insider Activity

Alphatec Holdings Insider Transactions (Last 6 Months)

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