Institutional shares held 104 Million
7.51M calls
1.03M puts
Total value of holdings $1.48B
$107M calls
$14.7M puts
Market Cap $1.49B
104,656,000 Shares Out.
Institutional ownership 99.11%
# of Institutions 280


Latest Institutional Activity in ATEC

Top Purchases

Q3 2025
Assenagon Asset Management S.A. Shares Held: 750K ($10.7M)
Q3 2025
Los Angeles Capital Management LLC Shares Held: 29.3K ($418K)
Q3 2025
Contravisory Investment Management, Inc. Shares Held: 17.7K ($252K)
Q3 2025
Atlas Brown,Inc. Shares Held: 11.5K ($164K)
Q3 2025
Diversified Trust CO Shares Held: 10.8K ($154K)

Top Sells

Q3 2025
Voya Investment Management LLC Shares Held: 41.7K ($594K)
Q3 2025
Kopp Family Office, LLC Shares Held: 365K ($5.21M)
Q3 2025
Congress Asset Management CO Shares Held: 384K ($5.48M)
Q3 2025
Net Worth Advisory Group Shares Held: 13K ($185K)
Q3 2025
High Mark Wealth Management LLC Shares Held: 94.1K ($1.34M)

About ATEC

Alphatec Holdings, Inc., a medical technology company, designs, develops, and advances technologies for the surgical treatment of spinal disorders. The company offers SafeOp Neural InformatiX System, an Alpha InformatiX product platform designed to reduce the risk of intraoperative nerve injury; Sigma transforaminal lumbar interbody fusion pedicle-based access system that provides direct visualization of anatomical landmarks; Sigma PTP Access and Patient Positioning System; squadron lateral retractor designed to maximize patient outcomes; Invictus Spinal Fixation System, a thoracolumbar fixation system to treat a range of pathologies; and Invictus MIS SingleStep System that provides minimally invasive pedicle screw placement. It also provides Invictus Modular Fixation Systems designed to increase adaptability with the power of screw modularity; OsseoScrew system to restore the integrity of the spinal column; Arsenal spinal fixation system, a comprehensive thoracolumbar fixation platform to fix a range of degenerative to deformity pathologies and surgical procedures; Aspida Anterior Lumbar Plating System, a fixation system for anterior lumbar interbody fusion; AMP Anti-Migration Plate; OCT Spinal Fixation System; trestle luxe anterior cervical plate system; and Insignia Anterior Cervical Plate System. In addition, the company offers IdentiTi Porous Ti, Transcend Lateral, and Battalion Posterior Interbody Implants; and biologics consisting of Cervical Structural Allograft Spacers, 3D ProFuse Demineralized Bone Scaffold, Neocore Osteoconductive Matrix, Alphagraft Demineralized and Cellular Bone Matrix, and Amnioshield Amniotic Tissue Barrier, as well as EOS imaging products. It sells its products through a network of independent distributors and direct sales representatives in the United States. The company was founded in 1990 and is headquartered in Carlsbad, California.


Insider Transactions at ATEC

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
2.6M Shares
From 16 Insiders
Grant, award, or other acquisition 2.48M shares
Exercise of conversion of derivative security 124K shares
Sell / Disposition
2.18M Shares
From 15 Insiders
Bona fide gift 46.1K shares
Payment of exercise price or tax liability 220K shares
Open market or private sale 1.91M shares

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