Rock Springs Capital ATEC Position
Active3-Fund ConvergenceRock Springs Capital held their position in Alphatec Holdings, Inc. (ATEC) in Q4 2025, holding $6.4M worth of shares across 302,500 shares.
The position was first reported in Q4 2024 and has been tracked across 5 quarterly 13F filings.
ATEC is a convergence signal: 3 specialist biotech funds hold this stock, suggesting high institutional conviction.
Short interest stands at 12.2% of float with 5.6 days to cover, indicating significant bearish positioning against Rock Springs's long thesis.
About Alphatec Holdings, Inc.
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.
Full company profile →Short Interest
12.2%
5.6 days to cover
Rock Springs Capital ATEC Position History
Frequently Asked Questions
Does Rock Springs Capital own ATEC?
Yes. As of Q4 2025, Rock Springs Capital holds 302,500 shares of Alphatec Holdings, Inc. (ATEC) valued at $6.4M. This data comes from their SEC 13F filing.
How many hedge funds own ATEC?
3 specialist biotech hedge funds currently hold ATEC, including Driehaus Capital, Deerfield Management. When 3 or more specialist funds hold the same stock, BiotechEdge flags it as a convergence signal.
When did Rock Springs Capital first buy ATEC?
Rock Springs Capital's position in ATEC was first reported in Q4 2024. 13F filings are reported with a 45-day delay, so the actual purchase may have occurred earlier in the quarter.
Is Rock Springs Capital's ATEC position increasing or decreasing?
Rock Springs Capital held their ATEC position unchanged in the most recent quarter.
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