David Demski Biography and Net Worth

Director of Alphatec

Dave Demski has served as a director since October 2023. Mr. Demski has over 20 years of direct spine industry experience. Most recently, Mr. Demski served on the Board of Directors of Globus Medical from 2003 to April 2022. From August 2017 to April 2022, Mr. Demski served as Globus Medical’s CEO and, from April 2019 to April 2022, its President. From 2003 to July 2008, Mr. Demski served as Globus Medical’s Chief Financial Officer and prior to that, as President, Emerging Technologies. Before joining Globus Medical, Mr. Demski founded Cornerstone Capital LBO Fund, a boutique leveraged buyout consultancy. Mr. Demski’s experience also includes serving as Vice President for Gilo Ventures, a Silicon Valley-based venture capital fund, and serving as Chief Operating Officer of Rendall and Associates, a telecommunications-focused consulting firm. He also managed regional and international distribution for Domino’s Pizza through the company’s growth in the late 1980s. Previously, Mr. Demski was an audit supervisor for Peat, Marwick, Mitchell & Company. Mr. Demski serves on the Board of Directors at Axonics, Inc. (Nasdaq: AXNX), a global medical technology company that is developing and commercializing novel products for the treatment of bladder and bowel dysfunction. Mr. Demski received a B.S. in Business Administration from the University of Michigan and an M.B.A. from Stanford Graduate School of Business.

What is David M. Demski's net worth?: The estimated net worth of David M. Demski is at least $3.01 million as of August 21st, 2024. Mr. Demski owns 288,441 shares of Alphatec stock worth more than $3,008,440 as of April 2nd. This net worth approximation does not reflect any other investments that Mr. Demski may own. Learn More about David M. Demski's net worth.
How do I contact David M. Demski?: The corporate mailing address for Mr. Demski and other Alphatec executives is 5818 EL CAMINO REAL, CARLSBAD CA, 92008. Alphatec can also be reached via phone at (760) 431-9286 and via email at ir@alphatecspine.com. Learn More on David M. Demski's contact information.
Has David M. Demski been buying or selling shares of Alphatec?: David M. Demski has not been actively trading shares of Alphatec within the last three months. Most recently, on Wednesday, August 21st, David M. Demski bought 50,000 shares of Alphatec stock. The stock was acquired at an average cost of $5.67 per share, with a total value of $283,500.00. Following the completion of the transaction, the director now directly owns 288,441 shares of the company's stock, valued at $1,635,460.47. Learn More on David M. Demski's trading history.
Who are Alphatec's active insiders?: Alphatec's insider roster includes Evan Bakst (Director), Jeffrey Black (CFO), David Demski (Director), Jason Hochberg (Director), Craig Hunsaker (EVP), John Koning (Chief Financial Officer), Scott Lish (SVP), Tyson Marshall (General Counsel & Corporate Secretary), Patrick Miles (CEO), David Mowry (Director), David Pelizzon (Director), Jennifer Pritzker (Major Shareholder), Paul Segal (Major Shareholder), David Sponsel (EVP), and James Tullis (Director). Learn More on Alphatec's active insiders.
Are insiders buying or selling shares of Alphatec?: In the last twelve months, Alphatec insiders bought shares 1 times. They purchased a total of 50,000 shares worth more than $283,500.00. In the last twelve months, insiders at the medical technology company sold shares 14 times. They sold a total of 425,053 shares worth more than $4,855,334.27. The most recent insider tranaction occured on March, 7th when CEO Patrick Miles sold 12,691 shares worth more than $135,032.24. Insiders at Alphatec own 22.8% of the company. Learn More about insider trades at Alphatec.
Information on this page was last updated on 3/7/2025.

David M. Demski Insider Trading History at Alphatec

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction	Details
8/21/2024	Buy	50,000	$5.67	$283,500.00	288,441
11/9/2023	Buy	30,000	$10.50	$315,000.00	181,694

David M. Demski Buying and Selling Activity at Alphatec

Alphatec Company Overview

Alphatec Holdings, Inc., a medical technology company, designs, develops, and advances technologies for the surgical treatment of spinal disorders in the United States and internationally. It manufactures and sells implants and instruments through third-party suppliers. The company offers Alpha InformatiX product platform, including EOS imaging system that provides full-body imaging; VEA alignment mobile application, which leverages EOS technology to more quickly quantify alignment parameters on a mobile device; SafeOp Neural InformatiX System that automates electromyographic and somatosensory evoked potential monitoring; and Valence, an intra-operative system that integrates navigation and robotics into spine procedures, as well as Sigma Prone TransPsoas (PTP) Access and PTP Patient Positioning Systems. It also provides split-blade retractors; Sigma-ALIF Access System, a procedure-specific access system; spinal implants and fixation systems comprising NanoTec surface modifications, Calibrate PSX, and Invictus, as well as various standalone implants for height restoration and stabilization. In addition, the company provides biologics comprising 3D ProFuse Osteoconductive Bioscaffold for ease of handling and better endplate-to-endplate contact; AlphaGRAFT Demineralized Bone Matrix (DBM) comprising demineralized human tissues; AlphaGRAFT DBM Fibers comprising demineralized fibers; AlphaGRAFT Cellular Bone Matrix (CBM), a growth factor-enriched cellular bone matrix; AlphaGRAFT CBM that is delivered in granular, fiber, or structural form; BioCORE Moldable Bioactive Graft, a synthetic mineral-collagen composite matrix that can be molded to fit the bone defect; and Amnioshield Amniotic Tissue Barrier, an allograft for spinal surgical barrier applications. The company sells its products through a network of independent sales agents and direct sales representatives. Alphatec Holdings, Inc. was founded in 1990 and is headquartered in Carlsbad, California.

Today's Range

Now: $10.45

$9.79

$10.54

50 Day Range

MA: $10.79

$9.27

$12.53

2 Week Range

Now: $10.45

$4.88

$14.54

Volume

2,843,350 shs

Average Volume

1,982,770 shs

Market Capitalization

$1.51 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.39