Leadership

It’s become a cliché, but it’s true: an organization is only as good as its people. HollisterStier has always sought leaders whose expertise and knowledge will enable us to continue our legacy of revolutionizing the allergenic extract industry. Our management team is the best in the business – and it shows.

“It was my good fortune to find a company that allows me to use my education to help other people – and that provides ample opportunities to give back to the community.”

Dan Mork

Chris Preti | president
Chris has 25 years of pharmaceutical experience in research and development, marketing, sales and operations.
He is committed to building on HollisterStier Allergy’s reputation as a national leader in allergenic extracts and skin test devices, and in helping practitioners meet the challenges they face treating allergy patients. Chris has a Masters of Science in Chemistry from Furman University and a Masters of International Business Studies at Darla Moore School of Business, South Carolina University along with completing Wharton’s School of Business Transformational Leadership for Executives program in Pennsylvania.
Chris Preti

Chris Preti

Mary Miller | national sales director
Mary’s strong leadership style was quickly recognized when she joined HollisterStier in 1976, and she was seen as a mentor by many of her colleagues very early in her career. In her role as national sales manager, Mary provides guidance and support to HollisterStier’s sales professionals, who view her in-depth knowledge of the allergy field as a great resource.
Mary Miller

Mary Miller

Derek Constable, Ph.D. | technical director
Since joining HollisterStier in 1979, Derek has been instrumental in quality initiatives and new product development. He has been actively involved throughout his career in the development of new and improved immunotherapy products as well as diagnostics in both Europe and the United States, and offers an abundance of knowledge and expertise in the immunotherapy field. Derek holds a Bachelor of Science and a Ph.D. in biochemistry from the University of Birmingham, United Kingdom.
Derek Constable, Ph.D.

Derek Constable, Ph.D.

Dan Mork | resident botanist and pollen facility manager
Dan joined HollisterStier in 1977 as a pollen technician, and it was evident even then that he had an aptitude for allergens. His experience in allergy includes mycology, mite production, and extractions, giving Dan extensive knowledge in virtually every facet of the field. He’s a vital part of the HollisterStier Allergy team, serving as a technical advisor and managing both the procurement of pollen raw materials and pollen production. Dan earned a Bachelor of Science with focuses in biology, business administration, and chemistry from Eastern Washington University.
Dan Mork

Dan Mork

Sam Wauford | east region sales manager
Sam joined the HollisterStier sales team in 2008, bringing with him 10 years of sales experience and 18 years in sales management. He is able to utilize his bachelor’s degree in biology from the University of South Carolina, and his master’s degree in botany from the University of Tennessee, leading pollen walks for allergy specialists across the United States. Combining Sam’s passion for sales and botany has paid off for HollisterStier, giving us an award winning salesman with the knowledge and know-how to lead our eastern region.
Sam Wauford

Sam Wauford

Shawn Sorey | west region sales manager
Upon joining HollisterStier in 2007, Shawn began working in the environmental monitoring (quality assurance) division. A background in sales enabled him to excel as an account specialist for the northwest states (Washington, Oregon, Idaho, Montana, and Alaska), which in turn led to his advancement to inside sales manager and account executive. Shawn holds a MBA and a Bachelor of Science in biology.
Shawn Sorey

Shawn Sorey

Jennifer Beeler | marketing manager
Jen joined HollisterStier Allergy in 2014 and brought with her a deep background in marketing and communications, predominately in healthcare. She undertook a company rebranding project in 2016, which included the update of product sales materials, and she works continuously to build awareness of our products among healthcare professionals who treat allergy patients. Jen has a Bachelor of Science in public relations & communications from Eastern Washington University, and a Master of Business Administration from West Texas A&M University.
Jennifer Beeler

Jennifer Beeler

Jason Johnson | commercial operations manager
Since joining HollisterStier Allergy in 2009, Jason has proven to be a valuable asset to the company in many areas, including production, procurement, operations, and planning. In his current role as the manager of commercial operations he oversees the customer service department and customer support functions. Jason is also responsible for managing product demand forecasting and planning, along with sales analytics. Jason earned his Bachelor of Arts in Organizational Management from Whitworth College.
Jason Johnson

Jason Johnson