Cronos appoints Nestle, Supreme Cannabis alum Griese as head of operations

Just Released! Get realistic market forecasts, state-by-state insights and benchmarks with the new 2024 MJBiz Factbook member program, now with quarterly updates. Make informed decisions.


Canadian marijuana producer Cronos Group promoted John Griese, former chief operating officer of The Supreme Cannabis Co., as senior vice president, head of North American operations.

The Toronto-based company quietly disclosed the personnel move in a regulatory filing last week.

Griese joined Cronos last August as vice president of operations, per the filing, soon after Ontario-based Canopy Growth Corp. bought Supreme for roughly 435 million Canadian dollars ($345 million).

Before Griese’s stint at Supreme, he served as chief operating officer of Creso Pharma, an Australian medical cannabis company, from July 2018 through November 2019.

2024 MJBiz Factbook – now available!  

Exclusive industry data and analysis to help you make informed business decisions and avoid costly missteps. All the facts, none of the hype. 

Featured inside: 

  • Financial forecasts + capital investment trends 
  • 200+ pages and 49 charts highlighting key data figures and sales trends 
  • State-by-state guide to regulations, taxes & market opportunities
  • Monthly and quarterly updates, with new data & insights
  • And more!

The 59-year-old also held key supply-chain and operational roles at Nestle S.A., a Swiss multinational food and drink company, and beverages company PepsiCo.

Cronos shares trade as CRON on the Toronto Stock Exchange and the Nasdaq.