Despite its hippie, artsy beginnings in 1967 in Pasadena, California, Trader Joe’s now leads U.S. grocery giants in revenue per square foot — over $2,100. It made $13.3 billion last year from 560 stores nationwide, most located in relatively wealthy small towns and city neighborhoods.

Wielding a bullhorn, Local 1 President Jamie Edwards fired up the crowd and the Financial District. “What’s disgusting? Union Busting!” and “Trader Joe’s, you can’t hide. We can see your greedy side!” echoed off skyscrapers occupied by JPMorgan Chase-owned First Republic Bank, Rockport Capital and Trader Joe’s East Coast offices. Nervous armed security guards ushered clients through picketed gilded doors.

Edwards reported a list of union-busting tactics and unfair labor practices endured by the workers in the Western Massachusetts store this past year. They include retaliatory firings and other discipline on bogus accusations, coercion, in-store and at-home harassment, threats and intimidation, cutting hours, prohibition of union pins, interrogations and captive audience meetings, bad faith bargaining, taking health care coverage from workers — including one worker with cancer — and unrelenting written and verbal misrepresentations of the union’s legal rights, intentions and demands.