The Shareholder Commons to Present Shareholder Proposal Asking McDonald's to Disclose Systemic Costs of Antibiotics Use in Their Supply Chain Similar proposal withdrawn at Yum! Brands after company agreed to disclose the systemic costs of antibiotic use News provided by Share this article Share this article WILMINGTON, Del., May 5, 2021 /PRNewswire/ -- The Shareholder Commons, a non-profit organization advocating for a systems-first approach by business and investors, will present a shareholder proposal at the McDonald's annual shareholders meeting on May 20, 2021 asking the company to study and disclose the external environmental and public health costs created by the use of antibiotics in its meat supply chain.