PFE has an interest in TRIL, says "Seeking Alpha" https://seekingalpha.com/article/4419037-trillium-therapeutics-cd47-lead-evokes-pfizer-interest-tril?mail_subject=tril-trillium-therapeutics-cd47-lead-evokes-pfizer-s-interest&utm_campaign=rta-stock-article&utm_content=link-2&utm_medium=email&utm_source=seeking_alpha Bladerunner