Sentence:  Indeed , as already noted , the Court proceeded on the assumption that the executives involved in the dealings between du Pont and General Motors acted `` honorably and fairly '' and exercised their business judgment only to serve what they deemed the best interests of their <WSD>own</WSD> companies . 
Meaning of the word marked with <WSD> tags:  belonging to or on behalf of a specified person (especially yourself); preceded by a possessive