There is growing interest in the processes by which entrepreneurial opportunities are cocreated between entrepreneurs and their stakeholders. The longitudinal case study of de novo firm Wakefield Seafoods seeks to understand the underlying dynamics of phenomena that play out over time as stakeholders emerge and their contributions become essential to the opportunity formation process. The king crab data show that under conditions of uncertainty, characterized by incomplete or missing knowledge, entrepreneurial processes of experimentation, failure, and learning were effective in forming (...) and exploiting an opportunity. Moreover, contrary to existing literature that either emphasizes heroic entrepreneurs or downplays their value, this article shows that both the vision of the entrepreneur and the stakeholder contributions are critical. This detailed examination of process data shows that the cumulative actions made by entrepreneurs in concert with their stakeholders formed an opportunity that coalesced into a new market. (shrink)