Institutional investors purchased a net $1.9 million shares of NBIX during the quarter ended December 2012 and now own 86.99% of the total shares outstanding. This majority interest is a greater percentage than is typical for companies in the Biotechnology industry and highlights that the smart money sees this stock as an important holding.
| Mutual fund holders | 47.39% |
| Other institutional | 39.60% |
| Individual stakeholders | 11.03% |