The California State Teachers Retirement System (CalSTRS) increased its holdings in Jazz Pharmaceuticals by 24,585.6% during the second quarter. A new filing with the Securities and Exchange Commission disclosed the transaction.

The pension fund acquired an additional 15,650,479 shares. This purchase brings its total ownership to 15,714,136 shares.

CalSTRS now owns 24.21% of the specialty pharmaceutical company. The stake was valued at approximately $3.787 billion at the time of the filing.

This substantial position signals a significant vote of confidence from a major institutional investor in the company's future.