The California State Teachers Retirement System (CalSTRS) has significantly increased its stake in Revvity Inc., according to a 13F filing reported on September 12, 2026. The pension fund purchased an additional 14,194,254 shares during the second quarter, representing a 10,607.8% increase in its holdings.
This acquisition gives CalSTRS ownership of approximately 12.84% of Revvity, with the stake valued at nearly $1.6 billion at the end of the reporting period. Such a substantial investment by a large and influential institutional investor is typically viewed as a strong positive signal regarding the company's long-term prospects and strategic direction. No specific market reaction to this filing was available.