- Dimensional Fund Advisors LP sold 482,892 shares of NPK International Inc., reducing its holdings to 3,983,658 shares worth $57,722,000 during the first quarter.
- Several other institutional investors and corporate insiders, including CEO Matthew Lanigan and VP Lori Briggs, also modified their holdings or executed stock sales during the period.
- The company recently reported quarterly earnings of $0.15 per share on revenue of $81.58 million, beating consensus estimates.