CenterBook Boosts Stakes in KLA and Three Others, Trims SpaceX

CenterBook Partners made several notable portfolio changes in the third quarter, sharply increasing its holdings in KLA Corporation, Arrowhead Pharmaceuticals and Ameriprise Financial. It also opened a new position in Primo Brands, acquiring 385,080 shares. In contrast, the firm reduced its SpaceX stake by 9.7%, selling 11,766 shares. The filings show a mix of increased investments and a partial exit rather than a uniform shift across its portfolio.