Institutional investors and hedge funds have recently made changes to their positions in the company. LPL Financial LLC increased its stake in shares of PubMatic by 5.1% in the fourth quarter. LPL Financial LLC now owns 112,250 shares of the company's stock worth $1,634,000 after buying an additional 5,432 shares during the period. JPMorgan Chase & Co. increased its stake in shares of PubMatic by 263.0% in the fourth quarter. JPMorgan Chase & Co. now owns 226,328 shares of the company's stock worth $3,325,000 after buying an additional 163,979 shares during the period. Envestnet Asset Management Inc. increased its stake in shares of PubMatic by 12.9% in the fourth quarter. Envestnet Asset Management Inc. now owns 50,903 shares of the company's stock worth $748,000 after buying an additional 5,835 shares during the period. Russell Investments Group Ltd. increased its stake in shares of PubMatic by 5.7% in the fourth quarter.