Millrace Asset Group Inc. lifted its stake in Zeta Global Holdings Corp. (NASDAQ:ZETA – Free Report) by 22.4% in the 4th quarter, Holdings Channel.com reports. The institutional investor owned 442,265 shares of the company’s stock after acquiring an additional 80,961 shares during the quarter. Zeta Global comprises approximately 3.9% of Millrace Asset Group Inc.’s portfolio, […]