Cathie Wood's Ark Invest Makes Bold Moves with Iridium and Pacific Biosciences Cathie Wood's Ark Invest executed notable trades on March 21, 2025, purchasing over 68,000 shares of Iridium Communications and 243,300 shares of Pacific Biosciences. The transactions reflect Ark's continued interest in disruptive technologies, with a combined value exceeding $2.2 million. Simultaneously, Ark offloaded positions in Illumina and Amgen.1