Thermo Fisher PPDThermo Fisher Scientific (NYSE:TMO) announced today that it completed its previously announced $17.4 billion acquisition of PPD.

Waltham, Massachusetts-based Thermo Fisher announced in April that it would acquire the company that provides clinical research services to the biopharma and biotech industry. PPD ceased trading on the Nasdaq prior to opening today and will become part of Thermo Fisher’s laboratory products and services segment.

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