NEW YORK (GenomeWeb News) – Fitch Ratings placed the ratings of Thermo Fisher Scientific and Life Technologies on Rating Watch Negative following Thermo Fisher's announcement on Monday that it plans to buy Life Tech for $13.6 million.

Thermo Fisher's ratings that were placed on Rating Watch Negative include the company's long-term issuer default rating, which is rated BBB+; short-term IDR, rated F2; senior notes, rated BBB+; and commercial paper, rated F2.

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