The company entered an agreement with JP Morgan Chase that provides a five-year unsecured $300 million term loan and a $1.5 billion revolving facility.
The company immediately borrowed $255 million to pay part of the $680 million price tag for Alere's MeterPro cardiovascular and toxicology business and its BNP assay business.
The firm said that it expects to use the proceeds of the senior notes offering to contribute to retirement of remaining convertible notes.
Castle will use the proceeds to accelerate marketing and new product development related to its molecular prognostic tests for patients with underserved cancers.
The infectious disease diagnostics firm will initially receive $40 million from CRG, most of which will go towards paying down existing debt.
The company borrowed $205 million in revolving loans from the credit facility, which matures on December 23, 2021.
The company said it will use the proceeds for various purposes, including working capital, capital expenditures, stock repurchases, dividends, and acquisitions.
The company took out the credit in connection with its $4.2 billion pending acquisition of electron microscopy firm FEI.
The firm did not disclose how it intended to use the $8 million, but said that it would provide temporary working capital.
The company's new $14 million facility refinances its original $6 million loan, and adds capital for new growth.
CBS This Morning highlights recent Medicare fraud involving offers of genetic testing.
Researchers find that many cancer drugs in development don't work quite how their developers thought they did, as Discover's D-brief blog reports.
Mariya Gabriel, a Bulgarian politician, is to be the next European Union research commissioner, according to Science.
In Science this week: a survey indicates that US adults are more likely to support the agricultural use of gene drives if they target non-native species and if they are limited, and more.