Ionpath Inc., a developer of high-definition spatial proteomics, scored $18 million in a series B funding round led by Samsara Biocapital. The round also included global mass spectrometry leader Bruker Corp. as a new investor. Menlo Park, Calif.-based Ionpath plans to use the investment for continued development and deployment of the company’s Multiplexed Ion Beam Imaging (MIBI) technology, which provides quantitative protein imaging at a subcellular level.

Nutcracker Therapeutics Inc., a startup developing a "push-button GMP-in-a-box" platform to manufacture mRNA therapeutics, has raised $60 million in series B financing led by Arch Venture Partners.

Immune Regulation Ltd., a U.S.-U.K. venture advancing peptide-based therapies for rheumatoid arthritis and allergic diseases, has closed a £40.6 million (US$53.4 million) series B financing that will support its preparation for multiple phase II studies next year, as well as an evaluation of one candidate in COVID-19-related acute respiratory distress syndrome. Morningside Ventures led the round, along with existing shareholders, including London-based 24Haymarket.

Rain Therapeutics Inc., a California company developing targeted cancer therapies with a biomarker-based strategy, has raised a $63 million series B round led by Boxer Capital to support its development of the small-molecule MDM2 inhibitor RAIN-32 (milademetan) for the potential treatment for liposarcoma and other cancers.

Exo Imaging Inc. closed a $40 million series B+ funding round that is earmarked to help with the development of a hand-held ultrasound device and cloud-based workflow software platform. The funding follows a series B round in August 2019 that reeled in $35 million and brings the company’s total raise to nearly $100 million.

With an eye toward launching its first product, Mobilion Systems Inc. has revealed a $35 million series B funding round led by Amoon. Todd Sone, partner at Amoon who also is joining the company’s board, highlighted the duo’s common vision to develop technologies that offer high resolution and speed.

Tech-enabled diabetes and chronic conditions management company Cecelia Health has secured $13 million in a series B financing led by Rittenhouse Ventures and Endo Investors. Other participants in the round included Boston Millennia Partners, SustainVC and G100 Capital. The funds will be used to speed and further scale adoption of the company’s coaching and telemedicine tools and to build out digital health capabilities.

DNA Script SAS raised a $50 million extension to its series B financing, for a total yield of $89 million. Paris-based DNA Script has earmarked the funds to advance the development of its suite of enzymatic DNA synthesis (EDS) technologies and support the commercial launch of its Syntax DNA benchtop printer.