Big Switch Networks, based on Stanford research, had raised more than $120m from investors including Dell Technologies Capital, Intel Capital and Accton.
Revolution Medicines, based on research from University of Illinois at Urbana-Champaign, Stanford University and UC Berkeley, has filed for a $100m initial public offering.
The edge computing technology developer has reportedly been purchased by Apple, three years after being spun out of AI2 to advance work by University of Washington's Ali Farhadi.
Galecto, based on research at Lund and Edinburgh universities, is merging with PharmAkea, with the joint entity retaining the Galecto name and leadership team.
Altair has picked up computational electromagnetics software developer NewFasant, based on the research of University of Alcalá associate professor Lorena Lozano Plata.
Football helmet producer Vicis, a University of Washington spinout, has succumbed to cash pressures despite previously raising $85m in funding.
MIT's Taris, which is developing a drug delivery system for bladder diseases, has been purchased by Johnson & Johnson.
UCD-founded wasterwater purification spinout OxyMem has been bought by DowDuPont, already one of its shareholders.