Khosla Ventures, one of the biggest and most well-known venture capital firms, is getting ready to raise a new seed fund, according to documents filed with the Securies and Exchange Commission on Wednesday.

The total size of the fund, called Khosla Ventures Seed C, will be $400 million. Listed in the filing are partners Vinod Khosla, Keith Rabois, Samir Kaul, and David Weiden.