Lattice, which has been investing in cryptocurrencies since 2021, is raising a third fund, according to a filing with the Securities Exchange Commission on Monday, which did not specify the size of the fund. The company has invested in 81 projects, according to PitchBook. Two of the most prominent investments are Immunefi, a cryptocurrency bug bounty platform, and Protocol Labs, the core developer of Filecoin, a decentralized cloud storage network.