Uniform vesting (1 year cliff, 25% per year) is typical. Some companies (startups and post-IPO) were doing non-uniform vesting in part because the company's va

Uniform vesting (1 year cliff, 25% per year) is typical. Some companies (startups and post-IPO) were doing non-uniform vesting in part because the company's valuation was rapidly soaring (and in some cases crashed shortly thereafter). Some did this for refresher grants. The evidence I've seen is that it doesn't help with retention. Well, maybe it helped retain certain execs implementing the programs...