According to the Irvine Police Department, the men blocked in the woman's car, punched her in the face and stole her backpack, which contained $5,000 in cash.
Last week, detectives tracked down the suspects and cornered the men inside a car near another bank and took them into custody.
Michael Anthony Goodwin, 21, of San Ramon, and Raul Santino Lopez, 22, of El Sobrante, were arrested for the previous robbery and conspiracy.
Keyon Maceo Johnson, 22, of Oakland, was arrested for conspiracy.