The most recent stock split for TriCo Bancshares (TCBK) was a 2:1 split on May 3, 2004. The combined total of all historical stock splits for TriCo Bancshares result in 4.29 current shares for every original share available at the IPO in 1993.
TriCo Bancshares - 31 Year Stock Split History | TCBK