The most recent stock split for Sonnet BioTherapeutics Holdings (SONN) was a 2:1 split on March 23, 2011. The combined total of all historical stock splits for Sonnet BioTherapeutics Holdings result in 2 current shares for every original share available at the IPO in 2006.
Sonnet BioTherapeutics Holdings - 18 Year Stock Split History | SONN