The most recent stock split for Hennessy Advisors (HNNA) was a 1.5:1 split on March 7, 2017. The combined total of all historical stock splits for Hennessy Advisors result in 5.0625 current shares for every original share available at the IPO in 2005.
Hennessy Advisors - 19 Year Stock Split History | HNNA