Looks like Mario Gabelli loves Omnova. I am not sure of when Gabelli, and related entities, purchased the shares, but it is clear that they love Omnova (OMN).
Here is the ownership detail in a recent 13d filing.
Gabelli Funds
1,492,000 shares
3.40% of class
GAMCO
3,294,843 shares
7.51% of class
Teton Advisors
250,000 shares
0.57% of class
Mario Gabelli is deemed to have beneficial ownership of the Securities owned beneficially by each of the foregoing persons. GSI is deemed to have beneficial ownership of the Securities owned beneficially by Gabelli & Company. GBL and GGCP are deemed to have beneficial ownership of the Securities owned beneficially by each of the foregoing persons other than Mario Gabelli and the Foundation.
Full filing can be found at: 13d filing for Omnova 13d








