Can business sell without my approve if I own 12% of business?

Long story short my father passed away 10 years ago and owned a company 100%. He willed me and my brother 12.25% each (total 24.5%). My aunt owned 51%. I just found out from a family friend she sold the company a month or two ago. Never told me it was for sale or that it sold. We are thinking it likely sold for at least 250k+ and building for another 300k. That fact she didn't tell my brother and I seems super shady and didn't even know she would be able to do that. Any idea on what are my best steps moving forward. Thanks for your time