If you earned under $12000 and you are single and are not a dependent on anyone else’s tax return , there is no requirement to file unless taxes were withheld in which case you’ll need to file to get the money back
All the income you are asking about is reported as income.
Were you given stock or stock options? ISO Stock options (if vested) can get tricky so best to ask at the employer . If you were given stock that is taxable (. But I suspect they were stock options)
