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Check out the companies making headlines after Wednesday's bell:
Herman Miller – The office furniture company's shares rose 0.8% on a better-than-expected result. Herman Miller reported earnings per share of 89 cents, beating a FactSet estimate of 56 cents per share. The company's sales also increased 7% over the previous year.
Roku-Roku shares rose more than 3% after the company announced it would be transporting HBO Max on its platform.
Amgen – Amgen rose 0.3% after the biotech company increased its quarterly dividend from $ 1.60 per share to $ 1.76 per share.