Are Trader Joe's and Aldi owned by the same company?

I'm curious, could you clarify if Trader Joe's and Aldi are actually under the same corporate umbrella? It seems like they both offer similar low-priced, high-quality products, but I'm not entirely sure about their ownership structure. Could you shed some light on this matter? Are they indeed owned by the same company, or are they simply two separate entities with similar business models?