Pat shrimp dry. Season with salt, pepper, and 1 tsp Old Bay seasoning on both sides.
Heat olive oil in a large skillet over medium-high heat.
Add shrimp and cook 2-3 minutes per side until pink and curled. Remove to a plate.
Add minced garlic to the same skillet. Cook 1 minute until fragrant.
Pour in white wine and lemon juice. Scrape up browned bits from bottom of pan with a wooden spoon.
Bring to a boil, then reduce heat and simmer 5 minutes to reduce.
Cut butter into chunks and add to pan along with remaining 1 tsp Old Bay. Stir until butter melts completely into the sauce.
Return shrimp to skillet and toss to coat with sauce. Taste and adjust salt and pepper if needed.
Sprinkle with fresh parsley and serve immediately with grated Parmesan.