Starbucks Corp. SBUX, -2.07% said Monday it will give raises of at least 5% to all partners and store managers in U.S. company stores, starting Oct. 3, in response to what Chief Executive Howard Schultz called a "tragic week of violence" in the U.S. In a letter to employees posted on Starbucks' website, Schultz said it will double the "bean stock" award for employees who have reached two years of continuous service with the company. Coupled with the pay rise, the new bean stock program will result in total compensation for employees increasing between 5% to 15%. The coffee seller is also revising its benefits program to allow employees to shop for personalized health care plans. Schultz said the company will also attempt to be more accommodative with scheduling and its dress code. The stock, which rose 0.3% in morning trade, has lost 5.7% year to date, while the S&P 500 has gained 4.5%.