NEW YORK, May 29, 2024 /PRNewswire/ -- Sarepta Therapeutics Inc. (NASD: SRPT) will replace Shockwave Medical Inc. (NASD: SWAV) in the S&P MidCap 400 effective prior to the opening of trading on Monday, June 3. S&P 500 constituent Johnson & Johnson (NYSE: JNJ) is acquiring Shockwave Medical in a deal expected to be completed soon pending final closing conditions. Following is a summary of the changes that will take place prior to the open of trading on the effective date: Effective DateIndex Name Action Comp ...