RBC Capital downgraded Inspire Medical Systems, Inc. (NYSE: INSP) from "Outperform" to "Sector Perform" with the stock priced at $81.33.Baillie Gifford & Co. reduced its stake in Inspire Medical by 2.7%, influencing possibly the downgrade decision.Despite the downgrade, Texas Permanent School Fund Corp and Nordea Investment Management AB showed increased interest in INSP, indicating confidence in its future.Inspire Medical Systems, Inc. (NYSE: INSP) is a company that specializes in innovative medical soluti ...