As mothers of children with this disease, we have wept helplessly in recent months as friends — fellow members of a club we never asked to join — said goodbye to their sons, the babies they once held in their arms, whose dreams they held in their hearts until Duchenne robbed them of working muscles or a healthy future.

The drop comes the day after the drugmaker said it would add a so-called black-box warning to its gene therapy Elevidys after two teenage boys receiving the treatment died earlier this year.

Key Takeaways Sarepta Therapeutics shares were down nearly 25% early Friday morning.The tumble followed a report that a third patient has died during a clinical trial for its Elevidys drug that treats muscular dystrophy.

Stocks on Sky High. Sarepta Therapeutics, Inc. (NASDAQ:SRPT) is one of the top-performing companies on Thursday. Sarepta Therapeutics saw its share prices rise by 19.53 percent on Thursday to close at $21.

Just how many employees is Sarepta Therapeutics laying off? And why did the FDA reject Ultragenyx's rare disease drug over manufacturing qualms?

Sarepta Therapeutics shares surged 34% in after-hours trading on Wednesday after the company said it would slash 500 jobs, or 36% of its workforce, as part of its restructuring plan. The move is expected to decrease costs by $400 million annually starting in 2026,

Sarepta's cost-saving moves, FDA surprises, and pipeline potential position SRPT as a unique opportunity. Read here for an investment analysis.