Ironwood Pharmaceuticals is trading 5% down at $4.25 as investors react to recently disclosed insider share sales and broader biotech sector weakness.

  • Form 4 filings revealed interim CFO Ronald Silver sold 127,890 shares at approximately $4.52 per share under a pre-arranged 10b5-1 trading plan.
  • The decline extends a pullback from last week, coinciding with a broader downturn in the biotech sector as the XBI trades down over 2%.