Catheter-Linked Death Jolts Penumbra, a Target of Short Sellers

  • One Penumbra critic says stroke treatment shouldn’t be sold
  • Several insiders sold shares before and after stock peaked
An employee assembles catheters.

Photographer: GERARD JULIEN/AFP/Getty Images

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Penumbra Inc. assured the public last summer that it had addressed a problem associated with its specialized catheter that was linked to the deaths of more than a dozen stroke patients. Then came another fatality linked to the product.

The latest death associated with the Jet 7 Xtra Flex, a clot-removing catheter, was made public on Wednesday. It has fed an argument by some short sellers that the system -- approved by the U.S. Food and Drug Administration last year in an accelerated process -- has significant defects that will create legal liabilities for the company.