Karna started her tenure with XL Catlin last month, reporting to chief platform officer Myron Hendry. Her previous stops include president of Verisk digital services, and actuarial CIO and managing director at AIG.
The companies originally planned to file the brief later this coming week, but accelerated efforts over the weekend after other legal challenges to the order, according to people familiar with the matter.
Other companies involved include firms in finance, manufacturing, energy and consumer goods sectors. Its not clear yet which companies will agree to sign on. The goal is to publish the open letter this week.