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Peter Thiel’s Palantir Faces an Escalating Court Battle With an Early Investor

  • Company thwarted stock sales, guarded results, suit says
  • Palantir accused investor last year of stealing trade secrets
Peter Thiel

Peter Thiel

Photographer: Noah Berger/Bloomberg

The battle between Palantir Technologies Inc. and a longtime investor just got nastier. KT4 Partners LLC, which first backed Palantir more than a decade ago, sued the privately held data analytics company, saying attempts to sell shares were thwarted and that financial information was withheld.

The suit filed by KT4 Partners in Delaware asks to inspect Palantir’s books and records. It comes six months after Palantir sued KT4 Partners, its managing member Marc Abramowitz and a charitable trust operating in his name. Palantir claimed Abramowitz stole trade secrets and falsely filed five patents in his name for work completed by the company.