Ex-Palantir Adviser to Keep SpaceX, OpenAI Stakes in Trump Role

Former Palantir Technologies Inc. adviser Jacob Helberg plans to retain investments in dozens of artificial intelligence, defense and fintech companies as he starts his tenure as an under secretary of state in Donald Trump’s administration.

Among the firms he’ll keep a stake in are OpenAI, Anduril Industries, SpaceX, the Boring Co. and Neuralink, Helberg said in a filing this week. The latter three companies are run by Elon Musk, whose Department of Government Efficiency has pulled in more than a dozen people in his and Helberg’s shared orbit.

Jacob Helberg

Photographer: Kevin Dietsch/Getty Images

Helberg, 35, who was senior adviser to Palantir Chief ...