Palantir's Insider Sell-Off Casts a Shadow Over a Blistering Run of Deal-Making

Palantir signs Nebius and NESO deals, Q2 revenue up 93%, but insiders sold $116.8M in shares, signaling caution.

The arithmetic of Palantir's current market position is straightforward to describe but harder to reconcile. The company is signing partnerships at a pace that would flatter most software firms, its core growth metrics remain explosive, and yet the people best positioned to judge the stock's worth are quietly trimming their exposure. Over the past 90 days, insiders have sold Palantir shares worth $116.8 million — a figure that sits awkwardly alongside the narrative of a growth story still in its early chapters.

A Partnership Pipeline That Keeps Flowing

The latest strategic move came on September 8, when Palantir named Amsterdam-based Nebius its preferred infrastructure partner for sovereign AI solutions. The arrangement lets clients run open AI models on Nebius infrastructure while fine-tuning them against proprietary datasets — an appeal aimed squarely at governments and enterprises that want AI capabilities without surrendering control of sensitive information to foreign cloud providers. Nebius CEO Arkady Volozh framed the shift in terms of data sovereignty, noting that control over models and data is becoming a decisive factor for both companies and states. Financial terms were not disclosed, though the build-out is expected to proceed through modular data centers in locations with adequate power supply.

That same day, Palantir locked in a contract worth £21.2 million with NESO, the UK's electricity system operator regulator. The agreement runs through July 2027 with an optional six-month extension into 2028.

The deal-making had actually begun days earlier. On September 3, Palantir expanded its alliance with PwC US, integrating ERP modernization and consulting work with its Foundry and AIP toolkits — a platform the companies claim can process transactions up to 50 percent faster. The defense side has been equally active: the US Army has moved the TITAN program into production, generating a $127 million delivery order for eight systems. Notably, Palantir is acting as prime contractor alongside partners including Anduril and L3Harris — evidence that the company has evolved from pure software vendor into a systems integrator within complex weapons programs.

The Numbers Behind the Noise

The operational fundamentals give the bulls plenty of ammunition. In the second quarter of 2026, revenue climbed 93 percent to $1.935 billion, while earnings per share of $0.41 blew past the $0.28 consensus estimate. US commercial revenue grew 149 percent, with a net dollar retention rate of 157 percent. Management responded by lifting full-year 2026 guidance to a range of $8.15 billion to $8.158 billion.

There are also signs of sectoral ambition. Peter Zaffino, the former AIG CEO and executive chairman, will take charge of Palantir's financial services division starting in January 2027 — a hire that signals serious intent in banking and insurance, even if the payoff is unlikely to be immediate.

The Counter-Narrative in the Trades

The insider activity complicates the picture. CEO Alexander Karp sold roughly 492,000 shares on August 20 at an average price of $174.79, generating proceeds of about $86 million — officially executed through a 10b5-1 plan to cover tax obligations on vested equity. Cathie Wood's Ark Invest has also reduced its position by approximately $25 million, rotating into Block and Rocket Lab instead.

None of these transactions are legally problematic, and the tax-motivated explanation for Karp's sale is plausible. But the clustering of selling at elevated price levels is hard to ignore. It does not necessarily constitute a vote of no confidence in the business model — yet it sits uneasily with a stock that retail investors continue to price as a high-growth story with substantial runway remaining.

Where the Stock Stands

The market's response to the Nebius announcement has been muted, which is perhaps unsurprising given the valuation debate that has trailed Palantir for months. The shares currently trade around €146.82, roughly 18 percent below the 52-week high of €179.98 set in early November. The stock also sits about 10 percent above its 50-day moving average, suggesting the recent pullback has been partially absorbed.

Nebius itself carries its own valuation controversy. Analyst estimates range from a potential undervaluation of 22 percent to an overvaluation of more than 100 percent — a dispersion that reflects the broader uncertainty gripping AI-adjacent equities.

The central tension for Palantir investors remains whether operational growth can eventually justify the multiple. The Nebius partnership adds another strategic data point to that argument, but the financial impact cannot yet be quantified. Meanwhile, the insider selling serves as a reminder that those with the clearest view of the company's trajectory have chosen to take some chips off the table at current prices. Both observations can be true simultaneously — and for a stock trading where Palantir does, that ambiguity is precisely the point.