NEW YORK, December 30, 2025, 15:09 ET — Regular session
- Nebius Group shares were down about 0.4% in afternoon trading after an SEC filing detailed a planned insider share sale.
- CEO Arkady Volozh disclosed a proposed sale of 41,000 Class A shares, worth about $3.6 million.
- The filing said the transactions are slated for Dec. 31 and Jan. 2, a period often marked by light liquidity.
Nebius Group N.V. shares slipped on Tuesday after a regulatory filing showed chief executive Arkady Volozh plans to sell a small block of stock around year-end. 1
The disclosure matters because Nebius has become a closely watched AI infrastructure name, where investors have been quick to react to any potential increase in share supply. Year-end trading can amplify moves, as fewer shares changing hands can push prices around. 1
Form 144 is the SEC notice insiders file when they intend to sell “control” securities, typically ahead of the actual transactions. It signals intent, but it is not the same as confirmation that a sale has been completed. 1
Nebius shares were down 0.4% at $85.67 in mid-afternoon trade, after ranging between $84.66 and $86.97 during the session. About 4.3 million shares had changed hands.
Volozh’s filing listed a proposed sale of 41,000 Class A ordinary shares with an aggregate market value of about $3.59 million, at an indicated price of $87.59 per share. The broker listed was Citigroup Global Markets. 1
The filing said the transactions are expected to take place on Dec. 31 and Jan. 2, and described the sale as “sell to cover,” a term typically used when shares are sold to cover taxes or other costs tied to equity awards. 1
The proposed sale is small relative to the stake disclosed in the same filing — about 0.02% of the 256.4 million shares the CEO reported owning — but it drew attention because Nebius is a volatile stock and investors have been sensitive to selling signals after its sharp run this year. 1
Nebius is a Netherlands-based “neocloud” provider — a specialist cloud company that rents out large amounts of GPU compute used to train and run AI models. It has been expanding capacity on the back of large contracts with Microsoft and Meta, Reuters has reported. 2
Co-founder Roman Chernin has framed those deals as part of a broader financing plan. “We signed those deals having in mind that we need to finance the rest,” he told Reuters earlier this month. 3
In its annual report, Nebius said it competes with AI-focused cloud providers such as CoreWeave, Crusoe and Lambda, and also with hyperscalers including Amazon, Google and Microsoft. 4
Broader AI-linked trading was mixed on Tuesday, with Nvidia down about 0.2% while Meta was up about 1.3% in afternoon trade. Traders said that left company-specific catalysts — like filings and contract updates — as the main drivers for smaller, higher-beta names.
Investors are watching for any additional insider-sale disclosures in coming sessions, and for whether Nebius shares hold near Tuesday’s intraday low around $84.66 after the planned year-end transactions. They also remain focused on updates to the company’s spending and capacity buildout after its last quarterly results highlighted rapid growth alongside heavy investment needs. 5
