NEW YORK, December 31, 2025, 15:20 ET — Regular session
- Nebius shares fall nearly 2% in afternoon trade as insider sale notices surface
- Co-founder Arkady Volozh proposes selling 41,000 shares; three other insiders also file
- Thin year-end trading keeps focus on any added supply in high-volatility AI infrastructure names
Nebius Group N.V. shares slipped on Wednesday as investors weighed insider notices to sell stock. The Nasdaq-listed shares were down about 1.9% at $83.59 in afternoon trading.
The filings hit during year-end trading, when liquidity is typically thin and moves can be exaggerated. Nebius, a Netherlands-based data center operator, has drawn outsized attention as a “neocloud” provider — a firm that rents out high-end computing power for AI — after landing multi-billion-dollar infrastructure contracts with Microsoft and Meta Platforms. 1
That backdrop makes insider supply a live issue, even when the transactions are routine. Traders in AI infrastructure have also been sensitive to anything that looks like an overhang, from stock sales to potential dilution.
A Form 144 filed with the U.S. Securities and Exchange Commission showed Arkady Volozh — listed as an officer, director and 10% shareholder — proposed selling 41,000 Class A ordinary shares worth about $3.59 million through Citigroup Global Markets. The filing also listed a prior sale of 81,191 shares on Oct. 1. 2
Separate Form 144 notices showed non-executive director Elena Bunina and officer Nave Ophir each proposed selling 2,300 shares, while director Kira Radinsky proposed selling 500 shares. The filings described the transactions as “sell to cover” — sales used to pay taxes or costs tied to stock awards — and the remarks referenced Jan. 2, 2026. 3
Form 144 is a notice of intent, not proof a sale has been executed. Still, in a market driven by positioning, even small planned sales can weigh when order books are thin and investors are prone to de-risk.
The broader market was also subdued, with Wall Street’s main indexes edging lower as technology stocks slipped in holiday-thin trading, Reuters reported. “It’s perfectly fine in any bull market to have moments of cost,” said Giuseppe Sette, co-founder and president of Reflexivity, pointing to profit-taking when liquidity was low. 4
Nebius closed at $85.17 on Tuesday, leaving the stock down roughly $1.6 from the prior close at Wednesday’s levels. 5
Beyond the filings, investors continue to treat Nebius as a read-through on demand for graphics processing units, or GPUs — the chips that train and run AI models. Reuters has reported that Nebius’ Meta deal put it in the same “neocloud” lane as rival CoreWeave, while even hyperscalers such as Microsoft and Amazon have faced capacity constraints. 6
What traders are watching next is whether insider selling remains limited to sell-to-cover transactions or broadens, and whether the stock steadies once markets reopen on Friday after the New Year’s Day holiday.
Attention will also stay on any update that clarifies the pace of data-center buildout and how quickly the big contracts translate into revenue versus cash burn, with spending and financing the key swing factors for the AI infrastructure trade.
Nebius has not confirmed a date for its next earnings release, but MarketBeat estimates the report around Feb. 18, 2026 based on prior reporting dates. Guidance on capacity additions and capital spending is likely to be the main catalyst investors circle. 7
On the chart, traders are watching whether the stock holds above Wednesday’s low near $83.5 and whether it can reclaim the $85 area from Tuesday’s close. A clean break either way could set the tone once holiday volumes normalize next week.
