AI ForecastsInsider Intelligence
Data as of Sep 15, 2026
Current portfolio attention
NBISNebius Group N.V.
High attentionMixed, with net sellingMaterialityHighConfidenceHigh

Nebius’s $39.1 million recent selling is entirely plan-associated or mixed tax/open-market, limiting its directional information

Nebius recorded $39.12 million of sales across six insiders during June 18–September 15, versus $132.45 million in the prior comparable window. Validated transaction flags identify $16.08 million (41.1%) as plan-associated; the remaining $23.03 million is entirely mixed tax/open-market activity, not open-market selling with no identified plan.

Headline vs Reality

What the gross selling headline splits into once transaction mechanics are applied.

$39.12Mgross recent insider sales
  • Plan-associated

    $16.08M

    41.1% of gross

  • Open-market, no identified plan

    $0

    0.0% of gross

  • Mixed tax / open-market

    $23.03M

    58.9% of gross

How the signal changes after context

Activity interpretation scale. It is not a stock-price forecast or buy/sell recommendation.

  1. Raw selling activity

    -80.83

    Economic weight of validated insider buying and selling.

  2. After plan & transaction context

    -33.83

    Adjusts for trading-plan association and transaction mechanics.

  3. After recent-vs-prior trend

    -30.68

    Adds the comparison with the previous period. Trend: Material deceleration.

Recent vs previous period

Recent period

$39.12M

Jun 18, 2026 — Sep 15, 2026

Previous period

$132.45M

Mar 20, 2026 — Jun 17, 2026

Material deceleration29.5% of the previous period16 transactions · 6 sellers

What changed

  • The slowdown is uneven: Korolenko’s sales fell from $107.77 million to $7.97 million, while Volozh’s rose from $3.46 million to $10.98 million.

    Fact

  • Goldman’s August 7 Schedule 13G amendment reports a 3.3-percentage-point beneficial-ownership increase to 10.5%, repeated across its two reporting entities.

    Fact

Why it matters

  • Volozh, Korolenko and Shtan all sold July 1 at a reported average price of $235.45, but each event is mixed tax/open-market. Their synchronized timing is insufficient evidence of coordinated discretionary selling.

    Interpretation

  • Volozh declined the 2025 option opportunity, so that specific program cannot explain his July disposal. This does not override the validated mixed tax/open-market classification or establish that the sale was discretionary.

    Interpretation

Top signal contributors

The insiders whose validated activity shapes the current interpretation.

  • Arkadiy Volozh

    CEO

    $10.98M

    Mixed tax and open-market sale

    Sold 46,627 shares for $10.98 million on July 1 in a mixed tax/open-market transaction with no identified trading-plan link. His CEO role makes the activity more relevant, but the classification establishes neither a wholly tax-required disposal nor discretionary selling.

  • Charles E. Ryan

    Non-Executive Director

    $13.28M

    Plan-associated sale

    His 50,000-share, $13.28 million August 14 sale was entirely plan-associated. It remains a material realized disposal, but the plan flag on the transaction reduces the information content of its timing.

  • Andrey Korolenko

    Chief Product & Infrastructure Officer & Co-Founder

    $7.97M

    Mixed tax and open-market sale

    His current 33,871-share, $7.97 million sale is mixed tax/open-market. The fully matched 500,000-share May option exercise belongs to the prior window and should not be treated as a separate current selling decision.

Planned vs Executed

A Form 144 is a notice of a proposed sale. It is never added to realized selling.

Ryan’s August 14 and Boynton’s July 15/August 14 Form 144 notices have no confirmed execution. Separate Form 4 sales are validated; notice-to-sale matching is unresolved, not evidence that the reported sales failed.

  • John Wilson Boynton IV

    5,296 shares planned · Form 144 Aug 14, 2026

    Execution not confirmed

  • Charles E. Ryan

    50,000 shares planned · Form 144 Aug 14, 2026

    Execution not confirmed

  • John Wilson Boynton IV

    6,958 shares planned · Form 144 Jul 15, 2026

    Execution not confirmed

Alonso Sanchez’s August 31 notice has 450 planned shares fully matched to execution. Her September 1 Form 4 reports 470 shares sold; the 450-share match is not an additional sale.

  • Maria del Dado Alonso Sanchez

    450 shares planned · Form 144 Aug 31, 2026

    Execution confirmed

    450 shares matched

Watch Next

Items to monitor on future data refreshes. Alerts are not enabled.

  • AI Forecasts · System follow-upTo monitor

    Track future Form 4 filings for Volozh, Korolenko and Shtan, especially sales separate from mixed tax/open-market events.

    Would distinguish persistent open-market selling with no identified plan from repeated mixed activity.

    Target:Form 4 · Future filing required

    Monitoring scope: Future data refreshes

  • AI Forecasts · System follow-upTo monitor

    Watch for Form 4 execution evidence for Ryan’s and Boynton’s unconfirmed Form 144 notices.

    Clarifies execution attribution without adding planned shares to realized totals.

    Target:Form 4 · Not yet confirmed

    Monitoring scope: Future data refreshes

  • AI Forecasts · System follow-upTo monitor

    Track Goldman’s next Schedule 13G amendment and any updated NVIDIA warrant-exercisability disclosure.

    Separates ownership changes from warrant mechanics and reported ownership levels.

    Target:Schedule 13D/G or related ownership disclosure · Awaiting future disclosure

    Monitoring scope: Future data refreshes

Additional context

Derivative, compensation and disclosed-ownership background.

  • Previous-period context: Korolenko’s May 13 option exercise delivered 500,000 underlying shares, all matched to cash disposals, with zero unmatched shares. This fully reconciled exercise-and-sell lifecycle explains prior activity, not an additional current sale.

    Interpretation

  • Goldman’s two reporting entities disclose the same 10.5% position, not additive stakes. This beneficial-ownership disclosure is distinct from an executed open-market purchase or Section 16 management holding.

    Interpretation

  • NVIDIA’s July 20 9.3% disclosure includes 21,065,936 shares underlying a pre-funded warrant acquired March 11. Disclosed exercise restrictions and warrant exposure distinguish this ownership level from current period cash buying.

    Interpretation

  • Volozh’s September 1 Form 4 reports 823,014 post-transaction shares, confirming continuing reported exposure after his July sale. That figure does not establish total economic ownership or current voting control.

    Interpretation

Interpretation notes

What limits this reading, and how reliable it is.

ConfidenceHigh

Confidence is strongest in transaction existence and classification: Ryan’s sale is validated, while its Form 144 execution link remains unconfirmed. Korolenko’s incomplete award context and 50% historical ownership coverage limit exposure analysis.

Confidence describes reliability of the interpretation, not signal strength or expected returns.

  • The $23.03 million of sales not linked to an identified plan is entirely mixed tax/open-market. The available evidence does not establish how much was tax-required, so it is neither proven discretionary selling nor proven wholly mechanical disposal.

    Interpretation

  • Person-level plan status is not established in the supplied profiles, while Ryan and Boynton’s current sales carry 10b5-1 flags on the transactions. Those flags establish plan association, not adoption or expiration dates.

    Fact

Research and monitoring workflow. Not investment advice.