NBIS

Nebius Group N.V.

NasdaqTechnologyServices-Computer Programming, Data Processing, Etc.

Insider activity for last month from 09/19 to 10/19.

How these metrics are calculated

Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Total buying$50.3k2 buys
Total selling$138M17 sells
Net open-market−$138MBuying minus selling
Active insiders7Distinct reporting owners

Insider activity report

Calendar-month buckets within the selected date range

Latest filing: Oct 16, 2026

Open-market transaction mix · 19 transactions in the selected period
2 buys11%·89%17 sells

Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.

View exact monthly counts and disclosed values
Monthly activity within the selected period; unknown values remain unknown.
MonthBuysSellsAwards (A)Buy valueSell valueNet P/S value
Sep 2026010$0$11.7k-$11.7k
Oct 20262160$50.3k$138M-$138M

Distinct insiders active

Reporting-owner CIKs by month · peak Oct 2026 (6)
Sep 2026: 1 insidersOct 2026: 6 insiders
Sep 2026Oct 2026
7distinct insiders in selected period
Largest insider activity
By absolute net disclosed value · current transaction page
5 insiders
  • NO
    Nave OphirCOO · 0 buys · 12 sells · 0 awards (A)
    -$117.8Mlast 10/06/2026
  • VA
    Volozh ArkadiyCEO · 0 buys · 1 sells · 0 awards (A)
    -$8.8Mlast 10/05/2026
  • KA
    Korolenko AndreyCIO · 0 buys · 1 sells · 0 awards (A)
    -$6.8Mlast 10/05/2026
  • SD
    Shtan DanilaCTO · 0 buys · 1 sells · 0 awards (A)
    -$3.4Mlast 10/05/2026
  • BM
    Boroditsky MarcCRO · 0 buys · 1 sells · 0 awards (A)
    -$1.5Mlast 10/13/2026

NBIS transaction history

Newest filings · 20 transactions per page

Latest insider transactions

Form 4 filings from last month.
Newest company filings
CompanyInsiderActivityDisclosed valueFiled (ET)
NBISNebius Group N.V.
Grimme ArneDIRP · buy10b5-1 detectedSEC filing ↗$25.1kView disclosure →
NBISNebius Group N.V.
Grimme ArneDIRP · buy10b5-1 detectedSEC filing ↗$25.1kView disclosure →
NBISNebius Group N.V.
Boroditsky MarcCROM · exercise10b5-1 detectedDerivative securitySEC filing ↗$0View disclosure →
NBISNebius Group N.V.
Boroditsky MarcCROS · sale10b5-1 detectedSEC filing ↗-$1.47MView disclosure →
NBISNebius Group N.V.
Boroditsky MarcCROM · exercise10b5-1 detectedSEC filing ↗$0View disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$1.46MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$289kView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$3.56MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$11.4MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$11.5MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$4.32MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$17.3MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$25.1MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$11.4MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$13.1MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$14.2MView disclosure →
NBISNebius Group N.V.
Nave OphirCOOS · sale10b5-1 detectedSEC filing ↗-$3.74MView disclosure →
NBISNebius Group N.V.
Korolenko AndreyCIOS · saleSEC filing ↗-$6.81MView disclosure →
NBISNebius Group N.V.
Shtan DanilaCTOS · saleSEC filing ↗-$3.40MView disclosure →
NBISNebius Group N.V.
Volozh ArkadiyCEOS · saleSEC filing ↗-$8.84MView disclosure →
Recent filing activity
Most recent 6 transactions on this page · color = transaction code

Filing detail checks

Secondary metrics for the selected period
Largest buy$25.1k
Largest sale$25.1M
10b5-1 detected18
Amended rows0

Transaction codes

By Form 4 transaction code in selected period
21transactionstxns
  • S · Open-market sells · dominant17 · 81%
  • M · Option exercise2 · 10%
  • P · Open-market buys2 · 10%

Activity by reported role

A joint filing can contribute to multiple roles
COO12
CRO3
Director3
Chief executive officer1
CIO1
CTO1

Reported Holdings After

Separated by insider, security, and ownership type

Nave OphirClass A Shares · Direct
938.5k454.7kOct 05, 2026Oct 05, 2026
454,685Oct 05, 2026
Boroditsky MarcClass A Shares · Direct
7.0k0Oct 12, 2026Oct 12, 2026
0Oct 12, 2026
Grimme ArneClass A Shares · Direct
6.2k6.0kOct 15, 2026Oct 16, 2026
6,181Oct 16, 2026
Volozh ArkadiyClass A Shares · Direct
785.2k785.2kOct 01, 2026Oct 01, 2026
785,236Oct 01, 2026
Shtan DanilaClass A Shares · Direct
260.2k260.2kOct 01, 2026Oct 01, 2026
260,217Oct 01, 2026
Korolenko AndreyClass A Shares · Direct
522.2k522.2kOct 01, 2026Oct 01, 2026
522,248Oct 01, 2026
Boroditsky MarcStock Options · Direct
336.0k336.0kOct 12, 2026Oct 12, 2026
336,000Oct 12, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells red
4 active days
Sep 19 → Oct 19
LessMore

Nebius Group N.V. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at Nebius Group N.V.?

Grimme Arne, Boroditsky Marc, Nave Ophir, Korolenko Andrey, Shtan Danila, Volozh Arkadiy, Boynton John Wilson IV.

When was the latest reported open-market purchase?

Grimme Arne reported a buy on Oct 16, 2026 valued at $25.1k. Read the SEC filing.

When was the latest reported open-market sale?

Boroditsky Marc reported a sale on Oct 12, 2026 valued at $1.47M. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $138,269,413.36. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.