Marc Boroditsky - 14 Sep 2026 Form 4 Insider Report for Nebius Group N.V. (NBIS)

Reporting relationship: Chief Revenue Officer
Issuer ticker: NBIS
Reported as of: 14 Sep 2026
Net transaction value: -$1,463,560
SEC form: 4
Accepted by SEC: 16 Sep 2026, 18:09:25 UTC
Prior SEC filing: 10 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky

Key filing fact

Marc Boroditsky filed Form 4 for Nebius Group N.V. (NBIS) on 16 Sep 2026.

Key facts

This page summarizes Marc Boroditsky's Form 4 filing for Nebius Group N.V. (NBIS).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 16 Sep 2026, 18:09.

Change

Previous filing in this sequence was filed on 10 Jun 2026.
Current net transaction value: -$1,463,560.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001779922 Primary reporting owner

Boroditsky Marc

Relationship: Chief Revenue Officer
Address: SCHIPHOL BOULEVARD 165, SCHIPHOL, NETHERLANDS
Signature: /s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky
Signature date: 16 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NBIS transaction

Class A Shares

Options Exercise

Transaction value
Shares: +5,000
Change %
Price: $0.000000^*
Shares after: 5,000
Date: 14 Sep 2026
Ownership: Direct

NBIS transaction

Class A Shares

Sale

Transaction value: $1,046,300
Shares: -5,000
Change %: -100%
Price: $209.26
Shares after: 0
Date: 14 Sep 2026
Ownership: Direct
Footnotes: F1

NBIS transaction

Class A Shares

Options Exercise

Transaction value
Shares: +2,000
Change %
Price: $0.000000^*
Shares after: 2,000
Date: 14 Sep 2026
Ownership: Direct

NBIS transaction

Class A Shares

Sale

Transaction value: $417,260
Shares: -2,000
Change %: -100%
Price: $208.63
Shares after: 0
Date: 14 Sep 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NBIS transaction Derivative

Stock Options

Options Exercise

Transaction value
Shares: -5,000
Change %: -1.4%
Price: $0.000000^*
Shares after: 345,000
Date: 14 Sep 2026
Ownership: Direct
Underlying class: Class A Shares
Underlying amount: 5,000
Exercise price: $40.00
Footnotes: F2

NBIS transaction Derivative

Stock Options

Options Exercise

Transaction value
Shares: -2,000
Change %: -0.58%
Price: $0.000000^*
Shares after: 343,000
Date: 14 Sep 2026
Ownership: Direct
Underlying class: Class A Shares
Underlying amount: 2,000
Exercise price: $40.00
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on 15 June 2026.

Footnote F2

The options vested in quarterly installments beginning on 31 May 2026.

SEC remarks

Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Act, the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act.