Nebius Group (NBIS) director Elena Bunina sells 5,882 shares under 10b5-1 plan

Rhea-AI Filing Summary

Nebius Group N.V. director Elena Bunina reported an open-market sale of 5,882 Class A Shares at $170.00 per share. After this transaction, she directly holds 32,485 Class A Shares. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.

Insider Trade Summary 10b5-1

Net Seller: 5,882 shares ($999,940)

Net Sell 1 txn

Insider Bunina Elena

Role null

Sold 5,882 shs ($1000K)

Type	Security	Shares	Price	Value
Sale	Class A Shares	5,882	$170.00	$1000K

Holdings After Transaction: Class A Shares — 32,485 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 5,882 shares Sale price: $170.00 per share Shares held after sale: 32,485 shares +1 more

4 metrics

Shares sold 5,882 shares Open-market sale of Class A Shares on 2026-05-04

Sale price $170.00 per share Price for the 5,882 Class A Shares sold

Shares held after sale 32,485 shares Director’s direct Class A Share holdings following transaction

Form type Form 4 Insider transaction report for Nebius Group N.V.

Key Terms

Rule 10b5-1 trading plan, open-market sale, Class A Shares, Form 4

4 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Class A Shares financial

"security_title": "Class A Shares""

Class A shares are one of a company’s distinct types of stock that come with a specific set of rights—commonly different voting power, dividend treatment, or transfer rules—defined in the company’s charter. Investors care because those rights affect control, income and resale value; like holding a seat at a table that has different rules or stronger chips than other seats, owning Class A changes how much influence and return you can expect.

Form 4 regulatory

"The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bunina Elena

(Last) (First) (Middle)

SCHIPHOL BOULEVARD 165

(Street)

SCHIPHOL 1118BG

(City) (State) (Zip)

NETHERLANDS

(Country)

2. Issuer Name and Ticker or Trading Symbol
Nebius Group N.V. [ NBIS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Shares	05/04/2026		S		5,882(1)	D	$170	32,485	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 24, 2025.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Anna Akimova, attorney-in fact for Ms. Bunina	05/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Nebius Group N.V. (NBIS) report for Elena Bunina?

Nebius Group N.V. disclosed that director Elena Bunina executed an open-market sale of 5,882 Class A Shares at $170.00 per share. This Form 4 filing records the details and her resulting direct ownership position.

How many Nebius Group (NBIS) shares does Elena Bunina hold after the reported sale?

Following the sale, director Elena Bunina directly holds 32,485 Class A Shares of Nebius Group N.V. The Form 4 filing shows this as her direct ownership after selling 5,882 shares in an open-market transaction.

Was the Nebius Group (NBIS) insider sale by Elena Bunina under a Rule 10b5-1 plan?

Yes. The filing notes the sales were made under a Rule 10b5-1 trading plan adopted by the reporting person. Such pre-arranged plans automate trading according to preset instructions, helping separate routine portfolio management from discretionary timing decisions.

What price did Nebius Group (NBIS) director Elena Bunina receive per share in the sale?

The Form 4 states that 5,882 Class A Shares of Nebius Group N.V. were sold at a price of $170.00 per share. This represents the transaction price for the open-market sale reported in the filing.

What does a Form 4 filing like Nebius Group (NBIS) show about insider activity?

A Form 4 filing details insider trades such as purchases, sales, or grants involving company securities. For Nebius Group N.V., it documents director Elena Bunina’s recent share sale, including share count, transaction price, ownership type, and post-transaction holdings.