Nebius CRO sells 26,886 shares in plan trades

Rhea-AI Filing Summary

Nebius Group N.V. (NBIS) reports that Chief Revenue Officer Marc Boroditsky sold Class A Shares in two open-market or private transactions made under a pre-arranged Rule 10b5-1 trading plan adopted on September 15, 2025. The sales covered 4,500 shares on June 15, 2026 and 22,386 shares on July 15, 2026 at stated per-share prices.

Insider Trade Summary 10b5-1

Net Seller: 26,886 shares

Net Sell 2 txns

Insider Boroditsky Marc

Role Chief Revenue Officer

Sold 26,886 shs ($5.54M)

Type	Security	Shares	Price	Value
Sale	Class A Shares F1	22,386	$197.00	$4.41M
Sale	Class A Shares F1	4,500	$250.00	$1.13M

Holdings After Transaction: Class A Shares — 0 shares (Direct)

Footnotes (1)

1. F1. The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025.

Key Figures

Shares sold July 15, 2026: 22,386 Class A Shares Price per share July 15, 2026: $197.00 per share Shares sold June 15, 2026: 4,500 Class A Shares +3 more

6 metrics

Shares sold July 15, 2026 22,386 Class A Shares Sale by the chief revenue officer on July 15, 2026

Price per share July 15, 2026 $197.00 per share Sale of 22,386 Class A Shares on July 15, 2026

Shares sold June 15, 2026 4,500 Class A Shares Sale by the chief revenue officer on June 15, 2026

Price per share June 15, 2026 $250.00 per share Sale of 4,500 Class A Shares on June 15, 2026

Total shares sold in reported transactions 26,886 Class A Shares Combined sales on June 15, 2026 and July 15, 2026

Rule 10b5-1 plan adoption date September 15, 2025 Date the trading plan governing these sales was adopted

Key Terms

Rule 10b5-1 trading plan, Class A Shares, open market or private transaction

3 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 on September 15, 2025."

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.

Class A Shares financial

"The reported transactions involve Class A Shares of Nebius Group N.V."

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.

open market or private transaction financial

"Each sale is described as a sale in open market or private transaction."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Nebius Group N.V. (NBIS) disclose in this Form 4?

The company disclosed that Chief Revenue Officer Marc Boroditsky sold 4,500 Class A Shares on June 15, 2026 and 22,386 Class A Shares on July 15, 2026 in open-market or private transactions.

At what prices were the NBIS Class A Shares sold by the chief revenue officer?

The filing states that Marc Boroditsky sold 4,500 Class A Shares at $250.00 per share on June 15, 2026 and 22,386 Class A Shares at $197.00 per share on July 15, 2026.

Were the NBIS insider share sales made under a Rule 10b5-1 trading plan?

Yes. The filing states that the sales were made pursuant to a Rule 10b5-1 trading plan adopted by Marc Boroditsky on September 15, 2025.

What is the total number of NBIS shares sold by the chief revenue officer in this Form 4?

Across the reported transactions, Marc Boroditsky sold a total of 26,886 Class A Shares of Nebius Group N.V.

Does the Form 4 state how many NBIS shares the insider owns after these sales?

The reported transactions do not state a specific number of shares held after the transactions; only the sale amounts and prices are provided for the two dates.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/21/2026 - 05:17 PM Accepted by SEC EDGAR 09/21/2026 - 05:17 PM Learn about SEC filing dates

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^*

Boroditsky Marc

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

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	06/15/2026		S		4,500(1)	D	$250	22,386	D
Class A Shares	07/15/2026		S		22,386(1)	D	$197	0	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 September 15, 2025.

Remarks:

The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2025.

	/s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky	09/18/2026
	** 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)