SEC ownership of Nebius Group N.V.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001513845.

Comparable stake leader

NVIDIA CORP

Disclosed value leader

NVIDIA CORP

Comparable rows

4/50

Latest evidence

01 Oct 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
4 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
NVIDIA CORP
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
01 Oct 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001513845
Issuer location
Amsterdam

Ownership snapshot

Top shareholders of Nebius Group N.V. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
NVIDIA CORP
Disclosed value leader
NVIDIA CORP
Comparable rows
4/50
Latest evidence
01 Oct 2026
13D/G 13F 3/4/5 Lead comparable stake: 9.3% 46 rows are not safely comparable across share classes. 13D/G row: NVIDIA CORP Showing 1-8 of 50 holder rows.

Quick read

NVIDIA CORP leads the comparable SEC ownership view at 9.3%.

4 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens NVIDIA CORP's linked filing trail.
Comparable ownership Top 4
NVIDIA CORP 9.3%
Situational Awareness LP 5.6%
GOLDMAN SACHS GROUP INC 5.1%
ORBIS INVESTMENT MANAGEMENT LTD 1.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
NVIDIA CORP
13D/G 13F
NVIDIA Corporation · Company
9.3%
Reported 13D/G · 13 Jul 2026
$6,146,553,302
22,256,412 shares
$0 13 Jul 2026
Situational Awareness LP
13D/G 13F
Company
5.6%
Reported 13D/G · 19 May 2026
$1,798,962,298
12,410,060 shares
$0 19 May 2026
GOLDMAN SACHS GROUP INC
13D/G 13F
THE GOLDMAN SACHS GROUP, INC. · Company
5.1%
Reported 13D/G · 30 Sep 2026
$3,071,892,576
13,023,110 shares
-$2,379,558,921 30 Sep 2026
ORBIS INVESTMENT MANAGEMENT LTD
13D/G
Orbis Investment Management Limited
1.5%
Reported 13D/G · 31 Dec 2025
$351,646,794
3,335,358 shares
-$996,639,806 31 Dec 2025
Arkadiy Volozh
3/4/5
CEO, Director, 10%+ Owner
—
mixed-class rows
$183,870,861
29,440,745 shares
mixed-class rows
-$23,284,696 01 Oct 2026
BlackRock, Inc.
13F
Company
13F
—
denominator unverified
$3,184,590,799
11,531,270 shares
— 30 Jun 2026
Invesco Ltd.
13F
Company
13F
—
denominator unverified
$1,917,522,837
6,943,270 shares
— 30 Jun 2026
Orbis Allan Gray Ltd
13F
Company
13F
—
denominator unverified
$1,793,646,546
6,494,719 shares
— 30 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$319,242,858.

Buys
$330,440
Insiders: 1
Sells
$319,573,298
Insiders: 10
Net
-$319,242,858
Shares: -1,498,198
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 2,014 Shares: 1,500,212
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 2,014 665,187 $330,440 $157,273,121 -$156,942,681
3-6 0 685,548 $0 $144,328,037 -$144,328,037
6-9 0 149,477 $0 $17,972,140 -$17,972,140
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to Nebius Group N.V.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
15
Largest Forms 3/4/5 holder
Arkadiy Volozh
Net 12M change
-$319.24MFull value: -$319,242,858 · USD · 12-month change
Latest report
29 Oct 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Arkadiy Volozh CEO, Director, 10%+ Owner $183,870,861 -$23,284,696 -11% Filing P/S 01 Oct 2026
Andrey Korolenko Chief Infrastructure Officer $122,289,591 -$122,558,111 -50% Filing P/S 01 Oct 2026
Ophir Nave COO, Director $110,715,797 -$117,765,468 -52% Filing P/S 05 Oct 2026
Charles E. Ryan Director $75,638,820 -$13,276,633 -15% Mixed 01 Sep 2026
John Wilson Boynton IV Director $74,499,520 -$6,975,665 -8.6% Mixed 29 Oct 2026
Danila Shtan Chief Technology Officer $60,932,412 -$12,472,737 -17% Filing P/S 01 Oct 2026
Roman Chernin Chief Business Officer $32,775,000 Mixed 18 Mar 2026
Boaz Tal General Counsel $16,070,788 -$1,316,787 -7.6% Filing P/S 20 May 2026
Kira Radinsky Director $4,626,952 Mixed 01 Sep 2026
Matthew Robert Weigand Director $4,138,959 Mixed 01 Sep 2026
Elena Bunina Director $3,348,285 -$8,261,325 -71% Mixed 01 Sep 2026
Ms. Alonso Sanchez Cfo $2,391,592 -$508,906 -18% Filing P/S 01 Sep 2026
Yael Almog General Counsel $2,152,192 Mixed 22 Jul 2026
Arne Grimme Director $1,338,248 +$330,440 +33% Filing P/S 29 Oct 2026
Marc Boroditsky Chief Revenue Officer $0 -$13,152,970 -100% Mixed 12 Oct 2026

Recent insider transactions for Nebius Group N.V.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
John Wilson Boynton IV NBIS Class A Shares Sale -0.08% -$57,632 $173.07 -333 403,189 29 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 1.91% $25,074 $169.42 148 7,899 29 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 1.95% $25,136 $169.84 148 7,751 28 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 2.77% $32,603 $159.04 205 7,603 27 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 2.89% $32,024 $153.96 208 7,398 26 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 2.93% $32,591 $158.98 205 7,190 23 Oct 2026 Direct
Arne Grimme NBIS Class A Shares Purchase 5.39% $57,823 $161.97 357 6,985 22 Oct 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Purchase 2.28% $24,855 $167.94 148 6,628 21 Oct 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Purchase 2.39% $24,858 $164.62 151 6,480 20 Oct 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Purchase 2.39% $25,159 $169.99 148 6,329 19 Oct 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Purchase 2.45% $25,159 $169.99 148 6,181 16 Oct 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -1.77% -$1,289,586 $177.63 -7,260 403,522 15 Oct 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Purchase 2.51% $25,159 $169.99 148 6,033 15 Oct 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -100% -$1,478,610 $211.23 -7,000 0 12 Oct 2026 Direct
Marc Boroditsky NBIS Class A Shares Options Exercise 7,000 7,000 12 Oct 2026 Direct
Marc Boroditsky NBIS Stock Options Options Exercise -2.04% -7,000 336,000 12 Oct 2026 Direct
Ophir Nave NBIS Class A Shares Sale -52.4% -$117,765,468 $235.53 -500,000 454,685 05 Oct 2026 Direct
Andrey Korolenko NBIS Class A Shares Sale -5.28% -$6,811,714 $234.16 -29,090 522,248 01 Oct 2026 Direct
Danila Shtan NBIS Class A Shares Sale -5.29% -$3,406,091 $234.16 -14,546 260,217 01 Oct 2026 Direct
Arkadiy Volozh NBIS Class A Shares Sale -4.59% -$8,846,096 $234.16 -37,778 785,236 01 Oct 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -0.01% -$11,750 $235.01 -50 410,782 29 Sep 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -1.53% -$1,338,712 $210.36 -6,364 410,832 15 Sep 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -100% -$1,463,560 $209.08 -7,000 0 14 Sep 2026 Direct
Marc Boroditsky NBIS Class A Shares Options Exercise 7,000 5,000 14 Sep 2026 Direct
Marc Boroditsky NBIS Stock Options Options Exercise -2% -7,000 343,000 14 Sep 2026 Direct
Matthew Robert Weigand NBIS Class A Shares Award 9.92% 1,352 14,987 01 Sep 2026 Direct
Charles E. Ryan NBIS Class A Shares Award 0.5% 1,352 273,885 01 Sep 2026 Direct
Mr. Arne Grimme NBIS Class A Shares Award 29.8% 1,352 5,885 01 Sep 2026 Direct
Kira Radinsky NBIS Class A Shares Award 8.78% 1,352 16,754 01 Sep 2026 Direct
Elena Bunina NBIS Class A Shares Award 12.6% 1,352 12,124 01 Sep 2026 Direct
Ophir Nave NBIS Class A Shares Award 0.14% 1,352 954,685 01 Sep 2026 Direct
Arkadiy Volozh NBIS Class A Shares Award 0.16% 1,352 823,014 01 Sep 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Award 0.33% 1,352 417,196 01 Sep 2026 Direct
Ms. Alonso Sanchez NBIS Class A Shares Sale -3.71% -$92,120 $196.00 -470 12,202 01 Sep 2026 Direct
Charles E. Ryan NBIS Class A Shares Sale -15.5% -$13,276,633 $265.53 -50,000 272,533 14 Aug 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -1.26% -$1,435,147 $270.99 -5,296 415,844 14 Aug 2026 Direct
Yael Almog NBIS Class A Shares Award 7,793 7,793 22 Jul 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -100% -$4,410,042 $197.00 -22,386 0 15 Jul 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -1.63% -$1,370,744 $197.00 -6,958 421,140 15 Jul 2026 Direct
Arkadiy Volozh NBIS Class A Shares Sale -5.37% -$10,978,327 $235.45 -46,627 821,662 01 Jul 2026 Direct
Danila Shtan NBIS Class A Shares Sale -5.81% -$3,987,817 $235.45 -16,937 274,763 01 Jul 2026 Direct
Andrey Korolenko NBIS Class A Shares Sale -5.79% -$7,974,927 $235.45 -33,871 551,338 01 Jul 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -16.7% -$1,125,000 $250.00 -4,500 22,386 15 Jun 2026 Direct
John Wilson Boynton IV NBIS Class A Shares Sale -1.34% -$1,472,093 $253.29 -5,812 428,098 15 Jun 2026 Direct
Danila Shtan NBIS Class A Shares Sale -5.1% -$3,746,448 $238.96 -15,678 291,700 04 Jun 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -28.6% -$2,976,333 $276.20 -10,776 26,886 02 Jun 2026 Direct
Ms. Alonso Sanchez NBIS Class A Shares Sale -10.6% -$416,786 $276.20 -1,509 12,672 02 Jun 2026 Direct
Boaz Tal NBIS Class A Shares Sale -5.94% -$1,016,905 $199.39 -5,100 80,754 20 May 2026 Direct
Marc Boroditsky NBIS Class A Shares Sale -10.7% -$978,975 $217.55 -4,500 37,662 15 May 2026 Direct
Andrey Korolenko NBIS Class A Shares Sale -46.1% -$101,620,000 $203.24 -500,000 585,209 13 May 2026 Direct
* marks a reported price that did not pass the local price check.
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