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NBIS Insider Trading & Form 4 Activity

Nebius Group N.V.
Last filing: Oct 21, 2026·3 days ago
BEARISH · LAST 90 DAYS
12%
buyers
$125K
5 buys
$35.7M
36 sells
-$35.5M
net selling
7
insiders
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ACTIVE SELLING CLUSTER

4 insiders sold a combined $19.7M of NBIS between Oct 1, 2026 and Oct 15, 2026.

Volozh Arkadiy, Shtan Danila, Korolenko Andrey, Boynton John Wilson IV

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Nave Ophir
COO
—
$117.8M
-$117.8M
Ryan Charles E
Insider
—
$13.3M
-$13.3M
Volozh Arkadiy
CEO
—
$8.8M
-$8.8M
Korolenko Andrey
Chief Infrastructure Officer
—
$6.8M
-$6.8M
Shtan Danila
Chief Technology Officer
—
$3.4M
-$3.4M
Boynton John Wilson IV
Insider
—
$3.2M
-$3.2M
Boroditsky Marc
Chief Revenue Officer
—
$2.9M
-$2.9M
Grimme Arne
Insider
$125K
—
$125K

Recent transactions

Every Form 4 transaction for NBIS, newest first.

BUY10b5-1
Grimme Arne · Insider
Tx Oct 21·Filed Oct 21·EDGAR ↗
148 sh @ $167.94
$25K
BUY10b5-1
Grimme Arne · Insider
Tx Oct 20·Filed Oct 21·EDGAR ↗
151 sh @ $164.62
$25K
BUY10b5-1
Grimme Arne · Insider
Tx Oct 19·Filed Oct 20·EDGAR ↗
148 sh @ $169.99
$25K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
960 sh @ $188.20
$181K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
100 sh @ $168.57
$17K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
400 sh @ $171.38
$69K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
700 sh @ $176.72
$124K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
500 sh @ $166.78
$83K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
200 sh @ $164.80
$33K
SELL
Boynton John Wilson IV · Insider
Tx Oct 15·Filed Oct 19·EDGAR ↗
600 sh @ $180.26
$108K
BUY10b5-1
Grimme Arne · Insider
Tx Oct 16·Filed Oct 16·EDGAR ↗
148 sh @ $169.99
$25K
BUY10b5-1
Grimme Arne · Insider
Tx Oct 15·Filed Oct 16·EDGAR ↗
148 sh @ $169.99
$25K
SELL10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Oct 12·Filed Oct 13·EDGAR ↗
7,000 sh @ $211.23
$1.5M
EXERCISE10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Oct 12·Filed Oct 13·EDGAR ↗
7,000 sh
—
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
16,220 sh @ $231.12
$3.7M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
73,588 sh @ $235.99
$17.4M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
48,655 sh @ $238.22
$11.6M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
14,853 sh @ $240.00
$3.6M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
18,224 sh @ $237.15
$4.3M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
61,210 sh @ $232.37
$14.2M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
56,426 sh @ $233.19
$13.2M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
1,200 sh @ $241.02
$289K
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
106,718 sh @ $235.24
$25.1M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
48,061 sh @ $239.23
$11.5M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
48,845 sh @ $234.21
$11.4M
SELL10b5-1
Nave Ophir · COO
Tx Oct 5·Filed Oct 6·EDGAR ↗
6,000 sh @ $243.50
$1.5M
SELL
Volozh Arkadiy · CEO
Tx Oct 1·Filed Oct 5·EDGAR ↗
37,778 sh @ $234.16
$8.8M
SELL
Shtan Danila · Chief Technology Officer
Tx Oct 1·Filed Oct 5·EDGAR ↗
14,546 sh @ $234.16
$3.4M
SELL
Korolenko Andrey · Chief Infrastructure Officer
Tx Oct 1·Filed Oct 5·EDGAR ↗
29,090 sh @ $234.16
$6.8M
SELL10b5-1
Boynton John Wilson IV · Insider
Tx Sep 29·Filed Oct 1·EDGAR ↗
50 sh @ $235.01
$12K
SELL10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Jul 15·Filed Sep 21·EDGAR ↗
22,386 sh @ $197.00
$4.4M
SELL10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Jun 15·Filed Sep 21·EDGAR ↗
4,500 sh @ $250.00
$1.1M
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
100 sh @ $216.52
$22K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
1,264 sh @ $207.67
$262K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
300 sh @ $213.40
$64K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
1,100 sh @ $209.74
$231K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
400 sh @ $210.53
$84K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
900 sh @ $214.81
$193K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
200 sh @ $211.88
$42K
SELL
Boynton John Wilson IV · Insider
Tx Sep 15·Filed Sep 17·EDGAR ↗
1,900 sh @ $208.84
$397K
SELL10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
2,000 sh @ $208.63
$417K
EXERCISE10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
5,000 sh
—
SELL10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
5,000 sh @ $209.26
$1.0M
EXERCISE10b5-1
Boroditsky Marc · Chief Revenue Officer
Tx Sep 14·Filed Sep 16·EDGAR ↗
2,000 sh
—
AWARD
Boynton John Wilson IV · Insider
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—
AWARD
Grimme Arne · Insider
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—
AWARD
Weigand Matthew Robert · Insider
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—
AWARD
Nave Ophir · COO
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—
AWARD
Radinsky Kira · Insider
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—
AWARD
Bunina Elena · Insider
Tx Sep 1·Filed Sep 3·EDGAR ↗
1,352 sh
—

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About NBIS insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for NBIS from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying NBIS always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Nebius Group N.V. (NBIS) when they form.

Where does NBIS insider trading data come from?

Every Form 4 filing for NBIS is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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