Nebius Group N.V.
Nebius Group N.V. (NBIS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · NBIS · as of Mar 31, 2025
Ownership Breakdown
371
Institutional Holders
▲ 49 vs Q4
$1.73B
Total Inst. Value
▼ $1.09B vs Q4
240.00M
Shares Outstanding
freeFloat 83.76%
80.93M
13F Shares Held
▼ 21.28M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
NBIS largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ORBIS ALLAN GRAY LTD services-computer programming, data processing, etc. | 15.70M | 6.60% | 6.60% | $331.47B | May 15, 2025 | ▼ 23.5K |
SLATE PATH CAPITAL LP services-computer programming, data processing, etc. | 5.90M | 2.48% | 2.48% | $124.64B | May 15, 2025 | ▲ 2.16M |
CITADEL ADVISORS LLC services-computer programming, data processing, etc. | 4.63M | 1.95% | 1.95% | $97.04B | May 15, 2025 | ▲ 301.5K |
ACCEL LEADERS 4 ASSOCIATES L.P. services-computer programming, data processing, etc. | 4.58M | 1.92% | 1.92% | $96.70B | May 13, 2025 | — held |
INVESCO LTD. services-computer programming, data processing, etc. | 3.50M | 1.47% | 1.47% | $73.78B | May 12, 2025 | ▲ 979.0K |
FRED ALGER MANAGEMENT, LLC services-computer programming, data processing, etc. | 3.19M | 1.34% | 1.34% | $67.43B | May 16, 2025 | ▼ 2.39M |
CITADEL ADVISORS LLC services-computer programming, data processing, etc. | 2.80M | 1.18% | 1.18% | $59.09B | May 15, 2025 | ▲ 1.75M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer programming, data processing, etc. | 2.70M | 1.13% | 1.13% | $56.99B | May 14, 2025 | ▲ 695.9K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer programming, data processing, etc. | 2.58M | 1.08% | 1.08% | $54.44B | May 14, 2025 | ▲ 1.06M |
CITADEL ADVISORS LLC services-computer programming, data processing, etc. | 2.42M | 1.02% | 1.02% | $51.08B | May 15, 2025 | ▲ 1.37M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
27
Increased
+18.48M shares7
New Positions
first time holders11
Decreased
−10.32M shares0
Sold Out
fully exitedNet shares change (top 50)
+8.17M
+18.48M / −10.32M
Net new holders
+23
7 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
NBIS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
20
Sell transactions
0.05
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Shtan Danila Chief Technology Officer | Jun 4, 2026 | Sale | 15,678 | $238.96 | $3.75M | 291.7K | Form 4 ↗ |
Boroditsky Marc Chief Revenue Officer | Jun 2, 2026 | Sale | 10,776 | $276.20 | $2.98M | 26.9K | Form 4 ↗ |
Alonso Sanchez Maria del Dado CFO | Jun 2, 2026 | Sale | 1,509 | $276.20 | $416.8K | 12.7K | Form 4 ↗ |
Tal Boaz General Counsel | May 20, 2026 | Sale | 2,600 | $199.00 | $517.4K | 83.3K | Form 4 ↗ |
Tal Boaz General Counsel | May 20, 2026 | Sale | 2,000 | $200.00 | $400.0K | 81.3K | Form 4 ↗ |
Tal Boaz General Counsel | May 20, 2026 | Sale | 500 | $199.01 | $99.5K | 80.8K | Form 4 ↗ |
Boroditsky Marc Chief Revenue Officer | May 15, 2026 | Sale | 4,500 | $217.55 | $979.0K | 37.7K | Form 4 ↗ |
Korolenko Andrey Chief Infrastructure Officer | May 13, 2026 | Sale | 500,000 | $203.24 | $101.62M | 585.2K | Form 4 ↗ |
Bunina Elena director | May 13, 2026 | Sale | 5,000 | $203.18 | $1.02M | 16.7K | Form 4 ↗ |
Bunina Elena director | May 13, 2026 | Sale | 5,894 | $210.00 | $1.24M | 10.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Nebius Group N.V. (NBIS) is primarily owned by institutional investors, who hold approximately 33.7% of total shares outstanding. Company insiders own approximately 16.24%, while retail and public investors account for the remaining 50.05%.
The largest institutional shareholder of Nebius Group N.V. is ORBIS ALLAN GRAY LTD, holding approximately 15.70 million shares — equal to 6.60% of outstanding shares — as of March 31, 2025.
A total of 371 institutional investors currently hold NBIS stock, with a combined institutional value of approximately $1.73 billion as of the most recent 13F filing period.
Frequently asked questions
NBIS ownershipNebius Group N.V. (NBIS) is primarily owned by institutional investors, who hold approximately 33.7% of shares. The largest shareholder is ORBIS ALLAN GRAY LTD with a 6.60% stake. Company insiders hold 16.24%. Data sourced from SEC Form 13F as of March 31, 2025.