Who owns Nebius (NBIS)?
112 holders named in SEC filings declare between 55.3% and 77.2% of Nebius' shares outstanding, as of Oct 1, 2026. The largest are Arkadiy Volozh (11.6%), NVIDIA Corporation (8.8%) and BlackRock (4.6%); the five largest hold 31.6% together. Another 954 institutions hold small positions worth 5.3%. At least 17.5% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 20.4% and sold 8.1% of the shares, a net purchase of 12.2%; 378 opened a position, 275 added, 270 reduced and 56 sold out. Biggest buyers: Goldman Sachs (+6.7M shares) and Invesco (+5.2M shares). Biggest sellers: FRED ALGER MANAGEMENT, LLC (-3.9M) and Capital Group (-3.4M). Schedule 13D/G filings since Mar 31, 2026: NVIDIA Corporation crossed 5% (8.8%) on Jul 13, 2026. Directors and officers, from their latest Form 4: Arkadiy Volozh (11.6%) and Ophir Nave (0.38%). Over time, 1,038 managers declared Nebius in their 13F for Q2 2026, against 3 for Q4 2019: together at most 61.3% of the shares outstanding, against 0.04%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Arkadiy Volozh | Form 4 | 11.6% | Oct 1, 2026 | — |
| NVIDIA Corporation | 13G | 8.8% | Jul 13, 2026 | — |
| BlackRock | 13F | 4.6% | Jun 30, 2026 | Q3 2024 |
| Goldman Sachs | 13F | 3.9% | Jun 30, 2026 | Q3 2024 |
| Invesco | 13F | 2.7% | Jun 30, 2026 | Q3 2024 |
| Orbis Allan Gray Ltd | 13F | 2.6% | Jun 30, 2026 | Q3 2024 |
| Bank of America | 13F | 2.4% | Jun 30, 2026 | Q3 2024 |
| Value Aligned Research Advisors, LLC | 13F | 2.4% | Jun 30, 2026 | Q4 2024 |
| FRED ALGER MANAGEMENT, LLC | 13F | 2.3% | Jun 30, 2026 | Q4 2024 |
| UBS | 13F | 2.1% | Jun 30, 2026 | Q3 2024 |
| Situational Awareness LP | 13F | 1.8% | Jun 30, 2026 | Q2 2026 |
| Lone Pine Capital LLC | 13F | 1.7% | Jun 30, 2026 | Q2 2026 |
| State Street | 13F | 1.6% | Jun 30, 2026 | Q3 2024 |
| JPMorgan | 13F | 1.6% | Jun 30, 2026 | Q3 2024 |
| JENNISON ASSOCIATES LLC | 13F | 1.6% | Jun 30, 2026 | Q1 2026 |
| Morgan Stanley | 13F | 1.5% | Jun 30, 2026 | Q3 2024 |
| Accel Leaders 4 Associates L.P. | 13F | 1.4% | Jun 30, 2026 | Q4 2024 |
| Clear Street Group Inc. | 13F | 1.4% | Jun 30, 2026 | Q3 2025 |
| Norges Bank | 13F | 1.2% | Jun 30, 2026 | Q3 2024 |
| Janus Henderson | 13F | 1.0% | Jun 30, 2026 | Q3 2025 |
| Accel Leaders 3 Associates L.P. | 13F | 0.89% | Jun 30, 2026 | Q4 2025 |
| Geode Capital | 13F | 0.84% | Jun 30, 2026 | Q2 2025 |
| Amundi | 13F | 0.79% | Jun 30, 2026 | Q3 2024 |
| Rovida Investment Management Ltd | 13F | 0.79% | Jun 30, 2026 | Q2 2025 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 13F | 0.78% | Jun 30, 2026 | Q2 2026 |
Nebius institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 3 | 0.04% | $5.5M | 100.0% |
| Q4 2020 | 3 | 0.06% | $12.6M | 100.0% |
| Q4 2021 | 2 | 0.06% | $13.4M | 100.0% |
| Q4 2022 | 3 | 0.05% | $3.2M | 100.0% |
| Q4 2023 | 3 | 0.07% | $5.1M | 56.7% |
| Q4 2024 | 275 | 36.1% | $2.8B | 90.0% |
| Q4 2025 | 605 | 40.8% | $8.6B | 60.3% |
| Q2 2026 | 1,038 | 61.3% | $42.7B | 62.5% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.