NBIS Institutional Ownership & Shareholders
NEBIUS GROUP N.V. (NBIS) is currently held by 1,057 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $41.96B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of NBIS tracked by InsiderSet, reporting ownership valued at approximately $3.18B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.78B, representing an estimated loss of -44.19% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 44% of the total disclosed NBIS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Goldman Sachs Group Inc, Invesco Ltd., and several other long-term asset managers with concentrated positions in NEBIUS GROUP N.V. (NBIS).
This page ranks the largest institutional NBIS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,057
Total Reported Value
$41.96B
Largest Holder
Blackrock, Inc.
Largest Position
$3.18B
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
63
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.05% | 11,531,270 | $3,184,590,799 | $1,777,429,958 | -$1,407,160,841 | -44.19% | |
| Goldman Sachs Group Inc | 0.28% | 9,799,741 | $2,706,394,387 | $1,510,532,078 | -$1,195,862,309 | -44.19% | |
| Invesco Ltd. | 0.15% | 6,943,270 | $1,917,522,837 | $1,070,235,638 | -$847,287,199 | -44.19% | |
| Orbis Allan Gray Ltd | 6.16% | 6,494,719 | $1,793,646,546 | $1,001,095,987 | -$792,550,559 | -44.19% | |
| Bank Of America Corp | 0.11% | 6,138,513 | $1,695,273,134 | $946,190,394 | -$749,082,740 | -44.19% | |
| Value Aligned Research Advisors, Llc | 10.08% | 6,104,121 | $1,685,775,097 | $940,889,211 | -$744,885,886 | -44.19% | |
| Fred Alger Management, Llc | 5.27% | 5,726,557 | $1,581,503,247 | $882,691,496 | -$698,811,751 | -44.19% | |
| Ubs Group Ag | 0.23% | 5,244,785 | $1,448,452,273 | $808,431,160 | -$640,021,113 | -44.19% | |
| Situational Awareness Partners | Leopold Aschenbrenner | 6.11% | 4,464,260 | $1,232,894,684 | $688,121,036 | -$544,773,648 | -44.19% |
| Lone Pine Capital | Stephen Mandel | 7.19% | 4,258,008 | $1,175,934,069 | $656,329,353 | -$519,604,716 | -44.19% |
| State Street Corp | 0.03% | 4,069,875 | $1,123,977,379 | $627,330,533 | -$496,646,847 | -44.19% | |
| Jennison Associates Llc | 0.66% | 3,983,899 | $1,100,233,339 | $614,078,192 | -$486,155,147 | -44.19% | |
| Jpmorgan Chase & Co | 0.06% | 3,995,496 | $1,043,424,043 | $615,865,753 | -$427,558,290 | -40.98% | |
| Morgan Stanley | 0.05% | 3,758,312 | $1,037,933,652 | $579,306,212 | -$458,627,440 | -44.19% | |
| Accel Leaders 4 Associates L.P. | 100.00% | 3,664,762 | $1,012,097,322 | $564,886,415 | -$447,210,907 | -44.19% | |
| Clear Street Group Inc. | 3.16% | 3,618,657 | $999,364,504 | $557,779,790 | -$441,584,714 | -44.19% | |
| Norges Bank | 0.08% | 2,911,196 | $803,984,999 | $448,731,751 | -$355,253,248 | -44.19% | |
| Accel Leaders 3 Associates L.P. | 100.00% | 2,251,905 | $621,908,604 | $347,108,637 | -$274,799,967 | -44.19% | |
| Geode Capital Management, Llc | 0.03% | 2,114,212 | $578,705,814 | $325,884,638 | -$252,821,176 | -43.69% | |
| Rovida Investment Management Ltd | 37.56% | 1,996,147 | $550,936,572 | $307,686,099 | -$243,250,473 | -44.15% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.78% | 1,978,639 | $546,440,733 | $304,987,415 | -$241,453,318 | -44.19% | |
| Two Sigma Investments, Lp | 0.31% | 1,504,937 | $415,618,451 | $231,970,989 | -$183,647,462 | -44.19% | |
| California Public Employees Retirement System | 0.19% | 1,231,662 | $340,148,095 | $189,848,381 | -$150,299,714 | -44.19% | |
| Janus Henderson Group Plc | 0.17% | 3,221,553 | $334,263,381 | $496,570,179 | +$162,306,798 | +48.56% | |
| Northern Trust Corp | 0.04% | 1,204,040 | $332,519,726 | $185,590,726 | -$146,929,000 | -44.19% | |
| Holocene Advisors, Lp | 0.76% | 1,203,154 | $332,275,040 | $185,454,158 | -$146,820,882 | -44.19% | |
| Nvidia Corp | 0.52% | 1,190,476 | $328,773,757 | $183,499,971 | -$145,273,786 | -44.19% | |
| Legal & General Group Plc | 0.07% | 1,189,276 | $328,442,356 | $183,315,003 | -$145,127,353 | -44.19% | |
| Anatole Investment Management Ltd | 51.22% | 1,093,920 | $302,107,886 | $168,616,829 | -$133,491,057 | -44.19% | |
| Voloridge Investment Management, Llc | 1.26% | 1,073,592 | $296,493,903 | $165,483,471 | -$131,010,432 | -44.19% | |
| Citigroup Inc | 0.13% | 1,039,920 | $287,194,707 | $160,293,269 | -$126,901,438 | -44.19% | |
| Gilder Gagnon Howe & Co Llc | 2.48% | 870,776 | $240,482,208 | $134,221,413 | -$106,260,795 | -44.19% | |
| Deutsche Bank Ag\ | 0.07% | 811,687 | $224,163,598 | $125,113,434 | -$99,050,164 | -44.19% | |
| Marex Group Plc | 1.82% | 775,567 | $214,188,339 | $119,545,897 | -$94,642,442 | -44.19% | |
| Tree Line Advisors (Hong Kong) Ltd. | 55.05% | 700,000 | $193,319,000 | $107,898,000 | -$85,421,000 | -44.19% | |
| First Trust Advisors Lp | 0.11% | 696,799 | $192,434,979 | $107,404,598 | -$85,030,381 | -44.19% | |
| Fmr Llc | 0.01% | 686,080 | $189,474,842 | $105,752,371 | -$83,722,471 | -44.19% | |
| Swiss National Bank | 0.10% | 685,590 | $189,339,390 | $105,676,843 | -$83,662,547 | -44.19% | |
| Barclays Plc | 0.06% | 659,157 | $182,039,389 | $101,602,460 | -$80,436,929 | -44.19% | |
| Wells Fargo & Company/Mn | 0.03% | 629,046 | $173,723,705 | $96,961,150 | -$76,762,555 | -44.19% | |
| Wt Asset Management Ltd | 2.79% | 730,495 | $172,309,161 | $112,598,499 | -$59,710,662 | -34.65% | |
| Price T Rowe Associates Inc | 0.02% | 610,056 | $168,480,000 | $94,034,032 | -$74,445,968 | -44.19% | |
| Wcm Investment Management, Llc | 0.30% | 633,765 | $165,507,730 | $97,688,537 | -$67,819,193 | -40.98% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.03% | 1,551,669 | $161,001,176 | $239,174,260 | +$78,173,084 | +48.55% | |
| Citadel Advisors Llc | 0.09% | 581,703 | $160,648,918 | $89,663,700 | -$70,985,218 | -44.19% | |
| Lpl Financial Llc | 0.03% | 562,832 | $155,437,350 | $86,754,924 | -$68,682,426 | -44.19% | |
| Bnp Paribas Financial Markets | 0.08% | 542,820 | $149,910,599 | $83,670,275 | -$66,240,324 | -44.19% | |
| Bank Of Montreal | 0.05% | 527,618 | $145,712,264 | $81,327,039 | -$64,385,225 | -44.19% | |
| Nuveen, Llc | 0.03% | 493,824 | $136,379,375 | $76,118,031 | -$60,261,344 | -44.19% | |
| Raymond James Financial Inc | 0.04% | 490,968 | $135,590,631 | $75,677,808 | -$59,912,823 | -44.19% |
Frequently asked questions about NBIS
Who are the largest institutional holders of NBIS?
The largest institutional holders of NBIS reported in the latest SEC Form 13F filings include Blackrock, Inc., Goldman Sachs Group Inc, Invesco Ltd., Orbis Allan Gray Ltd, and Bank Of America Corp. InsiderSet ranks institutional holders by their latest reported NBIS position.
What is NBIS institutional ownership?
This page tracks NBIS positions reported by institutional investment managers through SEC Form 13F. NEBIUS GROUP N.V. (NBIS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own NBIS?
InsiderSet currently tracks 1,057 institutional managers reporting NBIS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of NBIS shareholders.
How much NBIS stock do institutions own?
Institutional investment managers disclosed approximately $41.96B in NBIS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was NBIS institutional ownership last updated?
The latest NBIS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional NBIS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its NBIS position after the reporting date.
Are institutions buying or selling NBIS?
Institutional buying and selling can be analyzed by comparing NBIS positions across consecutive 13F reporting periods. InsiderSet's NBIS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View NBIS ownership changes.
How has NBIS institutional ownership changed over time?
InsiderSet tracks NBIS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.